/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 17:06:55,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 17:06:55,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 17:06:56,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 17:06:56,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 17:06:56,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 17:06:56,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 17:06:56,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 17:06:56,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 17:06:56,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 17:06:56,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 17:06:56,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 17:06:56,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 17:06:56,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 17:06:56,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 17:06:56,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 17:06:56,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 17:06:56,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 17:06:56,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 17:06:56,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 17:06:56,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 17:06:56,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 17:06:56,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 17:06:56,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 17:06:56,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 17:06:56,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 17:06:56,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 17:06:56,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 17:06:56,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 17:06:56,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 17:06:56,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 17:06:56,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 17:06:56,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 17:06:56,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 17:06:56,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 17:06:56,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 17:06:56,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 17:06:56,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 17:06:56,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 17:06:56,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 17:06:56,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 17:06:56,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 17:06:56,077 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 17:06:56,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 17:06:56,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 17:06:56,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 17:06:56,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 17:06:56,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 17:06:56,079 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 17:06:56,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 17:06:56,080 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 17:06:56,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 17:06:56,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 17:06:56,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 17:06:56,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 17:06:56,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 17:06:56,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 17:06:56,081 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 17:06:56,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 17:06:56,081 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 17:06:56,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 17:06:56,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 17:06:56,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 17:06:56,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 17:06:56,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 17:06:56,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:06:56,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 17:06:56,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 17:06:56,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 17:06:56,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 17:06:56,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 17:06:56,083 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 17:06:56,083 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 17:06:56,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 17:06:56,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 17:06:56,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 17:06:56,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 17:06:56,381 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 17:06:56,381 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 17:06:56,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-12-06 17:06:57,247 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 17:06:57,436 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 17:06:57,436 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-12-06 17:06:57,450 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/800b9932b/b6775cb8feff45cabb81f746e6e3b0cc/FLAGb44263362 [2022-12-06 17:06:57,465 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/800b9932b/b6775cb8feff45cabb81f746e6e3b0cc [2022-12-06 17:06:57,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 17:06:57,468 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 17:06:57,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 17:06:57,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 17:06:57,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 17:06:57,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a514db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57, skipping insertion in model container [2022-12-06 17:06:57,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 17:06:57,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 17:06:57,592 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2022-12-06 17:06:57,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:06:57,602 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 17:06:57,615 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2022-12-06 17:06:57,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:06:57,629 INFO L208 MainTranslator]: Completed translation [2022-12-06 17:06:57,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57 WrapperNode [2022-12-06 17:06:57,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 17:06:57,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 17:06:57,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 17:06:57,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 17:06:57,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,654 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 128 [2022-12-06 17:06:57,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 17:06:57,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 17:06:57,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 17:06:57,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 17:06:57,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,668 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 17:06:57,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 17:06:57,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 17:06:57,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 17:06:57,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (1/1) ... [2022-12-06 17:06:57,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:06:57,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:06:57,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 17:06:57,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 17:06:57,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 17:06:57,751 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 17:06:57,751 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 17:06:57,751 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 17:06:57,751 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 17:06:57,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 17:06:57,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 17:06:57,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 17:06:57,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 17:06:57,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 17:06:57,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 17:06:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 17:06:57,753 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 17:06:57,840 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 17:06:57,842 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 17:06:58,061 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 17:06:58,067 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 17:06:58,067 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 17:06:58,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:06:58 BoogieIcfgContainer [2022-12-06 17:06:58,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 17:06:58,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 17:06:58,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 17:06:58,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 17:06:58,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:06:57" (1/3) ... [2022-12-06 17:06:58,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b0e6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:06:58, skipping insertion in model container [2022-12-06 17:06:58,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:06:57" (2/3) ... [2022-12-06 17:06:58,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b0e6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:06:58, skipping insertion in model container [2022-12-06 17:06:58,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:06:58" (3/3) ... [2022-12-06 17:06:58,076 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2022-12-06 17:06:58,089 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 17:06:58,089 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 17:06:58,089 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 17:06:58,146 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 17:06:58,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 153 transitions, 322 flow [2022-12-06 17:06:58,247 INFO L130 PetriNetUnfolder]: 13/151 cut-off events. [2022-12-06 17:06:58,247 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 17:06:58,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 151 events. 13/151 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 253 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-06 17:06:58,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 153 transitions, 322 flow [2022-12-06 17:06:58,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 143 transitions, 298 flow [2022-12-06 17:06:58,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 17:06:58,272 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;@4aa1d00c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 17:06:58,272 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 17:06:58,295 INFO L130 PetriNetUnfolder]: 13/142 cut-off events. [2022-12-06 17:06:58,295 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 17:06:58,296 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:06:58,296 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:06:58,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:06:58,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:06:58,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1449878255, now seen corresponding path program 1 times [2022-12-06 17:06:58,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:06:58,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981123532] [2022-12-06 17:06:58,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:06:58,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:06:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:06:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:06:58,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:06:58,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981123532] [2022-12-06 17:06:58,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981123532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:06:58,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:06:58,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 17:06:58,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646952411] [2022-12-06 17:06:58,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:06:58,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 17:06:58,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:06:58,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 17:06:58,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-06 17:06:58,873 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 153 [2022-12-06 17:06:58,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 143 transitions, 298 flow. Second operand has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:06:58,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:06:58,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 153 [2022-12-06 17:06:58,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:06:59,142 INFO L130 PetriNetUnfolder]: 58/387 cut-off events. [2022-12-06 17:06:59,142 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-12-06 17:06:59,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 387 events. 58/387 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1861 event pairs, 12 based on Foata normal form. 24/384 useless extension candidates. Maximal degree in co-relation 359. Up to 44 conditions per place. [2022-12-06 17:06:59,149 INFO L137 encePairwiseOnDemand]: 133/153 looper letters, 52 selfloop transitions, 10 changer transitions 34/203 dead transitions. [2022-12-06 17:06:59,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 203 transitions, 637 flow [2022-12-06 17:06:59,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-06 17:06:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-06 17:06:59,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1860 transitions. [2022-12-06 17:06:59,167 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8104575163398693 [2022-12-06 17:06:59,172 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 14 predicate places. [2022-12-06 17:06:59,172 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 203 transitions, 637 flow [2022-12-06 17:06:59,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:06:59,173 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:06:59,174 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:06:59,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 17:06:59,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:06:59,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:06:59,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1079692193, now seen corresponding path program 1 times [2022-12-06 17:06:59,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:06:59,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535596474] [2022-12-06 17:06:59,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:06:59,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:06:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:06:59,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:06:59,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:06:59,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535596474] [2022-12-06 17:06:59,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535596474] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:06:59,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:06:59,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 17:06:59,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236298345] [2022-12-06 17:06:59,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:06:59,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 17:06:59,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:06:59,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 17:06:59,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 17:06:59,384 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 153 [2022-12-06 17:06:59,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 203 transitions, 637 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:06:59,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:06:59,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 153 [2022-12-06 17:06:59,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:06:59,524 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([368] L44-14-->L44-15: Formula: (= |v_thread1Thread1of1ForFork0_#t~ite3#1_3| |v_thread1Thread1of1ForFork0_#t~ite4#1_7|) InVars {thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|} OutVars{thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|, thread1Thread1of1ForFork0_#t~ite4#1=|v_thread1Thread1of1ForFork0_#t~ite4#1_7|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~ite4#1][131], [thread2Thread1of1ForFork1InUse, 9#L44-15true, thread1Thread1of1ForFork0InUse, 32#L50-17true, 180#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)), 95#L65-4true, 150#true]) [2022-12-06 17:06:59,525 INFO L382 tUnfolder$Statistics]: this new event has 65 ancestors and is cut-off event [2022-12-06 17:06:59,525 INFO L385 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-12-06 17:06:59,525 INFO L385 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2022-12-06 17:06:59,526 INFO L385 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2022-12-06 17:06:59,526 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([368] L44-14-->L44-15: Formula: (= |v_thread1Thread1of1ForFork0_#t~ite3#1_3| |v_thread1Thread1of1ForFork0_#t~ite4#1_7|) InVars {thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|} OutVars{thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|, thread1Thread1of1ForFork0_#t~ite4#1=|v_thread1Thread1of1ForFork0_#t~ite4#1_7|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~ite4#1][131], [thread2Thread1of1ForFork1InUse, 9#L44-15true, thread1Thread1of1ForFork0InUse, 180#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)), 3#L50-16true, 95#L65-4true, 150#true]) [2022-12-06 17:06:59,526 INFO L382 tUnfolder$Statistics]: this new event has 64 ancestors and is cut-off event [2022-12-06 17:06:59,526 INFO L385 tUnfolder$Statistics]: existing Event has 50 ancestors and is cut-off event [2022-12-06 17:06:59,526 INFO L385 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-12-06 17:06:59,526 INFO L385 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-12-06 17:06:59,526 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([368] L44-14-->L44-15: Formula: (= |v_thread1Thread1of1ForFork0_#t~ite3#1_3| |v_thread1Thread1of1ForFork0_#t~ite4#1_7|) InVars {thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|} OutVars{thread1Thread1of1ForFork0_#t~ite3#1=|v_thread1Thread1of1ForFork0_#t~ite3#1_3|, thread1Thread1of1ForFork0_#t~ite4#1=|v_thread1Thread1of1ForFork0_#t~ite4#1_7|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~ite4#1][45], [thread2Thread1of1ForFork1InUse, 9#L44-15true, 26#L50-15true, thread1Thread1of1ForFork0InUse, 180#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)), 153#(= ~result_5~0 0), 95#L65-4true]) [2022-12-06 17:06:59,527 INFO L382 tUnfolder$Statistics]: this new event has 63 ancestors and is cut-off event [2022-12-06 17:06:59,527 INFO L385 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-12-06 17:06:59,527 INFO L385 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2022-12-06 17:06:59,529 INFO L385 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2022-12-06 17:06:59,531 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([407] L50-14-->L50-15: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite7#1_3| |v_thread2Thread1of1ForFork1_#t~ite8#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_7|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite8#1][101], [thread2Thread1of1ForFork1InUse, 9#L44-15true, 26#L50-15true, thread1Thread1of1ForFork0InUse, 180#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)), 153#(= ~result_5~0 0), 95#L65-4true]) [2022-12-06 17:06:59,535 INFO L382 tUnfolder$Statistics]: this new event has 63 ancestors and is cut-off event [2022-12-06 17:06:59,535 INFO L385 tUnfolder$Statistics]: existing Event has 65 ancestors and is cut-off event [2022-12-06 17:06:59,535 INFO L385 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2022-12-06 17:06:59,535 INFO L385 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2022-12-06 17:06:59,538 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([407] L50-14-->L50-15: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite7#1_3| |v_thread2Thread1of1ForFork1_#t~ite8#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_7|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite8#1][101], [thread2Thread1of1ForFork1InUse, 25#L44-16true, 26#L50-15true, thread1Thread1of1ForFork0InUse, 180#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)), 153#(= ~result_5~0 0), 95#L65-4true]) [2022-12-06 17:06:59,538 INFO L382 tUnfolder$Statistics]: this new event has 64 ancestors and is cut-off event [2022-12-06 17:06:59,538 INFO L385 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-12-06 17:06:59,538 INFO L385 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-12-06 17:06:59,538 INFO L385 tUnfolder$Statistics]: existing Event has 50 ancestors and is cut-off event [2022-12-06 17:06:59,539 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([407] L50-14-->L50-15: Formula: (= |v_thread2Thread1of1ForFork1_#t~ite7#1_3| |v_thread2Thread1of1ForFork1_#t~ite8#1_7|) InVars {thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} OutVars{thread2Thread1of1ForFork1_#t~ite8#1=|v_thread2Thread1of1ForFork1_#t~ite8#1_7|, thread2Thread1of1ForFork1_#t~ite7#1=|v_thread2Thread1of1ForFork1_#t~ite7#1_3|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~ite8#1][101], [thread2Thread1of1ForFork1InUse, 26#L50-15true, thread1Thread1of1ForFork0InUse, 180#(= ~sort_label_is_null_3~0 (* (div ~sort_label_is_null_3~0 256) 256)), 138#L44-17true, 153#(= ~result_5~0 0), 95#L65-4true]) [2022-12-06 17:06:59,539 INFO L382 tUnfolder$Statistics]: this new event has 65 ancestors and is cut-off event [2022-12-06 17:06:59,539 INFO L385 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2022-12-06 17:06:59,539 INFO L385 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2022-12-06 17:06:59,539 INFO L385 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-12-06 17:06:59,558 INFO L130 PetriNetUnfolder]: 220/1306 cut-off events. [2022-12-06 17:06:59,558 INFO L131 PetriNetUnfolder]: For 420/453 co-relation queries the response was YES. [2022-12-06 17:06:59,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 1306 events. 220/1306 cut-off events. For 420/453 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 10531 event pairs, 36 based on Foata normal form. 8/1167 useless extension candidates. Maximal degree in co-relation 1416. Up to 173 conditions per place. [2022-12-06 17:06:59,566 INFO L137 encePairwiseOnDemand]: 141/153 looper letters, 44 selfloop transitions, 12 changer transitions 34/232 dead transitions. [2022-12-06 17:06:59,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 232 transitions, 866 flow [2022-12-06 17:06:59,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 17:06:59,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 17:06:59,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 546 transitions. [2022-12-06 17:06:59,568 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8921568627450981 [2022-12-06 17:06:59,569 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 17 predicate places. [2022-12-06 17:06:59,569 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 232 transitions, 866 flow [2022-12-06 17:06:59,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:06:59,569 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:06:59,569 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:06:59,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 17:06:59,570 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:06:59,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:06:59,570 INFO L85 PathProgramCache]: Analyzing trace with hash 823754743, now seen corresponding path program 2 times [2022-12-06 17:06:59,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:06:59,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516751086] [2022-12-06 17:06:59,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:06:59,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:06:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:06:59,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:06:59,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:06:59,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516751086] [2022-12-06 17:06:59,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516751086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:06:59,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:06:59,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 17:06:59,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865027810] [2022-12-06 17:06:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:06:59,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 17:06:59,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:06:59,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 17:06:59,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 17:06:59,766 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 153 [2022-12-06 17:06:59,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 232 transitions, 866 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:06:59,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:06:59,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 153 [2022-12-06 17:06:59,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:06:59,900 INFO L130 PetriNetUnfolder]: 197/1303 cut-off events. [2022-12-06 17:06:59,901 INFO L131 PetriNetUnfolder]: For 673/845 co-relation queries the response was YES. [2022-12-06 17:06:59,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2276 conditions, 1303 events. 197/1303 cut-off events. For 673/845 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 10600 event pairs, 35 based on Foata normal form. 14/1184 useless extension candidates. Maximal degree in co-relation 1509. Up to 176 conditions per place. [2022-12-06 17:06:59,907 INFO L137 encePairwiseOnDemand]: 142/153 looper letters, 65 selfloop transitions, 10 changer transitions 34/251 dead transitions. [2022-12-06 17:06:59,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 251 transitions, 1136 flow [2022-12-06 17:06:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 17:06:59,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 17:06:59,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2022-12-06 17:06:59,909 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2022-12-06 17:06:59,910 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 20 predicate places. [2022-12-06 17:06:59,910 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 251 transitions, 1136 flow [2022-12-06 17:06:59,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:06:59,910 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:06:59,911 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:06:59,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 17:06:59,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:06:59,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:06:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash 783064053, now seen corresponding path program 1 times [2022-12-06 17:06:59,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:06:59,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517399984] [2022-12-06 17:06:59,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:06:59,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:06:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:00,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:00,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:00,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517399984] [2022-12-06 17:07:00,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517399984] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:00,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:00,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 17:07:00,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862923503] [2022-12-06 17:07:00,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:00,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 17:07:00,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:00,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 17:07:00,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 17:07:00,019 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 153 [2022-12-06 17:07:00,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 251 transitions, 1136 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:00,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:00,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 153 [2022-12-06 17:07:00,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:00,205 INFO L130 PetriNetUnfolder]: 212/1421 cut-off events. [2022-12-06 17:07:00,205 INFO L131 PetriNetUnfolder]: For 1189/1573 co-relation queries the response was YES. [2022-12-06 17:07:00,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2677 conditions, 1421 events. 212/1421 cut-off events. For 1189/1573 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11363 event pairs, 37 based on Foata normal form. 28/1321 useless extension candidates. Maximal degree in co-relation 1646. Up to 215 conditions per place. [2022-12-06 17:07:00,210 INFO L137 encePairwiseOnDemand]: 143/153 looper letters, 73 selfloop transitions, 14 changer transitions 36/265 dead transitions. [2022-12-06 17:07:00,210 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 265 transitions, 1432 flow [2022-12-06 17:07:00,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 17:07:00,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 17:07:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 542 transitions. [2022-12-06 17:07:00,211 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8856209150326797 [2022-12-06 17:07:00,213 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 23 predicate places. [2022-12-06 17:07:00,213 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 265 transitions, 1432 flow [2022-12-06 17:07:00,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:00,214 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:00,214 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:00,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 17:07:00,214 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:00,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:00,215 INFO L85 PathProgramCache]: Analyzing trace with hash 235578755, now seen corresponding path program 2 times [2022-12-06 17:07:00,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:00,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419094560] [2022-12-06 17:07:00,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:00,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:00,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:00,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419094560] [2022-12-06 17:07:00,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419094560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:00,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:00,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 17:07:00,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224781480] [2022-12-06 17:07:00,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:00,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 17:07:00,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:00,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 17:07:00,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 17:07:00,273 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 153 [2022-12-06 17:07:00,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 265 transitions, 1432 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:00,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:00,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 153 [2022-12-06 17:07:00,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:00,417 INFO L130 PetriNetUnfolder]: 207/1436 cut-off events. [2022-12-06 17:07:00,417 INFO L131 PetriNetUnfolder]: For 1704/2204 co-relation queries the response was YES. [2022-12-06 17:07:00,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2871 conditions, 1436 events. 207/1436 cut-off events. For 1704/2204 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 11381 event pairs, 36 based on Foata normal form. 30/1342 useless extension candidates. Maximal degree in co-relation 2197. Up to 201 conditions per place. [2022-12-06 17:07:00,422 INFO L137 encePairwiseOnDemand]: 142/153 looper letters, 82 selfloop transitions, 16 changer transitions 36/276 dead transitions. [2022-12-06 17:07:00,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 276 transitions, 1739 flow [2022-12-06 17:07:00,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 17:07:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 17:07:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2022-12-06 17:07:00,424 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2022-12-06 17:07:00,426 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 26 predicate places. [2022-12-06 17:07:00,426 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 276 transitions, 1739 flow [2022-12-06 17:07:00,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:00,426 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:00,426 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:00,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 17:07:00,427 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:00,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:00,428 INFO L85 PathProgramCache]: Analyzing trace with hash -104647715, now seen corresponding path program 3 times [2022-12-06 17:07:00,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:00,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897872230] [2022-12-06 17:07:00,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:00,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:00,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:00,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897872230] [2022-12-06 17:07:00,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897872230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:00,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:00,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 17:07:00,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076024367] [2022-12-06 17:07:00,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:00,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 17:07:00,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:00,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 17:07:00,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 17:07:00,552 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 153 [2022-12-06 17:07:00,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 276 transitions, 1739 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:00,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:00,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 153 [2022-12-06 17:07:00,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:00,698 INFO L130 PetriNetUnfolder]: 171/1292 cut-off events. [2022-12-06 17:07:00,698 INFO L131 PetriNetUnfolder]: For 2029/2668 co-relation queries the response was YES. [2022-12-06 17:07:00,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2801 conditions, 1292 events. 171/1292 cut-off events. For 2029/2668 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 9856 event pairs, 37 based on Foata normal form. 32/1211 useless extension candidates. Maximal degree in co-relation 1789. Up to 160 conditions per place. [2022-12-06 17:07:00,703 INFO L137 encePairwiseOnDemand]: 141/153 looper letters, 78 selfloop transitions, 17 changer transitions 36/271 dead transitions. [2022-12-06 17:07:00,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 271 transitions, 1858 flow [2022-12-06 17:07:00,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 17:07:00,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 17:07:00,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2022-12-06 17:07:00,705 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2022-12-06 17:07:00,707 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 29 predicate places. [2022-12-06 17:07:00,707 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 271 transitions, 1858 flow [2022-12-06 17:07:00,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:00,708 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:00,708 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:00,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 17:07:00,708 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:00,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:00,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1196041719, now seen corresponding path program 3 times [2022-12-06 17:07:00,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:00,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670555197] [2022-12-06 17:07:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:00,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:00,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:00,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670555197] [2022-12-06 17:07:00,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670555197] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:00,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:00,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 17:07:00,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396887313] [2022-12-06 17:07:00,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:00,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 17:07:00,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:00,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 17:07:00,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 17:07:00,767 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 153 [2022-12-06 17:07:00,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 271 transitions, 1858 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:00,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:00,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 153 [2022-12-06 17:07:00,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:00,918 INFO L130 PetriNetUnfolder]: 155/1235 cut-off events. [2022-12-06 17:07:00,918 INFO L131 PetriNetUnfolder]: For 2522/3102 co-relation queries the response was YES. [2022-12-06 17:07:00,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2854 conditions, 1235 events. 155/1235 cut-off events. For 2522/3102 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 9296 event pairs, 36 based on Foata normal form. 42/1172 useless extension candidates. Maximal degree in co-relation 1797. Up to 179 conditions per place. [2022-12-06 17:07:00,924 INFO L137 encePairwiseOnDemand]: 140/153 looper letters, 74 selfloop transitions, 25 changer transitions 34/275 dead transitions. [2022-12-06 17:07:00,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 275 transitions, 2113 flow [2022-12-06 17:07:00,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 17:07:00,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 17:07:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 677 transitions. [2022-12-06 17:07:00,925 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8849673202614379 [2022-12-06 17:07:00,926 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 33 predicate places. [2022-12-06 17:07:00,926 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 275 transitions, 2113 flow [2022-12-06 17:07:00,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:00,927 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:00,927 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:00,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 17:07:00,927 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:00,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:00,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1253433568, now seen corresponding path program 1 times [2022-12-06 17:07:00,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:00,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492966613] [2022-12-06 17:07:00,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:00,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:01,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:01,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:01,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492966613] [2022-12-06 17:07:01,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492966613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:01,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:01,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:01,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590021736] [2022-12-06 17:07:01,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:01,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:01,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:01,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:01,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:01,139 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:01,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 275 transitions, 2113 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:01,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:01,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:01,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:01,734 INFO L130 PetriNetUnfolder]: 368/1681 cut-off events. [2022-12-06 17:07:01,734 INFO L131 PetriNetUnfolder]: For 5799/6474 co-relation queries the response was YES. [2022-12-06 17:07:01,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4672 conditions, 1681 events. 368/1681 cut-off events. For 5799/6474 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 13011 event pairs, 120 based on Foata normal form. 23/1592 useless extension candidates. Maximal degree in co-relation 3749. Up to 673 conditions per place. [2022-12-06 17:07:01,743 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 148 selfloop transitions, 8 changer transitions 86/386 dead transitions. [2022-12-06 17:07:01,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 386 transitions, 3148 flow [2022-12-06 17:07:01,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-06 17:07:01,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-06 17:07:01,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3359 transitions. [2022-12-06 17:07:01,750 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7318082788671024 [2022-12-06 17:07:01,751 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 62 predicate places. [2022-12-06 17:07:01,751 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 386 transitions, 3148 flow [2022-12-06 17:07:01,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:01,752 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:01,752 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:01,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 17:07:01,752 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:01,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:01,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1955258492, now seen corresponding path program 2 times [2022-12-06 17:07:01,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:01,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796781338] [2022-12-06 17:07:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:01,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:01,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:01,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796781338] [2022-12-06 17:07:01,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796781338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:01,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:01,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:01,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096895224] [2022-12-06 17:07:01,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:01,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:01,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:01,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:01,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:01,932 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:01,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 386 transitions, 3148 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:01,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:01,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:01,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:02,377 INFO L130 PetriNetUnfolder]: 386/1848 cut-off events. [2022-12-06 17:07:02,377 INFO L131 PetriNetUnfolder]: For 7755/8881 co-relation queries the response was YES. [2022-12-06 17:07:02,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6024 conditions, 1848 events. 386/1848 cut-off events. For 7755/8881 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 14836 event pairs, 94 based on Foata normal form. 3/1738 useless extension candidates. Maximal degree in co-relation 3991. Up to 749 conditions per place. [2022-12-06 17:07:02,385 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 221 selfloop transitions, 44 changer transitions 116/527 dead transitions. [2022-12-06 17:07:02,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 527 transitions, 4959 flow [2022-12-06 17:07:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-06 17:07:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-06 17:07:02,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2029 transitions. [2022-12-06 17:07:02,389 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7367465504720406 [2022-12-06 17:07:02,390 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 79 predicate places. [2022-12-06 17:07:02,390 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 527 transitions, 4959 flow [2022-12-06 17:07:02,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:02,391 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:02,391 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:02,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 17:07:02,391 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:02,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:02,392 INFO L85 PathProgramCache]: Analyzing trace with hash -784460988, now seen corresponding path program 3 times [2022-12-06 17:07:02,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:02,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761779184] [2022-12-06 17:07:02,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:02,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:02,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:02,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:02,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761779184] [2022-12-06 17:07:02,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761779184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:02,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:02,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:02,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558463500] [2022-12-06 17:07:02,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:02,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:02,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:02,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:02,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:02,560 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:02,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 527 transitions, 4959 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:02,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:02,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:02,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:03,068 INFO L130 PetriNetUnfolder]: 424/1930 cut-off events. [2022-12-06 17:07:03,068 INFO L131 PetriNetUnfolder]: For 10519/12504 co-relation queries the response was YES. [2022-12-06 17:07:03,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7502 conditions, 1930 events. 424/1930 cut-off events. For 10519/12504 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 15607 event pairs, 94 based on Foata normal form. 59/1882 useless extension candidates. Maximal degree in co-relation 6183. Up to 831 conditions per place. [2022-12-06 17:07:03,078 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 258 selfloop transitions, 46 changer transitions 162/610 dead transitions. [2022-12-06 17:07:03,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 610 transitions, 6692 flow [2022-12-06 17:07:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-06 17:07:03,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-06 17:07:03,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3124 transitions. [2022-12-06 17:07:03,084 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7292250233426704 [2022-12-06 17:07:03,084 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 106 predicate places. [2022-12-06 17:07:03,084 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 610 transitions, 6692 flow [2022-12-06 17:07:03,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:03,085 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:03,085 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:03,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 17:07:03,085 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:03,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:03,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1091493096, now seen corresponding path program 4 times [2022-12-06 17:07:03,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:03,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115888890] [2022-12-06 17:07:03,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:03,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:03,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:03,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:03,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115888890] [2022-12-06 17:07:03,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115888890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:03,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:03,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:03,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100784728] [2022-12-06 17:07:03,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:03,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:03,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:03,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:03,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:03,259 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:03,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 610 transitions, 6692 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:03,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:03,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:03,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:03,692 INFO L130 PetriNetUnfolder]: 445/2035 cut-off events. [2022-12-06 17:07:03,693 INFO L131 PetriNetUnfolder]: For 13546/16050 co-relation queries the response was YES. [2022-12-06 17:07:03,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9006 conditions, 2035 events. 445/2035 cut-off events. For 13546/16050 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 16795 event pairs, 89 based on Foata normal form. 65/1988 useless extension candidates. Maximal degree in co-relation 6021. Up to 885 conditions per place. [2022-12-06 17:07:03,704 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 253 selfloop transitions, 45 changer transitions 194/638 dead transitions. [2022-12-06 17:07:03,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 638 transitions, 8011 flow [2022-12-06 17:07:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 17:07:03,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 17:07:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2134 transitions. [2022-12-06 17:07:03,707 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7340901272789818 [2022-12-06 17:07:03,707 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 124 predicate places. [2022-12-06 17:07:03,707 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 638 transitions, 8011 flow [2022-12-06 17:07:03,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:03,708 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:03,708 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:03,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 17:07:03,708 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:03,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:03,708 INFO L85 PathProgramCache]: Analyzing trace with hash 996758780, now seen corresponding path program 5 times [2022-12-06 17:07:03,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:03,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495486815] [2022-12-06 17:07:03,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:03,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:03,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:03,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:03,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495486815] [2022-12-06 17:07:03,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495486815] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:03,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:03,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:03,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8332829] [2022-12-06 17:07:03,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:03,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:03,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:03,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:03,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:03,848 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:03,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 638 transitions, 8011 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:03,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:03,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:03,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:04,380 INFO L130 PetriNetUnfolder]: 443/2083 cut-off events. [2022-12-06 17:07:04,380 INFO L131 PetriNetUnfolder]: For 16185/19330 co-relation queries the response was YES. [2022-12-06 17:07:04,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10351 conditions, 2083 events. 443/2083 cut-off events. For 16185/19330 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 17435 event pairs, 91 based on Foata normal form. 76/2048 useless extension candidates. Maximal degree in co-relation 6954. Up to 903 conditions per place. [2022-12-06 17:07:04,396 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 249 selfloop transitions, 43 changer transitions 232/670 dead transitions. [2022-12-06 17:07:04,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 670 transitions, 9511 flow [2022-12-06 17:07:04,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-06 17:07:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-06 17:07:04,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2684 transitions. [2022-12-06 17:07:04,401 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7309368191721133 [2022-12-06 17:07:04,401 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 147 predicate places. [2022-12-06 17:07:04,401 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 670 transitions, 9511 flow [2022-12-06 17:07:04,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:04,402 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:04,402 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:04,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 17:07:04,402 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:04,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:04,403 INFO L85 PathProgramCache]: Analyzing trace with hash -846373480, now seen corresponding path program 6 times [2022-12-06 17:07:04,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:04,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816274405] [2022-12-06 17:07:04,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:04,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:04,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:04,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:04,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816274405] [2022-12-06 17:07:04,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816274405] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:04,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:04,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:04,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606676012] [2022-12-06 17:07:04,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:04,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:04,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:04,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:04,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:04,560 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:04,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 670 transitions, 9511 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:04,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:04,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:04,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:05,078 INFO L130 PetriNetUnfolder]: 442/2071 cut-off events. [2022-12-06 17:07:05,078 INFO L131 PetriNetUnfolder]: For 21026/25094 co-relation queries the response was YES. [2022-12-06 17:07:05,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11475 conditions, 2071 events. 442/2071 cut-off events. For 21026/25094 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 17281 event pairs, 108 based on Foata normal form. 47/2004 useless extension candidates. Maximal degree in co-relation 7689. Up to 900 conditions per place. [2022-12-06 17:07:05,091 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 236 selfloop transitions, 28 changer transitions 274/680 dead transitions. [2022-12-06 17:07:05,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 680 transitions, 10741 flow [2022-12-06 17:07:05,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:05,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:05,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2244 transitions. [2022-12-06 17:07:05,093 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2022-12-06 17:07:05,094 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 166 predicate places. [2022-12-06 17:07:05,094 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 680 transitions, 10741 flow [2022-12-06 17:07:05,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:05,095 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:05,095 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:05,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 17:07:05,095 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:05,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:05,096 INFO L85 PathProgramCache]: Analyzing trace with hash -851580850, now seen corresponding path program 7 times [2022-12-06 17:07:05,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:05,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523099029] [2022-12-06 17:07:05,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:05,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:05,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:05,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523099029] [2022-12-06 17:07:05,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523099029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:05,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:05,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:05,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123275788] [2022-12-06 17:07:05,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:05,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:05,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:05,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:05,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:05,251 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:05,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 680 transitions, 10741 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:05,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:05,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:05,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:05,920 INFO L130 PetriNetUnfolder]: 469/2228 cut-off events. [2022-12-06 17:07:05,920 INFO L131 PetriNetUnfolder]: For 24715/29392 co-relation queries the response was YES. [2022-12-06 17:07:05,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13395 conditions, 2228 events. 469/2228 cut-off events. For 24715/29392 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 19152 event pairs, 85 based on Foata normal form. 83/2201 useless extension candidates. Maximal degree in co-relation 9080. Up to 934 conditions per place. [2022-12-06 17:07:05,931 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 261 selfloop transitions, 45 changer transitions 321/773 dead transitions. [2022-12-06 17:07:05,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 773 transitions, 13496 flow [2022-12-06 17:07:05,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-06 17:07:05,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-06 17:07:05,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3467 transitions. [2022-12-06 17:07:05,934 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7309719586759434 [2022-12-06 17:07:05,935 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 196 predicate places. [2022-12-06 17:07:05,935 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 773 transitions, 13496 flow [2022-12-06 17:07:05,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:05,935 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:05,935 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:05,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-06 17:07:05,936 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:05,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:05,936 INFO L85 PathProgramCache]: Analyzing trace with hash -230064426, now seen corresponding path program 8 times [2022-12-06 17:07:05,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:05,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378288533] [2022-12-06 17:07:05,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:05,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:06,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:06,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:06,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378288533] [2022-12-06 17:07:06,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378288533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:06,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:06,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:06,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183301440] [2022-12-06 17:07:06,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:06,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:06,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:06,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:06,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:06,124 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:06,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 773 transitions, 13496 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:06,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:06,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:06,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:06,733 INFO L130 PetriNetUnfolder]: 524/2320 cut-off events. [2022-12-06 17:07:06,733 INFO L131 PetriNetUnfolder]: For 30130/35137 co-relation queries the response was YES. [2022-12-06 17:07:06,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15852 conditions, 2320 events. 524/2320 cut-off events. For 30130/35137 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 19716 event pairs, 101 based on Foata normal form. 40/2245 useless extension candidates. Maximal degree in co-relation 10909. Up to 974 conditions per place. [2022-12-06 17:07:06,745 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 331 selfloop transitions, 56 changer transitions 364/893 dead transitions. [2022-12-06 17:07:06,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 893 transitions, 17224 flow [2022-12-06 17:07:06,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-06 17:07:06,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-06 17:07:06,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2690 transitions. [2022-12-06 17:07:06,750 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7325708061002179 [2022-12-06 17:07:06,750 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 219 predicate places. [2022-12-06 17:07:06,750 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 893 transitions, 17224 flow [2022-12-06 17:07:06,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:06,751 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:06,751 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:06,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-06 17:07:06,752 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:06,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:06,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2073728560, now seen corresponding path program 9 times [2022-12-06 17:07:06,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:06,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434821357] [2022-12-06 17:07:06,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:06,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:06,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:06,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:06,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434821357] [2022-12-06 17:07:06,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434821357] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:06,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:06,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:06,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926211506] [2022-12-06 17:07:06,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:06,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:06,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:06,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:06,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:06,901 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:06,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 893 transitions, 17224 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:06,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:06,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:06,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:07,571 INFO L130 PetriNetUnfolder]: 530/2374 cut-off events. [2022-12-06 17:07:07,571 INFO L131 PetriNetUnfolder]: For 33398/38881 co-relation queries the response was YES. [2022-12-06 17:07:07,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17653 conditions, 2374 events. 530/2374 cut-off events. For 33398/38881 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 20589 event pairs, 99 based on Foata normal form. 34/2304 useless extension candidates. Maximal degree in co-relation 13870. Up to 1008 conditions per place. [2022-12-06 17:07:07,582 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 342 selfloop transitions, 54 changer transitions 401/941 dead transitions. [2022-12-06 17:07:07,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 941 transitions, 19890 flow [2022-12-06 17:07:07,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 17:07:07,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 17:07:07,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2577 transitions. [2022-12-06 17:07:07,584 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.73231031543052 [2022-12-06 17:07:07,584 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 241 predicate places. [2022-12-06 17:07:07,585 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 941 transitions, 19890 flow [2022-12-06 17:07:07,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:07,585 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:07,585 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:07,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-06 17:07:07,585 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:07,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:07,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1707513088, now seen corresponding path program 10 times [2022-12-06 17:07:07,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:07,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644766] [2022-12-06 17:07:07,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:07,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:07,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:07,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:07,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644766] [2022-12-06 17:07:07,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:07,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:07,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:07,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291014457] [2022-12-06 17:07:07,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:07,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:07,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:07,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:07,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:07,715 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:07,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 941 transitions, 19890 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:07,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:07,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:07,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:08,432 INFO L130 PetriNetUnfolder]: 541/2506 cut-off events. [2022-12-06 17:07:08,432 INFO L131 PetriNetUnfolder]: For 38971/45376 co-relation queries the response was YES. [2022-12-06 17:07:08,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19662 conditions, 2506 events. 541/2506 cut-off events. For 38971/45376 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 22219 event pairs, 95 based on Foata normal form. 29/2429 useless extension candidates. Maximal degree in co-relation 13514. Up to 1028 conditions per place. [2022-12-06 17:07:08,444 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 329 selfloop transitions, 63 changer transitions 440/978 dead transitions. [2022-12-06 17:07:08,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 978 transitions, 22417 flow [2022-12-06 17:07:08,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-06 17:07:08,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-06 17:07:08,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2791 transitions. [2022-12-06 17:07:08,456 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7296732026143791 [2022-12-06 17:07:08,456 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 265 predicate places. [2022-12-06 17:07:08,456 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 978 transitions, 22417 flow [2022-12-06 17:07:08,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:08,457 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:08,457 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:08,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-06 17:07:08,457 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:08,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:08,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1821855048, now seen corresponding path program 11 times [2022-12-06 17:07:08,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:08,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290211199] [2022-12-06 17:07:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:08,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:08,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:08,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:08,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290211199] [2022-12-06 17:07:08,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290211199] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:08,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:08,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:08,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748584863] [2022-12-06 17:07:08,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:08,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:08,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:08,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:08,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:08,587 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:08,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 978 transitions, 22417 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:08,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:08,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:08,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:09,226 INFO L130 PetriNetUnfolder]: 549/2604 cut-off events. [2022-12-06 17:07:09,226 INFO L131 PetriNetUnfolder]: For 45383/52652 co-relation queries the response was YES. [2022-12-06 17:07:09,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21698 conditions, 2604 events. 549/2604 cut-off events. For 45383/52652 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 23551 event pairs, 90 based on Foata normal form. 31/2529 useless extension candidates. Maximal degree in co-relation 14805. Up to 1062 conditions per place. [2022-12-06 17:07:09,239 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 330 selfloop transitions, 43 changer transitions 485/1004 dead transitions. [2022-12-06 17:07:09,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 1004 transitions, 24876 flow [2022-12-06 17:07:09,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-06 17:07:09,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-06 17:07:09,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3017 transitions. [2022-12-06 17:07:09,242 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7303316388283708 [2022-12-06 17:07:09,243 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 291 predicate places. [2022-12-06 17:07:09,243 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 1004 transitions, 24876 flow [2022-12-06 17:07:09,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:09,243 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:09,243 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:09,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-06 17:07:09,244 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:09,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:09,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1211856188, now seen corresponding path program 12 times [2022-12-06 17:07:09,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:09,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103103038] [2022-12-06 17:07:09,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:09,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:09,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:09,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:09,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103103038] [2022-12-06 17:07:09,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103103038] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:09,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:09,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:09,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253576143] [2022-12-06 17:07:09,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:09,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:09,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:09,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:09,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:09,434 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:09,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 1004 transitions, 24876 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:09,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:09,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:09,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:10,120 INFO L130 PetriNetUnfolder]: 559/2655 cut-off events. [2022-12-06 17:07:10,120 INFO L131 PetriNetUnfolder]: For 50981/59177 co-relation queries the response was YES. [2022-12-06 17:07:10,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23720 conditions, 2655 events. 559/2655 cut-off events. For 50981/59177 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 24138 event pairs, 87 based on Foata normal form. 30/2576 useless extension candidates. Maximal degree in co-relation 16203. Up to 1081 conditions per place. [2022-12-06 17:07:10,133 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 328 selfloop transitions, 43 changer transitions 519/1036 dead transitions. [2022-12-06 17:07:10,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 1036 transitions, 27539 flow [2022-12-06 17:07:10,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2248 transitions. [2022-12-06 17:07:10,136 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.734640522875817 [2022-12-06 17:07:10,136 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 310 predicate places. [2022-12-06 17:07:10,136 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 1036 transitions, 27539 flow [2022-12-06 17:07:10,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:10,136 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:10,136 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:10,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-06 17:07:10,137 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:10,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:10,137 INFO L85 PathProgramCache]: Analyzing trace with hash 398668700, now seen corresponding path program 13 times [2022-12-06 17:07:10,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:10,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85847846] [2022-12-06 17:07:10,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:10,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:10,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:10,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85847846] [2022-12-06 17:07:10,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85847846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:10,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:10,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:10,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939114042] [2022-12-06 17:07:10,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:10,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:10,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:10,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:10,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:10,259 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:10,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 1036 transitions, 27539 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:10,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:10,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:10,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:11,002 INFO L130 PetriNetUnfolder]: 560/2669 cut-off events. [2022-12-06 17:07:11,002 INFO L131 PetriNetUnfolder]: For 58656/68360 co-relation queries the response was YES. [2022-12-06 17:07:11,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25376 conditions, 2669 events. 560/2669 cut-off events. For 58656/68360 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 24400 event pairs, 94 based on Foata normal form. 36/2602 useless extension candidates. Maximal degree in co-relation 18367. Up to 1092 conditions per place. [2022-12-06 17:07:11,014 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 318 selfloop transitions, 28 changer transitions 557/1047 dead transitions. [2022-12-06 17:07:11,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 1047 transitions, 29686 flow [2022-12-06 17:07:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:11,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:11,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2250 transitions. [2022-12-06 17:07:11,016 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7352941176470589 [2022-12-06 17:07:11,016 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 329 predicate places. [2022-12-06 17:07:11,016 INFO L495 AbstractCegarLoop]: Abstraction has has 466 places, 1047 transitions, 29686 flow [2022-12-06 17:07:11,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:11,017 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:11,017 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:11,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-06 17:07:11,017 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1920469010, now seen corresponding path program 14 times [2022-12-06 17:07:11,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:11,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207857193] [2022-12-06 17:07:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:11,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:11,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:11,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:11,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207857193] [2022-12-06 17:07:11,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207857193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:11,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:11,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:11,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353459068] [2022-12-06 17:07:11,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:11,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:11,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:11,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:11,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:11,139 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:11,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 1047 transitions, 29686 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:11,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:11,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:11,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:11,819 INFO L130 PetriNetUnfolder]: 576/2735 cut-off events. [2022-12-06 17:07:11,819 INFO L131 PetriNetUnfolder]: For 70191/82369 co-relation queries the response was YES. [2022-12-06 17:07:11,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27699 conditions, 2735 events. 576/2735 cut-off events. For 70191/82369 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 25075 event pairs, 96 based on Foata normal form. 34/2655 useless extension candidates. Maximal degree in co-relation 18871. Up to 1114 conditions per place. [2022-12-06 17:07:11,832 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 316 selfloop transitions, 39 changer transitions 590/1089 dead transitions. [2022-12-06 17:07:11,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 1089 transitions, 32913 flow [2022-12-06 17:07:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 17:07:11,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 17:07:11,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2137 transitions. [2022-12-06 17:07:11,835 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7351221190230478 [2022-12-06 17:07:11,835 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 347 predicate places. [2022-12-06 17:07:11,835 INFO L495 AbstractCegarLoop]: Abstraction has has 484 places, 1089 transitions, 32913 flow [2022-12-06 17:07:11,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:11,835 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:11,836 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:11,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-06 17:07:11,836 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:11,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:11,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2124172510, now seen corresponding path program 15 times [2022-12-06 17:07:11,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:11,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104005244] [2022-12-06 17:07:11,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:11,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:11,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:11,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:11,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104005244] [2022-12-06 17:07:11,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104005244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:11,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:11,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:11,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728118706] [2022-12-06 17:07:11,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:11,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:11,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:11,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:11,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:11,955 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:11,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 1089 transitions, 32913 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:11,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:11,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:11,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:12,724 INFO L130 PetriNetUnfolder]: 583/2798 cut-off events. [2022-12-06 17:07:12,724 INFO L131 PetriNetUnfolder]: For 74955/86981 co-relation queries the response was YES. [2022-12-06 17:07:12,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29799 conditions, 2798 events. 583/2798 cut-off events. For 74955/86981 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 26047 event pairs, 89 based on Foata normal form. 34/2728 useless extension candidates. Maximal degree in co-relation 21762. Up to 1134 conditions per place. [2022-12-06 17:07:12,739 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 314 selfloop transitions, 30 changer transitions 624/1114 dead transitions. [2022-12-06 17:07:12,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 1114 transitions, 35687 flow [2022-12-06 17:07:12,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 17:07:12,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 17:07:12,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2462 transitions. [2022-12-06 17:07:12,741 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7314319667260843 [2022-12-06 17:07:12,742 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 368 predicate places. [2022-12-06 17:07:12,742 INFO L495 AbstractCegarLoop]: Abstraction has has 505 places, 1114 transitions, 35687 flow [2022-12-06 17:07:12,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:12,742 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:12,742 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:12,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-06 17:07:12,742 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:12,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:12,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1259316260, now seen corresponding path program 16 times [2022-12-06 17:07:12,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:12,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388283296] [2022-12-06 17:07:12,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:12,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:12,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:12,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:12,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388283296] [2022-12-06 17:07:12,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388283296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:12,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:12,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:12,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428268398] [2022-12-06 17:07:12,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:12,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:12,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:12,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:12,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:12,863 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:12,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 1114 transitions, 35687 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:12,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:12,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:12,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:13,701 INFO L130 PetriNetUnfolder]: 591/2850 cut-off events. [2022-12-06 17:07:13,701 INFO L131 PetriNetUnfolder]: For 86069/100254 co-relation queries the response was YES. [2022-12-06 17:07:13,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31935 conditions, 2850 events. 591/2850 cut-off events. For 86069/100254 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 26686 event pairs, 92 based on Foata normal form. 48/2795 useless extension candidates. Maximal degree in co-relation 23419. Up to 1153 conditions per place. [2022-12-06 17:07:13,714 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 303 selfloop transitions, 34 changer transitions 659/1140 dead transitions. [2022-12-06 17:07:13,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 1140 transitions, 38614 flow [2022-12-06 17:07:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2248 transitions. [2022-12-06 17:07:13,717 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.734640522875817 [2022-12-06 17:07:13,717 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 387 predicate places. [2022-12-06 17:07:13,717 INFO L495 AbstractCegarLoop]: Abstraction has has 524 places, 1140 transitions, 38614 flow [2022-12-06 17:07:13,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:13,717 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:13,717 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:13,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-06 17:07:13,718 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:13,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:13,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1715476186, now seen corresponding path program 17 times [2022-12-06 17:07:13,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:13,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521893441] [2022-12-06 17:07:13,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:13,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:13,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:13,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:13,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521893441] [2022-12-06 17:07:13,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521893441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:13,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:13,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:13,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996478475] [2022-12-06 17:07:13,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:13,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:13,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:13,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:13,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:13,841 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:13,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 1140 transitions, 38614 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:13,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:13,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:13,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:14,747 INFO L130 PetriNetUnfolder]: 590/2886 cut-off events. [2022-12-06 17:07:14,747 INFO L131 PetriNetUnfolder]: For 94424/108985 co-relation queries the response was YES. [2022-12-06 17:07:14,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33738 conditions, 2886 events. 590/2886 cut-off events. For 94424/108985 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 27346 event pairs, 87 based on Foata normal form. 26/2808 useless extension candidates. Maximal degree in co-relation 22927. Up to 1159 conditions per place. [2022-12-06 17:07:14,763 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 292 selfloop transitions, 13 changer transitions 695/1146 dead transitions. [2022-12-06 17:07:14,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 1146 transitions, 40860 flow [2022-12-06 17:07:14,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:07:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:07:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2355 transitions. [2022-12-06 17:07:14,775 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7329598506069094 [2022-12-06 17:07:14,775 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 407 predicate places. [2022-12-06 17:07:14,775 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 1146 transitions, 40860 flow [2022-12-06 17:07:14,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:14,776 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:14,776 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:14,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-06 17:07:14,776 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:14,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:14,776 INFO L85 PathProgramCache]: Analyzing trace with hash 328696334, now seen corresponding path program 18 times [2022-12-06 17:07:14,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:14,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982846453] [2022-12-06 17:07:14,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:14,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:14,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:14,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:14,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982846453] [2022-12-06 17:07:14,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982846453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:14,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:14,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:14,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145980598] [2022-12-06 17:07:14,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:14,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:14,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:14,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:14,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:14,909 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:14,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 1146 transitions, 40860 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:14,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:14,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:14,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:15,798 INFO L130 PetriNetUnfolder]: 601/2906 cut-off events. [2022-12-06 17:07:15,799 INFO L131 PetriNetUnfolder]: For 108192/124808 co-relation queries the response was YES. [2022-12-06 17:07:15,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35973 conditions, 2906 events. 601/2906 cut-off events. For 108192/124808 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 27538 event pairs, 100 based on Foata normal form. 143/2945 useless extension candidates. Maximal degree in co-relation 28599. Up to 1173 conditions per place. [2022-12-06 17:07:15,812 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 263 selfloop transitions, 40 changer transitions 732/1179 dead transitions. [2022-12-06 17:07:15,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 1179 transitions, 44231 flow [2022-12-06 17:07:15,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 17:07:15,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 17:07:15,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2463 transitions. [2022-12-06 17:07:15,815 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.731729055258467 [2022-12-06 17:07:15,815 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 428 predicate places. [2022-12-06 17:07:15,815 INFO L495 AbstractCegarLoop]: Abstraction has has 565 places, 1179 transitions, 44231 flow [2022-12-06 17:07:15,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:15,815 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:15,816 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:15,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-06 17:07:15,816 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:15,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:15,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1994582736, now seen corresponding path program 19 times [2022-12-06 17:07:15,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:15,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42851605] [2022-12-06 17:07:15,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:15,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:15,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:15,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:15,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42851605] [2022-12-06 17:07:15,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42851605] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:15,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:15,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:15,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703516528] [2022-12-06 17:07:15,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:15,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:15,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:15,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:15,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:15,926 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:15,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 1179 transitions, 44231 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:15,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:15,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:15,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:16,985 INFO L130 PetriNetUnfolder]: 610/3033 cut-off events. [2022-12-06 17:07:16,985 INFO L131 PetriNetUnfolder]: For 109858/120667 co-relation queries the response was YES. [2022-12-06 17:07:16,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38533 conditions, 3033 events. 610/3033 cut-off events. For 109858/120667 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 29286 event pairs, 92 based on Foata normal form. 83/3011 useless extension candidates. Maximal degree in co-relation 26226. Up to 1193 conditions per place. [2022-12-06 17:07:16,999 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 260 selfloop transitions, 31 changer transitions 772/1209 dead transitions. [2022-12-06 17:07:16,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 1209 transitions, 47591 flow [2022-12-06 17:07:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-06 17:07:16,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-06 17:07:17,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3120 transitions. [2022-12-06 17:07:17,001 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7282913165266106 [2022-12-06 17:07:17,002 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 455 predicate places. [2022-12-06 17:07:17,002 INFO L495 AbstractCegarLoop]: Abstraction has has 592 places, 1209 transitions, 47591 flow [2022-12-06 17:07:17,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:17,002 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:17,002 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:17,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-06 17:07:17,002 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:17,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:17,003 INFO L85 PathProgramCache]: Analyzing trace with hash -497734000, now seen corresponding path program 20 times [2022-12-06 17:07:17,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:17,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843025360] [2022-12-06 17:07:17,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:17,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:17,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:17,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843025360] [2022-12-06 17:07:17,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843025360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:17,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:17,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:17,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87838454] [2022-12-06 17:07:17,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:17,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:17,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:17,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:17,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:17,134 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:17,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 592 places, 1209 transitions, 47591 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:17,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:17,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:17,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:18,086 INFO L130 PetriNetUnfolder]: 641/3132 cut-off events. [2022-12-06 17:07:18,086 INFO L131 PetriNetUnfolder]: For 122488/134557 co-relation queries the response was YES. [2022-12-06 17:07:18,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42054 conditions, 3132 events. 641/3132 cut-off events. For 122488/134557 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 30400 event pairs, 87 based on Foata normal form. 69/3095 useless extension candidates. Maximal degree in co-relation 28678. Up to 1232 conditions per place. [2022-12-06 17:07:18,102 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 286 selfloop transitions, 38 changer transitions 811/1281 dead transitions. [2022-12-06 17:07:18,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 1281 transitions, 52995 flow [2022-12-06 17:07:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 17:07:18,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 17:07:18,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2468 transitions. [2022-12-06 17:07:18,104 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7332144979203803 [2022-12-06 17:07:18,104 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 476 predicate places. [2022-12-06 17:07:18,105 INFO L495 AbstractCegarLoop]: Abstraction has has 613 places, 1281 transitions, 52995 flow [2022-12-06 17:07:18,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:18,105 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:18,105 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:18,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-06 17:07:18,105 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:18,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:18,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1024021756, now seen corresponding path program 21 times [2022-12-06 17:07:18,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:18,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149350683] [2022-12-06 17:07:18,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:18,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:18,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:18,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:18,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149350683] [2022-12-06 17:07:18,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149350683] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:18,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:18,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:18,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625990360] [2022-12-06 17:07:18,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:18,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:18,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:18,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:18,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:18,221 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:18,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 1281 transitions, 52995 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:18,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:18,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:18,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:19,218 INFO L130 PetriNetUnfolder]: 657/3162 cut-off events. [2022-12-06 17:07:19,218 INFO L131 PetriNetUnfolder]: For 141726/157195 co-relation queries the response was YES. [2022-12-06 17:07:19,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44720 conditions, 3162 events. 657/3162 cut-off events. For 141726/157195 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 30620 event pairs, 101 based on Foata normal form. 87/3137 useless extension candidates. Maximal degree in co-relation 30526. Up to 1241 conditions per place. [2022-12-06 17:07:19,234 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 289 selfloop transitions, 45 changer transitions 847/1325 dead transitions. [2022-12-06 17:07:19,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 633 places, 1325 transitions, 57336 flow [2022-12-06 17:07:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:07:19,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:07:19,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2355 transitions. [2022-12-06 17:07:19,236 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7329598506069094 [2022-12-06 17:07:19,236 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 496 predicate places. [2022-12-06 17:07:19,236 INFO L495 AbstractCegarLoop]: Abstraction has has 633 places, 1325 transitions, 57336 flow [2022-12-06 17:07:19,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:19,237 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:19,237 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:19,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-06 17:07:19,237 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:19,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:19,237 INFO L85 PathProgramCache]: Analyzing trace with hash 830577086, now seen corresponding path program 22 times [2022-12-06 17:07:19,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:19,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474131676] [2022-12-06 17:07:19,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:19,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:19,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:19,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474131676] [2022-12-06 17:07:19,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474131676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:19,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:19,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:19,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561191903] [2022-12-06 17:07:19,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:19,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:19,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:19,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:19,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:19,347 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:19,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 633 places, 1325 transitions, 57336 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:19,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:19,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:19,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:20,593 INFO L130 PetriNetUnfolder]: 664/3241 cut-off events. [2022-12-06 17:07:20,593 INFO L131 PetriNetUnfolder]: For 148077/162671 co-relation queries the response was YES. [2022-12-06 17:07:20,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47441 conditions, 3241 events. 664/3241 cut-off events. For 148077/162671 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 31919 event pairs, 94 based on Foata normal form. 87/3226 useless extension candidates. Maximal degree in co-relation 40365. Up to 1274 conditions per place. [2022-12-06 17:07:20,608 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 288 selfloop transitions, 34 changer transitions 882/1348 dead transitions. [2022-12-06 17:07:20,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 652 places, 1348 transitions, 60870 flow [2022-12-06 17:07:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:20,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2248 transitions. [2022-12-06 17:07:20,610 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.734640522875817 [2022-12-06 17:07:20,611 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 515 predicate places. [2022-12-06 17:07:20,611 INFO L495 AbstractCegarLoop]: Abstraction has has 652 places, 1348 transitions, 60870 flow [2022-12-06 17:07:20,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:20,612 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:20,612 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:20,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-06 17:07:20,612 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:20,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:20,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1800092180, now seen corresponding path program 23 times [2022-12-06 17:07:20,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:20,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151007347] [2022-12-06 17:07:20,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:20,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:20,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:20,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151007347] [2022-12-06 17:07:20,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151007347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:20,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:20,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:20,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333744817] [2022-12-06 17:07:20,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:20,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:20,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:20,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:20,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:20,741 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:20,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 1348 transitions, 60870 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:20,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:20,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:20,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:21,796 INFO L130 PetriNetUnfolder]: 672/3267 cut-off events. [2022-12-06 17:07:21,796 INFO L131 PetriNetUnfolder]: For 159365/175111 co-relation queries the response was YES. [2022-12-06 17:07:21,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50035 conditions, 3267 events. 672/3267 cut-off events. For 159365/175111 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 32154 event pairs, 92 based on Foata normal form. 120/3284 useless extension candidates. Maximal degree in co-relation 37669. Up to 1293 conditions per place. [2022-12-06 17:07:21,815 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 278 selfloop transitions, 37 changer transitions 915/1374 dead transitions. [2022-12-06 17:07:21,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 1374 transitions, 64629 flow [2022-12-06 17:07:21,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 17:07:21,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 17:07:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2141 transitions. [2022-12-06 17:07:21,817 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7364981080151359 [2022-12-06 17:07:21,817 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 533 predicate places. [2022-12-06 17:07:21,817 INFO L495 AbstractCegarLoop]: Abstraction has has 670 places, 1374 transitions, 64629 flow [2022-12-06 17:07:21,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:21,818 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:21,818 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:21,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-06 17:07:21,818 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:21,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:21,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1890175236, now seen corresponding path program 24 times [2022-12-06 17:07:21,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:21,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102991556] [2022-12-06 17:07:21,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:21,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:21,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:21,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102991556] [2022-12-06 17:07:21,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102991556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:21,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:21,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:21,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415941626] [2022-12-06 17:07:21,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:21,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:21,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:21,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:21,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:21,939 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:21,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 670 places, 1374 transitions, 64629 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:21,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:21,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:21,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:23,282 INFO L130 PetriNetUnfolder]: 683/3390 cut-off events. [2022-12-06 17:07:23,282 INFO L131 PetriNetUnfolder]: For 173449/189531 co-relation queries the response was YES. [2022-12-06 17:07:23,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53005 conditions, 3390 events. 683/3390 cut-off events. For 173449/189531 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 33878 event pairs, 87 based on Foata normal form. 119/3403 useless extension candidates. Maximal degree in co-relation 36083. Up to 1312 conditions per place. [2022-12-06 17:07:23,303 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 279 selfloop transitions, 34 changer transitions 948/1407 dead transitions. [2022-12-06 17:07:23,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 691 places, 1407 transitions, 68852 flow [2022-12-06 17:07:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 17:07:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 17:07:23,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2466 transitions. [2022-12-06 17:07:23,306 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.732620320855615 [2022-12-06 17:07:23,306 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 554 predicate places. [2022-12-06 17:07:23,306 INFO L495 AbstractCegarLoop]: Abstraction has has 691 places, 1407 transitions, 68852 flow [2022-12-06 17:07:23,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:23,307 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:23,307 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:23,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-06 17:07:23,307 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:23,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:23,307 INFO L85 PathProgramCache]: Analyzing trace with hash 701430068, now seen corresponding path program 25 times [2022-12-06 17:07:23,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:23,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661335239] [2022-12-06 17:07:23,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:23,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:23,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:23,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:23,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661335239] [2022-12-06 17:07:23,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661335239] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:23,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:23,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:23,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920649769] [2022-12-06 17:07:23,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:23,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:23,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:23,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:23,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:23,438 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:23,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 691 places, 1407 transitions, 68852 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:23,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:23,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:23,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:24,989 INFO L130 PetriNetUnfolder]: 700/3425 cut-off events. [2022-12-06 17:07:24,989 INFO L131 PetriNetUnfolder]: For 195864/215998 co-relation queries the response was YES. [2022-12-06 17:07:24,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55886 conditions, 3425 events. 700/3425 cut-off events. For 195864/215998 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 34263 event pairs, 89 based on Foata normal form. 92/3406 useless extension candidates. Maximal degree in co-relation 38052. Up to 1328 conditions per place. [2022-12-06 17:07:25,011 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 271 selfloop transitions, 19 changer transitions 991/1427 dead transitions. [2022-12-06 17:07:25,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 717 places, 1427 transitions, 72485 flow [2022-12-06 17:07:25,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-06 17:07:25,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-06 17:07:25,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3012 transitions. [2022-12-06 17:07:25,014 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.729121278140886 [2022-12-06 17:07:25,014 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 580 predicate places. [2022-12-06 17:07:25,014 INFO L495 AbstractCegarLoop]: Abstraction has has 717 places, 1427 transitions, 72485 flow [2022-12-06 17:07:25,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:25,015 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:25,015 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:25,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-06 17:07:25,015 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:25,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:25,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1580527632, now seen corresponding path program 26 times [2022-12-06 17:07:25,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:25,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304893681] [2022-12-06 17:07:25,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:25,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:25,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:25,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304893681] [2022-12-06 17:07:25,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304893681] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:25,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:25,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:25,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913978464] [2022-12-06 17:07:25,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:25,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:25,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:25,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:25,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:25,139 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:25,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 717 places, 1427 transitions, 72485 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:25,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:25,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:25,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:26,660 INFO L130 PetriNetUnfolder]: 727/3575 cut-off events. [2022-12-06 17:07:26,661 INFO L131 PetriNetUnfolder]: For 220979/242506 co-relation queries the response was YES. [2022-12-06 17:07:26,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59928 conditions, 3575 events. 727/3575 cut-off events. For 220979/242506 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 36152 event pairs, 92 based on Foata normal form. 52/3520 useless extension candidates. Maximal degree in co-relation 40788. Up to 1367 conditions per place. [2022-12-06 17:07:26,681 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 276 selfloop transitions, 39 changer transitions 1032/1491 dead transitions. [2022-12-06 17:07:26,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 739 places, 1491 transitions, 78743 flow [2022-12-06 17:07:26,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 17:07:26,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 17:07:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2582 transitions. [2022-12-06 17:07:26,683 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7337311736288719 [2022-12-06 17:07:26,684 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 602 predicate places. [2022-12-06 17:07:26,684 INFO L495 AbstractCegarLoop]: Abstraction has has 739 places, 1491 transitions, 78743 flow [2022-12-06 17:07:26,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:26,684 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:26,684 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:26,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-06 17:07:26,684 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:26,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:26,685 INFO L85 PathProgramCache]: Analyzing trace with hash 797189740, now seen corresponding path program 27 times [2022-12-06 17:07:26,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:26,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784787217] [2022-12-06 17:07:26,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:26,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:26,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:26,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:26,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784787217] [2022-12-06 17:07:26,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784787217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:26,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:26,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:26,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469201203] [2022-12-06 17:07:26,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:26,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:26,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:26,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:26,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:26,802 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:26,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 739 places, 1491 transitions, 78743 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:26,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:26,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:26,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:28,358 INFO L130 PetriNetUnfolder]: 728/3611 cut-off events. [2022-12-06 17:07:28,359 INFO L131 PetriNetUnfolder]: For 225322/244677 co-relation queries the response was YES. [2022-12-06 17:07:28,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62824 conditions, 3611 events. 728/3611 cut-off events. For 225322/244677 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 36824 event pairs, 91 based on Foata normal form. 52/3560 useless extension candidates. Maximal degree in co-relation 48042. Up to 1389 conditions per place. [2022-12-06 17:07:28,380 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 270 selfloop transitions, 38 changer transitions 1077/1529 dead transitions. [2022-12-06 17:07:28,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 764 places, 1529 transitions, 83718 flow [2022-12-06 17:07:28,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-06 17:07:28,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-06 17:07:28,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2907 transitions. [2022-12-06 17:07:28,382 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7307692307692307 [2022-12-06 17:07:28,382 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 627 predicate places. [2022-12-06 17:07:28,382 INFO L495 AbstractCegarLoop]: Abstraction has has 764 places, 1529 transitions, 83718 flow [2022-12-06 17:07:28,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:28,382 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:28,383 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:28,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-06 17:07:28,383 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:28,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:28,383 INFO L85 PathProgramCache]: Analyzing trace with hash 957564108, now seen corresponding path program 28 times [2022-12-06 17:07:28,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:28,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584209395] [2022-12-06 17:07:28,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:28,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:28,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:28,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584209395] [2022-12-06 17:07:28,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584209395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:28,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:28,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:28,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95372202] [2022-12-06 17:07:28,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:28,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:28,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:28,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:28,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:28,496 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:28,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 764 places, 1529 transitions, 83718 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:28,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:28,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:28,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:30,120 INFO L130 PetriNetUnfolder]: 742/3707 cut-off events. [2022-12-06 17:07:30,120 INFO L131 PetriNetUnfolder]: For 247483/267631 co-relation queries the response was YES. [2022-12-06 17:07:30,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66252 conditions, 3707 events. 742/3707 cut-off events. For 247483/267631 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 38172 event pairs, 93 based on Foata normal form. 62/3667 useless extension candidates. Maximal degree in co-relation 50857. Up to 1416 conditions per place. [2022-12-06 17:07:30,141 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 270 selfloop transitions, 43 changer transitions 1110/1567 dead transitions. [2022-12-06 17:07:30,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 783 places, 1567 transitions, 88845 flow [2022-12-06 17:07:30,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:30,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:30,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2249 transitions. [2022-12-06 17:07:30,143 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.734967320261438 [2022-12-06 17:07:30,143 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 646 predicate places. [2022-12-06 17:07:30,144 INFO L495 AbstractCegarLoop]: Abstraction has has 783 places, 1567 transitions, 88845 flow [2022-12-06 17:07:30,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:30,144 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:30,144 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:30,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-06 17:07:30,144 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:30,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:30,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1778472062, now seen corresponding path program 29 times [2022-12-06 17:07:30,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:30,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871305003] [2022-12-06 17:07:30,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:30,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:30,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:30,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:30,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871305003] [2022-12-06 17:07:30,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871305003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:30,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:30,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:30,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752855707] [2022-12-06 17:07:30,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:30,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:30,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:30,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:30,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:30,275 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:30,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 783 places, 1567 transitions, 88845 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:30,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:30,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:30,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:32,104 INFO L130 PetriNetUnfolder]: 758/3766 cut-off events. [2022-12-06 17:07:32,104 INFO L131 PetriNetUnfolder]: For 271070/294018 co-relation queries the response was YES. [2022-12-06 17:07:32,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69733 conditions, 3766 events. 758/3766 cut-off events. For 271070/294018 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 38594 event pairs, 95 based on Foata normal form. 40/3696 useless extension candidates. Maximal degree in co-relation 49227. Up to 1430 conditions per place. [2022-12-06 17:07:32,124 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 280 selfloop transitions, 43 changer transitions 1144/1611 dead transitions. [2022-12-06 17:07:32,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 803 places, 1611 transitions, 94462 flow [2022-12-06 17:07:32,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:07:32,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:07:32,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2360 transitions. [2022-12-06 17:07:32,126 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7345160286336757 [2022-12-06 17:07:32,126 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 666 predicate places. [2022-12-06 17:07:32,126 INFO L495 AbstractCegarLoop]: Abstraction has has 803 places, 1611 transitions, 94462 flow [2022-12-06 17:07:32,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:32,126 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:32,127 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:32,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-06 17:07:32,127 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:32,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:32,127 INFO L85 PathProgramCache]: Analyzing trace with hash -989108550, now seen corresponding path program 30 times [2022-12-06 17:07:32,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:32,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464750857] [2022-12-06 17:07:32,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:32,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:32,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:32,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:32,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464750857] [2022-12-06 17:07:32,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464750857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:32,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:32,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:32,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568201512] [2022-12-06 17:07:32,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:32,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:32,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:32,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:32,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:32,247 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:32,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 803 places, 1611 transitions, 94462 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:32,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:32,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:32,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:33,797 INFO L130 PetriNetUnfolder]: 765/3865 cut-off events. [2022-12-06 17:07:33,797 INFO L131 PetriNetUnfolder]: For 278916/300987 co-relation queries the response was YES. [2022-12-06 17:07:33,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73027 conditions, 3865 events. 765/3865 cut-off events. For 278916/300987 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 40309 event pairs, 87 based on Foata normal form. 55/3809 useless extension candidates. Maximal degree in co-relation 49658. Up to 1450 conditions per place. [2022-12-06 17:07:33,819 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 271 selfloop transitions, 43 changer transitions 1177/1637 dead transitions. [2022-12-06 17:07:33,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 822 places, 1637 transitions, 99094 flow [2022-12-06 17:07:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:33,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:33,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2247 transitions. [2022-12-06 17:07:33,821 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.734313725490196 [2022-12-06 17:07:33,821 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 685 predicate places. [2022-12-06 17:07:33,821 INFO L495 AbstractCegarLoop]: Abstraction has has 822 places, 1637 transitions, 99094 flow [2022-12-06 17:07:33,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:33,822 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:33,822 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:33,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-06 17:07:33,822 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:33,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:33,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1705163898, now seen corresponding path program 31 times [2022-12-06 17:07:33,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:33,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679460120] [2022-12-06 17:07:33,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:33,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:33,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:33,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:33,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679460120] [2022-12-06 17:07:33,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679460120] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:33,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:33,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:33,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442192149] [2022-12-06 17:07:33,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:33,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:33,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:33,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:33,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:33,939 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:33,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 822 places, 1637 transitions, 99094 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:33,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:33,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:33,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:35,885 INFO L130 PetriNetUnfolder]: 766/3818 cut-off events. [2022-12-06 17:07:35,885 INFO L131 PetriNetUnfolder]: For 312933/339677 co-relation queries the response was YES. [2022-12-06 17:07:35,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75366 conditions, 3818 events. 766/3818 cut-off events. For 312933/339677 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 39460 event pairs, 94 based on Foata normal form. 84/3792 useless extension candidates. Maximal degree in co-relation 54697. Up to 1456 conditions per place. [2022-12-06 17:07:35,912 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 258 selfloop transitions, 26 changer transitions 1220/1648 dead transitions. [2022-12-06 17:07:35,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 845 places, 1648 transitions, 102839 flow [2022-12-06 17:07:35,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-06 17:07:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-06 17:07:35,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2689 transitions. [2022-12-06 17:07:35,914 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7322984749455338 [2022-12-06 17:07:35,914 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 708 predicate places. [2022-12-06 17:07:35,914 INFO L495 AbstractCegarLoop]: Abstraction has has 845 places, 1648 transitions, 102839 flow [2022-12-06 17:07:35,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:35,915 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:35,915 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:35,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-06 17:07:35,915 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:35,915 INFO L85 PathProgramCache]: Analyzing trace with hash 638403736, now seen corresponding path program 32 times [2022-12-06 17:07:35,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:35,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220854782] [2022-12-06 17:07:35,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:35,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:36,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:36,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:36,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220854782] [2022-12-06 17:07:36,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220854782] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:36,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:36,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:36,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172669463] [2022-12-06 17:07:36,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:36,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:36,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:36,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:36,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:36,045 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:36,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 845 places, 1648 transitions, 102839 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:36,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:36,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:36,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:38,321 INFO L130 PetriNetUnfolder]: 773/3911 cut-off events. [2022-12-06 17:07:38,321 INFO L131 PetriNetUnfolder]: For 323162/349818 co-relation queries the response was YES. [2022-12-06 17:07:38,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78719 conditions, 3911 events. 773/3911 cut-off events. For 323162/349818 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 40952 event pairs, 87 based on Foata normal form. 67/3871 useless extension candidates. Maximal degree in co-relation 53230. Up to 1484 conditions per place. [2022-12-06 17:07:38,342 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 249 selfloop transitions, 23 changer transitions 1253/1671 dead transitions. [2022-12-06 17:07:38,342 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 864 places, 1671 transitions, 107479 flow [2022-12-06 17:07:38,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:38,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:38,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2253 transitions. [2022-12-06 17:07:38,344 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7362745098039216 [2022-12-06 17:07:38,344 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 727 predicate places. [2022-12-06 17:07:38,344 INFO L495 AbstractCegarLoop]: Abstraction has has 864 places, 1671 transitions, 107479 flow [2022-12-06 17:07:38,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:38,344 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:38,344 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:38,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-06 17:07:38,345 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:38,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:38,345 INFO L85 PathProgramCache]: Analyzing trace with hash -291345710, now seen corresponding path program 33 times [2022-12-06 17:07:38,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:38,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246198341] [2022-12-06 17:07:38,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:38,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:38,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:38,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246198341] [2022-12-06 17:07:38,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246198341] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:38,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:38,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:38,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133837669] [2022-12-06 17:07:38,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:38,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:38,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:38,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:38,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:38,460 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:38,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 864 places, 1671 transitions, 107479 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:38,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:38,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:38,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:40,161 INFO L130 PetriNetUnfolder]: 787/4011 cut-off events. [2022-12-06 17:07:40,161 INFO L131 PetriNetUnfolder]: For 351905/378041 co-relation queries the response was YES. [2022-12-06 17:07:40,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82507 conditions, 4011 events. 787/4011 cut-off events. For 351905/378041 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 42304 event pairs, 92 based on Foata normal form. 64/3966 useless extension candidates. Maximal degree in co-relation 55867. Up to 1503 conditions per place. [2022-12-06 17:07:40,182 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 244 selfloop transitions, 34 changer transitions 1287/1711 dead transitions. [2022-12-06 17:07:40,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 885 places, 1711 transitions, 113376 flow [2022-12-06 17:07:40,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 17:07:40,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 17:07:40,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2467 transitions. [2022-12-06 17:07:40,184 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7329174093879977 [2022-12-06 17:07:40,185 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 748 predicate places. [2022-12-06 17:07:40,185 INFO L495 AbstractCegarLoop]: Abstraction has has 885 places, 1711 transitions, 113376 flow [2022-12-06 17:07:40,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:40,185 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:40,185 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:40,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-06 17:07:40,185 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:40,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:40,185 INFO L85 PathProgramCache]: Analyzing trace with hash -626705838, now seen corresponding path program 34 times [2022-12-06 17:07:40,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:40,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283558530] [2022-12-06 17:07:40,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:40,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:40,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:40,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:40,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283558530] [2022-12-06 17:07:40,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283558530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:40,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:40,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:40,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872915155] [2022-12-06 17:07:40,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:40,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:40,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:40,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:40,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:40,299 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:40,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 885 places, 1711 transitions, 113376 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:40,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:40,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:40,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:42,218 INFO L130 PetriNetUnfolder]: 792/4011 cut-off events. [2022-12-06 17:07:42,219 INFO L131 PetriNetUnfolder]: For 379157/408286 co-relation queries the response was YES. [2022-12-06 17:07:42,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85504 conditions, 4011 events. 792/4011 cut-off events. For 379157/408286 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 42215 event pairs, 94 based on Foata normal form. 77/3985 useless extension candidates. Maximal degree in co-relation 66105. Up to 1522 conditions per place. [2022-12-06 17:07:42,239 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 238 selfloop transitions, 25 changer transitions 1323/1730 dead transitions. [2022-12-06 17:07:42,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 903 places, 1730 transitions, 117933 flow [2022-12-06 17:07:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 17:07:42,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 17:07:42,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2142 transitions. [2022-12-06 17:07:42,241 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7368421052631579 [2022-12-06 17:07:42,241 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 766 predicate places. [2022-12-06 17:07:42,241 INFO L495 AbstractCegarLoop]: Abstraction has has 903 places, 1730 transitions, 117933 flow [2022-12-06 17:07:42,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:42,241 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:42,241 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:42,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-06 17:07:42,242 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:42,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:42,242 INFO L85 PathProgramCache]: Analyzing trace with hash 2024969780, now seen corresponding path program 35 times [2022-12-06 17:07:42,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:42,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882903223] [2022-12-06 17:07:42,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:42,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:42,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:42,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:42,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882903223] [2022-12-06 17:07:42,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882903223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:42,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:42,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:42,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426860684] [2022-12-06 17:07:42,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:42,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:42,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:42,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:42,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:42,354 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:42,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 903 places, 1730 transitions, 117933 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:42,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:42,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:42,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:44,204 INFO L130 PetriNetUnfolder]: 792/3946 cut-off events. [2022-12-06 17:07:44,205 INFO L131 PetriNetUnfolder]: For 408097/443215 co-relation queries the response was YES. [2022-12-06 17:07:44,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87161 conditions, 3946 events. 792/3946 cut-off events. For 408097/443215 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 41257 event pairs, 100 based on Foata normal form. 53/3894 useless extension candidates. Maximal degree in co-relation 59070. Up to 1506 conditions per place. [2022-12-06 17:07:44,225 INFO L137 encePairwiseOnDemand]: 138/153 looper letters, 209 selfloop transitions, 2 changer transitions 1368/1719 dead transitions. [2022-12-06 17:07:44,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 928 places, 1719 transitions, 120287 flow [2022-12-06 17:07:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-06 17:07:44,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-06 17:07:44,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2904 transitions. [2022-12-06 17:07:44,227 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7300150829562594 [2022-12-06 17:07:44,227 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 791 predicate places. [2022-12-06 17:07:44,227 INFO L495 AbstractCegarLoop]: Abstraction has has 928 places, 1719 transitions, 120287 flow [2022-12-06 17:07:44,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:44,228 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:44,228 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:44,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-06 17:07:44,228 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:44,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:44,228 INFO L85 PathProgramCache]: Analyzing trace with hash 685994004, now seen corresponding path program 1 times [2022-12-06 17:07:44,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:44,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419952906] [2022-12-06 17:07:44,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:44,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:44,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:44,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:44,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419952906] [2022-12-06 17:07:44,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419952906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:44,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:44,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:44,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185838725] [2022-12-06 17:07:44,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:44,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:44,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:44,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:44,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:44,326 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:44,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 928 places, 1719 transitions, 120287 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:44,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:44,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:44,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:46,882 INFO L130 PetriNetUnfolder]: 970/4445 cut-off events. [2022-12-06 17:07:46,882 INFO L131 PetriNetUnfolder]: For 478002/500459 co-relation queries the response was YES. [2022-12-06 17:07:46,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98659 conditions, 4445 events. 970/4445 cut-off events. For 478002/500459 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 46591 event pairs, 162 based on Foata normal form. 16/4351 useless extension candidates. Maximal degree in co-relation 69052. Up to 2257 conditions per place. [2022-12-06 17:07:46,911 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 249 selfloop transitions, 10 changer transitions 1419/1831 dead transitions. [2022-12-06 17:07:46,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 1831 transitions, 131376 flow [2022-12-06 17:07:46,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-06 17:07:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-12-06 17:07:46,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3574 transitions. [2022-12-06 17:07:46,913 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7299836601307189 [2022-12-06 17:07:46,914 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 822 predicate places. [2022-12-06 17:07:46,914 INFO L495 AbstractCegarLoop]: Abstraction has has 959 places, 1831 transitions, 131376 flow [2022-12-06 17:07:46,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:46,914 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:46,914 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:46,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-06 17:07:46,914 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:46,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:46,915 INFO L85 PathProgramCache]: Analyzing trace with hash 352151652, now seen corresponding path program 2 times [2022-12-06 17:07:46,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:46,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816784953] [2022-12-06 17:07:46,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:46,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:47,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:47,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:47,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816784953] [2022-12-06 17:07:47,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816784953] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:47,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:47,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:47,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438305715] [2022-12-06 17:07:47,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:47,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:47,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:47,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:47,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:47,024 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:47,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 959 places, 1831 transitions, 131376 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:47,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:47,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:47,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:49,505 INFO L130 PetriNetUnfolder]: 1007/4549 cut-off events. [2022-12-06 17:07:49,505 INFO L131 PetriNetUnfolder]: For 512354/539693 co-relation queries the response was YES. [2022-12-06 17:07:49,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104395 conditions, 4549 events. 1007/4549 cut-off events. For 512354/539693 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 47944 event pairs, 166 based on Foata normal form. 7/4449 useless extension candidates. Maximal degree in co-relation 73115. Up to 2341 conditions per place. [2022-12-06 17:07:49,614 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 261 selfloop transitions, 43 changer transitions 1457/1914 dead transitions. [2022-12-06 17:07:49,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 978 places, 1914 transitions, 140484 flow [2022-12-06 17:07:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:07:49,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:07:49,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2247 transitions. [2022-12-06 17:07:49,616 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.734313725490196 [2022-12-06 17:07:49,617 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 841 predicate places. [2022-12-06 17:07:49,617 INFO L495 AbstractCegarLoop]: Abstraction has has 978 places, 1914 transitions, 140484 flow [2022-12-06 17:07:49,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:49,617 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:49,618 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:49,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-06 17:07:49,618 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:49,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:49,618 INFO L85 PathProgramCache]: Analyzing trace with hash -315149008, now seen corresponding path program 3 times [2022-12-06 17:07:49,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:49,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508088368] [2022-12-06 17:07:49,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:49,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:49,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:49,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508088368] [2022-12-06 17:07:49,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508088368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:49,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:49,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:49,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805708480] [2022-12-06 17:07:49,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:49,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:49,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:49,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:49,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:49,763 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:49,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 978 places, 1914 transitions, 140484 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:49,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:49,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:49,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:52,380 INFO L130 PetriNetUnfolder]: 1014/4598 cut-off events. [2022-12-06 17:07:52,380 INFO L131 PetriNetUnfolder]: For 518598/545441 co-relation queries the response was YES. [2022-12-06 17:07:52,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108741 conditions, 4598 events. 1014/4598 cut-off events. For 518598/545441 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 48763 event pairs, 165 based on Foata normal form. 23/4517 useless extension candidates. Maximal degree in co-relation 76215. Up to 2362 conditions per place. [2022-12-06 17:07:52,410 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 275 selfloop transitions, 41 changer transitions 1493/1962 dead transitions. [2022-12-06 17:07:52,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 996 places, 1962 transitions, 147404 flow [2022-12-06 17:07:52,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 17:07:52,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 17:07:52,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2134 transitions. [2022-12-06 17:07:52,411 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7340901272789818 [2022-12-06 17:07:52,411 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 859 predicate places. [2022-12-06 17:07:52,412 INFO L495 AbstractCegarLoop]: Abstraction has has 996 places, 1962 transitions, 147404 flow [2022-12-06 17:07:52,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:52,412 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:52,412 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:52,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-06 17:07:52,412 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:52,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:52,413 INFO L85 PathProgramCache]: Analyzing trace with hash -276612912, now seen corresponding path program 4 times [2022-12-06 17:07:52,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:52,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082670329] [2022-12-06 17:07:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:52,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:52,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:52,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082670329] [2022-12-06 17:07:52,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082670329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:52,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:52,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:52,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017779863] [2022-12-06 17:07:52,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:52,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:52,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:52,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:52,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:52,519 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:52,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 996 places, 1962 transitions, 147404 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:52,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:52,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:52,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:55,783 INFO L130 PetriNetUnfolder]: 1040/4770 cut-off events. [2022-12-06 17:07:55,783 INFO L131 PetriNetUnfolder]: For 571122/594504 co-relation queries the response was YES. [2022-12-06 17:07:55,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114123 conditions, 4770 events. 1040/4770 cut-off events. For 571122/594504 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 51038 event pairs, 147 based on Foata normal form. 23/4688 useless extension candidates. Maximal degree in co-relation 98364. Up to 2410 conditions per place. [2022-12-06 17:07:55,812 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 285 selfloop transitions, 44 changer transitions 1538/2020 dead transitions. [2022-12-06 17:07:55,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 2020 transitions, 155187 flow [2022-12-06 17:07:55,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 17:07:55,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 17:07:55,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3230 transitions. [2022-12-06 17:07:55,814 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7279693486590039 [2022-12-06 17:07:55,815 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 887 predicate places. [2022-12-06 17:07:55,815 INFO L495 AbstractCegarLoop]: Abstraction has has 1024 places, 2020 transitions, 155187 flow [2022-12-06 17:07:55,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:55,815 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:55,815 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:55,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-06 17:07:55,815 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:55,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:55,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1989233944, now seen corresponding path program 5 times [2022-12-06 17:07:55,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:55,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109335334] [2022-12-06 17:07:55,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:55,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:55,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:55,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:55,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109335334] [2022-12-06 17:07:55,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109335334] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:55,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:55,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:55,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456309388] [2022-12-06 17:07:55,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:55,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:55,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:55,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:55,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:55,921 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:55,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 2020 transitions, 155187 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:55,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:55,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:55,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:07:59,053 INFO L130 PetriNetUnfolder]: 1041/4786 cut-off events. [2022-12-06 17:07:59,053 INFO L131 PetriNetUnfolder]: For 585537/612945 co-relation queries the response was YES. [2022-12-06 17:07:59,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117579 conditions, 4786 events. 1041/4786 cut-off events. For 585537/612945 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 51416 event pairs, 158 based on Foata normal form. 35/4713 useless extension candidates. Maximal degree in co-relation 81852. Up to 2415 conditions per place. [2022-12-06 17:07:59,082 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 267 selfloop transitions, 28 changer transitions 1587/2037 dead transitions. [2022-12-06 17:07:59,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1046 places, 2037 transitions, 159889 flow [2022-12-06 17:07:59,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 17:07:59,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 17:07:59,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2571 transitions. [2022-12-06 17:07:59,084 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7306052855924978 [2022-12-06 17:07:59,084 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 909 predicate places. [2022-12-06 17:07:59,084 INFO L495 AbstractCegarLoop]: Abstraction has has 1046 places, 2037 transitions, 159889 flow [2022-12-06 17:07:59,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:59,084 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:07:59,084 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:07:59,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-06 17:07:59,085 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:07:59,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:07:59,085 INFO L85 PathProgramCache]: Analyzing trace with hash -476801470, now seen corresponding path program 6 times [2022-12-06 17:07:59,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:07:59,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52051241] [2022-12-06 17:07:59,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:07:59,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:07:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:07:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:07:59,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:07:59,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52051241] [2022-12-06 17:07:59,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52051241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:07:59,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:07:59,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:07:59,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824210264] [2022-12-06 17:07:59,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:07:59,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:07:59,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:07:59,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:07:59,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:07:59,190 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:07:59,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1046 places, 2037 transitions, 159889 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:07:59,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:07:59,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:07:59,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:02,675 INFO L130 PetriNetUnfolder]: 1061/4867 cut-off events. [2022-12-06 17:08:02,676 INFO L131 PetriNetUnfolder]: For 620497/647511 co-relation queries the response was YES. [2022-12-06 17:08:02,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122631 conditions, 4867 events. 1061/4867 cut-off events. For 620497/647511 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 52397 event pairs, 169 based on Foata normal form. 14/4773 useless extension candidates. Maximal degree in co-relation 87542. Up to 2439 conditions per place. [2022-12-06 17:08:02,707 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 258 selfloop transitions, 45 changer transitions 1641/2097 dead transitions. [2022-12-06 17:08:02,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1076 places, 2097 transitions, 167847 flow [2022-12-06 17:08:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-06 17:08:02,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-06 17:08:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3461 transitions. [2022-12-06 17:08:02,728 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7297069365380561 [2022-12-06 17:08:02,728 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 939 predicate places. [2022-12-06 17:08:02,729 INFO L495 AbstractCegarLoop]: Abstraction has has 1076 places, 2097 transitions, 167847 flow [2022-12-06 17:08:02,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:02,729 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:02,729 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:02,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-06 17:08:02,729 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:02,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:02,730 INFO L85 PathProgramCache]: Analyzing trace with hash -214092246, now seen corresponding path program 7 times [2022-12-06 17:08:02,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:02,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167305214] [2022-12-06 17:08:02,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:02,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:02,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:02,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:02,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167305214] [2022-12-06 17:08:02,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167305214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:02,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:02,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:02,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455330409] [2022-12-06 17:08:02,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:02,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:02,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:02,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:02,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:02,905 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:02,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1076 places, 2097 transitions, 167847 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:02,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:02,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:02,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:06,546 INFO L130 PetriNetUnfolder]: 1096/4945 cut-off events. [2022-12-06 17:08:06,546 INFO L131 PetriNetUnfolder]: For 628540/656964 co-relation queries the response was YES. [2022-12-06 17:08:06,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129466 conditions, 4945 events. 1096/4945 cut-off events. For 628540/656964 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 53188 event pairs, 167 based on Foata normal form. 21/4859 useless extension candidates. Maximal degree in co-relation 102604. Up to 2474 conditions per place. [2022-12-06 17:08:06,578 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 303 selfloop transitions, 54 changer transitions 1667/2177 dead transitions. [2022-12-06 17:08:06,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1096 places, 2177 transitions, 178317 flow [2022-12-06 17:08:06,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:08:06,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:08:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2354 transitions. [2022-12-06 17:08:06,580 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7326486150015562 [2022-12-06 17:08:06,580 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 959 predicate places. [2022-12-06 17:08:06,580 INFO L495 AbstractCegarLoop]: Abstraction has has 1096 places, 2177 transitions, 178317 flow [2022-12-06 17:08:06,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:06,580 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:06,581 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:06,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-06 17:08:06,581 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:06,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:06,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1976562064, now seen corresponding path program 8 times [2022-12-06 17:08:06,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:06,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485613324] [2022-12-06 17:08:06,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:06,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:06,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:06,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:06,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485613324] [2022-12-06 17:08:06,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485613324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:06,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:06,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:06,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059100664] [2022-12-06 17:08:06,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:06,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:06,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:06,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:06,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:06,706 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:06,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1096 places, 2177 transitions, 178317 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:06,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:06,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:06,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:10,660 INFO L130 PetriNetUnfolder]: 1130/5117 cut-off events. [2022-12-06 17:08:10,660 INFO L131 PetriNetUnfolder]: For 703860/736677 co-relation queries the response was YES. [2022-12-06 17:08:10,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135279 conditions, 5117 events. 1130/5117 cut-off events. For 703860/736677 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 55376 event pairs, 181 based on Foata normal form. 26/5021 useless extension candidates. Maximal degree in co-relation 94313. Up to 2500 conditions per place. [2022-12-06 17:08:10,693 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 301 selfloop transitions, 53 changer transitions 1724/2231 dead transitions. [2022-12-06 17:08:10,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1123 places, 2231 transitions, 186496 flow [2022-12-06 17:08:10,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-06 17:08:10,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-06 17:08:10,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3124 transitions. [2022-12-06 17:08:10,696 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7292250233426704 [2022-12-06 17:08:10,696 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 986 predicate places. [2022-12-06 17:08:10,696 INFO L495 AbstractCegarLoop]: Abstraction has has 1123 places, 2231 transitions, 186496 flow [2022-12-06 17:08:10,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:10,697 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:10,697 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:10,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-06 17:08:10,697 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:10,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:10,697 INFO L85 PathProgramCache]: Analyzing trace with hash 669162262, now seen corresponding path program 9 times [2022-12-06 17:08:10,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:10,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416665565] [2022-12-06 17:08:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:10,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:10,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:10,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:10,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416665565] [2022-12-06 17:08:10,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416665565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:10,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:10,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:10,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954406875] [2022-12-06 17:08:10,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:10,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:10,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:10,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:10,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:10,814 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:10,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1123 places, 2231 transitions, 186496 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:10,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:10,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:10,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:14,959 INFO L130 PetriNetUnfolder]: 1134/5163 cut-off events. [2022-12-06 17:08:14,959 INFO L131 PetriNetUnfolder]: For 711051/741807 co-relation queries the response was YES. [2022-12-06 17:08:14,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140254 conditions, 5163 events. 1134/5163 cut-off events. For 711051/741807 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 56349 event pairs, 184 based on Foata normal form. 24/5074 useless extension candidates. Maximal degree in co-relation 97821. Up to 2524 conditions per place. [2022-12-06 17:08:14,994 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 303 selfloop transitions, 45 changer transitions 1763/2266 dead transitions. [2022-12-06 17:08:14,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1145 places, 2266 transitions, 193430 flow [2022-12-06 17:08:14,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 17:08:14,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 17:08:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2573 transitions. [2022-12-06 17:08:14,996 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7311736288718386 [2022-12-06 17:08:14,996 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1008 predicate places. [2022-12-06 17:08:14,996 INFO L495 AbstractCegarLoop]: Abstraction has has 1145 places, 2266 transitions, 193430 flow [2022-12-06 17:08:14,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:14,996 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:14,997 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:14,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-06 17:08:14,997 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:14,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:14,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1445212124, now seen corresponding path program 10 times [2022-12-06 17:08:14,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:14,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021433777] [2022-12-06 17:08:14,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:14,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:15,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:15,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021433777] [2022-12-06 17:08:15,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021433777] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:15,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:15,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:15,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255640204] [2022-12-06 17:08:15,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:15,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:15,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:15,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:15,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:15,107 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:15,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1145 places, 2266 transitions, 193430 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:15,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:15,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:15,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:19,750 INFO L130 PetriNetUnfolder]: 1162/5376 cut-off events. [2022-12-06 17:08:19,751 INFO L131 PetriNetUnfolder]: For 812692/846098 co-relation queries the response was YES. [2022-12-06 17:08:19,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145999 conditions, 5376 events. 1162/5376 cut-off events. For 812692/846098 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 59148 event pairs, 182 based on Foata normal form. 20/5268 useless extension candidates. Maximal degree in co-relation 101521. Up to 2552 conditions per place. [2022-12-06 17:08:19,784 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 308 selfloop transitions, 53 changer transitions 1793/2308 dead transitions. [2022-12-06 17:08:19,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1167 places, 2308 transitions, 201048 flow [2022-12-06 17:08:19,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 17:08:19,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 17:08:19,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2576 transitions. [2022-12-06 17:08:19,786 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7320261437908496 [2022-12-06 17:08:19,786 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1030 predicate places. [2022-12-06 17:08:19,786 INFO L495 AbstractCegarLoop]: Abstraction has has 1167 places, 2308 transitions, 201048 flow [2022-12-06 17:08:19,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:19,786 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:19,786 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:19,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-06 17:08:19,787 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:19,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:19,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1883878258, now seen corresponding path program 11 times [2022-12-06 17:08:19,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:19,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506906732] [2022-12-06 17:08:19,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:19,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:19,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:19,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506906732] [2022-12-06 17:08:19,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506906732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:19,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:19,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:19,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489533336] [2022-12-06 17:08:19,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:19,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:19,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:19,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:19,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:19,956 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:19,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1167 places, 2308 transitions, 201048 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:19,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:19,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:19,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:24,404 INFO L130 PetriNetUnfolder]: 1154/5332 cut-off events. [2022-12-06 17:08:24,404 INFO L131 PetriNetUnfolder]: For 820246/851510 co-relation queries the response was YES. [2022-12-06 17:08:24,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149171 conditions, 5332 events. 1154/5332 cut-off events. For 820246/851510 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 58692 event pairs, 182 based on Foata normal form. 20/5231 useless extension candidates. Maximal degree in co-relation 103274. Up to 2565 conditions per place. [2022-12-06 17:08:24,437 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 295 selfloop transitions, 37 changer transitions 1844/2327 dead transitions. [2022-12-06 17:08:24,438 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1186 places, 2327 transitions, 206805 flow [2022-12-06 17:08:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:08:24,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:08:24,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2247 transitions. [2022-12-06 17:08:24,439 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.734313725490196 [2022-12-06 17:08:24,439 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1049 predicate places. [2022-12-06 17:08:24,439 INFO L495 AbstractCegarLoop]: Abstraction has has 1186 places, 2327 transitions, 206805 flow [2022-12-06 17:08:24,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:24,440 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:24,440 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:24,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-06 17:08:24,440 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:24,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:24,440 INFO L85 PathProgramCache]: Analyzing trace with hash 906969768, now seen corresponding path program 12 times [2022-12-06 17:08:24,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:24,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223961638] [2022-12-06 17:08:24,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:24,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:24,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:24,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223961638] [2022-12-06 17:08:24,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223961638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:24,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:24,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:24,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229876500] [2022-12-06 17:08:24,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:24,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:24,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:24,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:24,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:24,563 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:24,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1186 places, 2327 transitions, 206805 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:24,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:24,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:24,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:29,045 INFO L130 PetriNetUnfolder]: 1153/5347 cut-off events. [2022-12-06 17:08:29,046 INFO L131 PetriNetUnfolder]: For 834182/867002 co-relation queries the response was YES. [2022-12-06 17:08:29,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153211 conditions, 5347 events. 1153/5347 cut-off events. For 834182/867002 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 59040 event pairs, 188 based on Foata normal form. 20/5249 useless extension candidates. Maximal degree in co-relation 105850. Up to 2587 conditions per place. [2022-12-06 17:08:29,078 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 278 selfloop transitions, 22 changer transitions 1884/2339 dead transitions. [2022-12-06 17:08:29,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1207 places, 2339 transitions, 212019 flow [2022-12-06 17:08:29,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 17:08:29,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 17:08:29,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2465 transitions. [2022-12-06 17:08:29,080 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7323232323232324 [2022-12-06 17:08:29,080 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1070 predicate places. [2022-12-06 17:08:29,080 INFO L495 AbstractCegarLoop]: Abstraction has has 1207 places, 2339 transitions, 212019 flow [2022-12-06 17:08:29,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:29,080 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:29,080 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:29,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-06 17:08:29,080 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:29,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:29,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1845962352, now seen corresponding path program 13 times [2022-12-06 17:08:29,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:29,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402648689] [2022-12-06 17:08:29,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:29,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:29,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:29,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:29,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402648689] [2022-12-06 17:08:29,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402648689] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:29,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:29,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:29,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976481422] [2022-12-06 17:08:29,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:29,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:29,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:29,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:29,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:29,192 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:29,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1207 places, 2339 transitions, 212019 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:29,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:29,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:29,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:34,231 INFO L130 PetriNetUnfolder]: 1195/5511 cut-off events. [2022-12-06 17:08:34,231 INFO L131 PetriNetUnfolder]: For 883737/915773 co-relation queries the response was YES. [2022-12-06 17:08:34,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161478 conditions, 5511 events. 1195/5511 cut-off events. For 883737/915773 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 61164 event pairs, 180 based on Foata normal form. 20/5414 useless extension candidates. Maximal degree in co-relation 128112. Up to 2634 conditions per place. [2022-12-06 17:08:34,267 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 321 selfloop transitions, 38 changer transitions 1921/2433 dead transitions. [2022-12-06 17:08:34,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1233 places, 2433 transitions, 225036 flow [2022-12-06 17:08:34,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-06 17:08:34,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-06 17:08:34,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3018 transitions. [2022-12-06 17:08:34,269 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7305737109658679 [2022-12-06 17:08:34,269 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1096 predicate places. [2022-12-06 17:08:34,269 INFO L495 AbstractCegarLoop]: Abstraction has has 1233 places, 2433 transitions, 225036 flow [2022-12-06 17:08:34,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:34,270 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:34,270 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:34,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-06 17:08:34,270 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:34,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:34,270 INFO L85 PathProgramCache]: Analyzing trace with hash 732615046, now seen corresponding path program 14 times [2022-12-06 17:08:34,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:34,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216077335] [2022-12-06 17:08:34,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:34,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:34,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:34,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:34,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216077335] [2022-12-06 17:08:34,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216077335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:34,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:34,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:34,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651366024] [2022-12-06 17:08:34,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:34,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:34,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:34,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:34,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:34,381 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:34,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1233 places, 2433 transitions, 225036 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:34,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:34,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:34,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:40,163 INFO L130 PetriNetUnfolder]: 1213/5572 cut-off events. [2022-12-06 17:08:40,163 INFO L131 PetriNetUnfolder]: For 930093/966313 co-relation queries the response was YES. [2022-12-06 17:08:40,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167224 conditions, 5572 events. 1213/5572 cut-off events. For 930093/966313 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 61672 event pairs, 200 based on Foata normal form. 20/5470 useless extension candidates. Maximal degree in co-relation 115798. Up to 2644 conditions per place. [2022-12-06 17:08:40,201 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 325 selfloop transitions, 42 changer transitions 1957/2477 dead transitions. [2022-12-06 17:08:40,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1252 places, 2477 transitions, 233642 flow [2022-12-06 17:08:40,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:08:40,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:08:40,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2250 transitions. [2022-12-06 17:08:40,203 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7352941176470589 [2022-12-06 17:08:40,203 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1115 predicate places. [2022-12-06 17:08:40,203 INFO L495 AbstractCegarLoop]: Abstraction has has 1252 places, 2477 transitions, 233642 flow [2022-12-06 17:08:40,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:40,203 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:40,203 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:40,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-06 17:08:40,204 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:40,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1676852312, now seen corresponding path program 15 times [2022-12-06 17:08:40,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:40,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695440671] [2022-12-06 17:08:40,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:40,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:40,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:40,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:40,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695440671] [2022-12-06 17:08:40,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695440671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:40,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:40,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:40,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577684418] [2022-12-06 17:08:40,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:40,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:40,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:40,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:40,320 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:40,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1252 places, 2477 transitions, 233642 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:40,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:40,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:40,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:46,168 INFO L130 PetriNetUnfolder]: 1238/5698 cut-off events. [2022-12-06 17:08:46,168 INFO L131 PetriNetUnfolder]: For 987509/1022126 co-relation queries the response was YES. [2022-12-06 17:08:46,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173905 conditions, 5698 events. 1238/5698 cut-off events. For 987509/1022126 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 63638 event pairs, 182 based on Foata normal form. 18/5596 useless extension candidates. Maximal degree in co-relation 120655. Up to 2672 conditions per place. [2022-12-06 17:08:46,207 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 327 selfloop transitions, 48 changer transitions 2003/2533 dead transitions. [2022-12-06 17:08:46,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1272 places, 2533 transitions, 243668 flow [2022-12-06 17:08:46,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:08:46,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:08:46,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2357 transitions. [2022-12-06 17:08:46,209 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.733582321817616 [2022-12-06 17:08:46,209 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1135 predicate places. [2022-12-06 17:08:46,209 INFO L495 AbstractCegarLoop]: Abstraction has has 1272 places, 2533 transitions, 243668 flow [2022-12-06 17:08:46,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:46,210 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:46,210 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:46,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-06 17:08:46,210 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:46,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:46,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1358312380, now seen corresponding path program 16 times [2022-12-06 17:08:46,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:46,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777590316] [2022-12-06 17:08:46,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:46,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:46,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:46,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777590316] [2022-12-06 17:08:46,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777590316] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:46,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:46,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:46,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943137767] [2022-12-06 17:08:46,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:46,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:46,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:46,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:46,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:46,453 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:46,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1272 places, 2533 transitions, 243668 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:46,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:46,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:46,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:52,804 INFO L130 PetriNetUnfolder]: 1259/5809 cut-off events. [2022-12-06 17:08:52,804 INFO L131 PetriNetUnfolder]: For 1028267/1066635 co-relation queries the response was YES. [2022-12-06 17:08:52,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180905 conditions, 5809 events. 1259/5809 cut-off events. For 1028267/1066635 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 65375 event pairs, 190 based on Foata normal form. 22/5710 useless extension candidates. Maximal degree in co-relation 125809. Up to 2710 conditions per place. [2022-12-06 17:08:52,844 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 342 selfloop transitions, 45 changer transitions 2039/2579 dead transitions. [2022-12-06 17:08:52,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1298 places, 2579 transitions, 252786 flow [2022-12-06 17:08:52,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-06 17:08:52,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-06 17:08:52,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3012 transitions. [2022-12-06 17:08:52,846 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.729121278140886 [2022-12-06 17:08:52,846 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1161 predicate places. [2022-12-06 17:08:52,846 INFO L495 AbstractCegarLoop]: Abstraction has has 1298 places, 2579 transitions, 252786 flow [2022-12-06 17:08:52,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:52,846 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:52,846 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:52,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-12-06 17:08:52,847 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:52,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:52,847 INFO L85 PathProgramCache]: Analyzing trace with hash -2105155400, now seen corresponding path program 17 times [2022-12-06 17:08:52,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:52,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361683421] [2022-12-06 17:08:52,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:52,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:53,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:53,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361683421] [2022-12-06 17:08:53,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361683421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:53,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:53,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:53,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945691302] [2022-12-06 17:08:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:53,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:53,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:53,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:53,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:53,091 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:53,091 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1298 places, 2579 transitions, 252786 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:53,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:53,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:53,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:08:59,323 INFO L130 PetriNetUnfolder]: 1279/5910 cut-off events. [2022-12-06 17:08:59,323 INFO L131 PetriNetUnfolder]: For 1098207/1138000 co-relation queries the response was YES. [2022-12-06 17:08:59,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186578 conditions, 5910 events. 1279/5910 cut-off events. For 1098207/1138000 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 66740 event pairs, 191 based on Foata normal form. 28/5811 useless extension candidates. Maximal degree in co-relation 129319. Up to 2734 conditions per place. [2022-12-06 17:08:59,363 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 337 selfloop transitions, 40 changer transitions 2078/2610 dead transitions. [2022-12-06 17:08:59,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1320 places, 2610 transitions, 260491 flow [2022-12-06 17:08:59,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 17:08:59,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 17:08:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2579 transitions. [2022-12-06 17:08:59,365 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7328786587098608 [2022-12-06 17:08:59,365 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1183 predicate places. [2022-12-06 17:08:59,365 INFO L495 AbstractCegarLoop]: Abstraction has has 1320 places, 2610 transitions, 260491 flow [2022-12-06 17:08:59,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:59,365 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:08:59,365 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:08:59,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-12-06 17:08:59,366 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:08:59,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:08:59,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1874365450, now seen corresponding path program 18 times [2022-12-06 17:08:59,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:08:59,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523196130] [2022-12-06 17:08:59,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:08:59,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:08:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:08:59,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:08:59,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:08:59,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523196130] [2022-12-06 17:08:59,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523196130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:08:59,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:08:59,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:08:59,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083773967] [2022-12-06 17:08:59,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:08:59,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:08:59,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:08:59,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:08:59,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:08:59,469 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:08:59,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1320 places, 2610 transitions, 260491 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:08:59,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:08:59,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:08:59,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:06,470 INFO L130 PetriNetUnfolder]: 1280/5995 cut-off events. [2022-12-06 17:09:06,470 INFO L131 PetriNetUnfolder]: For 1127451/1163419 co-relation queries the response was YES. [2022-12-06 17:09:06,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191555 conditions, 5995 events. 1280/5995 cut-off events. For 1127451/1163419 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 67966 event pairs, 197 based on Foata normal form. 21/5883 useless extension candidates. Maximal degree in co-relation 132315. Up to 2754 conditions per place. [2022-12-06 17:09:06,515 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 331 selfloop transitions, 39 changer transitions 2116/2643 dead transitions. [2022-12-06 17:09:06,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1340 places, 2643 transitions, 268485 flow [2022-12-06 17:09:06,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:09:06,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:09:06,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2359 transitions. [2022-12-06 17:09:06,516 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7342047930283224 [2022-12-06 17:09:06,517 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1203 predicate places. [2022-12-06 17:09:06,517 INFO L495 AbstractCegarLoop]: Abstraction has has 1340 places, 2643 transitions, 268485 flow [2022-12-06 17:09:06,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:06,517 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:06,517 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:09:06,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-12-06 17:09:06,517 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:09:06,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:06,517 INFO L85 PathProgramCache]: Analyzing trace with hash 421240632, now seen corresponding path program 19 times [2022-12-06 17:09:06,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:06,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101416048] [2022-12-06 17:09:06,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:06,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:06,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:06,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101416048] [2022-12-06 17:09:06,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101416048] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:06,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:06,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:09:06,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515139546] [2022-12-06 17:09:06,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:06,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:09:06,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:06,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:09:06,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:09:06,622 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:09:06,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1340 places, 2643 transitions, 268485 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:06,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:06,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:09:06,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:14,037 INFO L130 PetriNetUnfolder]: 1290/5973 cut-off events. [2022-12-06 17:09:14,038 INFO L131 PetriNetUnfolder]: For 1161720/1201028 co-relation queries the response was YES. [2022-12-06 17:09:14,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196993 conditions, 5973 events. 1290/5973 cut-off events. For 1161720/1201028 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 67715 event pairs, 198 based on Foata normal form. 20/5869 useless extension candidates. Maximal degree in co-relation 158573. Up to 2782 conditions per place. [2022-12-06 17:09:14,079 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 329 selfloop transitions, 26 changer transitions 2163/2671 dead transitions. [2022-12-06 17:09:14,079 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1364 places, 2671 transitions, 276218 flow [2022-12-06 17:09:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-06 17:09:14,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-06 17:09:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2795 transitions. [2022-12-06 17:09:14,081 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.730718954248366 [2022-12-06 17:09:14,081 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1227 predicate places. [2022-12-06 17:09:14,081 INFO L495 AbstractCegarLoop]: Abstraction has has 1364 places, 2671 transitions, 276218 flow [2022-12-06 17:09:14,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:14,082 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:14,082 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:09:14,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-12-06 17:09:14,082 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:09:14,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:14,082 INFO L85 PathProgramCache]: Analyzing trace with hash 612894420, now seen corresponding path program 20 times [2022-12-06 17:09:14,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:14,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288045538] [2022-12-06 17:09:14,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:14,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:14,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:14,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:14,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288045538] [2022-12-06 17:09:14,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288045538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:14,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:14,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:09:14,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719457857] [2022-12-06 17:09:14,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:14,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:09:14,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:14,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:09:14,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:09:14,188 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:09:14,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1364 places, 2671 transitions, 276218 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:14,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:14,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:09:14,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:22,748 INFO L130 PetriNetUnfolder]: 1300/6152 cut-off events. [2022-12-06 17:09:22,748 INFO L131 PetriNetUnfolder]: For 1230796/1266626 co-relation queries the response was YES. [2022-12-06 17:09:22,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202552 conditions, 6152 events. 1300/6152 cut-off events. For 1230796/1266626 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 70483 event pairs, 190 based on Foata normal form. 20/6045 useless extension candidates. Maximal degree in co-relation 160645. Up to 2806 conditions per place. [2022-12-06 17:09:22,791 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 313 selfloop transitions, 33 changer transitions 2200/2701 dead transitions. [2022-12-06 17:09:22,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1385 places, 2701 transitions, 284236 flow [2022-12-06 17:09:22,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 17:09:22,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 17:09:22,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2472 transitions. [2022-12-06 17:09:22,793 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7344028520499108 [2022-12-06 17:09:22,793 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1248 predicate places. [2022-12-06 17:09:22,793 INFO L495 AbstractCegarLoop]: Abstraction has has 1385 places, 2701 transitions, 284236 flow [2022-12-06 17:09:22,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:22,794 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:22,794 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:09:22,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-12-06 17:09:22,794 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:09:22,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:22,794 INFO L85 PathProgramCache]: Analyzing trace with hash -778217252, now seen corresponding path program 21 times [2022-12-06 17:09:22,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:22,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782899764] [2022-12-06 17:09:22,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:22,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:22,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:22,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:22,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782899764] [2022-12-06 17:09:22,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782899764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:22,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:22,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:09:22,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525372354] [2022-12-06 17:09:22,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:22,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:09:22,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:22,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:09:22,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:09:22,905 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:09:22,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1385 places, 2701 transitions, 284236 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:22,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:22,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:09:22,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:31,636 INFO L130 PetriNetUnfolder]: 1313/6175 cut-off events. [2022-12-06 17:09:31,636 INFO L131 PetriNetUnfolder]: For 1292480/1331377 co-relation queries the response was YES. [2022-12-06 17:09:31,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208430 conditions, 6175 events. 1313/6175 cut-off events. For 1292480/1331377 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 70630 event pairs, 197 based on Foata normal form. 21/6069 useless extension candidates. Maximal degree in co-relation 167506. Up to 2833 conditions per place. [2022-12-06 17:09:31,680 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 313 selfloop transitions, 27 changer transitions 2243/2736 dead transitions. [2022-12-06 17:09:31,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1408 places, 2736 transitions, 292952 flow [2022-12-06 17:09:31,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-06 17:09:31,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-06 17:09:31,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2688 transitions. [2022-12-06 17:09:31,682 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7320261437908496 [2022-12-06 17:09:31,682 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1271 predicate places. [2022-12-06 17:09:31,682 INFO L495 AbstractCegarLoop]: Abstraction has has 1408 places, 2736 transitions, 292952 flow [2022-12-06 17:09:31,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:31,682 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:31,682 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:09:31,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-12-06 17:09:31,683 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:09:31,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:31,683 INFO L85 PathProgramCache]: Analyzing trace with hash 212570518, now seen corresponding path program 22 times [2022-12-06 17:09:31,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:31,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345018352] [2022-12-06 17:09:31,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:31,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:31,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:31,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:31,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345018352] [2022-12-06 17:09:31,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345018352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:31,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:31,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:09:31,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976066402] [2022-12-06 17:09:31,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:31,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:09:31,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:31,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:09:31,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:09:31,797 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:09:31,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1408 places, 2736 transitions, 292952 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:31,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:31,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:09:31,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:40,328 INFO L130 PetriNetUnfolder]: 1312/6194 cut-off events. [2022-12-06 17:09:40,328 INFO L131 PetriNetUnfolder]: For 1336806/1381051 co-relation queries the response was YES. [2022-12-06 17:09:40,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212690 conditions, 6194 events. 1312/6194 cut-off events. For 1336806/1381051 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 71207 event pairs, 184 based on Foata normal form. 22/6087 useless extension candidates. Maximal degree in co-relation 170486. Up to 2837 conditions per place. [2022-12-06 17:09:40,370 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 301 selfloop transitions, 10 changer transitions 2283/2747 dead transitions. [2022-12-06 17:09:40,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1428 places, 2747 transitions, 299178 flow [2022-12-06 17:09:40,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:09:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:09:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2361 transitions. [2022-12-06 17:09:40,372 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.734827264239029 [2022-12-06 17:09:40,372 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1291 predicate places. [2022-12-06 17:09:40,372 INFO L495 AbstractCegarLoop]: Abstraction has has 1428 places, 2747 transitions, 299178 flow [2022-12-06 17:09:40,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:40,372 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:40,372 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:09:40,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-12-06 17:09:40,372 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:09:40,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:40,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1134598406, now seen corresponding path program 23 times [2022-12-06 17:09:40,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:40,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283562415] [2022-12-06 17:09:40,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:40,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:40,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:40,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283562415] [2022-12-06 17:09:40,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283562415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:40,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:40,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:09:40,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573905759] [2022-12-06 17:09:40,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:40,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:09:40,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:40,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:09:40,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:09:40,475 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:09:40,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1428 places, 2747 transitions, 299178 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:40,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:40,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:09:40,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:49,906 INFO L130 PetriNetUnfolder]: 1326/6302 cut-off events. [2022-12-06 17:09:49,907 INFO L131 PetriNetUnfolder]: For 1389446/1428153 co-relation queries the response was YES. [2022-12-06 17:09:49,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218470 conditions, 6302 events. 1326/6302 cut-off events. For 1389446/1428153 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 72683 event pairs, 192 based on Foata normal form. 21/6188 useless extension candidates. Maximal degree in co-relation 149564. Up to 2866 conditions per place. [2022-12-06 17:09:49,950 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 257 selfloop transitions, 39 changer transitions 2331/2782 dead transitions. [2022-12-06 17:09:49,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1448 places, 2782 transitions, 308126 flow [2022-12-06 17:09:49,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:09:49,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:09:49,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2354 transitions. [2022-12-06 17:09:49,951 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7326486150015562 [2022-12-06 17:09:49,952 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1311 predicate places. [2022-12-06 17:09:49,952 INFO L495 AbstractCegarLoop]: Abstraction has has 1448 places, 2782 transitions, 308126 flow [2022-12-06 17:09:49,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:49,952 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:49,952 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:09:49,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-12-06 17:09:49,952 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:09:49,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:49,953 INFO L85 PathProgramCache]: Analyzing trace with hash 900451426, now seen corresponding path program 24 times [2022-12-06 17:09:49,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:49,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950344727] [2022-12-06 17:09:49,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:49,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:50,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:50,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950344727] [2022-12-06 17:09:50,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950344727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:50,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:50,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:09:50,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303647437] [2022-12-06 17:09:50,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:50,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:09:50,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:50,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:09:50,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:09:50,047 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:09:50,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1448 places, 2782 transitions, 308126 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:50,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:50,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:09:50,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:09:59,584 INFO L130 PetriNetUnfolder]: 1365/6402 cut-off events. [2022-12-06 17:09:59,584 INFO L131 PetriNetUnfolder]: For 1473686/1521110 co-relation queries the response was YES. [2022-12-06 17:09:59,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227270 conditions, 6402 events. 1365/6402 cut-off events. For 1473686/1521110 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 73675 event pairs, 228 based on Foata normal form. 32/6292 useless extension candidates. Maximal degree in co-relation 156063. Up to 2916 conditions per place. [2022-12-06 17:09:59,628 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 280 selfloop transitions, 41 changer transitions 2366/2840 dead transitions. [2022-12-06 17:09:59,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1476 places, 2840 transitions, 319854 flow [2022-12-06 17:09:59,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 17:09:59,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 17:09:59,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3230 transitions. [2022-12-06 17:09:59,630 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7279693486590039 [2022-12-06 17:09:59,630 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1339 predicate places. [2022-12-06 17:09:59,631 INFO L495 AbstractCegarLoop]: Abstraction has has 1476 places, 2840 transitions, 319854 flow [2022-12-06 17:09:59,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:59,631 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:09:59,631 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:09:59,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-12-06 17:09:59,631 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:09:59,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:09:59,631 INFO L85 PathProgramCache]: Analyzing trace with hash 951099228, now seen corresponding path program 25 times [2022-12-06 17:09:59,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:09:59,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844016571] [2022-12-06 17:09:59,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:09:59,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:09:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:09:59,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:09:59,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:09:59,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844016571] [2022-12-06 17:09:59,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844016571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:09:59,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:09:59,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:09:59,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161734778] [2022-12-06 17:09:59,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:09:59,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:09:59,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:09:59,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:09:59,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:09:59,731 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:09:59,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1476 places, 2840 transitions, 319854 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:09:59,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:09:59,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:09:59,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:10:09,818 INFO L130 PetriNetUnfolder]: 1365/6459 cut-off events. [2022-12-06 17:10:09,818 INFO L131 PetriNetUnfolder]: For 1549177/1594827 co-relation queries the response was YES. [2022-12-06 17:10:09,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231618 conditions, 6459 events. 1365/6459 cut-off events. For 1549177/1594827 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 74773 event pairs, 200 based on Foata normal form. 29/6345 useless extension candidates. Maximal degree in co-relation 158392. Up to 2926 conditions per place. [2022-12-06 17:10:09,864 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 253 selfloop transitions, 25 changer transitions 2420/2853 dead transitions. [2022-12-06 17:10:09,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1500 places, 2853 transitions, 326615 flow [2022-12-06 17:10:09,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-06 17:10:09,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-06 17:10:09,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2792 transitions. [2022-12-06 17:10:09,866 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7299346405228758 [2022-12-06 17:10:09,866 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1363 predicate places. [2022-12-06 17:10:09,866 INFO L495 AbstractCegarLoop]: Abstraction has has 1500 places, 2853 transitions, 326615 flow [2022-12-06 17:10:09,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:09,866 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:10:09,867 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:10:09,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-12-06 17:10:09,867 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:10:09,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:10:09,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1170507192, now seen corresponding path program 26 times [2022-12-06 17:10:09,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:10:09,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681148781] [2022-12-06 17:10:09,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:10:09,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:10:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:10:09,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:10:09,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:10:09,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681148781] [2022-12-06 17:10:09,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681148781] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:10:09,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:10:09,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:10:09,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128451209] [2022-12-06 17:10:09,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:10:09,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:10:09,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:10:09,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:10:09,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:10:09,978 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:10:09,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1500 places, 2853 transitions, 326615 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:09,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:10:09,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:10:09,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:10:20,715 INFO L130 PetriNetUnfolder]: 1381/6507 cut-off events. [2022-12-06 17:10:20,715 INFO L131 PetriNetUnfolder]: For 1594666/1639592 co-relation queries the response was YES. [2022-12-06 17:10:20,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239713 conditions, 6507 events. 1381/6507 cut-off events. For 1594666/1639592 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 75419 event pairs, 210 based on Foata normal form. 27/6400 useless extension candidates. Maximal degree in co-relation 201756. Up to 3002 conditions per place. [2022-12-06 17:10:20,761 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 275 selfloop transitions, 43 changer transitions 2448/2919 dead transitions. [2022-12-06 17:10:20,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1521 places, 2919 transitions, 339771 flow [2022-12-06 17:10:20,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 17:10:20,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 17:10:20,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2469 transitions. [2022-12-06 17:10:20,763 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7335115864527629 [2022-12-06 17:10:20,763 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1384 predicate places. [2022-12-06 17:10:20,763 INFO L495 AbstractCegarLoop]: Abstraction has has 1521 places, 2919 transitions, 339771 flow [2022-12-06 17:10:20,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:20,763 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:10:20,763 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:10:20,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-12-06 17:10:20,764 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:10:20,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:10:20,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1018860234, now seen corresponding path program 27 times [2022-12-06 17:10:20,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:10:20,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166229504] [2022-12-06 17:10:20,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:10:20,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:10:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:10:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:10:20,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:10:20,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166229504] [2022-12-06 17:10:20,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166229504] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:10:20,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:10:20,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:10:20,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503636090] [2022-12-06 17:10:20,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:10:20,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:10:20,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:10:20,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:10:20,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:10:20,872 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:10:20,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1521 places, 2919 transitions, 339771 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:20,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:10:20,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:10:20,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:10:32,181 INFO L130 PetriNetUnfolder]: 1397/6666 cut-off events. [2022-12-06 17:10:32,181 INFO L131 PetriNetUnfolder]: For 1632298/1673999 co-relation queries the response was YES. [2022-12-06 17:10:32,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246498 conditions, 6666 events. 1397/6666 cut-off events. For 1632298/1673999 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 77834 event pairs, 202 based on Foata normal form. 20/6545 useless extension candidates. Maximal degree in co-relation 195064. Up to 3046 conditions per place. [2022-12-06 17:10:32,229 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 268 selfloop transitions, 44 changer transitions 2492/2959 dead transitions. [2022-12-06 17:10:32,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1548 places, 2959 transitions, 349981 flow [2022-12-06 17:10:32,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-06 17:10:32,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-06 17:10:32,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3123 transitions. [2022-12-06 17:10:32,231 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7289915966386554 [2022-12-06 17:10:32,231 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1411 predicate places. [2022-12-06 17:10:32,231 INFO L495 AbstractCegarLoop]: Abstraction has has 1548 places, 2959 transitions, 349981 flow [2022-12-06 17:10:32,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:32,232 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:10:32,232 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:10:32,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-12-06 17:10:32,232 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:10:32,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:10:32,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1594339838, now seen corresponding path program 28 times [2022-12-06 17:10:32,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:10:32,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928212358] [2022-12-06 17:10:32,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:10:32,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:10:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:10:32,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:10:32,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:10:32,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928212358] [2022-12-06 17:10:32,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928212358] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:10:32,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:10:32,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:10:32,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609183329] [2022-12-06 17:10:32,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:10:32,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:10:32,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:10:32,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:10:32,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:10:32,342 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:10:32,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1548 places, 2959 transitions, 349981 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:32,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:10:32,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:10:32,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:10:45,991 INFO L130 PetriNetUnfolder]: 1418/6647 cut-off events. [2022-12-06 17:10:45,992 INFO L131 PetriNetUnfolder]: For 1704862/1754033 co-relation queries the response was YES. [2022-12-06 17:10:46,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254299 conditions, 6647 events. 1418/6647 cut-off events. For 1704862/1754033 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 77425 event pairs, 227 based on Foata normal form. 24/6536 useless extension candidates. Maximal degree in co-relation 201523. Up to 3116 conditions per place. [2022-12-06 17:10:46,042 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 275 selfloop transitions, 43 changer transitions 2535/3006 dead transitions. [2022-12-06 17:10:46,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1572 places, 3006 transitions, 361251 flow [2022-12-06 17:10:46,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-06 17:10:46,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-06 17:10:46,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2798 transitions. [2022-12-06 17:10:46,043 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7315032679738562 [2022-12-06 17:10:46,044 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1435 predicate places. [2022-12-06 17:10:46,044 INFO L495 AbstractCegarLoop]: Abstraction has has 1572 places, 3006 transitions, 361251 flow [2022-12-06 17:10:46,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:46,044 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:10:46,044 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:10:46,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-12-06 17:10:46,044 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:10:46,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:10:46,044 INFO L85 PathProgramCache]: Analyzing trace with hash 253378454, now seen corresponding path program 29 times [2022-12-06 17:10:46,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:10:46,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246447639] [2022-12-06 17:10:46,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:10:46,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:10:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:10:46,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:10:46,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:10:46,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246447639] [2022-12-06 17:10:46,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246447639] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:10:46,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:10:46,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:10:46,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041318029] [2022-12-06 17:10:46,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:10:46,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:10:46,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:10:46,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:10:46,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:10:46,153 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:10:46,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1572 places, 3006 transitions, 361251 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:46,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:10:46,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:10:46,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:10:59,425 INFO L130 PetriNetUnfolder]: 1428/6796 cut-off events. [2022-12-06 17:10:59,425 INFO L131 PetriNetUnfolder]: For 1789371/1838715 co-relation queries the response was YES. [2022-12-06 17:10:59,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260521 conditions, 6796 events. 1428/6796 cut-off events. For 1789371/1838715 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 79707 event pairs, 216 based on Foata normal form. 12/6669 useless extension candidates. Maximal degree in co-relation 178395. Up to 3151 conditions per place. [2022-12-06 17:10:59,474 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 270 selfloop transitions, 42 changer transitions 2569/3036 dead transitions. [2022-12-06 17:10:59,474 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1592 places, 3036 transitions, 370479 flow [2022-12-06 17:10:59,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:10:59,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:10:59,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2360 transitions. [2022-12-06 17:10:59,476 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7345160286336757 [2022-12-06 17:10:59,476 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1455 predicate places. [2022-12-06 17:10:59,476 INFO L495 AbstractCegarLoop]: Abstraction has has 1592 places, 3036 transitions, 370479 flow [2022-12-06 17:10:59,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:59,476 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:10:59,477 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:10:59,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-12-06 17:10:59,477 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:10:59,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:10:59,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1876966868, now seen corresponding path program 30 times [2022-12-06 17:10:59,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:10:59,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753850211] [2022-12-06 17:10:59,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:10:59,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:10:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:10:59,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:10:59,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:10:59,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753850211] [2022-12-06 17:10:59,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753850211] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:10:59,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:10:59,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:10:59,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993707735] [2022-12-06 17:10:59,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:10:59,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:10:59,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:10:59,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:10:59,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:10:59,590 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:10:59,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1592 places, 3036 transitions, 370479 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:10:59,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:10:59,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:10:59,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:11:13,046 INFO L130 PetriNetUnfolder]: 1442/6876 cut-off events. [2022-12-06 17:11:13,046 INFO L131 PetriNetUnfolder]: For 1889351/1938254 co-relation queries the response was YES. [2022-12-06 17:11:13,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266837 conditions, 6876 events. 1442/6876 cut-off events. For 1889351/1938254 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 80947 event pairs, 208 based on Foata normal form. 26/6759 useless extension candidates. Maximal degree in co-relation 182404. Up to 3189 conditions per place. [2022-12-06 17:11:13,095 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 253 selfloop transitions, 40 changer transitions 2623/3071 dead transitions. [2022-12-06 17:11:13,096 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1615 places, 3071 transitions, 380495 flow [2022-12-06 17:11:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-06 17:11:13,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-06 17:11:13,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2685 transitions. [2022-12-06 17:11:13,097 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7312091503267973 [2022-12-06 17:11:13,097 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1478 predicate places. [2022-12-06 17:11:13,097 INFO L495 AbstractCegarLoop]: Abstraction has has 1615 places, 3071 transitions, 380495 flow [2022-12-06 17:11:13,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:13,098 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:11:13,098 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:11:13,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-12-06 17:11:13,098 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:11:13,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:11:13,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1782241794, now seen corresponding path program 31 times [2022-12-06 17:11:13,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:11:13,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589877826] [2022-12-06 17:11:13,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:11:13,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:11:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:11:13,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:11:13,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:11:13,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589877826] [2022-12-06 17:11:13,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589877826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:11:13,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:11:13,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:11:13,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463630443] [2022-12-06 17:11:13,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:11:13,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:11:13,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:11:13,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:11:13,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:11:13,209 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:11:13,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1615 places, 3071 transitions, 380495 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:13,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:11:13,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:11:13,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:11:24,946 INFO L130 PetriNetUnfolder]: 1447/6885 cut-off events. [2022-12-06 17:11:24,946 INFO L131 PetriNetUnfolder]: For 1947793/2002009 co-relation queries the response was YES. [2022-12-06 17:11:24,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272968 conditions, 6885 events. 1447/6885 cut-off events. For 1947793/2002009 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 81050 event pairs, 233 based on Foata normal form. 20/6765 useless extension candidates. Maximal degree in co-relation 215774. Up to 3223 conditions per place. [2022-12-06 17:11:24,993 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 262 selfloop transitions, 26 changer transitions 2654/3095 dead transitions. [2022-12-06 17:11:24,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1635 places, 3095 transitions, 389110 flow [2022-12-06 17:11:24,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:11:24,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:11:24,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2362 transitions. [2022-12-06 17:11:24,995 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7351384998443822 [2022-12-06 17:11:24,995 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1498 predicate places. [2022-12-06 17:11:24,995 INFO L495 AbstractCegarLoop]: Abstraction has has 1635 places, 3095 transitions, 389110 flow [2022-12-06 17:11:24,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:24,995 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:11:24,995 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:11:24,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-12-06 17:11:24,995 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:11:24,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:11:24,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1187363804, now seen corresponding path program 32 times [2022-12-06 17:11:24,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:11:24,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077327592] [2022-12-06 17:11:24,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:11:24,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:11:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:11:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:11:25,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:11:25,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077327592] [2022-12-06 17:11:25,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077327592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:11:25,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:11:25,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:11:25,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998386024] [2022-12-06 17:11:25,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:11:25,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:11:25,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:11:25,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:11:25,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:11:25,124 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:11:25,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1635 places, 3095 transitions, 389110 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:25,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:11:25,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:11:25,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:11:38,901 INFO L130 PetriNetUnfolder]: 1455/6888 cut-off events. [2022-12-06 17:11:38,901 INFO L131 PetriNetUnfolder]: For 1985318/2038965 co-relation queries the response was YES. [2022-12-06 17:11:38,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279137 conditions, 6888 events. 1455/6888 cut-off events. For 1985318/2038965 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 80910 event pairs, 241 based on Foata normal form. 31/6778 useless extension candidates. Maximal degree in co-relation 220422. Up to 3254 conditions per place. [2022-12-06 17:11:38,950 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 252 selfloop transitions, 23 changer transitions 2692/3120 dead transitions. [2022-12-06 17:11:38,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1655 places, 3120 transitions, 398063 flow [2022-12-06 17:11:38,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 17:11:38,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 17:11:38,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2358 transitions. [2022-12-06 17:11:38,952 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7338935574229691 [2022-12-06 17:11:38,952 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1518 predicate places. [2022-12-06 17:11:38,952 INFO L495 AbstractCegarLoop]: Abstraction has has 1655 places, 3120 transitions, 398063 flow [2022-12-06 17:11:38,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:38,953 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:11:38,953 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:11:38,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-12-06 17:11:38,953 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:11:38,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:11:38,953 INFO L85 PathProgramCache]: Analyzing trace with hash -851732726, now seen corresponding path program 33 times [2022-12-06 17:11:38,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:11:38,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638050491] [2022-12-06 17:11:38,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:11:38,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:11:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:11:39,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:11:39,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:11:39,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638050491] [2022-12-06 17:11:39,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638050491] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:11:39,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:11:39,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:11:39,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456206336] [2022-12-06 17:11:39,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:11:39,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:11:39,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:11:39,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:11:39,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:11:39,056 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:11:39,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1655 places, 3120 transitions, 398063 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:39,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:11:39,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:11:39,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:11:53,153 INFO L130 PetriNetUnfolder]: 1480/7067 cut-off events. [2022-12-06 17:11:53,154 INFO L131 PetriNetUnfolder]: For 2116908/2173041 co-relation queries the response was YES. [2022-12-06 17:11:53,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286477 conditions, 7067 events. 1480/7067 cut-off events. For 2116908/2173041 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 83440 event pairs, 247 based on Foata normal form. 26/6938 useless extension candidates. Maximal degree in co-relation 201628. Up to 3302 conditions per place. [2022-12-06 17:11:53,205 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 244 selfloop transitions, 22 changer transitions 2739/3158 dead transitions. [2022-12-06 17:11:53,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1680 places, 3158 transitions, 408820 flow [2022-12-06 17:11:53,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-06 17:11:53,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-06 17:11:53,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2906 transitions. [2022-12-06 17:11:53,207 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.730517848164907 [2022-12-06 17:11:53,208 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1543 predicate places. [2022-12-06 17:11:53,208 INFO L495 AbstractCegarLoop]: Abstraction has has 1680 places, 3158 transitions, 408820 flow [2022-12-06 17:11:53,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:53,208 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:11:53,208 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:11:53,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-12-06 17:11:53,208 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:11:53,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:11:53,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1530775264, now seen corresponding path program 34 times [2022-12-06 17:11:53,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:11:53,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188007186] [2022-12-06 17:11:53,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:11:53,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:11:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:11:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:11:53,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:11:53,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188007186] [2022-12-06 17:11:53,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188007186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:11:53,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:11:53,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:11:53,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099831029] [2022-12-06 17:11:53,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:11:53,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:11:53,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:11:53,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:11:53,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:11:53,316 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:11:53,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1680 places, 3158 transitions, 408820 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:11:53,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:11:53,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:11:53,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:12:08,573 INFO L130 PetriNetUnfolder]: 1479/7145 cut-off events. [2022-12-06 17:12:08,573 INFO L131 PetriNetUnfolder]: For 2175555/2228218 co-relation queries the response was YES. [2022-12-06 17:12:08,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292559 conditions, 7145 events. 1479/7145 cut-off events. For 2175555/2228218 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 84865 event pairs, 230 based on Foata normal form. 22/7018 useless extension candidates. Maximal degree in co-relation 198480. Up to 3330 conditions per place. [2022-12-06 17:12:08,625 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 224 selfloop transitions, 22 changer transitions 2785/3188 dead transitions. [2022-12-06 17:12:08,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1699 places, 3188 transitions, 418652 flow [2022-12-06 17:12:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 17:12:08,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 17:12:08,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2247 transitions. [2022-12-06 17:12:08,627 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.734313725490196 [2022-12-06 17:12:08,627 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1562 predicate places. [2022-12-06 17:12:08,627 INFO L495 AbstractCegarLoop]: Abstraction has has 1699 places, 3188 transitions, 418652 flow [2022-12-06 17:12:08,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:12:08,627 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:12:08,628 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:12:08,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-12-06 17:12:08,628 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:12:08,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:12:08,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2025025952, now seen corresponding path program 35 times [2022-12-06 17:12:08,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:12:08,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312056504] [2022-12-06 17:12:08,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:12:08,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:12:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:12:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:12:08,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:12:08,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312056504] [2022-12-06 17:12:08,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312056504] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:12:08,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:12:08,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 17:12:08,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124071740] [2022-12-06 17:12:08,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:12:08,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 17:12:08,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:12:08,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 17:12:08,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-06 17:12:08,739 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 153 [2022-12-06 17:12:08,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1699 places, 3188 transitions, 418652 flow. Second operand has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:12:08,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:12:08,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 153 [2022-12-06 17:12:08,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:12:24,062 INFO L130 PetriNetUnfolder]: 1479/7089 cut-off events. [2022-12-06 17:12:24,062 INFO L131 PetriNetUnfolder]: For 2209133/2262770 co-relation queries the response was YES. [2022-12-06 17:12:24,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295927 conditions, 7089 events. 1479/7089 cut-off events. For 2209133/2262770 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 84112 event pairs, 220 based on Foata normal form. 29/6973 useless extension candidates. Maximal degree in co-relation 201068. Up to 3324 conditions per place. [2022-12-06 17:12:24,113 INFO L137 encePairwiseOnDemand]: 137/153 looper letters, 194 selfloop transitions, 0 changer transitions 2841/3182 dead transitions. [2022-12-06 17:12:24,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1721 places, 3182 transitions, 423590 flow [2022-12-06 17:12:24,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-06 17:12:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-06 17:12:24,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2576 transitions. [2022-12-06 17:12:24,114 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7320261437908496 [2022-12-06 17:12:24,114 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1584 predicate places. [2022-12-06 17:12:24,115 INFO L495 AbstractCegarLoop]: Abstraction has has 1721 places, 3182 transitions, 423590 flow [2022-12-06 17:12:24,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 109.72727272727273) internal successors, (1207), 11 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:12:24,115 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:12:24,115 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:12:24,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-12-06 17:12:24,115 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:12:24,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:12:24,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1923588924, now seen corresponding path program 1 times [2022-12-06 17:12:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:12:24,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717709255] [2022-12-06 17:12:24,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:12:24,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:12:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:12:24,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:12:24,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:12:24,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717709255] [2022-12-06 17:12:24,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717709255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:12:24,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:12:24,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 17:12:24,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375396956] [2022-12-06 17:12:24,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:12:24,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 17:12:24,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:12:24,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 17:12:24,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 17:12:24,245 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 153 [2022-12-06 17:12:24,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1721 places, 3182 transitions, 423590 flow. Second operand has 4 states, 4 states have (on average 123.25) internal successors, (493), 4 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:12:24,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:12:24,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 153 [2022-12-06 17:12:24,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:12:37,977 INFO L130 PetriNetUnfolder]: 1495/7155 cut-off events. [2022-12-06 17:12:37,977 INFO L131 PetriNetUnfolder]: For 2617866/2706918 co-relation queries the response was YES. [2022-12-06 17:12:37,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297112 conditions, 7155 events. 1495/7155 cut-off events. For 2617866/2706918 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 84926 event pairs, 243 based on Foata normal form. 22/7026 useless extension candidates. Maximal degree in co-relation 201472. Up to 3330 conditions per place. [2022-12-06 17:12:38,027 INFO L137 encePairwiseOnDemand]: 149/153 looper letters, 84 selfloop transitions, 4 changer transitions 2841/3170 dead transitions. [2022-12-06 17:12:38,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1723 places, 3170 transitions, 424088 flow [2022-12-06 17:12:38,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 17:12:38,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 17:12:38,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2022-12-06 17:12:38,028 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8496732026143791 [2022-12-06 17:12:38,028 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1586 predicate places. [2022-12-06 17:12:38,028 INFO L495 AbstractCegarLoop]: Abstraction has has 1723 places, 3170 transitions, 424088 flow [2022-12-06 17:12:38,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.25) internal successors, (493), 4 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:12:38,028 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:12:38,029 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:12:38,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-12-06 17:12:38,029 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:12:38,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:12:38,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2132389066, now seen corresponding path program 1 times [2022-12-06 17:12:38,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:12:38,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084234293] [2022-12-06 17:12:38,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:12:38,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:12:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:12:38,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:12:38,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:12:38,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084234293] [2022-12-06 17:12:38,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084234293] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:12:38,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:12:38,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 17:12:38,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957662146] [2022-12-06 17:12:38,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:12:38,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 17:12:38,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:12:38,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 17:12:38,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-12-06 17:12:38,311 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 153 [2022-12-06 17:12:38,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1723 places, 3170 transitions, 424088 flow. Second operand has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:12:38,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:12:38,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 153 [2022-12-06 17:12:38,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:13:08,028 INFO L130 PetriNetUnfolder]: 2581/10762 cut-off events. [2022-12-06 17:13:08,029 INFO L131 PetriNetUnfolder]: For 4644189/4726004 co-relation queries the response was YES. [2022-12-06 17:13:08,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433645 conditions, 10762 events. 2581/10762 cut-off events. For 4644189/4726004 co-relation queries the response was YES. Maximal size of possible extension queue 702. Compared 132279 event pairs, 421 based on Foata normal form. 133/10617 useless extension candidates. Maximal degree in co-relation 290612. Up to 4761 conditions per place. [2022-12-06 17:13:08,178 INFO L137 encePairwiseOnDemand]: 118/153 looper letters, 358 selfloop transitions, 142 changer transitions 3513/4096 dead transitions. [2022-12-06 17:13:08,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1770 places, 4096 transitions, 549603 flow [2022-12-06 17:13:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-06 17:13:08,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-06 17:13:08,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 4202 transitions. [2022-12-06 17:13:08,181 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5721677559912854 [2022-12-06 17:13:08,181 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1633 predicate places. [2022-12-06 17:13:08,181 INFO L495 AbstractCegarLoop]: Abstraction has has 1770 places, 4096 transitions, 549603 flow [2022-12-06 17:13:08,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:13:08,182 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:13:08,182 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:13:08,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-12-06 17:13:08,182 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:13:08,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:13:08,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1203574448, now seen corresponding path program 2 times [2022-12-06 17:13:08,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:13:08,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117504949] [2022-12-06 17:13:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:13:08,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:13:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:13:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:13:08,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:13:08,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117504949] [2022-12-06 17:13:08,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117504949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:13:08,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:13:08,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 17:13:08,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279606025] [2022-12-06 17:13:08,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:13:08,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 17:13:08,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:13:08,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 17:13:08,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-12-06 17:13:08,478 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 153 [2022-12-06 17:13:08,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1770 places, 4096 transitions, 549603 flow. Second operand has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:13:08,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:13:08,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 153 [2022-12-06 17:13:08,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:13:53,427 INFO L130 PetriNetUnfolder]: 2748/11537 cut-off events. [2022-12-06 17:13:53,427 INFO L131 PetriNetUnfolder]: For 4838562/4905345 co-relation queries the response was YES. [2022-12-06 17:13:53,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469847 conditions, 11537 events. 2748/11537 cut-off events. For 4838562/4905345 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 143187 event pairs, 438 based on Foata normal form. 177/11402 useless extension candidates. Maximal degree in co-relation 312691. Up to 5158 conditions per place. [2022-12-06 17:13:53,531 INFO L137 encePairwiseOnDemand]: 118/153 looper letters, 509 selfloop transitions, 80 changer transitions 3672/4344 dead transitions. [2022-12-06 17:13:53,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1811 places, 4344 transitions, 586879 flow [2022-12-06 17:13:53,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-06 17:13:53,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-06 17:13:53,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 3622 transitions. [2022-12-06 17:13:53,533 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5636476812947401 [2022-12-06 17:13:53,533 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1674 predicate places. [2022-12-06 17:13:53,533 INFO L495 AbstractCegarLoop]: Abstraction has has 1811 places, 4344 transitions, 586879 flow [2022-12-06 17:13:53,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:13:53,534 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:13:53,534 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:13:53,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-12-06 17:13:53,534 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:13:53,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:13:53,534 INFO L85 PathProgramCache]: Analyzing trace with hash 713986402, now seen corresponding path program 3 times [2022-12-06 17:13:53,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:13:53,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113075741] [2022-12-06 17:13:53,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:13:53,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:13:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:13:53,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:13:53,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:13:53,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113075741] [2022-12-06 17:13:53,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113075741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:13:53,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:13:53,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 17:13:53,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243945486] [2022-12-06 17:13:53,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:13:53,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 17:13:53,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:13:53,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 17:13:53,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-12-06 17:13:53,801 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 153 [2022-12-06 17:13:53,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1811 places, 4344 transitions, 586879 flow. Second operand has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:13:53,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:13:53,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 153 [2022-12-06 17:13:53,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:14:49,399 INFO L130 PetriNetUnfolder]: 2880/12037 cut-off events. [2022-12-06 17:14:49,400 INFO L131 PetriNetUnfolder]: For 5242598/5316047 co-relation queries the response was YES. [2022-12-06 17:14:49,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500445 conditions, 12037 events. 2880/12037 cut-off events. For 5242598/5316047 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 150027 event pairs, 508 based on Foata normal form. 179/11868 useless extension candidates. Maximal degree in co-relation 330262. Up to 5458 conditions per place. [2022-12-06 17:14:49,511 INFO L137 encePairwiseOnDemand]: 118/153 looper letters, 577 selfloop transitions, 91 changer transitions 3799/4550 dead transitions. [2022-12-06 17:14:49,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1850 places, 4550 transitions, 621827 flow [2022-12-06 17:14:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-06 17:14:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-12-06 17:14:49,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3456 transitions. [2022-12-06 17:14:49,514 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5647058823529412 [2022-12-06 17:14:49,514 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1713 predicate places. [2022-12-06 17:14:49,514 INFO L495 AbstractCegarLoop]: Abstraction has has 1850 places, 4550 transitions, 621827 flow [2022-12-06 17:14:49,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:14:49,514 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:14:49,514 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:14:49,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-12-06 17:14:49,515 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:14:49,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:14:49,515 INFO L85 PathProgramCache]: Analyzing trace with hash -635498318, now seen corresponding path program 4 times [2022-12-06 17:14:49,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:14:49,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960192308] [2022-12-06 17:14:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:14:49,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:14:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:14:49,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:14:49,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:14:49,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960192308] [2022-12-06 17:14:49,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960192308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:14:49,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:14:49,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 17:14:49,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976537099] [2022-12-06 17:14:49,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:14:49,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 17:14:49,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:14:49,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 17:14:49,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-12-06 17:14:49,780 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 153 [2022-12-06 17:14:49,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1850 places, 4550 transitions, 621827 flow. Second operand has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:14:49,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:14:49,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 153 [2022-12-06 17:14:49,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:15:49,278 INFO L130 PetriNetUnfolder]: 2993/12408 cut-off events. [2022-12-06 17:15:49,278 INFO L131 PetriNetUnfolder]: For 5516421/5593956 co-relation queries the response was YES. [2022-12-06 17:15:49,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526827 conditions, 12408 events. 2993/12408 cut-off events. For 5516421/5593956 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 154456 event pairs, 518 based on Foata normal form. 183/12242 useless extension candidates. Maximal degree in co-relation 347215. Up to 5711 conditions per place. [2022-12-06 17:15:49,394 INFO L137 encePairwiseOnDemand]: 118/153 looper letters, 604 selfloop transitions, 118 changer transitions 3904/4709 dead transitions. [2022-12-06 17:15:49,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1886 places, 4709 transitions, 652417 flow [2022-12-06 17:15:49,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-12-06 17:15:49,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-12-06 17:15:49,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3198 transitions. [2022-12-06 17:15:49,396 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5649178590355061 [2022-12-06 17:15:49,397 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1749 predicate places. [2022-12-06 17:15:49,397 INFO L495 AbstractCegarLoop]: Abstraction has has 1886 places, 4709 transitions, 652417 flow [2022-12-06 17:15:49,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:15:49,397 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:15:49,397 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:15:49,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-12-06 17:15:49,397 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:15:49,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:15:49,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1350629132, now seen corresponding path program 5 times [2022-12-06 17:15:49,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:15:49,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62817829] [2022-12-06 17:15:49,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:15:49,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:15:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:15:49,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:15:49,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:15:49,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62817829] [2022-12-06 17:15:49,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62817829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:15:49,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:15:49,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 17:15:49,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38306325] [2022-12-06 17:15:49,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:15:49,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 17:15:49,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:15:49,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 17:15:49,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-12-06 17:15:49,663 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 153 [2022-12-06 17:15:49,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1886 places, 4709 transitions, 652417 flow. Second operand has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:15:49,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:15:49,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 153 [2022-12-06 17:15:49,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:16:49,561 INFO L130 PetriNetUnfolder]: 3005/12546 cut-off events. [2022-12-06 17:16:49,562 INFO L131 PetriNetUnfolder]: For 5679848/5757300 co-relation queries the response was YES. [2022-12-06 17:16:49,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 537751 conditions, 12546 events. 3005/12546 cut-off events. For 5679848/5757300 co-relation queries the response was YES. Maximal size of possible extension queue 739. Compared 156652 event pairs, 503 based on Foata normal form. 177/12354 useless extension candidates. Maximal degree in co-relation 353054. Up to 5750 conditions per place. [2022-12-06 17:16:49,724 INFO L137 encePairwiseOnDemand]: 118/153 looper letters, 567 selfloop transitions, 104 changer transitions 4019/4773 dead transitions. [2022-12-06 17:16:49,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1924 places, 4773 transitions, 670985 flow [2022-12-06 17:16:49,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-06 17:16:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-12-06 17:16:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 3373 transitions. [2022-12-06 17:16:49,728 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5652756829227418 [2022-12-06 17:16:49,728 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1787 predicate places. [2022-12-06 17:16:49,728 INFO L495 AbstractCegarLoop]: Abstraction has has 1924 places, 4773 transitions, 670985 flow [2022-12-06 17:16:49,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:16:49,728 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:16:49,728 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:16:49,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-12-06 17:16:49,729 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:16:49,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:16:49,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1736684022, now seen corresponding path program 6 times [2022-12-06 17:16:49,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:16:49,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728043766] [2022-12-06 17:16:49,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:16:49,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:16:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:16:50,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:16:50,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:16:50,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728043766] [2022-12-06 17:16:50,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728043766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:16:50,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:16:50,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 17:16:50,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344131160] [2022-12-06 17:16:50,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:16:50,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 17:16:50,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:16:50,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 17:16:50,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-12-06 17:16:50,063 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 153 [2022-12-06 17:16:50,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1924 places, 4773 transitions, 670985 flow. Second operand has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:16:50,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:16:50,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 153 [2022-12-06 17:16:50,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:17:56,290 INFO L130 PetriNetUnfolder]: 3053/12725 cut-off events. [2022-12-06 17:17:56,294 INFO L131 PetriNetUnfolder]: For 5771421/5853652 co-relation queries the response was YES. [2022-12-06 17:17:56,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557884 conditions, 12725 events. 3053/12725 cut-off events. For 5771421/5853652 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 158914 event pairs, 544 based on Foata normal form. 180/12544 useless extension candidates. Maximal degree in co-relation 365304. Up to 5919 conditions per place. [2022-12-06 17:17:56,532 INFO L137 encePairwiseOnDemand]: 118/153 looper letters, 548 selfloop transitions, 166 changer transitions 4102/4899 dead transitions. [2022-12-06 17:17:56,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1956 places, 4899 transitions, 698715 flow [2022-12-06 17:17:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-06 17:17:56,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-12-06 17:17:56,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2876 transitions. [2022-12-06 17:17:56,535 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5696177460883344 [2022-12-06 17:17:56,535 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1819 predicate places. [2022-12-06 17:17:56,535 INFO L495 AbstractCegarLoop]: Abstraction has has 1956 places, 4899 transitions, 698715 flow [2022-12-06 17:17:56,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:17:56,536 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:17:56,536 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:17:56,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-12-06 17:17:56,537 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:17:56,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:17:56,537 INFO L85 PathProgramCache]: Analyzing trace with hash -621635852, now seen corresponding path program 7 times [2022-12-06 17:17:56,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:17:56,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976762665] [2022-12-06 17:17:56,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:17:56,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:17:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:17:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:17:56,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:17:56,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976762665] [2022-12-06 17:17:56,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976762665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:17:56,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:17:56,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 17:17:56,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752724255] [2022-12-06 17:17:56,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:17:56,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 17:17:56,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:17:56,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 17:17:56,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-12-06 17:17:56,815 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 153 [2022-12-06 17:17:56,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1956 places, 4899 transitions, 698715 flow. Second operand has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:17:56,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:17:56,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 153 [2022-12-06 17:17:56,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:19:07,593 INFO L130 PetriNetUnfolder]: 3091/12955 cut-off events. [2022-12-06 17:19:07,593 INFO L131 PetriNetUnfolder]: For 6022656/6102514 co-relation queries the response was YES. [2022-12-06 17:19:07,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573434 conditions, 12955 events. 3091/12955 cut-off events. For 6022656/6102514 co-relation queries the response was YES. Maximal size of possible extension queue 737. Compared 162131 event pairs, 534 based on Foata normal form. 182/12766 useless extension candidates. Maximal degree in co-relation 374515. Up to 6018 conditions per place. [2022-12-06 17:19:07,709 INFO L137 encePairwiseOnDemand]: 118/153 looper letters, 509 selfloop transitions, 199 changer transitions 4187/4978 dead transitions. [2022-12-06 17:19:07,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1988 places, 4978 transitions, 719397 flow [2022-12-06 17:19:07,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-06 17:19:07,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-12-06 17:19:07,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2890 transitions. [2022-12-06 17:19:07,711 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5723905723905723 [2022-12-06 17:19:07,711 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1851 predicate places. [2022-12-06 17:19:07,711 INFO L495 AbstractCegarLoop]: Abstraction has has 1988 places, 4978 transitions, 719397 flow [2022-12-06 17:19:07,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:19:07,712 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:19:07,712 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:19:07,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-12-06 17:19:07,712 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:19:07,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:19:07,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1397741686, now seen corresponding path program 8 times [2022-12-06 17:19:07,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:19:07,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552441407] [2022-12-06 17:19:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:19:07,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:19:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:19:07,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:19:07,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:19:07,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552441407] [2022-12-06 17:19:07,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552441407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:19:07,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:19:07,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 17:19:07,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171118040] [2022-12-06 17:19:07,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:19:07,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 17:19:07,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:19:07,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 17:19:07,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-12-06 17:19:07,967 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 153 [2022-12-06 17:19:07,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1988 places, 4978 transitions, 719397 flow. Second operand has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:19:07,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:19:07,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 153 [2022-12-06 17:19:07,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:20:21,172 INFO L130 PetriNetUnfolder]: 3086/12991 cut-off events. [2022-12-06 17:20:21,172 INFO L131 PetriNetUnfolder]: For 6118498/6205546 co-relation queries the response was YES. [2022-12-06 17:20:21,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584430 conditions, 12991 events. 3086/12991 cut-off events. For 6118498/6205546 co-relation queries the response was YES. Maximal size of possible extension queue 732. Compared 162708 event pairs, 528 based on Foata normal form. 185/12811 useless extension candidates. Maximal degree in co-relation 379758. Up to 6050 conditions per place. [2022-12-06 17:20:21,290 INFO L137 encePairwiseOnDemand]: 118/153 looper letters, 500 selfloop transitions, 176 changer transitions 4272/5031 dead transitions. [2022-12-06 17:20:21,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2018 places, 5031 transitions, 736313 flow [2022-12-06 17:20:21,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-06 17:20:21,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-06 17:20:21,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2716 transitions. [2022-12-06 17:20:21,292 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5726333544170357 [2022-12-06 17:20:21,292 INFO L294 CegarLoopForPetriNet]: 137 programPoint places, 1881 predicate places. [2022-12-06 17:20:21,292 INFO L495 AbstractCegarLoop]: Abstraction has has 2018 places, 5031 transitions, 736313 flow [2022-12-06 17:20:21,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:20:21,293 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:20:21,293 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:20:21,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-12-06 17:20:21,293 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 17:20:21,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:20:21,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1274696796, now seen corresponding path program 9 times [2022-12-06 17:20:21,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:20:21,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482510267] [2022-12-06 17:20:21,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:20:21,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:20:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:20:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:20:21,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:20:21,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482510267] [2022-12-06 17:20:21,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482510267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:20:21,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:20:21,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-06 17:20:21,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102202558] [2022-12-06 17:20:21,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:20:21,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 17:20:21,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:20:21,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 17:20:21,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-12-06 17:20:21,547 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 153 [2022-12-06 17:20:21,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2018 places, 5031 transitions, 736313 flow. Second operand has 18 states, 18 states have (on average 80.83333333333333) internal successors, (1455), 18 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:20:21,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:20:21,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 153 [2022-12-06 17:20:21,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-06 17:20:58,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 17:20:58,504 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 17:20:58,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-12-06 17:20:58,505 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 78/153 universal loopers) in iteration 87,while PetriNetUnfolder was constructing finite prefix that currently has 310762 conditions, 7299 events (1860/7298 cut-off events. For 3971246/4034739 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 94853 event pairs, 176 based on Foata normal form. 178/7829 useless extension candidates. Maximal degree in co-relation 277047. Up to 3138 conditions per place.). [2022-12-06 17:20:58,506 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 17:20:58,506 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 17:20:58,507 INFO L458 BasicCegarLoop]: Path program histogram: [35, 35, 9, 3, 3, 1, 1] [2022-12-06 17:20:58,509 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 17:20:58,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 17:20:58,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:20:58 BasicIcfg [2022-12-06 17:20:58,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 17:20:58,512 INFO L158 Benchmark]: Toolchain (without parser) took 841043.55ms. Allocated memory was 192.9MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 168.0MB in the beginning and 515.7MB in the end (delta: -347.7MB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. [2022-12-06 17:20:58,512 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 192.9MB. Free memory was 168.8MB in the beginning and 168.7MB in the end (delta: 87.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 17:20:58,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.08ms. Allocated memory is still 192.9MB. Free memory was 168.0MB in the beginning and 157.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-06 17:20:58,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.18ms. Allocated memory is still 192.9MB. Free memory was 156.4MB in the beginning and 154.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 17:20:58,512 INFO L158 Benchmark]: Boogie Preprocessor took 15.09ms. Allocated memory is still 192.9MB. Free memory was 154.9MB in the beginning and 153.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 17:20:58,512 INFO L158 Benchmark]: RCFGBuilder took 400.41ms. Allocated memory is still 192.9MB. Free memory was 153.3MB in the beginning and 137.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-06 17:20:58,512 INFO L158 Benchmark]: TraceAbstraction took 840439.32ms. Allocated memory was 192.9MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 136.0MB in the beginning and 515.7MB in the end (delta: -379.7MB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. [2022-12-06 17:20:58,513 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 17:20:58,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 192.9MB. Free memory was 168.8MB in the beginning and 168.7MB in the end (delta: 87.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 160.08ms. Allocated memory is still 192.9MB. Free memory was 168.0MB in the beginning and 157.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.18ms. Allocated memory is still 192.9MB. Free memory was 156.4MB in the beginning and 154.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.09ms. Allocated memory is still 192.9MB. Free memory was 154.9MB in the beginning and 153.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 400.41ms. Allocated memory is still 192.9MB. Free memory was 153.3MB in the beginning and 137.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 840439.32ms. Allocated memory was 192.9MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 136.0MB in the beginning and 515.7MB in the end (delta: -379.7MB). Peak memory consumption was 3.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 78/153 universal loopers) in iteration 87,while PetriNetUnfolder was constructing finite prefix that currently has 310762 conditions, 7299 events (1860/7298 cut-off events. For 3971246/4034739 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 94853 event pairs, 176 based on Foata normal form. 178/7829 useless extension candidates. Maximal degree in co-relation 277047. Up to 3138 conditions per place.). - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 78/153 universal loopers) in iteration 87,while PetriNetUnfolder was constructing finite prefix that currently has 310762 conditions, 7299 events (1860/7298 cut-off events. For 3971246/4034739 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 94853 event pairs, 176 based on Foata normal form. 178/7829 useless extension candidates. Maximal degree in co-relation 277047. Up to 3138 conditions per place.). - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (18states, 78/153 universal loopers) in iteration 87,while PetriNetUnfolder was constructing finite prefix that currently has 310762 conditions, 7299 events (1860/7298 cut-off events. For 3971246/4034739 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 94853 event pairs, 176 based on Foata normal form. 178/7829 useless extension candidates. Maximal degree in co-relation 277047. Up to 3138 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 213 locations, 3 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: 840.3s, OverallIterations: 87, TraceHistogramMax: 1, PathProgramHistogramMax: 35, EmptinessCheckTime: 0.0s, AutomataDifference: 827.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7931 SdHoareTripleChecker+Valid, 12.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7931 mSDsluCounter, 44509 SdHoareTripleChecker+Invalid, 10.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38258 mSDsCounter, 341 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30276 IncrementalHoareTripleChecker+Invalid, 30617 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 341 mSolverCounterUnsat, 6251 mSDtfsCounter, 30276 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2521 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 2254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13472 ImplicationChecksByTransitivity, 20.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=736313occurred in iteration=86, InterpolantAutomatonStates: 1967, 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, 0.5s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 7331 NumberOfCodeBlocks, 7331 NumberOfCodeBlocksAsserted, 87 NumberOfCheckSat, 7244 ConstructedInterpolants, 0 QuantifiedInterpolants, 33623 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 87 InterpolantComputations, 87 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown