./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:26:40,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:26:40,189 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 14:26:40,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:26:40,193 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:26:40,212 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:26:40,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:26:40,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:26:40,213 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:26:40,213 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:26:40,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:26:40,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:26:40,214 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:26:40,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:26:40,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:26:40,214 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:26:40,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:26:40,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:26:40,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:26:40,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:26:40,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:26:40,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:26:40,215 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 14:26:40,215 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 14:26:40,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:26:40,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:26:40,215 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:26:40,215 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:26:40,215 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:26:40,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:26:40,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:26:40,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:26:40,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:26:40,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:26:40,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:26:40,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:26:40,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:26:40,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:26:40,216 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:26:40,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:26:40,216 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:26:40,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:26:40,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:26:40,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:26:40,217 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:26:40,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:26:40,217 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2024-12-02 14:26:40,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:26:40,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:26:40,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:26:40,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:26:40,424 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:26:40,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2024-12-02 14:26:43,088 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/data/546a325aa/b15c402d9da24c248df97cb05e2ceb0c/FLAG8d38f53a0 [2024-12-02 14:26:43,313 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:26:43,314 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2024-12-02 14:26:43,328 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/data/546a325aa/b15c402d9da24c248df97cb05e2ceb0c/FLAG8d38f53a0 [2024-12-02 14:26:43,633 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/data/546a325aa/b15c402d9da24c248df97cb05e2ceb0c [2024-12-02 14:26:43,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:26:43,636 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:26:43,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:26:43,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:26:43,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:26:43,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:26:43" (1/1) ... [2024-12-02 14:26:43,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74cec40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:43, skipping insertion in model container [2024-12-02 14:26:43,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:26:43" (1/1) ... [2024-12-02 14:26:43,677 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:26:44,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:26:44,052 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:26:44,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:26:44,164 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:26:44,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44 WrapperNode [2024-12-02 14:26:44,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:26:44,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:26:44,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:26:44,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:26:44,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,217 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 553 [2024-12-02 14:26:44,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:26:44,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:26:44,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:26:44,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:26:44,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,260 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,262 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,267 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:26:44,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:26:44,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:26:44,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:26:44,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (1/1) ... [2024-12-02 14:26:44,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:26:44,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:26:44,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:26:44,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f8acd9e-e43e-4543-8903-7b877d4ca538/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:26:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 14:26:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-02 14:26:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-12-02 14:26:44,328 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-12-02 14:26:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 14:26:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 14:26:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 14:26:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-12-02 14:26:44,328 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-12-02 14:26:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 14:26:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 14:26:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 14:26:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:26:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-02 14:26:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-12-02 14:26:44,328 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-12-02 14:26:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 14:26:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:26:44,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:26:44,330 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 14:26:44,471 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:26:44,473 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:26:45,228 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 14:26:45,229 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:26:45,271 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:26:45,271 INFO L312 CfgBuilder]: Removed 18 assume(true) statements. [2024-12-02 14:26:45,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:26:45 BoogieIcfgContainer [2024-12-02 14:26:45,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:26:45,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:26:45,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:26:45,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:26:45,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:26:43" (1/3) ... [2024-12-02 14:26:45,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba1cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:26:45, skipping insertion in model container [2024-12-02 14:26:45,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:26:44" (2/3) ... [2024-12-02 14:26:45,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba1cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:26:45, skipping insertion in model container [2024-12-02 14:26:45,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:26:45" (3/3) ... [2024-12-02 14:26:45,281 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2024-12-02 14:26:45,295 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:26:45,296 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_85-list2_racefree.i that has 4 procedures, 560 locations, 1 initial locations, 18 loop locations, and 37 error locations. [2024-12-02 14:26:45,297 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 14:26:45,529 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-12-02 14:26:45,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 569 places, 610 transitions, 1259 flow [2024-12-02 14:26:46,208 INFO L124 PetriNetUnfolderBase]: 171/1787 cut-off events. [2024-12-02 14:26:46,210 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-12-02 14:26:46,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1841 conditions, 1787 events. 171/1787 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 12527 event pairs, 0 based on Foata normal form. 0/1504 useless extension candidates. Maximal degree in co-relation 912. Up to 16 conditions per place. [2024-12-02 14:26:46,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 569 places, 610 transitions, 1259 flow [2024-12-02 14:26:46,259 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 569 places, 610 transitions, 1259 flow [2024-12-02 14:26:46,265 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:26:46,274 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5abb7c58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:26:46,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-12-02 14:26:46,279 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 14:26:46,280 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2024-12-02 14:26:46,280 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:26:46,280 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:26:46,280 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:26:46,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-12-02 14:26:46,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:26:46,285 INFO L85 PathProgramCache]: Analyzing trace with hash 178520205, now seen corresponding path program 1 times [2024-12-02 14:26:46,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:26:46,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173755016] [2024-12-02 14:26:46,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:26:46,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:26:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:26:46,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:26:46,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:26:46,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173755016] [2024-12-02 14:26:46,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173755016] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:26:46,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:26:46,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:26:46,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460081490] [2024-12-02 14:26:46,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:26:46,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:26:46,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:26:46,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:26:46,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:26:46,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 532 out of 610 [2024-12-02 14:26:46,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 610 transitions, 1259 flow. Second operand has 3 states, 3 states have (on average 533.3333333333334) internal successors, (1600), 3 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:26:46,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:26:46,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 532 of 610 [2024-12-02 14:26:46,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:26:53,564 INFO L124 PetriNetUnfolderBase]: 5033/34179 cut-off events. [2024-12-02 14:26:53,564 INFO L125 PetriNetUnfolderBase]: For 2744/2744 co-relation queries the response was YES. [2024-12-02 14:26:53,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41828 conditions, 34179 events. 5033/34179 cut-off events. For 2744/2744 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 472492 event pairs, 4102 based on Foata normal form. 6688/37887 useless extension candidates. Maximal degree in co-relation 27855. Up to 6610 conditions per place. [2024-12-02 14:26:53,891 INFO L140 encePairwiseOnDemand]: 575/610 looper letters, 41 selfloop transitions, 2 changer transitions 0/573 dead transitions. [2024-12-02 14:26:53,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 573 transitions, 1271 flow [2024-12-02 14:26:53,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:26:53,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:26:53,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1672 transitions. [2024-12-02 14:26:53,912 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9136612021857924 [2024-12-02 14:26:53,914 INFO L175 Difference]: Start difference. First operand has 569 places, 610 transitions, 1259 flow. Second operand 3 states and 1672 transitions. [2024-12-02 14:26:53,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 573 transitions, 1271 flow [2024-12-02 14:26:53,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 566 places, 573 transitions, 1271 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 14:26:53,940 INFO L231 Difference]: Finished difference. Result has 566 places, 573 transitions, 1189 flow [2024-12-02 14:26:53,944 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=610, PETRI_DIFFERENCE_MINUEND_FLOW=1185, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1189, PETRI_PLACES=566, PETRI_TRANSITIONS=573} [2024-12-02 14:26:53,947 INFO L279 CegarLoopForPetriNet]: 569 programPoint places, -3 predicate places. [2024-12-02 14:26:53,947 INFO L471 AbstractCegarLoop]: Abstraction has has 566 places, 573 transitions, 1189 flow [2024-12-02 14:26:53,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 533.3333333333334) internal successors, (1600), 3 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:26:53,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:26:53,948 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:26:53,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:26:53,949 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-12-02 14:26:53,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:26:53,950 INFO L85 PathProgramCache]: Analyzing trace with hash 572713422, now seen corresponding path program 1 times [2024-12-02 14:26:53,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:26:53,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310364591] [2024-12-02 14:26:53,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:26:53,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:26:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:26:54,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:26:54,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:26:54,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310364591] [2024-12-02 14:26:54,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310364591] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:26:54,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:26:54,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:26:54,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278964647] [2024-12-02 14:26:54,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:26:54,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:26:54,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:26:54,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:26:54,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:26:54,055 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 532 out of 610 [2024-12-02 14:26:54,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 573 transitions, 1189 flow. Second operand has 3 states, 3 states have (on average 533.0) internal successors, (1599), 3 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:26:54,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:26:54,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 532 of 610 [2024-12-02 14:26:54,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:27:00,219 INFO L124 PetriNetUnfolderBase]: 3685/30909 cut-off events. [2024-12-02 14:27:00,219 INFO L125 PetriNetUnfolderBase]: For 3377/3377 co-relation queries the response was YES. [2024-12-02 14:27:00,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37241 conditions, 30909 events. 3685/30909 cut-off events. For 3377/3377 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 415083 event pairs, 2942 based on Foata normal form. 0/28036 useless extension candidates. Maximal degree in co-relation 37187. Up to 5046 conditions per place. [2024-12-02 14:27:00,644 INFO L140 encePairwiseOnDemand]: 606/610 looper letters, 40 selfloop transitions, 1 changer transitions 0/570 dead transitions. [2024-12-02 14:27:00,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 570 transitions, 1265 flow [2024-12-02 14:27:00,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:27:00,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:27:00,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1640 transitions. [2024-12-02 14:27:00,648 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8961748633879781 [2024-12-02 14:27:00,648 INFO L175 Difference]: Start difference. First operand has 566 places, 573 transitions, 1189 flow. Second operand 3 states and 1640 transitions. [2024-12-02 14:27:00,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 570 transitions, 1265 flow [2024-12-02 14:27:00,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 570 transitions, 1261 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 14:27:00,671 INFO L231 Difference]: Finished difference. Result has 563 places, 570 transitions, 1181 flow [2024-12-02 14:27:00,671 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=610, PETRI_DIFFERENCE_MINUEND_FLOW=1179, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1181, PETRI_PLACES=563, PETRI_TRANSITIONS=570} [2024-12-02 14:27:00,672 INFO L279 CegarLoopForPetriNet]: 569 programPoint places, -6 predicate places. [2024-12-02 14:27:00,672 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 570 transitions, 1181 flow [2024-12-02 14:27:00,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 533.0) internal successors, (1599), 3 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:27:00,673 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:27:00,673 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:27:00,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:27:00,673 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-12-02 14:27:00,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:27:00,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1558481161, now seen corresponding path program 1 times [2024-12-02 14:27:00,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:27:00,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250044230] [2024-12-02 14:27:00,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:27:00,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:27:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:27:01,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:27:01,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:27:01,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250044230] [2024-12-02 14:27:01,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250044230] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:27:01,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:27:01,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:27:01,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809992004] [2024-12-02 14:27:01,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:27:01,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 14:27:01,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:27:01,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 14:27:01,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:27:01,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 610 [2024-12-02 14:27:01,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 570 transitions, 1181 flow. Second operand has 6 states, 6 states have (on average 421.3333333333333) internal successors, (2528), 6 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:27:01,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:27:01,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 610 [2024-12-02 14:27:01,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand