./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 735b3cc8 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/mix030_power.opt_pso.opt_rmo.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9565dcbef2b519c6326563c41ab6633c2e0b59b7d9ee2c8626de0cd3767b77b1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 00:49:54,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 00:49:54,214 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-14 00:49:54,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 00:49:54,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 00:49:54,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 00:49:54,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 00:49:54,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 00:49:54,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-14 00:49:54,236 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-14 00:49:54,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 00:49:54,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 00:49:54,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 00:49:54,236 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 00:49:54,236 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 00:49:54,236 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 00:49:54,236 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 00:49:54,236 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 00:49:54,237 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 00:49:54,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-14 00:49:54,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 00:49:54,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:49:54,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 00:49:54,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 00:49:54,238 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 00:49:54,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 00:49:54,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 00:49:54,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 00:49:54,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 00:49:54,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 00:49:54,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 00:49:54,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 00:49:54,238 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 ! call(reach_error())) ) 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 -> 9565dcbef2b519c6326563c41ab6633c2e0b59b7d9ee2c8626de0cd3767b77b1 [2025-03-14 00:49:54,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 00:49:54,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 00:49:54,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 00:49:54,472 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 00:49:54,472 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 00:49:54,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i [2025-03-14 00:49:55,593 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b55991b0/a2f4b44830944f69b0c27ec0483796f6/FLAGccfbe9e90 [2025-03-14 00:49:55,885 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 00:49:55,886 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i [2025-03-14 00:49:55,906 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b55991b0/a2f4b44830944f69b0c27ec0483796f6/FLAGccfbe9e90 [2025-03-14 00:49:56,177 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b55991b0/a2f4b44830944f69b0c27ec0483796f6 [2025-03-14 00:49:56,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 00:49:56,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 00:49:56,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 00:49:56,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 00:49:56,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 00:49:56,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3c8954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56, skipping insertion in model container [2025-03-14 00:49:56,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,220 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 00:49:56,374 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i[966,979] [2025-03-14 00:49:56,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:49:56,580 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 00:49:56,589 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i[966,979] [2025-03-14 00:49:56,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:49:56,690 INFO L204 MainTranslator]: Completed translation [2025-03-14 00:49:56,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56 WrapperNode [2025-03-14 00:49:56,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 00:49:56,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 00:49:56,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 00:49:56,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 00:49:56,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,738 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2025-03-14 00:49:56,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 00:49:56,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 00:49:56,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 00:49:56,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 00:49:56,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,751 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,772 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-14 00:49:56,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,777 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,778 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,782 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 00:49:56,786 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 00:49:56,786 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 00:49:56,786 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 00:49:56,787 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (1/1) ... [2025-03-14 00:49:56,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:49:56,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 00:49:56,819 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) [2025-03-14 00:49:56,823 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 [2025-03-14 00:49:56,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 00:49:56,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 00:49:56,842 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-14 00:49:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-14 00:49:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-14 00:49:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-14 00:49:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-14 00:49:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-14 00:49:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-14 00:49:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-14 00:49:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-14 00:49:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 00:49:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 00:49:56,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 00:49:56,846 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 00:49:56,942 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 00:49:56,944 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 00:49:57,191 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 00:49:57,192 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 00:49:57,192 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 00:49:57,381 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 00:49:57,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:49:57 BoogieIcfgContainer [2025-03-14 00:49:57,381 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 00:49:57,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 00:49:57,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 00:49:57,386 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 00:49:57,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 12:49:56" (1/3) ... [2025-03-14 00:49:57,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc6d213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:49:57, skipping insertion in model container [2025-03-14 00:49:57,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:49:56" (2/3) ... [2025-03-14 00:49:57,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc6d213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:49:57, skipping insertion in model container [2025-03-14 00:49:57,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:49:57" (3/3) ... [2025-03-14 00:49:57,389 INFO L128 eAbstractionObserver]: Analyzing ICFG mix030_power.opt_pso.opt_rmo.opt.i [2025-03-14 00:49:57,399 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 00:49:57,402 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix030_power.opt_pso.opt_rmo.opt.i that has 5 procedures, 49 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-14 00:49:57,402 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 00:49:57,447 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 00:49:57,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2025-03-14 00:49:57,506 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2025-03-14 00:49:57,508 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:49:57,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 45 events. 1/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2025-03-14 00:49:57,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2025-03-14 00:49:57,516 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2025-03-14 00:49:57,526 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 00:49:57,535 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;@2ad6917f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 00:49:57,536 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-14 00:49:57,542 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 00:49:57,543 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2025-03-14 00:49:57,543 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:49:57,543 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:49:57,544 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:49:57,545 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 00:49:57,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:49:57,549 INFO L85 PathProgramCache]: Analyzing trace with hash -977341618, now seen corresponding path program 1 times [2025-03-14 00:49:57,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:49:57,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186179518] [2025-03-14 00:49:57,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:49:57,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:49:57,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-14 00:49:57,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-14 00:49:57,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:49:57,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:49:57,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:49:57,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:49:57,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186179518] [2025-03-14 00:49:57,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186179518] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:49:57,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:49:57,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-14 00:49:57,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982695466] [2025-03-14 00:49:57,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:49:57,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 00:49:57,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:49:57,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 00:49:57,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 00:49:57,974 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 49 [2025-03-14 00:49:57,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2025-03-14 00:49:57,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:49:57,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 49 [2025-03-14 00:49:57,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:50:01,357 INFO L124 PetriNetUnfolderBase]: 40307/53592 cut-off events. [2025-03-14 00:50:01,358 INFO L125 PetriNetUnfolderBase]: For 244/244 co-relation queries the response was YES. [2025-03-14 00:50:01,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107036 conditions, 53592 events. 40307/53592 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 1588. Compared 316064 event pairs, 5087 based on Foata normal form. 1476/54797 useless extension candidates. Maximal degree in co-relation 107024. Up to 45661 conditions per place. [2025-03-14 00:50:01,604 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 57 selfloop transitions, 2 changer transitions 2/68 dead transitions. [2025-03-14 00:50:01,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 68 transitions, 273 flow [2025-03-14 00:50:01,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 00:50:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 00:50:01,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2025-03-14 00:50:01,614 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6598639455782312 [2025-03-14 00:50:01,615 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 97 transitions. [2025-03-14 00:50:01,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 68 transitions, 273 flow [2025-03-14 00:50:01,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 68 transitions, 268 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-14 00:50:01,623 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2025-03-14 00:50:01,625 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2025-03-14 00:50:01,628 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2025-03-14 00:50:01,628 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2025-03-14 00:50:01,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2025-03-14 00:50:01,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:50:01,629 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:50:01,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 00:50:01,630 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 00:50:01,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:50:01,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1170534810, now seen corresponding path program 1 times [2025-03-14 00:50:01,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:50:01,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906010961] [2025-03-14 00:50:01,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:50:01,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:50:01,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-14 00:50:01,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-14 00:50:01,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:50:01,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:50:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:50:01,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:50:01,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906010961] [2025-03-14 00:50:01,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906010961] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:50:01,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:50:01,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-14 00:50:01,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737444733] [2025-03-14 00:50:01,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:50:01,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 00:50:01,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:50:01,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 00:50:01,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-14 00:50:01,956 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2025-03-14 00:50:01,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-03-14 00:50:01,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:50:01,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2025-03-14 00:50:01,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:50:05,761 INFO L124 PetriNetUnfolderBase]: 53483/71535 cut-off events. [2025-03-14 00:50:05,761 INFO L125 PetriNetUnfolderBase]: For 2808/2808 co-relation queries the response was YES. [2025-03-14 00:50:05,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145281 conditions, 71535 events. 53483/71535 cut-off events. For 2808/2808 co-relation queries the response was YES. Maximal size of possible extension queue 2018. Compared 426468 event pairs, 9851 based on Foata normal form. 0/70428 useless extension candidates. Maximal degree in co-relation 145271. Up to 37153 conditions per place. [2025-03-14 00:50:06,062 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 53 selfloop transitions, 2 changer transitions 97/157 dead transitions. [2025-03-14 00:50:06,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 157 transitions, 642 flow [2025-03-14 00:50:06,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-14 00:50:06,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-14 00:50:06,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 226 transitions. [2025-03-14 00:50:06,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.576530612244898 [2025-03-14 00:50:06,065 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 8 states and 226 transitions. [2025-03-14 00:50:06,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 157 transitions, 642 flow [2025-03-14 00:50:06,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 157 transitions, 626 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 00:50:06,076 INFO L231 Difference]: Finished difference. Result has 63 places, 41 transitions, 106 flow [2025-03-14 00:50:06,076 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=106, PETRI_PLACES=63, PETRI_TRANSITIONS=41} [2025-03-14 00:50:06,077 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2025-03-14 00:50:06,077 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 41 transitions, 106 flow [2025-03-14 00:50:06,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-03-14 00:50:06,077 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:50:06,077 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:50:06,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 00:50:06,078 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 00:50:06,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:50:06,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1657372435, now seen corresponding path program 1 times [2025-03-14 00:50:06,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:50:06,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638458258] [2025-03-14 00:50:06,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:50:06,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:50:06,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-14 00:50:06,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-14 00:50:06,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:50:06,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:50:06,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:50:06,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:50:06,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638458258] [2025-03-14 00:50:06,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638458258] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:50:06,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:50:06,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-14 00:50:06,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10686119] [2025-03-14 00:50:06,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:50:06,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 00:50:06,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:50:06,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 00:50:06,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-14 00:50:06,472 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2025-03-14 00:50:06,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 41 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2025-03-14 00:50:06,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:50:06,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2025-03-14 00:50:06,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:50:09,964 INFO L124 PetriNetUnfolderBase]: 41225/55551 cut-off events. [2025-03-14 00:50:09,965 INFO L125 PetriNetUnfolderBase]: For 10416/10416 co-relation queries the response was YES. [2025-03-14 00:50:10,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120080 conditions, 55551 events. 41225/55551 cut-off events. For 10416/10416 co-relation queries the response was YES. Maximal size of possible extension queue 1537. Compared 336421 event pairs, 9333 based on Foata normal form. 1080/56626 useless extension candidates. Maximal degree in co-relation 120065. Up to 44929 conditions per place. [2025-03-14 00:50:10,364 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 57 selfloop transitions, 3 changer transitions 65/130 dead transitions. [2025-03-14 00:50:10,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 130 transitions, 553 flow [2025-03-14 00:50:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-14 00:50:10,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-14 00:50:10,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2025-03-14 00:50:10,366 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5539358600583091 [2025-03-14 00:50:10,366 INFO L175 Difference]: Start difference. First operand has 63 places, 41 transitions, 106 flow. Second operand 7 states and 190 transitions. [2025-03-14 00:50:10,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 130 transitions, 553 flow [2025-03-14 00:50:11,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 130 transitions, 531 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-03-14 00:50:11,520 INFO L231 Difference]: Finished difference. Result has 62 places, 43 transitions, 129 flow [2025-03-14 00:50:11,521 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=129, PETRI_PLACES=62, PETRI_TRANSITIONS=43} [2025-03-14 00:50:11,521 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 5 predicate places. [2025-03-14 00:50:11,521 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 43 transitions, 129 flow [2025-03-14 00:50:11,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2025-03-14 00:50:11,521 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:50:11,521 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] [2025-03-14 00:50:11,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 00:50:11,522 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 00:50:11,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:50:11,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1607993098, now seen corresponding path program 1 times [2025-03-14 00:50:11,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:50:11,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341400059] [2025-03-14 00:50:11,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:50:11,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:50:11,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-14 00:50:11,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-14 00:50:11,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:50:11,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:50:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:50:12,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:50:12,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341400059] [2025-03-14 00:50:12,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341400059] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:50:12,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:50:12,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 00:50:12,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451740555] [2025-03-14 00:50:12,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:50:12,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 00:50:12,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:50:12,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 00:50:12,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-14 00:50:12,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2025-03-14 00:50:12,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 43 transitions, 129 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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) [2025-03-14 00:50:12,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:50:12,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2025-03-14 00:50:12,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:50:17,926 INFO L124 PetriNetUnfolderBase]: 67677/90668 cut-off events. [2025-03-14 00:50:17,926 INFO L125 PetriNetUnfolderBase]: For 41458/41458 co-relation queries the response was YES. [2025-03-14 00:50:18,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211976 conditions, 90668 events. 67677/90668 cut-off events. For 41458/41458 co-relation queries the response was YES. Maximal size of possible extension queue 2232. Compared 546241 event pairs, 10007 based on Foata normal form. 1746/92403 useless extension candidates. Maximal degree in co-relation 211960. Up to 49798 conditions per place. [2025-03-14 00:50:18,509 INFO L140 encePairwiseOnDemand]: 33/49 looper letters, 93 selfloop transitions, 20 changer transitions 105/223 dead transitions. [2025-03-14 00:50:18,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 223 transitions, 1090 flow [2025-03-14 00:50:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-14 00:50:18,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-14 00:50:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 312 transitions. [2025-03-14 00:50:18,510 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5788497217068646 [2025-03-14 00:50:18,511 INFO L175 Difference]: Start difference. First operand has 62 places, 43 transitions, 129 flow. Second operand 11 states and 312 transitions. [2025-03-14 00:50:18,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 223 transitions, 1090 flow [2025-03-14 00:50:19,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 223 transitions, 1067 flow, removed 7 selfloop flow, removed 3 redundant places. [2025-03-14 00:50:19,330 INFO L231 Difference]: Finished difference. Result has 75 places, 62 transitions, 339 flow [2025-03-14 00:50:19,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=339, PETRI_PLACES=75, PETRI_TRANSITIONS=62} [2025-03-14 00:50:19,331 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 18 predicate places. [2025-03-14 00:50:19,331 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 62 transitions, 339 flow [2025-03-14 00:50:19,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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) [2025-03-14 00:50:19,331 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:50:19,331 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] [2025-03-14 00:50:19,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 00:50:19,332 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 00:50:19,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:50:19,332 INFO L85 PathProgramCache]: Analyzing trace with hash 390475729, now seen corresponding path program 1 times [2025-03-14 00:50:19,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:50:19,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422404144] [2025-03-14 00:50:19,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:50:19,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:50:19,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-14 00:50:19,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-14 00:50:19,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:50:19,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:50:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:50:19,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:50:19,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422404144] [2025-03-14 00:50:19,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422404144] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:50:19,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:50:19,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 00:50:19,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392778438] [2025-03-14 00:50:19,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:50:19,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 00:50:19,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:50:19,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 00:50:19,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-14 00:50:19,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2025-03-14 00:50:19,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 62 transitions, 339 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 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) [2025-03-14 00:50:19,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:50:19,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2025-03-14 00:50:19,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:50:26,590 INFO L124 PetriNetUnfolderBase]: 64271/86992 cut-off events. [2025-03-14 00:50:26,591 INFO L125 PetriNetUnfolderBase]: For 195488/195499 co-relation queries the response was YES. [2025-03-14 00:50:27,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295342 conditions, 86992 events. 64271/86992 cut-off events. For 195488/195499 co-relation queries the response was YES. Maximal size of possible extension queue 2074. Compared 531452 event pairs, 11425 based on Foata normal form. 1274/88255 useless extension candidates. Maximal degree in co-relation 295317. Up to 67267 conditions per place. [2025-03-14 00:50:27,422 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 126 selfloop transitions, 24 changer transitions 113/268 dead transitions. [2025-03-14 00:50:27,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 268 transitions, 1969 flow [2025-03-14 00:50:27,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-14 00:50:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-14 00:50:27,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 292 transitions. [2025-03-14 00:50:27,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5417439703153989 [2025-03-14 00:50:27,425 INFO L175 Difference]: Start difference. First operand has 75 places, 62 transitions, 339 flow. Second operand 11 states and 292 transitions. [2025-03-14 00:50:27,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 268 transitions, 1969 flow [2025-03-14 00:50:27,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 268 transitions, 1969 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 00:50:27,570 INFO L231 Difference]: Finished difference. Result has 87 places, 78 transitions, 568 flow [2025-03-14 00:50:27,570 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=568, PETRI_PLACES=87, PETRI_TRANSITIONS=78} [2025-03-14 00:50:27,571 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 30 predicate places. [2025-03-14 00:50:27,571 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 78 transitions, 568 flow [2025-03-14 00:50:27,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 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) [2025-03-14 00:50:27,571 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:50:27,571 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] [2025-03-14 00:50:27,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 00:50:27,571 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 00:50:27,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:50:27,572 INFO L85 PathProgramCache]: Analyzing trace with hash -894088830, now seen corresponding path program 1 times [2025-03-14 00:50:27,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:50:27,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612558898] [2025-03-14 00:50:27,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:50:27,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:50:27,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-14 00:50:27,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-14 00:50:27,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:50:27,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:50:28,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:50:28,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:50:28,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612558898] [2025-03-14 00:50:28,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612558898] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:50:28,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:50:28,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 00:50:28,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64166892] [2025-03-14 00:50:28,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:50:28,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 00:50:28,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:50:28,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 00:50:28,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-14 00:50:28,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2025-03-14 00:50:28,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 78 transitions, 568 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 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) [2025-03-14 00:50:28,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:50:28,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2025-03-14 00:50:28,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand