./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 03b62196b25662d8efd4f9890b2a9ba3be7263fa8e2874a92734800e01910b00 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:34:31,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:34:31,473 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:34:31,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:34:31,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:34:31,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:34:31,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:34:31,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:34:31,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:34:31,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:34:31,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:34:31,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:34:31,508 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:34:31,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:34:31,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:34:31,509 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:34:31,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:34:31,509 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:34:31,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:34:31,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:34:31,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:34:31,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:34:31,510 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:34:31,510 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:34:31,510 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:34:31,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:34:31,510 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:34:31,510 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:34:31,510 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:34:31,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:34:31,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:34:31,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:34:31,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:34:31,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:34:31,511 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:34:31,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:34:31,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:34:31,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:34:31,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:34:31,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:34:31,512 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:34:31,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:34:31,512 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 03b62196b25662d8efd4f9890b2a9ba3be7263fa8e2874a92734800e01910b00 [2025-03-04 06:34:31,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:34:31,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:34:31,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:34:31,730 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:34:31,730 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:34:31,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i [2025-03-04 06:34:32,880 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f11feaed/642e3d1f52c041a694ca1688aeb95ca7/FLAGa1bf24d29 [2025-03-04 06:34:33,141 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:34:33,145 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i [2025-03-04 06:34:33,160 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f11feaed/642e3d1f52c041a694ca1688aeb95ca7/FLAGa1bf24d29 [2025-03-04 06:34:33,176 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f11feaed/642e3d1f52c041a694ca1688aeb95ca7 [2025-03-04 06:34:33,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:34:33,179 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:34:33,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:34:33,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:34:33,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:34:33,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a2aade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33, skipping insertion in model container [2025-03-04 06:34:33,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,218 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:34:33,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:34:33,519 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:34:33,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:34:33,632 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:34:33,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33 WrapperNode [2025-03-04 06:34:33,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:34:33,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:34:33,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:34:33,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:34:33,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,672 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 496 [2025-03-04 06:34:33,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:34:33,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:34:33,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:34:33,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:34:33,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,684 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,685 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,697 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,707 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:34:33,713 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:34:33,713 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:34:33,713 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:34:33,714 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (1/1) ... [2025-03-04 06:34:33,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:34:33,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:34:33,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 06:34:33,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 06:34:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 06:34:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:34:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 06:34:33,777 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 06:34:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 06:34:33,777 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 06:34:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 06:34:33,777 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 06:34:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-04 06:34:33,777 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-04 06:34:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:34:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 06:34:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:34:33,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:34:33,781 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:34:33,962 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:34:33,964 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:34:35,188 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:34:35,188 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:34:37,486 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:34:37,526 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:34:37,559 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:34:37,591 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:34:37,632 WARN L170 LargeBlockEncoding]: Complex 2:55 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:34:37,859 WARN L170 LargeBlockEncoding]: Complex 2:55 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:34:38,592 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-04 06:34:38,630 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:34:38,634 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:34:38,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:34:38 BoogieIcfgContainer [2025-03-04 06:34:38,634 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:34:38,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:34:38,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:34:38,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:34:38,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:34:33" (1/3) ... [2025-03-04 06:34:38,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbf1e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:34:38, skipping insertion in model container [2025-03-04 06:34:38,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:34:33" (2/3) ... [2025-03-04 06:34:38,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbf1e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:34:38, skipping insertion in model container [2025-03-04 06:34:38,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:34:38" (3/3) ... [2025-03-04 06:34:38,644 INFO L128 eAbstractionObserver]: Analyzing ICFG mix053_power.oepc_pso.oepc_rmo.oepc.i [2025-03-04 06:34:38,660 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:34:38,662 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix053_power.oepc_pso.oepc_rmo.oepc.i that has 5 procedures, 406 locations, 1 initial locations, 0 loop locations, and 279 error locations. [2025-03-04 06:34:38,662 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:34:39,323 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:34:39,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 418 places, 628 transitions, 1272 flow [2025-03-04 06:34:39,901 INFO L124 PetriNetUnfolderBase]: 223/624 cut-off events. [2025-03-04 06:34:39,903 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:34:39,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 624 events. 223/624 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2470 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 588. Up to 3 conditions per place. [2025-03-04 06:34:39,940 INFO L82 GeneralOperation]: Start removeDead. Operand has 418 places, 628 transitions, 1272 flow [2025-03-04 06:34:40,003 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 414 places, 624 transitions, 1260 flow [2025-03-04 06:34:40,013 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:34:40,026 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;@70d7b14b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:34:40,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 525 error locations. [2025-03-04 06:34:40,037 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:34:40,038 INFO L124 PetriNetUnfolderBase]: 0/45 cut-off events. [2025-03-04 06:34:40,038 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:34:40,038 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:34:40,039 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] [2025-03-04 06:34:40,039 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err49ASSERT_VIOLATIONDATA_RACE === [P0Err49ASSERT_VIOLATIONDATA_RACE, P0Err48ASSERT_VIOLATIONDATA_RACE, P0Err47ASSERT_VIOLATIONDATA_RACE, P0Err46ASSERT_VIOLATIONDATA_RACE (and 521 more)] === [2025-03-04 06:34:40,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:34:40,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1279713597, now seen corresponding path program 1 times [2025-03-04 06:34:40,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:34:40,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094688649] [2025-03-04 06:34:40,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:34:40,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:34:40,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 06:34:40,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 06:34:40,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:34:40,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:34:40,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:34:40,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:34:40,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094688649] [2025-03-04 06:34:40,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094688649] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:34:40,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:34:40,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 06:34:40,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082869340] [2025-03-04 06:34:40,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:34:40,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 06:34:40,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:34:40,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 06:34:40,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 06:34:40,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 628 [2025-03-04 06:34:40,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 624 transitions, 1260 flow. Second operand has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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) [2025-03-04 06:34:40,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:34:40,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 628 [2025-03-04 06:34:40,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:35:07,222 INFO L124 PetriNetUnfolderBase]: 11431/25249 cut-off events. [2025-03-04 06:35:07,222 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2025-03-04 06:35:07,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39653 conditions, 25249 events. 11431/25249 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 879. Compared 262675 event pairs, 7720 based on Foata normal form. 1819/21918 useless extension candidates. Maximal degree in co-relation 39602. Up to 14087 conditions per place. [2025-03-04 06:35:07,415 INFO L140 encePairwiseOnDemand]: 135/628 looper letters, 30 selfloop transitions, 0 changer transitions 0/129 dead transitions. [2025-03-04 06:35:07,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 129 transitions, 330 flow [2025-03-04 06:35:07,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 06:35:07,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 06:35:07,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 731 transitions. [2025-03-04 06:35:07,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5820063694267515 [2025-03-04 06:35:07,433 INFO L175 Difference]: Start difference. First operand has 414 places, 624 transitions, 1260 flow. Second operand 2 states and 731 transitions. [2025-03-04 06:35:07,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 129 transitions, 330 flow [2025-03-04 06:35:07,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 129 transitions, 326 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 06:35:07,441 INFO L231 Difference]: Finished difference. Result has 132 places, 129 transitions, 266 flow [2025-03-04 06:35:07,443 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=628, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=266, PETRI_PLACES=132, PETRI_TRANSITIONS=129} [2025-03-04 06:35:07,446 INFO L279 CegarLoopForPetriNet]: 414 programPoint places, -282 predicate places. [2025-03-04 06:35:07,448 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 129 transitions, 266 flow [2025-03-04 06:35:07,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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) [2025-03-04 06:35:07,448 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:35:07,448 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] [2025-03-04 06:35:07,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:35:07,449 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE === [P0Err49ASSERT_VIOLATIONDATA_RACE, P0Err48ASSERT_VIOLATIONDATA_RACE, P0Err47ASSERT_VIOLATIONDATA_RACE, P0Err46ASSERT_VIOLATIONDATA_RACE (and 521 more)] === [2025-03-04 06:35:07,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:35:07,450 INFO L85 PathProgramCache]: Analyzing trace with hash -765434473, now seen corresponding path program 1 times [2025-03-04 06:35:07,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:35:07,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642937725] [2025-03-04 06:35:07,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:35:07,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:35:07,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-04 06:35:07,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-04 06:35:07,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:35:07,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:35:07,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:35:07,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:35:07,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642937725] [2025-03-04 06:35:07,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642937725] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:35:07,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:35:07,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:35:07,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852356351] [2025-03-04 06:35:07,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:35:07,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:35:07,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:35:07,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:35:07,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:35:07,601 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 628 [2025-03-04 06:35:07,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 129 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2025-03-04 06:35:07,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:35:07,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 628 [2025-03-04 06:35:07,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:35:43,791 INFO L124 PetriNetUnfolderBase]: 16931/36052 cut-off events. [2025-03-04 06:35:43,791 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:35:43,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57203 conditions, 36052 events. 16931/36052 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 855. Compared 367198 event pairs, 3720 based on Foata normal form. 0/28914 useless extension candidates. Maximal degree in co-relation 57200. Up to 14125 conditions per place. [2025-03-04 06:35:44,004 INFO L140 encePairwiseOnDemand]: 626/628 looper letters, 53 selfloop transitions, 1 changer transitions 0/150 dead transitions. [2025-03-04 06:35:44,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 150 transitions, 416 flow [2025-03-04 06:35:44,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:35:44,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:35:44,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2025-03-04 06:35:44,008 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.19002123142250532 [2025-03-04 06:35:44,008 INFO L175 Difference]: Start difference. First operand has 132 places, 129 transitions, 266 flow. Second operand 3 states and 358 transitions. [2025-03-04 06:35:44,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 150 transitions, 416 flow [2025-03-04 06:35:44,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 150 transitions, 416 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:35:44,014 INFO L231 Difference]: Finished difference. Result has 133 places, 128 transitions, 266 flow [2025-03-04 06:35:44,014 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=628, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=133, PETRI_TRANSITIONS=128} [2025-03-04 06:35:44,014 INFO L279 CegarLoopForPetriNet]: 414 programPoint places, -281 predicate places. [2025-03-04 06:35:44,015 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 128 transitions, 266 flow [2025-03-04 06:35:44,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2025-03-04 06:35:44,015 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:35:44,015 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] [2025-03-04 06:35:44,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:35:44,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [P0Err49ASSERT_VIOLATIONDATA_RACE, P0Err48ASSERT_VIOLATIONDATA_RACE, P0Err47ASSERT_VIOLATIONDATA_RACE, P0Err46ASSERT_VIOLATIONDATA_RACE (and 521 more)] === [2025-03-04 06:35:44,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:35:44,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1311316771, now seen corresponding path program 1 times [2025-03-04 06:35:44,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:35:44,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560342148] [2025-03-04 06:35:44,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:35:44,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:35:44,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-04 06:35:44,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-04 06:35:44,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:35:44,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:35:44,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:35:44,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:35:44,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560342148] [2025-03-04 06:35:44,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560342148] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:35:44,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:35:44,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:35:44,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246102476] [2025-03-04 06:35:44,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:35:44,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:35:44,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:35:44,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:35:44,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:35:44,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 628 [2025-03-04 06:35:44,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 128 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2025-03-04 06:35:44,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:35:44,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 628 [2025-03-04 06:35:44,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand