./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/chl-poker-hand-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-poker-hand-trans.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0028e6fa5bf865c1068c8d55bf1863ae46985780e15895ccbb76824c97a247a7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:31:02,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:31:02,962 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:31:02,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:31:02,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:31:02,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:31:02,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:31:02,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:31:02,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:31:02,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:31:02,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:31:02,993 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:31:02,993 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:31:02,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:31:02,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:31:02,994 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:31:02,994 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:31:02,994 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:31:02,994 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:31:02,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:31:02,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:31:02,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:31:02,995 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:31:02,995 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:31:02,995 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:31:02,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:31:02,995 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:31:02,995 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:31:02,995 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:31:02,995 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:31:02,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:31:02,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:31:02,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:31:02,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:31:02,996 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-jdk21/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 -> 0028e6fa5bf865c1068c8d55bf1863ae46985780e15895ccbb76824c97a247a7 [2025-01-09 21:31:03,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:31:03,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:31:03,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:31:03,211 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:31:03,211 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:31:03,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-poker-hand-trans.wvr.c [2025-01-09 21:31:04,352 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ff0787a8/abe97f64c334416b9836a51d23282f76/FLAGcf67ab60e [2025-01-09 21:31:04,654 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:31:04,655 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-trans.wvr.c [2025-01-09 21:31:04,664 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ff0787a8/abe97f64c334416b9836a51d23282f76/FLAGcf67ab60e [2025-01-09 21:31:04,679 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ff0787a8/abe97f64c334416b9836a51d23282f76 [2025-01-09 21:31:04,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:31:04,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:31:04,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:31:04,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:31:04,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:31:04,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:31:04" (1/1) ... [2025-01-09 21:31:04,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c7a50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:04, skipping insertion in model container [2025-01-09 21:31:04,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:31:04" (1/1) ... [2025-01-09 21:31:04,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:31:05,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:31:05,032 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:31:05,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:31:05,178 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:31:05,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05 WrapperNode [2025-01-09 21:31:05,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:31:05,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:31:05,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:31:05,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:31:05,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,222 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,410 INFO L138 Inliner]: procedures = 25, calls = 440, calls flagged for inlining = 101, calls inlined = 145, statements flattened = 4963 [2025-01-09 21:31:05,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:31:05,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:31:05,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:31:05,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:31:05,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,616 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,676 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:31:05,680 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:31:05,680 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:31:05,680 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:31:05,681 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (1/1) ... [2025-01-09 21:31:05,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:31:05,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:31:05,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:31:05,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:31:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:31:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-09 21:31:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-09 21:31:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-09 21:31:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-09 21:31:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-09 21:31:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-09 21:31:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:31:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:31:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-09 21:31:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-09 21:31:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 21:31:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:31:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:31:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:31:05,745 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:31:05,952 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:31:05,954 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:31:09,814 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:31:09,814 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:31:20,529 WARN L170 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-01-09 21:31:20,717 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:31:20,717 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2025-01-09 21:31:20,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:31:20 BoogieIcfgContainer [2025-01-09 21:31:20,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:31:20,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:31:20,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:31:20,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:31:20,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:31:04" (1/3) ... [2025-01-09 21:31:20,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434e2c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:31:20, skipping insertion in model container [2025-01-09 21:31:20,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:31:05" (2/3) ... [2025-01-09 21:31:20,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434e2c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:31:20, skipping insertion in model container [2025-01-09 21:31:20,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:31:20" (3/3) ... [2025-01-09 21:31:20,724 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-trans.wvr.c [2025-01-09 21:31:20,743 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:31:20,746 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-poker-hand-trans.wvr.c that has 4 procedures, 1703 locations, 1 initial locations, 18 loop locations, and 753 error locations. [2025-01-09 21:31:20,746 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:31:22,680 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-09 21:31:22,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1712 places, 1773 transitions, 3567 flow [2025-01-09 21:31:23,875 INFO L124 PetriNetUnfolderBase]: 71/1770 cut-off events. [2025-01-09 21:31:23,877 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-01-09 21:31:23,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 1770 events. 71/1770 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 8093 event pairs, 0 based on Foata normal form. 0/946 useless extension candidates. Maximal degree in co-relation 1430. Up to 8 conditions per place. [2025-01-09 21:31:23,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 1712 places, 1773 transitions, 3567 flow [2025-01-09 21:31:23,972 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1690 places, 1749 transitions, 3516 flow [2025-01-09 21:31:23,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:31:23,994 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;@3950ed3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:31:23,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1467 error locations. [2025-01-09 21:31:24,000 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:31:24,000 INFO L124 PetriNetUnfolderBase]: 2/80 cut-off events. [2025-01-09 21:31:24,000 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:31:24,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:31:24,001 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] [2025-01-09 21:31:24,001 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 1463 more)] === [2025-01-09 21:31:24,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:31:24,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1368942066, now seen corresponding path program 1 times [2025-01-09 21:31:24,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:31:24,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981554249] [2025-01-09 21:31:24,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:31:24,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:31:24,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-01-09 21:31:24,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-01-09 21:31:24,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:31:24,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:31:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:31:24,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:31:24,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981554249] [2025-01-09 21:31:24,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981554249] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:31:24,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:31:24,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:31:24,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435472416] [2025-01-09 21:31:24,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:31:24,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:31:24,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:31:24,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:31:24,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:31:24,403 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 982 out of 1773 [2025-01-09 21:31:24,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1690 places, 1749 transitions, 3516 flow. Second operand has 3 states, 3 states have (on average 983.3333333333334) internal successors, (2950), 3 states have internal predecessors, (2950), 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) [2025-01-09 21:31:24,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:31:24,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 982 of 1773 [2025-01-09 21:31:24,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:31:36,517 INFO L124 PetriNetUnfolderBase]: 697/2608 cut-off events. [2025-01-09 21:31:36,518 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2025-01-09 21:31:36,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3470 conditions, 2608 events. 697/2608 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 12257 event pairs, 135 based on Foata normal form. 156/2336 useless extension candidates. Maximal degree in co-relation 2378. Up to 793 conditions per place. [2025-01-09 21:31:36,543 INFO L140 encePairwiseOnDemand]: 1028/1773 looper letters, 43 selfloop transitions, 2 changer transitions 24/1006 dead transitions. [2025-01-09 21:31:36,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 980 places, 1006 transitions, 2120 flow [2025-01-09 21:31:36,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:31:36,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:31:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3734 transitions. [2025-01-09 21:31:36,570 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7020116563263772 [2025-01-09 21:31:36,571 INFO L175 Difference]: Start difference. First operand has 1690 places, 1749 transitions, 3516 flow. Second operand 3 states and 3734 transitions. [2025-01-09 21:31:36,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 980 places, 1006 transitions, 2120 flow [2025-01-09 21:31:36,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 974 places, 1006 transitions, 2108 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-01-09 21:31:36,597 INFO L231 Difference]: Finished difference. Result has 974 places, 982 transitions, 1974 flow [2025-01-09 21:31:36,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1773, PETRI_DIFFERENCE_MINUEND_FLOW=2018, PETRI_DIFFERENCE_MINUEND_PLACES=972, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1006, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1004, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1974, PETRI_PLACES=974, PETRI_TRANSITIONS=982} [2025-01-09 21:31:36,603 INFO L279 CegarLoopForPetriNet]: 1690 programPoint places, -716 predicate places. [2025-01-09 21:31:36,603 INFO L471 AbstractCegarLoop]: Abstraction has has 974 places, 982 transitions, 1974 flow [2025-01-09 21:31:36,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 983.3333333333334) internal successors, (2950), 3 states have internal predecessors, (2950), 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) [2025-01-09 21:31:36,606 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:31:36,606 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] [2025-01-09 21:31:36,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:31:36,607 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 1463 more)] === [2025-01-09 21:31:36,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:31:36,607 INFO L85 PathProgramCache]: Analyzing trace with hash -235112354, now seen corresponding path program 1 times [2025-01-09 21:31:36,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:31:36,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220010343] [2025-01-09 21:31:36,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:31:36,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:31:36,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-01-09 21:31:36,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-01-09 21:31:36,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:31:36,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:31:37,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:31:37,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:31:37,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220010343] [2025-01-09 21:31:37,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220010343] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:31:37,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:31:37,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:31:37,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574472300] [2025-01-09 21:31:37,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:31:37,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:31:37,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:31:37,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:31:37,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:31:37,836 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 821 out of 1773 [2025-01-09 21:31:37,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 974 places, 982 transitions, 1974 flow. Second operand has 6 states, 6 states have (on average 822.5) internal successors, (4935), 6 states have internal predecessors, (4935), 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) [2025-01-09 21:31:37,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:31:37,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 821 of 1773 [2025-01-09 21:31:37,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:31:42,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 21:31:43,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 21:31:48,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 21:31:55,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 21:32:00,518 INFO L124 PetriNetUnfolderBase]: 697/2572 cut-off events. [2025-01-09 21:32:00,518 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-01-09 21:32:00,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3543 conditions, 2572 events. 697/2572 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12237 event pairs, 135 based on Foata normal form. 0/2180 useless extension candidates. Maximal degree in co-relation 3440. Up to 886 conditions per place. [2025-01-09 21:32:00,534 INFO L140 encePairwiseOnDemand]: 1701/1773 looper letters, 136 selfloop transitions, 60 changer transitions 0/970 dead transitions. [2025-01-09 21:32:00,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 943 places, 970 transitions, 2342 flow [2025-01-09 21:32:00,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:32:00,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:32:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5134 transitions. [2025-01-09 21:32:00,544 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48260951306636585 [2025-01-09 21:32:00,544 INFO L175 Difference]: Start difference. First operand has 974 places, 982 transitions, 1974 flow. Second operand 6 states and 5134 transitions. [2025-01-09 21:32:00,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 943 places, 970 transitions, 2342 flow [2025-01-09 21:32:00,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 941 places, 970 transitions, 2338 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:32:00,556 INFO L231 Difference]: Finished difference. Result has 941 places, 970 transitions, 2066 flow [2025-01-09 21:32:00,557 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1773, PETRI_DIFFERENCE_MINUEND_FLOW=1946, PETRI_DIFFERENCE_MINUEND_PLACES=936, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=910, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2066, PETRI_PLACES=941, PETRI_TRANSITIONS=970} [2025-01-09 21:32:00,558 INFO L279 CegarLoopForPetriNet]: 1690 programPoint places, -749 predicate places. [2025-01-09 21:32:00,558 INFO L471 AbstractCegarLoop]: Abstraction has has 941 places, 970 transitions, 2066 flow [2025-01-09 21:32:00,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 822.5) internal successors, (4935), 6 states have internal predecessors, (4935), 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) [2025-01-09 21:32:00,561 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:00,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:32:00,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:32:00,562 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 1463 more)] === [2025-01-09 21:32:00,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1145235648, now seen corresponding path program 1 times [2025-01-09 21:32:00,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:00,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124065049] [2025-01-09 21:32:00,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:00,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:00,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-09 21:32:00,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-09 21:32:00,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:00,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:00,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:00,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:00,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124065049] [2025-01-09 21:32:00,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124065049] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:00,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:00,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:00,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784480720] [2025-01-09 21:32:00,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:00,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:00,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:00,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:00,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:00,667 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 982 out of 1773 [2025-01-09 21:32:00,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 941 places, 970 transitions, 2066 flow. Second operand has 3 states, 3 states have (on average 983.3333333333334) internal successors, (2950), 3 states have internal predecessors, (2950), 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) [2025-01-09 21:32:00,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:00,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 982 of 1773 [2025-01-09 21:32:00,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:09,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 21:32:12,189 INFO L124 PetriNetUnfolderBase]: 697/2571 cut-off events. [2025-01-09 21:32:12,190 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-01-09 21:32:12,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3449 conditions, 2571 events. 697/2571 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12243 event pairs, 135 based on Foata normal form. 0/2180 useless extension candidates. Maximal degree in co-relation 3266. Up to 793 conditions per place. [2025-01-09 21:32:12,205 INFO L140 encePairwiseOnDemand]: 1770/1773 looper letters, 43 selfloop transitions, 2 changer transitions 0/969 dead transitions. [2025-01-09 21:32:12,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 942 places, 969 transitions, 2154 flow [2025-01-09 21:32:12,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:12,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:12,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2992 transitions. [2025-01-09 21:32:12,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5625117503290092 [2025-01-09 21:32:12,212 INFO L175 Difference]: Start difference. First operand has 941 places, 970 transitions, 2066 flow. Second operand 3 states and 2992 transitions. [2025-01-09 21:32:12,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 942 places, 969 transitions, 2154 flow [2025-01-09 21:32:12,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 937 places, 969 transitions, 2034 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-01-09 21:32:12,227 INFO L231 Difference]: Finished difference. Result has 937 places, 969 transitions, 1948 flow [2025-01-09 21:32:12,228 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1773, PETRI_DIFFERENCE_MINUEND_FLOW=1944, PETRI_DIFFERENCE_MINUEND_PLACES=935, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=969, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1948, PETRI_PLACES=937, PETRI_TRANSITIONS=969} [2025-01-09 21:32:12,229 INFO L279 CegarLoopForPetriNet]: 1690 programPoint places, -753 predicate places. [2025-01-09 21:32:12,229 INFO L471 AbstractCegarLoop]: Abstraction has has 937 places, 969 transitions, 1948 flow [2025-01-09 21:32:12,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 983.3333333333334) internal successors, (2950), 3 states have internal predecessors, (2950), 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) [2025-01-09 21:32:12,231 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:12,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:32:12,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:32:12,231 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 1463 more)] === [2025-01-09 21:32:12,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:12,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1572430119, now seen corresponding path program 1 times [2025-01-09 21:32:12,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:12,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89572831] [2025-01-09 21:32:12,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:12,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:12,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-01-09 21:32:12,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-01-09 21:32:12,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:12,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:12,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:12,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:12,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89572831] [2025-01-09 21:32:12,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89572831] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:12,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:12,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:12,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650685547] [2025-01-09 21:32:12,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:12,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:12,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:12,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:12,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:12,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 982 out of 1773 [2025-01-09 21:32:12,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 937 places, 969 transitions, 1948 flow. Second operand has 3 states, 3 states have (on average 983.3333333333334) internal successors, (2950), 3 states have internal predecessors, (2950), 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) [2025-01-09 21:32:12,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:12,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 982 of 1773 [2025-01-09 21:32:12,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:23,708 INFO L124 PetriNetUnfolderBase]: 697/2509 cut-off events. [2025-01-09 21:32:23,709 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-01-09 21:32:23,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3329 conditions, 2509 events. 697/2509 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 11469 event pairs, 135 based on Foata normal form. 0/2124 useless extension candidates. Maximal degree in co-relation 3191. Up to 793 conditions per place. [2025-01-09 21:32:23,731 INFO L140 encePairwiseOnDemand]: 1770/1773 looper letters, 43 selfloop transitions, 2 changer transitions 0/968 dead transitions. [2025-01-09 21:32:23,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 938 places, 968 transitions, 2036 flow [2025-01-09 21:32:23,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:23,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:23,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2992 transitions. [2025-01-09 21:32:23,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5625117503290092 [2025-01-09 21:32:23,743 INFO L175 Difference]: Start difference. First operand has 937 places, 969 transitions, 1948 flow. Second operand 3 states and 2992 transitions. [2025-01-09 21:32:23,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 938 places, 968 transitions, 2036 flow [2025-01-09 21:32:23,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 936 places, 968 transitions, 2032 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:32:23,766 INFO L231 Difference]: Finished difference. Result has 936 places, 968 transitions, 1946 flow [2025-01-09 21:32:23,770 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1773, PETRI_DIFFERENCE_MINUEND_FLOW=1942, PETRI_DIFFERENCE_MINUEND_PLACES=934, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1946, PETRI_PLACES=936, PETRI_TRANSITIONS=968} [2025-01-09 21:32:23,771 INFO L279 CegarLoopForPetriNet]: 1690 programPoint places, -754 predicate places. [2025-01-09 21:32:23,771 INFO L471 AbstractCegarLoop]: Abstraction has has 936 places, 968 transitions, 1946 flow [2025-01-09 21:32:23,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 983.3333333333334) internal successors, (2950), 3 states have internal predecessors, (2950), 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) [2025-01-09 21:32:23,773 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:23,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:32:23,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:32:23,777 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 1463 more)] === [2025-01-09 21:32:23,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:23,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1497855305, now seen corresponding path program 1 times [2025-01-09 21:32:23,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:23,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544939046] [2025-01-09 21:32:23,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:23,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:23,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-09 21:32:23,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-09 21:32:23,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:23,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:24,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:24,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544939046] [2025-01-09 21:32:24,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544939046] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:24,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:24,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:24,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647005155] [2025-01-09 21:32:24,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:24,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:24,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:24,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:24,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:24,030 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 982 out of 1773 [2025-01-09 21:32:24,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 936 places, 968 transitions, 1946 flow. Second operand has 3 states, 3 states have (on average 983.3333333333334) internal successors, (2950), 3 states have internal predecessors, (2950), 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) [2025-01-09 21:32:24,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:24,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 982 of 1773 [2025-01-09 21:32:24,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:32:37,312 INFO L124 PetriNetUnfolderBase]: 697/2508 cut-off events. [2025-01-09 21:32:37,312 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-01-09 21:32:37,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3328 conditions, 2508 events. 697/2508 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 11498 event pairs, 135 based on Foata normal form. 0/2124 useless extension candidates. Maximal degree in co-relation 3143. Up to 793 conditions per place. [2025-01-09 21:32:37,326 INFO L140 encePairwiseOnDemand]: 1770/1773 looper letters, 43 selfloop transitions, 2 changer transitions 0/967 dead transitions. [2025-01-09 21:32:37,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 967 transitions, 2034 flow [2025-01-09 21:32:37,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:32:37,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:32:37,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2992 transitions. [2025-01-09 21:32:37,335 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5625117503290092 [2025-01-09 21:32:37,335 INFO L175 Difference]: Start difference. First operand has 936 places, 968 transitions, 1946 flow. Second operand 3 states and 2992 transitions. [2025-01-09 21:32:37,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 937 places, 967 transitions, 2034 flow [2025-01-09 21:32:37,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 967 transitions, 2030 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:32:37,347 INFO L231 Difference]: Finished difference. Result has 935 places, 967 transitions, 1944 flow [2025-01-09 21:32:37,348 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1773, PETRI_DIFFERENCE_MINUEND_FLOW=1940, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=965, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1944, PETRI_PLACES=935, PETRI_TRANSITIONS=967} [2025-01-09 21:32:37,351 INFO L279 CegarLoopForPetriNet]: 1690 programPoint places, -755 predicate places. [2025-01-09 21:32:37,351 INFO L471 AbstractCegarLoop]: Abstraction has has 935 places, 967 transitions, 1944 flow [2025-01-09 21:32:37,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 983.3333333333334) internal successors, (2950), 3 states have internal predecessors, (2950), 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) [2025-01-09 21:32:37,353 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:32:37,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:32:37,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:32:37,354 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 1463 more)] === [2025-01-09 21:32:37,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:32:37,355 INFO L85 PathProgramCache]: Analyzing trace with hash -857579817, now seen corresponding path program 1 times [2025-01-09 21:32:37,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:32:37,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406118446] [2025-01-09 21:32:37,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:32:37,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:32:37,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-01-09 21:32:37,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-01-09 21:32:37,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:32:37,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:32:37,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:32:37,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:32:37,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406118446] [2025-01-09 21:32:37,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406118446] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:32:37,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:32:37,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:32:37,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336644731] [2025-01-09 21:32:37,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:32:37,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:32:37,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:32:37,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:32:37,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:32:37,508 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 982 out of 1773 [2025-01-09 21:32:37,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 967 transitions, 1944 flow. Second operand has 3 states, 3 states have (on average 983.3333333333334) internal successors, (2950), 3 states have internal predecessors, (2950), 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) [2025-01-09 21:32:37,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:32:37,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 982 of 1773 [2025-01-09 21:32:37,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand