/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:46:37,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:46:37,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:46:37,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:46:37,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:46:37,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:46:37,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:46:37,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:46:37,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:46:37,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:46:37,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:46:37,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:46:37,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:46:37,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:46:37,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:46:37,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:46:37,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:46:37,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:46:37,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:46:37,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:46:37,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:46:37,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:46:37,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:46:37,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:46:37,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 20:46:37,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:46:37,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:46:37,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:46:37,873 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 [2022-12-05 20:46:37,900 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:46:37,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:46:37,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:46:37,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:46:37,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:46:37,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:46:37,902 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:46:37,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:46:37,902 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:46:37,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:46:37,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:46:37,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:46:37,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:46:37,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:46:37,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:46:37,904 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:46:37,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:46:37,904 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:46:37,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:46:37,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:46:37,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:46:37,904 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:46:37,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:46:37,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:46:37,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:46:37,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:46:37,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:46:37,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:46:37,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:46:37,905 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:46:37,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:46:38,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:46:38,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:46:38,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:46:38,197 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:46:38,198 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:46:38,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-12-05 20:46:39,195 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:46:39,379 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:46:39,379 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-12-05 20:46:39,389 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf59beaab/e8dc918cd8e8427db840c37977c13413/FLAGc87b53ddc [2022-12-05 20:46:39,748 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf59beaab/e8dc918cd8e8427db840c37977c13413 [2022-12-05 20:46:39,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:46:39,751 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:46:39,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:46:39,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:46:39,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:46:39,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:46:39" (1/1) ... [2022-12-05 20:46:39,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d05a561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:39, skipping insertion in model container [2022-12-05 20:46:39,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:46:39" (1/1) ... [2022-12-05 20:46:39,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:46:39,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:46:39,884 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/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2022-12-05 20:46:39,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:46:39,972 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:46:39,981 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/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2022-12-05 20:46:40,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:46:40,061 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:46:40,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40 WrapperNode [2022-12-05 20:46:40,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:46:40,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:46:40,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:46:40,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:46:40,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (1/1) ... [2022-12-05 20:46:40,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (1/1) ... [2022-12-05 20:46:40,111 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-05 20:46:40,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:46:40,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:46:40,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:46:40,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:46:40,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (1/1) ... [2022-12-05 20:46:40,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (1/1) ... [2022-12-05 20:46:40,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (1/1) ... [2022-12-05 20:46:40,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (1/1) ... [2022-12-05 20:46:40,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (1/1) ... [2022-12-05 20:46:40,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (1/1) ... [2022-12-05 20:46:40,139 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (1/1) ... [2022-12-05 20:46:40,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (1/1) ... [2022-12-05 20:46:40,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:46:40,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:46:40,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:46:40,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:46:40,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (1/1) ... [2022-12-05 20:46:40,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:46:40,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:46:40,169 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) [2022-12-05 20:46:40,172 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 [2022-12-05 20:46:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:46:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:46:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:46:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:46:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:46:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 20:46:40,198 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 20:46:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:46:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:46:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:46:40,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:46:40,200 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:46:40,323 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:46:40,324 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:46:40,475 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:46:40,480 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:46:40,480 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:46:40,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:46:40 BoogieIcfgContainer [2022-12-05 20:46:40,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:46:40,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:46:40,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:46:40,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:46:40,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:46:39" (1/3) ... [2022-12-05 20:46:40,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449b96ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:46:40, skipping insertion in model container [2022-12-05 20:46:40,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:46:40" (2/3) ... [2022-12-05 20:46:40,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449b96ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:46:40, skipping insertion in model container [2022-12-05 20:46:40,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:46:40" (3/3) ... [2022-12-05 20:46:40,516 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2022-12-05 20:46:40,530 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:46:40,531 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-05 20:46:40,531 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:46:40,582 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 20:46:40,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 92 transitions, 192 flow [2022-12-05 20:46:40,637 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-12-05 20:46:40,638 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:46:40,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 2/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-12-05 20:46:40,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 92 transitions, 192 flow [2022-12-05 20:46:40,643 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 159 flow [2022-12-05 20:46:40,645 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:46:40,669 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 159 flow [2022-12-05 20:46:40,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 159 flow [2022-12-05 20:46:40,689 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2022-12-05 20:46:40,690 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:40,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 1/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-12-05 20:46:40,692 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 159 flow [2022-12-05 20:46:40,692 INFO L188 LiptonReduction]: Number of co-enabled transitions 850 [2022-12-05 20:46:43,935 INFO L203 LiptonReduction]: Total number of compositions: 64 [2022-12-05 20:46:43,950 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:46:43,954 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;@72dad330, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:46:43,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 20:46:43,956 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-05 20:46:43,956 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:43,956 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:43,957 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-05 20:46:43,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:46:43,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:43,960 INFO L85 PathProgramCache]: Analyzing trace with hash 303803, now seen corresponding path program 1 times [2022-12-05 20:46:43,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:43,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917558264] [2022-12-05 20:46:43,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:43,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:44,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:44,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:44,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917558264] [2022-12-05 20:46:44,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917558264] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:44,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:44,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:46:44,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516923583] [2022-12-05 20:46:44,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:44,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:46:44,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:44,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:46:44,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:46:44,086 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 24 [2022-12-05 20:46:44,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:46:44,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:44,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 24 [2022-12-05 20:46:44,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:44,121 INFO L130 PetriNetUnfolder]: 35/109 cut-off events. [2022-12-05 20:46:44,122 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:44,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 109 events. 35/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 402 event pairs, 35 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 189. Up to 85 conditions per place. [2022-12-05 20:46:44,123 INFO L137 encePairwiseOnDemand]: 23/24 looper letters, 14 selfloop transitions, 0 changer transitions 0/23 dead transitions. [2022-12-05 20:46:44,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 23 transitions, 77 flow [2022-12-05 20:46:44,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:46:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:46:44,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 33 transitions. [2022-12-05 20:46:44,134 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6875 [2022-12-05 20:46:44,135 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 51 flow. Second operand 2 states and 33 transitions. [2022-12-05 20:46:44,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 23 transitions, 77 flow [2022-12-05 20:46:44,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 76 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:46:44,139 INFO L231 Difference]: Finished difference. Result has 27 places, 23 transitions, 48 flow [2022-12-05 20:46:44,140 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=23} [2022-12-05 20:46:44,144 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2022-12-05 20:46:44,144 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 23 transitions, 48 flow [2022-12-05 20:46:44,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:46:44,145 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:44,145 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-05 20:46:44,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:46:44,146 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:46:44,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:44,146 INFO L85 PathProgramCache]: Analyzing trace with hash 291938524, now seen corresponding path program 1 times [2022-12-05 20:46:44,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:44,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971007477] [2022-12-05 20:46:44,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:44,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:44,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:44,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:44,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971007477] [2022-12-05 20:46:44,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971007477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:44,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:44,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:46:44,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223428277] [2022-12-05 20:46:44,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:44,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:46:44,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:44,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:46:44,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:46:44,284 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 24 [2022-12-05 20:46:44,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:46:44,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:44,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 24 [2022-12-05 20:46:44,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:44,340 INFO L130 PetriNetUnfolder]: 37/127 cut-off events. [2022-12-05 20:46:44,340 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:46:44,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 127 events. 37/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 450 event pairs, 27 based on Foata normal form. 6/130 useless extension candidates. Maximal degree in co-relation 223. Up to 66 conditions per place. [2022-12-05 20:46:44,345 INFO L137 encePairwiseOnDemand]: 19/24 looper letters, 17 selfloop transitions, 3 changer transitions 2/28 dead transitions. [2022-12-05 20:46:44,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 28 transitions, 100 flow [2022-12-05 20:46:44,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:46:44,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:46:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2022-12-05 20:46:44,348 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2022-12-05 20:46:44,348 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 48 flow. Second operand 3 states and 44 transitions. [2022-12-05 20:46:44,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 28 transitions, 100 flow [2022-12-05 20:46:44,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 100 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:46:44,349 INFO L231 Difference]: Finished difference. Result has 30 places, 21 transitions, 57 flow [2022-12-05 20:46:44,350 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2022-12-05 20:46:44,350 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2022-12-05 20:46:44,350 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 57 flow [2022-12-05 20:46:44,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:46:44,350 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:44,350 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:44,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:46:44,351 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:46:44,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:44,351 INFO L85 PathProgramCache]: Analyzing trace with hash 479781416, now seen corresponding path program 1 times [2022-12-05 20:46:44,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:44,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96763630] [2022-12-05 20:46:44,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:44,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:44,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:44,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:44,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96763630] [2022-12-05 20:46:44,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96763630] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:44,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:44,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 20:46:44,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059226036] [2022-12-05 20:46:44,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:44,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:46:44,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:44,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:46:44,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:46:44,506 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 24 [2022-12-05 20:46:44,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 57 flow. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:46:44,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:44,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 24 [2022-12-05 20:46:44,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:44,565 INFO L130 PetriNetUnfolder]: 34/105 cut-off events. [2022-12-05 20:46:44,565 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 20:46:44,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 105 events. 34/105 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 299 event pairs, 12 based on Foata normal form. 16/121 useless extension candidates. Maximal degree in co-relation 218. Up to 65 conditions per place. [2022-12-05 20:46:44,566 INFO L137 encePairwiseOnDemand]: 16/24 looper letters, 12 selfloop transitions, 6 changer transitions 7/26 dead transitions. [2022-12-05 20:46:44,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 115 flow [2022-12-05 20:46:44,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:46:44,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:46:44,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2022-12-05 20:46:44,570 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2022-12-05 20:46:44,570 INFO L175 Difference]: Start difference. First operand has 30 places, 21 transitions, 57 flow. Second operand 4 states and 40 transitions. [2022-12-05 20:46:44,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 115 flow [2022-12-05 20:46:44,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 109 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:46:44,571 INFO L231 Difference]: Finished difference. Result has 29 places, 16 transitions, 52 flow [2022-12-05 20:46:44,571 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=29, PETRI_TRANSITIONS=16} [2022-12-05 20:46:44,572 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2022-12-05 20:46:44,572 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 16 transitions, 52 flow [2022-12-05 20:46:44,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:46:44,573 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:44,573 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:44,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:46:44,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:46:44,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:44,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1934734142, now seen corresponding path program 1 times [2022-12-05 20:46:44,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:44,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776433156] [2022-12-05 20:46:44,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:44,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:44,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:44,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776433156] [2022-12-05 20:46:44,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776433156] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:44,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:44,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:46:44,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534065136] [2022-12-05 20:46:44,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:44,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:46:44,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:44,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:46:44,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:46:44,697 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 24 [2022-12-05 20:46:44,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 16 transitions, 52 flow. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 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) [2022-12-05 20:46:44,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:44,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 24 [2022-12-05 20:46:44,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:44,749 INFO L130 PetriNetUnfolder]: 13/48 cut-off events. [2022-12-05 20:46:44,749 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-05 20:46:44,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 48 events. 13/48 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 5 based on Foata normal form. 4/52 useless extension candidates. Maximal degree in co-relation 117. Up to 27 conditions per place. [2022-12-05 20:46:44,750 INFO L137 encePairwiseOnDemand]: 20/24 looper letters, 13 selfloop transitions, 4 changer transitions 2/20 dead transitions. [2022-12-05 20:46:44,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 102 flow [2022-12-05 20:46:44,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:46:44,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:46:44,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2022-12-05 20:46:44,752 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.34375 [2022-12-05 20:46:44,752 INFO L175 Difference]: Start difference. First operand has 29 places, 16 transitions, 52 flow. Second operand 4 states and 33 transitions. [2022-12-05 20:46:44,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 102 flow [2022-12-05 20:46:44,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 93 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:46:44,753 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 50 flow [2022-12-05 20:46:44,753 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2022-12-05 20:46:44,753 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, -3 predicate places. [2022-12-05 20:46:44,754 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 50 flow [2022-12-05 20:46:44,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 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) [2022-12-05 20:46:44,754 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:46:44,754 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:46:44,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:46:44,754 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:46:44,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:46:44,754 INFO L85 PathProgramCache]: Analyzing trace with hash 360363224, now seen corresponding path program 1 times [2022-12-05 20:46:44,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:46:44,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317597919] [2022-12-05 20:46:44,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:46:44,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:46:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:46:44,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:46:44,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:46:44,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317597919] [2022-12-05 20:46:44,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317597919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:46:44,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:46:44,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:46:44,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752765228] [2022-12-05 20:46:44,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:46:44,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:46:44,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:46:44,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:46:44,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:46:44,868 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 24 [2022-12-05 20:46:44,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:46:44,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:46:44,870 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 24 [2022-12-05 20:46:44,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:46:44,902 INFO L130 PetriNetUnfolder]: 7/33 cut-off events. [2022-12-05 20:46:44,902 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-05 20:46:44,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 33 events. 7/33 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 6/39 useless extension candidates. Maximal degree in co-relation 83. Up to 24 conditions per place. [2022-12-05 20:46:44,903 INFO L137 encePairwiseOnDemand]: 21/24 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2022-12-05 20:46:44,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 98 flow [2022-12-05 20:46:44,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:46:44,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:46:44,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2022-12-05 20:46:44,904 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2022-12-05 20:46:44,904 INFO L175 Difference]: Start difference. First operand has 24 places, 15 transitions, 50 flow. Second operand 4 states and 32 transitions. [2022-12-05 20:46:44,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 98 flow [2022-12-05 20:46:44,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 90 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:46:44,904 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2022-12-05 20:46:44,904 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2022-12-05 20:46:44,905 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, -4 predicate places. [2022-12-05 20:46:44,905 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2022-12-05 20:46:44,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:46:44,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-05 20:46:44,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-12-05 20:46:44,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-05 20:46:44,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:46:44,908 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-05 20:46:44,910 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:46:44,910 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:46:44,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:46:44 BasicIcfg [2022-12-05 20:46:44,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:46:44,912 INFO L158 Benchmark]: Toolchain (without parser) took 5161.56ms. Allocated memory was 166.7MB in the beginning and 200.3MB in the end (delta: 33.6MB). Free memory was 142.0MB in the beginning and 120.7MB in the end (delta: 21.3MB). Peak memory consumption was 55.2MB. Max. memory is 8.0GB. [2022-12-05 20:46:44,912 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:46:44,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.61ms. Allocated memory is still 166.7MB. Free memory was 141.7MB in the beginning and 122.5MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-05 20:46:44,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.77ms. Allocated memory is still 166.7MB. Free memory was 122.5MB in the beginning and 120.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:46:44,913 INFO L158 Benchmark]: Boogie Preprocessor took 29.41ms. Allocated memory is still 166.7MB. Free memory was 120.4MB in the beginning and 119.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:46:44,913 INFO L158 Benchmark]: RCFGBuilder took 339.34ms. Allocated memory is still 166.7MB. Free memory was 119.0MB in the beginning and 104.7MB in the end (delta: 14.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 20:46:44,914 INFO L158 Benchmark]: TraceAbstraction took 4408.25ms. Allocated memory was 166.7MB in the beginning and 200.3MB in the end (delta: 33.6MB). Free memory was 144.6MB in the beginning and 120.7MB in the end (delta: 23.8MB). Peak memory consumption was 56.9MB. Max. memory is 8.0GB. [2022-12-05 20:46:44,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 311.61ms. Allocated memory is still 166.7MB. Free memory was 141.7MB in the beginning and 122.5MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.77ms. Allocated memory is still 166.7MB. Free memory was 122.5MB in the beginning and 120.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.41ms. Allocated memory is still 166.7MB. Free memory was 120.4MB in the beginning and 119.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 339.34ms. Allocated memory is still 166.7MB. Free memory was 119.0MB in the beginning and 104.7MB in the end (delta: 14.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4408.25ms. Allocated memory was 166.7MB in the beginning and 200.3MB in the end (delta: 33.6MB). Free memory was 144.6MB in the beginning and 120.7MB in the end (delta: 23.8MB). Peak memory consumption was 56.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 81 PlacesBefore, 27 PlacesAfterwards, 78 TransitionsBefore, 24 TransitionsAfterwards, 850 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 22 ConcurrentYvCompositions, 0 ChoiceCompositions, 64 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1100, independent: 944, independent conditional: 944, independent unconditional: 0, dependent: 156, dependent conditional: 156, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1100, independent: 944, independent conditional: 0, independent unconditional: 944, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1100, independent: 944, independent conditional: 0, independent unconditional: 944, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1100, independent: 944, independent conditional: 0, independent unconditional: 944, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 619, independent: 570, independent conditional: 0, independent unconditional: 570, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 619, independent: 480, independent conditional: 0, independent unconditional: 480, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 139, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 199, independent: 124, independent conditional: 0, independent unconditional: 124, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1100, independent: 374, independent conditional: 0, independent unconditional: 374, dependent: 107, dependent conditional: 0, dependent unconditional: 107, unknown: 619, unknown conditional: 0, unknown unconditional: 619] , Statistics on independence cache: Total cache size (in pairs): 884, Positive cache size: 835, Positive conditional cache size: 0, Positive unconditional cache size: 835, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 3 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=2, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 247 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:46:44,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...