/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 22:04:12,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 22:04:12,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 22:04:12,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-12 22:04:12,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 22:04:12,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 22:04:12,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 22:04:12,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 22:04:13,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 22:04:13,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 22:04:13,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 22:04:13,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 22:04:13,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 22:04:13,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 22:04:13,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 22:04:13,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 22:04:13,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-12 22:04:13,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 22:04:13,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 22:04:13,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 22:04:13,054 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-SemanticLbe.epf [2022-12-12 22:04:13,085 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 22:04:13,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 22:04:13,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 22:04:13,087 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 22:04:13,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 22:04:13,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 22:04:13,088 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 22:04:13,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 22:04:13,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 22:04:13,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 22:04:13,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 22:04:13,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 22:04:13,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 22:04:13,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 22:04:13,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 22:04:13,091 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 22:04:13,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 22:04:13,091 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 22:04:13,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 22:04:13,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 22:04:13,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 22:04:13,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 22:04:13,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 22:04:13,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 22:04:13,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 22:04:13,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 22:04:13,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 22:04:13,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 22:04:13,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 22:04:13,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 22:04:13,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 22:04:13,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 22:04:13,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 22:04:13,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 22:04:13,421 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 22:04:13,422 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 22:04:13,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-12 22:04:14,624 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 22:04:14,851 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 22:04:14,851 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-12 22:04:14,861 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/894deaf63/cdfa5930a89046b79fd5348da529de69/FLAG859c835af [2022-12-12 22:04:14,875 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/894deaf63/cdfa5930a89046b79fd5348da529de69 [2022-12-12 22:04:14,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 22:04:14,878 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 22:04:14,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 22:04:14,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 22:04:14,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 22:04:14,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 10:04:14" (1/1) ... [2022-12-12 22:04:14,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce0e34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:14, skipping insertion in model container [2022-12-12 22:04:14,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 10:04:14" (1/1) ... [2022-12-12 22:04:14,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 22:04:14,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 22:04:15,093 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-12-12 22:04:15,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 22:04:15,264 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 22:04:15,276 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-12-12 22:04:15,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 22:04:15,357 INFO L208 MainTranslator]: Completed translation [2022-12-12 22:04:15,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15 WrapperNode [2022-12-12 22:04:15,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 22:04:15,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 22:04:15,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 22:04:15,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 22:04:15,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (1/1) ... [2022-12-12 22:04:15,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (1/1) ... [2022-12-12 22:04:15,411 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 139 [2022-12-12 22:04:15,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 22:04:15,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 22:04:15,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 22:04:15,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 22:04:15,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (1/1) ... [2022-12-12 22:04:15,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (1/1) ... [2022-12-12 22:04:15,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (1/1) ... [2022-12-12 22:04:15,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (1/1) ... [2022-12-12 22:04:15,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (1/1) ... [2022-12-12 22:04:15,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (1/1) ... [2022-12-12 22:04:15,444 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (1/1) ... [2022-12-12 22:04:15,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (1/1) ... [2022-12-12 22:04:15,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 22:04:15,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 22:04:15,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 22:04:15,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 22:04:15,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (1/1) ... [2022-12-12 22:04:15,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 22:04:15,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 22:04:15,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 22:04:15,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 22:04:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 22:04:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 22:04:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 22:04:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 22:04:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 22:04:15,520 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 22:04:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 22:04:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 22:04:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 22:04:15,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 22:04:15,522 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 22:04:15,648 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 22:04:15,649 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 22:04:15,911 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 22:04:15,919 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 22:04:15,919 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 22:04:15,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 10:04:15 BoogieIcfgContainer [2022-12-12 22:04:15,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 22:04:15,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 22:04:15,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 22:04:15,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 22:04:15,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 10:04:14" (1/3) ... [2022-12-12 22:04:15,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b9924d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 10:04:15, skipping insertion in model container [2022-12-12 22:04:15,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:04:15" (2/3) ... [2022-12-12 22:04:15,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b9924d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 10:04:15, skipping insertion in model container [2022-12-12 22:04:15,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 10:04:15" (3/3) ... [2022-12-12 22:04:15,931 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-12-12 22:04:15,948 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 22:04:15,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-12 22:04:15,949 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 22:04:16,060 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 22:04:16,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 162 transitions, 329 flow [2022-12-12 22:04:16,197 INFO L130 PetriNetUnfolder]: 8/164 cut-off events. [2022-12-12 22:04:16,197 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 22:04:16,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 164 events. 8/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 149 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 118. Up to 2 conditions per place. [2022-12-12 22:04:16,204 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 162 transitions, 329 flow [2022-12-12 22:04:16,212 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 160 transitions, 323 flow [2022-12-12 22:04:16,213 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 22:04:16,234 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 160 transitions, 323 flow [2022-12-12 22:04:16,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 160 transitions, 323 flow [2022-12-12 22:04:16,299 INFO L130 PetriNetUnfolder]: 8/160 cut-off events. [2022-12-12 22:04:16,299 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 22:04:16,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 160 events. 8/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 141 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 118. Up to 2 conditions per place. [2022-12-12 22:04:16,308 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 160 transitions, 323 flow [2022-12-12 22:04:16,308 INFO L226 LiptonReduction]: Number of co-enabled transitions 6570 [2022-12-12 22:04:23,841 INFO L241 LiptonReduction]: Total number of compositions: 149 [2022-12-12 22:04:23,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 22:04:23,860 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;@11251b33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 22:04:23,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 22:04:23,864 INFO L130 PetriNetUnfolder]: 1/12 cut-off events. [2022-12-12 22:04:23,864 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 22:04:23,865 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:23,865 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-12 22:04:23,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:23,870 INFO L85 PathProgramCache]: Analyzing trace with hash 20760731, now seen corresponding path program 1 times [2022-12-12 22:04:23,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:23,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699734959] [2022-12-12 22:04:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:23,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:24,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:24,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699734959] [2022-12-12 22:04:24,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699734959] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:24,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:24,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 22:04:24,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016992184] [2022-12-12 22:04:24,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:24,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 22:04:24,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:24,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 22:04:24,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 22:04:24,036 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 61 [2022-12-12 22:04:24,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 61 transitions, 125 flow. Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:24,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:24,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 61 [2022-12-12 22:04:24,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:24,172 INFO L130 PetriNetUnfolder]: 430/962 cut-off events. [2022-12-12 22:04:24,173 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 22:04:24,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1840 conditions, 962 events. 430/962 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5961 event pairs, 396 based on Foata normal form. 0/506 useless extension candidates. Maximal degree in co-relation 1831. Up to 874 conditions per place. [2022-12-12 22:04:24,179 INFO L137 encePairwiseOnDemand]: 58/61 looper letters, 45 selfloop transitions, 0 changer transitions 4/58 dead transitions. [2022-12-12 22:04:24,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 215 flow [2022-12-12 22:04:24,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 22:04:24,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 22:04:24,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 71 transitions. [2022-12-12 22:04:24,188 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5819672131147541 [2022-12-12 22:04:24,191 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 0 predicate places. [2022-12-12 22:04:24,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 58 transitions, 215 flow [2022-12-12 22:04:24,195 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 54 transitions, 201 flow [2022-12-12 22:04:24,196 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 54 transitions, 201 flow [2022-12-12 22:04:24,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:24,196 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:24,196 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 22:04:24,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 22:04:24,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:24,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:24,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1525135956, now seen corresponding path program 1 times [2022-12-12 22:04:24,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:24,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368779554] [2022-12-12 22:04:24,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:24,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:24,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:24,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368779554] [2022-12-12 22:04:24,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368779554] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:24,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:24,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 22:04:24,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702028038] [2022-12-12 22:04:24,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:24,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 22:04:24,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:24,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 22:04:24,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 22:04:24,436 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 61 [2022-12-12 22:04:24,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 54 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:24,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:24,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 61 [2022-12-12 22:04:24,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:24,629 INFO L130 PetriNetUnfolder]: 313/882 cut-off events. [2022-12-12 22:04:24,629 INFO L131 PetriNetUnfolder]: For 43/49 co-relation queries the response was YES. [2022-12-12 22:04:24,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2516 conditions, 882 events. 313/882 cut-off events. For 43/49 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5866 event pairs, 19 based on Foata normal form. 0/544 useless extension candidates. Maximal degree in co-relation 2504. Up to 810 conditions per place. [2022-12-12 22:04:24,634 INFO L137 encePairwiseOnDemand]: 38/61 looper letters, 46 selfloop transitions, 40 changer transitions 0/94 dead transitions. [2022-12-12 22:04:24,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 94 transitions, 531 flow [2022-12-12 22:04:24,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 22:04:24,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 22:04:24,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2022-12-12 22:04:24,636 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4360655737704918 [2022-12-12 22:04:24,637 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2022-12-12 22:04:24,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 94 transitions, 531 flow [2022-12-12 22:04:24,641 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 94 transitions, 531 flow [2022-12-12 22:04:24,641 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 94 transitions, 531 flow [2022-12-12 22:04:24,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:24,641 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:24,642 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:04:24,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 22:04:24,642 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:24,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:24,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1071798836, now seen corresponding path program 1 times [2022-12-12 22:04:24,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:24,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894303790] [2022-12-12 22:04:24,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:24,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:24,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:24,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894303790] [2022-12-12 22:04:24,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894303790] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:24,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:24,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 22:04:24,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128328434] [2022-12-12 22:04:24,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:24,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 22:04:24,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:24,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 22:04:24,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 22:04:24,771 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 61 [2022-12-12 22:04:24,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 94 transitions, 531 flow. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:24,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:24,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 61 [2022-12-12 22:04:24,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:25,175 INFO L130 PetriNetUnfolder]: 322/910 cut-off events. [2022-12-12 22:04:25,175 INFO L131 PetriNetUnfolder]: For 110/156 co-relation queries the response was YES. [2022-12-12 22:04:25,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3485 conditions, 910 events. 322/910 cut-off events. For 110/156 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 6228 event pairs, 55 based on Foata normal form. 0/593 useless extension candidates. Maximal degree in co-relation 3470. Up to 851 conditions per place. [2022-12-12 22:04:25,181 INFO L137 encePairwiseOnDemand]: 35/61 looper letters, 80 selfloop transitions, 87 changer transitions 0/175 dead transitions. [2022-12-12 22:04:25,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 175 transitions, 1347 flow [2022-12-12 22:04:25,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-12 22:04:25,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-12 22:04:25,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 278 transitions. [2022-12-12 22:04:25,183 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3797814207650273 [2022-12-12 22:04:25,187 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 12 predicate places. [2022-12-12 22:04:25,188 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 175 transitions, 1347 flow [2022-12-12 22:04:25,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 175 transitions, 1347 flow [2022-12-12 22:04:25,194 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 175 transitions, 1347 flow [2022-12-12 22:04:25,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:25,194 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:25,195 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:04:25,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 22:04:25,195 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:25,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:25,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1414739105, now seen corresponding path program 1 times [2022-12-12 22:04:25,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:25,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036682748] [2022-12-12 22:04:25,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:25,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:25,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:25,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:25,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036682748] [2022-12-12 22:04:25,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036682748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:25,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:25,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 22:04:25,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191092198] [2022-12-12 22:04:25,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:25,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 22:04:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:25,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 22:04:25,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 22:04:25,292 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 61 [2022-12-12 22:04:25,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 175 transitions, 1347 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:25,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:25,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 61 [2022-12-12 22:04:25,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:25,458 INFO L130 PetriNetUnfolder]: 270/666 cut-off events. [2022-12-12 22:04:25,458 INFO L131 PetriNetUnfolder]: For 391/397 co-relation queries the response was YES. [2022-12-12 22:04:25,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3050 conditions, 666 events. 270/666 cut-off events. For 391/397 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3696 event pairs, 19 based on Foata normal form. 41/479 useless extension candidates. Maximal degree in co-relation 3032. Up to 575 conditions per place. [2022-12-12 22:04:25,462 INFO L137 encePairwiseOnDemand]: 46/61 looper letters, 125 selfloop transitions, 25 changer transitions 19/174 dead transitions. [2022-12-12 22:04:25,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 174 transitions, 1659 flow [2022-12-12 22:04:25,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 22:04:25,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 22:04:25,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2022-12-12 22:04:25,464 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4808743169398907 [2022-12-12 22:04:25,465 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 13 predicate places. [2022-12-12 22:04:25,465 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 174 transitions, 1659 flow [2022-12-12 22:04:25,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 155 transitions, 1473 flow [2022-12-12 22:04:25,469 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 155 transitions, 1473 flow [2022-12-12 22:04:25,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:25,470 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:25,470 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:04:25,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 22:04:25,470 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:25,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:25,470 INFO L85 PathProgramCache]: Analyzing trace with hash 793674317, now seen corresponding path program 1 times [2022-12-12 22:04:25,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:25,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671654574] [2022-12-12 22:04:25,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:25,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:25,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:25,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:25,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671654574] [2022-12-12 22:04:25,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671654574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:25,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:25,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 22:04:25,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588424606] [2022-12-12 22:04:25,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:25,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 22:04:25,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:25,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 22:04:25,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-12 22:04:25,629 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 61 [2022-12-12 22:04:25,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 155 transitions, 1473 flow. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:25,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:25,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 61 [2022-12-12 22:04:25,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:25,884 INFO L130 PetriNetUnfolder]: 265/662 cut-off events. [2022-12-12 22:04:25,884 INFO L131 PetriNetUnfolder]: For 855/855 co-relation queries the response was YES. [2022-12-12 22:04:25,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3568 conditions, 662 events. 265/662 cut-off events. For 855/855 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3624 event pairs, 29 based on Foata normal form. 42/490 useless extension candidates. Maximal degree in co-relation 3547. Up to 558 conditions per place. [2022-12-12 22:04:25,889 INFO L137 encePairwiseOnDemand]: 36/61 looper letters, 92 selfloop transitions, 48 changer transitions 39/187 dead transitions. [2022-12-12 22:04:25,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 187 transitions, 2113 flow [2022-12-12 22:04:25,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 22:04:25,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 22:04:25,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2022-12-12 22:04:25,891 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3524590163934426 [2022-12-12 22:04:25,891 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 20 predicate places. [2022-12-12 22:04:25,892 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 187 transitions, 2113 flow [2022-12-12 22:04:25,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 148 transitions, 1659 flow [2022-12-12 22:04:25,896 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 148 transitions, 1659 flow [2022-12-12 22:04:25,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:25,896 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:25,897 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:04:25,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 22:04:25,897 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:25,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:25,897 INFO L85 PathProgramCache]: Analyzing trace with hash -143337721, now seen corresponding path program 1 times [2022-12-12 22:04:25,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:25,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167813243] [2022-12-12 22:04:25,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:25,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:25,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:25,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167813243] [2022-12-12 22:04:25,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167813243] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:25,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:25,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 22:04:25,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619487910] [2022-12-12 22:04:25,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:25,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 22:04:25,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:25,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 22:04:25,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 22:04:25,989 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 61 [2022-12-12 22:04:25,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 148 transitions, 1659 flow. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:25,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:25,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 61 [2022-12-12 22:04:25,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:26,189 INFO L130 PetriNetUnfolder]: 226/603 cut-off events. [2022-12-12 22:04:26,189 INFO L131 PetriNetUnfolder]: For 1282/1282 co-relation queries the response was YES. [2022-12-12 22:04:26,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3725 conditions, 603 events. 226/603 cut-off events. For 1282/1282 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3425 event pairs, 8 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 3701. Up to 501 conditions per place. [2022-12-12 22:04:26,194 INFO L137 encePairwiseOnDemand]: 43/61 looper letters, 111 selfloop transitions, 41 changer transitions 2/168 dead transitions. [2022-12-12 22:04:26,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 168 transitions, 2207 flow [2022-12-12 22:04:26,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 22:04:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 22:04:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2022-12-12 22:04:26,195 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36065573770491804 [2022-12-12 22:04:26,196 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 20 predicate places. [2022-12-12 22:04:26,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 168 transitions, 2207 flow [2022-12-12 22:04:26,200 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 166 transitions, 2179 flow [2022-12-12 22:04:26,201 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 166 transitions, 2179 flow [2022-12-12 22:04:26,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:26,201 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:26,201 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:04:26,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 22:04:26,201 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:26,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:26,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2045777387, now seen corresponding path program 1 times [2022-12-12 22:04:26,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:26,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619617859] [2022-12-12 22:04:26,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:26,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:26,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:26,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:26,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619617859] [2022-12-12 22:04:26,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619617859] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:26,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:26,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 22:04:26,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490468845] [2022-12-12 22:04:26,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:26,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 22:04:26,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:26,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 22:04:26,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 22:04:26,317 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 61 [2022-12-12 22:04:26,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 166 transitions, 2179 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:26,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:26,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 61 [2022-12-12 22:04:26,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:26,475 INFO L130 PetriNetUnfolder]: 196/537 cut-off events. [2022-12-12 22:04:26,475 INFO L131 PetriNetUnfolder]: For 1615/1615 co-relation queries the response was YES. [2022-12-12 22:04:26,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3757 conditions, 537 events. 196/537 cut-off events. For 1615/1615 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2980 event pairs, 9 based on Foata normal form. 29/409 useless extension candidates. Maximal degree in co-relation 3730. Up to 441 conditions per place. [2022-12-12 22:04:26,479 INFO L137 encePairwiseOnDemand]: 37/61 looper letters, 96 selfloop transitions, 14 changer transitions 20/138 dead transitions. [2022-12-12 22:04:26,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 138 transitions, 2051 flow [2022-12-12 22:04:26,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 22:04:26,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 22:04:26,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 128 transitions. [2022-12-12 22:04:26,480 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.2997658079625293 [2022-12-12 22:04:26,481 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 24 predicate places. [2022-12-12 22:04:26,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 138 transitions, 2051 flow [2022-12-12 22:04:26,484 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 118 transitions, 1735 flow [2022-12-12 22:04:26,485 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 118 transitions, 1735 flow [2022-12-12 22:04:26,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:26,485 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:26,485 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:04:26,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 22:04:26,485 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:26,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:26,486 INFO L85 PathProgramCache]: Analyzing trace with hash -308589465, now seen corresponding path program 1 times [2022-12-12 22:04:26,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:26,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852102451] [2022-12-12 22:04:26,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:26,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:26,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:26,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:26,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852102451] [2022-12-12 22:04:26,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852102451] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:26,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:26,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-12 22:04:26,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661835780] [2022-12-12 22:04:26,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:26,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 22:04:26,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:26,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 22:04:26,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-12 22:04:26,639 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 61 [2022-12-12 22:04:26,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 118 transitions, 1735 flow. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:26,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:26,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 61 [2022-12-12 22:04:26,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:26,740 INFO L130 PetriNetUnfolder]: 179/441 cut-off events. [2022-12-12 22:04:26,740 INFO L131 PetriNetUnfolder]: For 1092/1092 co-relation queries the response was YES. [2022-12-12 22:04:26,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3483 conditions, 441 events. 179/441 cut-off events. For 1092/1092 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2107 event pairs, 24 based on Foata normal form. 4/324 useless extension candidates. Maximal degree in co-relation 3453. Up to 359 conditions per place. [2022-12-12 22:04:26,744 INFO L137 encePairwiseOnDemand]: 56/61 looper letters, 105 selfloop transitions, 12 changer transitions 9/132 dead transitions. [2022-12-12 22:04:26,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 132 transitions, 2163 flow [2022-12-12 22:04:26,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 22:04:26,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 22:04:26,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2022-12-12 22:04:26,745 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.25 [2022-12-12 22:04:26,746 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2022-12-12 22:04:26,746 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 132 transitions, 2163 flow [2022-12-12 22:04:26,750 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 123 transitions, 2001 flow [2022-12-12 22:04:26,750 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 123 transitions, 2001 flow [2022-12-12 22:04:26,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:26,751 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:26,751 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:04:26,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 22:04:26,751 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:26,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:26,752 INFO L85 PathProgramCache]: Analyzing trace with hash -247847286, now seen corresponding path program 1 times [2022-12-12 22:04:26,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:26,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042289042] [2022-12-12 22:04:26,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:26,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:26,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:26,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:26,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042289042] [2022-12-12 22:04:26,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042289042] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:26,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:26,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 22:04:26,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919811312] [2022-12-12 22:04:26,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:26,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 22:04:26,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:26,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 22:04:26,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-12 22:04:26,850 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 61 [2022-12-12 22:04:26,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 123 transitions, 2001 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:26,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:26,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 61 [2022-12-12 22:04:26,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:26,983 INFO L130 PetriNetUnfolder]: 157/392 cut-off events. [2022-12-12 22:04:26,983 INFO L131 PetriNetUnfolder]: For 1357/1357 co-relation queries the response was YES. [2022-12-12 22:04:26,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3401 conditions, 392 events. 157/392 cut-off events. For 1357/1357 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1786 event pairs, 19 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 3368. Up to 317 conditions per place. [2022-12-12 22:04:26,992 INFO L137 encePairwiseOnDemand]: 55/61 looper letters, 102 selfloop transitions, 13 changer transitions 0/133 dead transitions. [2022-12-12 22:04:26,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 133 transitions, 2411 flow [2022-12-12 22:04:26,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-12 22:04:26,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-12 22:04:26,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 118 transitions. [2022-12-12 22:04:26,994 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.24180327868852458 [2022-12-12 22:04:26,994 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 13 predicate places. [2022-12-12 22:04:26,995 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 133 transitions, 2411 flow [2022-12-12 22:04:26,999 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 133 transitions, 2411 flow [2022-12-12 22:04:26,999 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 133 transitions, 2411 flow [2022-12-12 22:04:26,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:26,999 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:26,999 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:04:27,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 22:04:27,000 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:27,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:27,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2128774528, now seen corresponding path program 1 times [2022-12-12 22:04:27,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:27,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017757825] [2022-12-12 22:04:27,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:27,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:27,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:27,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017757825] [2022-12-12 22:04:27,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017757825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:27,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:27,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 22:04:27,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423828505] [2022-12-12 22:04:27,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:27,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 22:04:27,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:27,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 22:04:27,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 22:04:27,130 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 61 [2022-12-12 22:04:27,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 133 transitions, 2411 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:27,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:27,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 61 [2022-12-12 22:04:27,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:27,429 INFO L130 PetriNetUnfolder]: 139/354 cut-off events. [2022-12-12 22:04:27,430 INFO L131 PetriNetUnfolder]: For 1766/1766 co-relation queries the response was YES. [2022-12-12 22:04:27,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3348 conditions, 354 events. 139/354 cut-off events. For 1766/1766 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1561 event pairs, 17 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 3312. Up to 285 conditions per place. [2022-12-12 22:04:27,432 INFO L137 encePairwiseOnDemand]: 53/61 looper letters, 112 selfloop transitions, 19 changer transitions 0/149 dead transitions. [2022-12-12 22:04:27,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 149 transitions, 2993 flow [2022-12-12 22:04:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-12 22:04:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-12 22:04:27,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 196 transitions. [2022-12-12 22:04:27,434 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.22950819672131148 [2022-12-12 22:04:27,435 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 25 predicate places. [2022-12-12 22:04:27,435 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 149 transitions, 2993 flow [2022-12-12 22:04:27,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 149 transitions, 2993 flow [2022-12-12 22:04:27,441 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 149 transitions, 2993 flow [2022-12-12 22:04:27,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:27,441 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:27,441 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:04:27,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 22:04:27,441 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:27,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:27,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1347683839, now seen corresponding path program 1 times [2022-12-12 22:04:27,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:27,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757399035] [2022-12-12 22:04:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:27,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:27,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:27,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:27,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757399035] [2022-12-12 22:04:27,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757399035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:27,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:27,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 22:04:27,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175094590] [2022-12-12 22:04:27,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:27,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 22:04:27,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:27,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 22:04:27,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 22:04:27,577 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 61 [2022-12-12 22:04:27,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 149 transitions, 2993 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:27,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:27,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 61 [2022-12-12 22:04:27,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:27,688 INFO L130 PetriNetUnfolder]: 135/354 cut-off events. [2022-12-12 22:04:27,688 INFO L131 PetriNetUnfolder]: For 2160/2160 co-relation queries the response was YES. [2022-12-12 22:04:27,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3661 conditions, 354 events. 135/354 cut-off events. For 2160/2160 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1583 event pairs, 13 based on Foata normal form. 10/296 useless extension candidates. Maximal degree in co-relation 3622. Up to 286 conditions per place. [2022-12-12 22:04:27,690 INFO L137 encePairwiseOnDemand]: 56/61 looper letters, 80 selfloop transitions, 17 changer transitions 54/156 dead transitions. [2022-12-12 22:04:27,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 156 transitions, 3403 flow [2022-12-12 22:04:27,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 22:04:27,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 22:04:27,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2022-12-12 22:04:27,691 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3483606557377049 [2022-12-12 22:04:27,692 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 28 predicate places. [2022-12-12 22:04:27,692 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 156 transitions, 3403 flow [2022-12-12 22:04:27,694 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 102 transitions, 2265 flow [2022-12-12 22:04:27,694 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 102 transitions, 2265 flow [2022-12-12 22:04:27,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:27,694 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:04:27,694 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:04:27,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 22:04:27,695 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-12 22:04:27,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:04:27,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1034705661, now seen corresponding path program 1 times [2022-12-12 22:04:27,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:04:27,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828646517] [2022-12-12 22:04:27,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:04:27,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:04:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 22:04:27,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 22:04:27,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 22:04:27,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828646517] [2022-12-12 22:04:27,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828646517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 22:04:27,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 22:04:27,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 22:04:27,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178046647] [2022-12-12 22:04:27,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 22:04:27,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 22:04:27,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 22:04:27,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 22:04:27,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 22:04:27,925 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 61 [2022-12-12 22:04:27,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 102 transitions, 2265 flow. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:27,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 22:04:27,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 61 [2022-12-12 22:04:27,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 22:04:27,971 INFO L130 PetriNetUnfolder]: 22/93 cut-off events. [2022-12-12 22:04:27,971 INFO L131 PetriNetUnfolder]: For 1161/1161 co-relation queries the response was YES. [2022-12-12 22:04:27,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 93 events. 22/93 cut-off events. For 1161/1161 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 249 event pairs, 0 based on Foata normal form. 15/108 useless extension candidates. Maximal degree in co-relation 985. Up to 78 conditions per place. [2022-12-12 22:04:27,972 INFO L137 encePairwiseOnDemand]: 58/61 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2022-12-12 22:04:27,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 74 transitions, 1747 flow [2022-12-12 22:04:27,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 22:04:27,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 22:04:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2022-12-12 22:04:27,973 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.1885245901639344 [2022-12-12 22:04:27,973 INFO L295 CegarLoopForPetriNet]: 62 programPoint places, 19 predicate places. [2022-12-12 22:04:27,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 74 transitions, 1747 flow [2022-12-12 22:04:27,973 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 22:04:27,973 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 22:04:27,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 22:04:27,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-12-12 22:04:27,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-12 22:04:27,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-12-12 22:04:27,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2022-12-12 22:04:27,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2022-12-12 22:04:27,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-12 22:04:27,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-12 22:04:27,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-12 22:04:27,977 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 22:04:27,981 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 22:04:27,981 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 22:04:27,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 10:04:27 BasicIcfg [2022-12-12 22:04:27,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 22:04:27,984 INFO L158 Benchmark]: Toolchain (without parser) took 13106.20ms. Allocated memory was 185.6MB in the beginning and 395.3MB in the end (delta: 209.7MB). Free memory was 160.7MB in the beginning and 323.6MB in the end (delta: -162.9MB). Peak memory consumption was 47.9MB. Max. memory is 8.0GB. [2022-12-12 22:04:27,984 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 185.6MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 22:04:27,985 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.34ms. Allocated memory is still 185.6MB. Free memory was 160.7MB in the beginning and 140.8MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-12 22:04:27,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.60ms. Allocated memory is still 185.6MB. Free memory was 140.3MB in the beginning and 138.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 22:04:27,985 INFO L158 Benchmark]: Boogie Preprocessor took 36.51ms. Allocated memory is still 185.6MB. Free memory was 138.2MB in the beginning and 136.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 22:04:27,985 INFO L158 Benchmark]: RCFGBuilder took 472.47ms. Allocated memory is still 185.6MB. Free memory was 136.6MB in the beginning and 118.8MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-12 22:04:27,986 INFO L158 Benchmark]: TraceAbstraction took 12060.11ms. Allocated memory was 185.6MB in the beginning and 395.3MB in the end (delta: 209.7MB). Free memory was 117.8MB in the beginning and 323.6MB in the end (delta: -205.8MB). Peak memory consumption was 4.9MB. Max. memory is 8.0GB. [2022-12-12 22:04:27,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 185.6MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 479.34ms. Allocated memory is still 185.6MB. Free memory was 160.7MB in the beginning and 140.8MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.60ms. Allocated memory is still 185.6MB. Free memory was 140.3MB in the beginning and 138.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.51ms. Allocated memory is still 185.6MB. Free memory was 138.2MB in the beginning and 136.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 472.47ms. Allocated memory is still 185.6MB. Free memory was 136.6MB in the beginning and 118.8MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 12060.11ms. Allocated memory was 185.6MB in the beginning and 395.3MB in the end (delta: 209.7MB). Free memory was 117.8MB in the beginning and 323.6MB in the end (delta: -205.8MB). Peak memory consumption was 4.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5s, 156 PlacesBefore, 62 PlacesAfterwards, 160 TransitionsBefore, 61 TransitionsAfterwards, 6570 CoEnabledTransitionPairs, 5 FixpointIterations, 0 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 40 TrivialYvCompositions, 84 ConcurrentYvCompositions, 10 ChoiceCompositions, 149 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10876, independent: 10405, independent conditional: 10405, independent unconditional: 0, dependent: 471, dependent conditional: 471, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10876, independent: 10405, independent conditional: 0, independent unconditional: 10405, dependent: 471, dependent conditional: 0, dependent unconditional: 471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10876, independent: 10405, independent conditional: 0, independent unconditional: 10405, dependent: 471, dependent conditional: 0, dependent unconditional: 471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10876, independent: 10405, independent conditional: 0, independent unconditional: 10405, dependent: 471, dependent conditional: 0, dependent unconditional: 471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5885, independent: 5783, independent conditional: 0, independent unconditional: 5783, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5885, independent: 5589, independent conditional: 0, independent unconditional: 5589, dependent: 296, dependent conditional: 0, dependent unconditional: 296, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 296, independent: 194, independent conditional: 0, independent unconditional: 194, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 406, independent: 179, independent conditional: 0, independent unconditional: 179, dependent: 227, dependent conditional: 0, dependent unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10876, independent: 4622, independent conditional: 0, independent unconditional: 4622, dependent: 369, dependent conditional: 0, dependent unconditional: 369, unknown: 5885, unknown conditional: 0, unknown unconditional: 5885] , Statistics on independence cache: Total cache size (in pairs): 17365, Positive cache size: 17263, Positive conditional cache size: 0, Positive unconditional cache size: 17263, Negative cache size: 102, Negative conditional cache size: 0, Negative unconditional cache size: 102, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 223 locations, 7 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: 11.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 695 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 695 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1859 IncrementalHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 29 mSDtfsCounter, 1859 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2993occurred in iteration=10, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 4045 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 677 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 22:04:28,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...