./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.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_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB --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 8943650a21e052edc6a6af145da55799620df509a78c8e503eca6167eaa2f8fc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:04:37,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:04:37,508 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 20:04:37,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:04:37,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:04:37,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:04:37,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:04:37,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:04:37,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:04:37,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:04:37,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:04:37,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:04:37,581 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:04:37,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:04:37,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:04:37,581 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:04:37,581 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:04:37,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:04:37,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:04:37,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:04:37,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:04:37,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:04:37,583 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 20:04:37,584 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:04:37,584 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:04:37,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:04:37,584 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:04:37,584 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:04:37,584 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:04:37,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:04:37,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:04:37,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:04:37,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:04:37,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:04:37,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:04:37,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:04:37,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:04:37,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:04:37,586 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:04:37,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:04:37,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:04:37,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:04:37,586 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:04:37,586 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:04:37,586 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:04:37,586 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:04:37,586 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_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 8943650a21e052edc6a6af145da55799620df509a78c8e503eca6167eaa2f8fc [2024-11-27 20:04:37,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:04:38,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:04:38,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:04:38,010 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:04:38,011 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:04:38,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i [2024-11-27 20:04:41,724 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/data/83d53c8c4/ac9226ab0c954a1f9a0c52879609afb2/FLAG0c494473e [2024-11-27 20:04:42,177 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:04:42,178 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i [2024-11-27 20:04:42,199 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/data/83d53c8c4/ac9226ab0c954a1f9a0c52879609afb2/FLAG0c494473e [2024-11-27 20:04:42,219 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/data/83d53c8c4/ac9226ab0c954a1f9a0c52879609afb2 [2024-11-27 20:04:42,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:04:42,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:04:42,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:04:42,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:04:42,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:04:42,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:04:42" (1/1) ... [2024-11-27 20:04:42,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd2d064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:42, skipping insertion in model container [2024-11-27 20:04:42,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:04:42" (1/1) ... [2024-11-27 20:04:42,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:04:42,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:04:42,852 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:04:43,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:04:43,090 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:04:43,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43 WrapperNode [2024-11-27 20:04:43,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:04:43,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:04:43,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:04:43,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:04:43,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,228 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 503 [2024-11-27 20:04:43,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:04:43,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:04:43,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:04:43,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:04:43,251 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,295 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,323 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,338 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:04:43,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:04:43,355 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:04:43,355 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:04:43,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (1/1) ... [2024-11-27 20:04:43,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:04:43,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:43,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:04:43,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57420496-5af6-4e4e-acf0-719c61fbf5c8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:04:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 20:04:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:04:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-27 20:04:43,452 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-27 20:04:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-27 20:04:43,453 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-27 20:04:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-27 20:04:43,453 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-27 20:04:43,453 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-27 20:04:43,453 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-27 20:04:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 20:04:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 20:04:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:04:43,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:04:43,457 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:04:43,777 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:04:43,781 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:04:46,474 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:04:46,475 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:04:53,530 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:04:53,530 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:04:53,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:04:53 BoogieIcfgContainer [2024-11-27 20:04:53,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:04:53,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:04:53,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:04:53,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:04:53,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:04:42" (1/3) ... [2024-11-27 20:04:53,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1836e13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:04:53, skipping insertion in model container [2024-11-27 20:04:53,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:43" (2/3) ... [2024-11-27 20:04:53,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1836e13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:04:53, skipping insertion in model container [2024-11-27 20:04:53,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:04:53" (3/3) ... [2024-11-27 20:04:53,546 INFO L128 eAbstractionObserver]: Analyzing ICFG mix021_power.oepc_pso.oepc_rmo.oepc.i [2024-11-27 20:04:53,566 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:04:53,570 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix021_power.oepc_pso.oepc_rmo.oepc.i that has 5 procedures, 411 locations, 1 initial locations, 0 loop locations, and 282 error locations. [2024-11-27 20:04:53,571 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:04:53,935 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:04:53,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 423 places, 413 transitions, 842 flow [2024-11-27 20:04:54,475 INFO L124 PetriNetUnfolderBase]: 3/409 cut-off events. [2024-11-27 20:04:54,480 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:04:54,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 409 events. 3/409 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2320 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 372. Up to 2 conditions per place. [2024-11-27 20:04:54,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 423 places, 413 transitions, 842 flow [2024-11-27 20:04:54,550 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 419 places, 409 transitions, 830 flow [2024-11-27 20:04:54,567 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:04:54,595 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;@7d9997ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:04:54,595 INFO L334 AbstractCegarLoop]: Starting to check reachability of 530 error locations. [2024-11-27 20:04:54,612 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:04:54,612 INFO L124 PetriNetUnfolderBase]: 0/45 cut-off events. [2024-11-27 20:04:54,612 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:04:54,613 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:54,613 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] [2024-11-27 20:04:54,614 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2024-11-27 20:04:54,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:54,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1432916325, now seen corresponding path program 1 times [2024-11-27 20:04:54,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:54,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808258239] [2024-11-27 20:04:54,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:54,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:04:54,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:54,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808258239] [2024-11-27 20:04:54,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808258239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:54,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:04:54,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:04:54,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882849804] [2024-11-27 20:04:54,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:54,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:04:54,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:55,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:04:55,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:04:55,014 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 413 [2024-11-27 20:04:55,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 409 transitions, 830 flow. Second operand has 2 states, 2 states have (on average 106.0) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:04:55,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:55,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 413 [2024-11-27 20:04:55,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:09,311 INFO L124 PetriNetUnfolderBase]: 9295/25614 cut-off events. [2024-11-27 20:05:09,312 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-27 20:05:09,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38382 conditions, 25614 events. 9295/25614 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1045. Compared 312507 event pairs, 9295 based on Foata normal form. 2193/26114 useless extension candidates. Maximal degree in co-relation 38330. Up to 12451 conditions per place. [2024-11-27 20:05:09,581 INFO L140 encePairwiseOnDemand]: 130/413 looper letters, 24 selfloop transitions, 0 changer transitions 0/124 dead transitions. [2024-11-27 20:05:09,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 124 transitions, 308 flow [2024-11-27 20:05:09,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:05:09,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-27 20:05:09,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 517 transitions. [2024-11-27 20:05:09,605 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.62590799031477 [2024-11-27 20:05:09,610 INFO L175 Difference]: Start difference. First operand has 419 places, 409 transitions, 830 flow. Second operand 2 states and 517 transitions. [2024-11-27 20:05:09,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 124 transitions, 308 flow [2024-11-27 20:05:09,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 124 transitions, 304 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-27 20:05:09,624 INFO L231 Difference]: Finished difference. Result has 134 places, 124 transitions, 256 flow [2024-11-27 20:05:09,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=134, PETRI_TRANSITIONS=124} [2024-11-27 20:05:09,635 INFO L279 CegarLoopForPetriNet]: 419 programPoint places, -285 predicate places. [2024-11-27 20:05:09,638 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 124 transitions, 256 flow [2024-11-27 20:05:09,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 106.0) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:09,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:09,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:09,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:05:09,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2024-11-27 20:05:09,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:09,642 INFO L85 PathProgramCache]: Analyzing trace with hash 843276322, now seen corresponding path program 1 times [2024-11-27 20:05:09,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:09,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11758471] [2024-11-27 20:05:09,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:09,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:09,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:09,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:09,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11758471] [2024-11-27 20:05:09,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11758471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:09,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:09,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:09,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085096552] [2024-11-27 20:05:09,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:09,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:09,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:09,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:09,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:09,952 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 413 [2024-11-27 20:05:09,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 124 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:09,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:09,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 413 [2024-11-27 20:05:09,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:23,830 INFO L124 PetriNetUnfolderBase]: 14145/36892 cut-off events. [2024-11-27 20:05:23,830 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:05:23,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56007 conditions, 36892 events. 14145/36892 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1016. Compared 440065 event pairs, 4445 based on Foata normal form. 0/34590 useless extension candidates. Maximal degree in co-relation 56004. Up to 12700 conditions per place. [2024-11-27 20:05:24,058 INFO L140 encePairwiseOnDemand]: 411/413 looper letters, 42 selfloop transitions, 1 changer transitions 0/140 dead transitions. [2024-11-27 20:05:24,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 140 transitions, 374 flow [2024-11-27 20:05:24,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:24,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-11-27 20:05:24,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2824858757062147 [2024-11-27 20:05:24,065 INFO L175 Difference]: Start difference. First operand has 134 places, 124 transitions, 256 flow. Second operand 3 states and 350 transitions. [2024-11-27 20:05:24,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 140 transitions, 374 flow [2024-11-27 20:05:24,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 140 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 20:05:24,072 INFO L231 Difference]: Finished difference. Result has 135 places, 123 transitions, 256 flow [2024-11-27 20:05:24,075 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=135, PETRI_TRANSITIONS=123} [2024-11-27 20:05:24,075 INFO L279 CegarLoopForPetriNet]: 419 programPoint places, -284 predicate places. [2024-11-27 20:05:24,076 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 123 transitions, 256 flow [2024-11-27 20:05:24,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:24,076 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:24,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:24,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:05:24,077 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2024-11-27 20:05:24,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:24,078 INFO L85 PathProgramCache]: Analyzing trace with hash 237016136, now seen corresponding path program 1 times [2024-11-27 20:05:24,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:24,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639909983] [2024-11-27 20:05:24,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:24,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:24,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:24,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:24,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639909983] [2024-11-27 20:05:24,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639909983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:24,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:24,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:24,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857685431] [2024-11-27 20:05:24,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:24,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:24,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:24,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:24,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:24,625 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 413 [2024-11-27 20:05:24,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 123 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:05:24,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:24,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 413 [2024-11-27 20:05:24,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand