./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix037_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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/pthread-wmm/mix037_tso.oepc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 526eb61a43a151355b0c30c3cdf9498dba5b0f807210313241440694b1deb106 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:21:29,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:21:29,594 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 04:21:29,602 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:21:29,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:21:29,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:21:29,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:21:29,632 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:21:29,633 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:21:29,633 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:21:29,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:21:29,634 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:21:29,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:21:29,634 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:21:29,635 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:21:29,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:21:29,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:21:29,635 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 04:21:29,635 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:21:29,635 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 04:21:29,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:21:29,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:21:29,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:21:29,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:21:29,636 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 04:21:29,636 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:21:29,636 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:21:29,637 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:21:29,637 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:21:29,637 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:21:29,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:21:29,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:21:29,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:21:29,637 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:21:29,637 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:21:29,637 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:21:29,637 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:21:29,637 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:21:29,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:21:29,637 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:21:29,638 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:21:29,638 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:21:29,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:21:29,638 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 ! 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 -> 526eb61a43a151355b0c30c3cdf9498dba5b0f807210313241440694b1deb106 [2025-02-06 04:21:29,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:21:29,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:21:29,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:21:29,930 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:21:29,930 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:21:29,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix037_tso.oepc.i [2025-02-06 04:21:31,304 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/54291d520/6ba5075d35f845978aa8bd23abf2615f/FLAGf36935aee [2025-02-06 04:21:31,650 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:21:31,651 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix037_tso.oepc.i [2025-02-06 04:21:31,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/54291d520/6ba5075d35f845978aa8bd23abf2615f/FLAGf36935aee [2025-02-06 04:21:31,689 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/54291d520/6ba5075d35f845978aa8bd23abf2615f [2025-02-06 04:21:31,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:21:31,693 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:21:31,695 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:21:31,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:21:31,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:21:31,701 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:21:31" (1/1) ... [2025-02-06 04:21:31,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0d5fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:31, skipping insertion in model container [2025-02-06 04:21:31,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:21:31" (1/1) ... [2025-02-06 04:21:31,744 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:21:31,898 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix037_tso.oepc.i[949,962] [2025-02-06 04:21:32,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:21:32,056 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:21:32,065 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix037_tso.oepc.i[949,962] [2025-02-06 04:21:32,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:21:32,174 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:21:32,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32 WrapperNode [2025-02-06 04:21:32,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:21:32,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:21:32,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:21:32,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:21:32,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,236 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 148 [2025-02-06 04:21:32,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:21:32,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:21:32,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:21:32,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:21:32,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,248 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,264 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]. [2025-02-06 04:21:32,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,274 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:21:32,288 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:21:32,288 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:21:32,288 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:21:32,289 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (1/1) ... [2025-02-06 04:21:32,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:21:32,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:21:32,324 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) [2025-02-06 04:21:32,331 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 [2025-02-06 04:21:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 04:21:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:21:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 04:21:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 04:21:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 04:21:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 04:21:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 04:21:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 04:21:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 04:21:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 04:21:32,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:21:32,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 04:21:32,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:21:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:21:32,355 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 04:21:32,503 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:21:32,504 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:21:32,871 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 04:21:32,871 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:21:33,099 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:21:33,100 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:21:33,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:21:33 BoogieIcfgContainer [2025-02-06 04:21:33,101 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:21:33,103 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:21:33,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:21:33,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:21:33,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:21:31" (1/3) ... [2025-02-06 04:21:33,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1032e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:21:33, skipping insertion in model container [2025-02-06 04:21:33,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:32" (2/3) ... [2025-02-06 04:21:33,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1032e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:21:33, skipping insertion in model container [2025-02-06 04:21:33,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:21:33" (3/3) ... [2025-02-06 04:21:33,111 INFO L128 eAbstractionObserver]: Analyzing ICFG mix037_tso.oepc.i [2025-02-06 04:21:33,125 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:21:33,126 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix037_tso.oepc.i that has 5 procedures, 50 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 04:21:33,126 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 04:21:33,197 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 04:21:33,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2025-02-06 04:21:33,290 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2025-02-06 04:21:33,294 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:21:33,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 1/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2025-02-06 04:21:33,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2025-02-06 04:21:33,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2025-02-06 04:21:33,310 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:21:33,327 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;@4d26ee17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:21:33,327 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-06 04:21:33,333 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 04:21:33,334 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-02-06 04:21:33,335 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:21:33,335 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:21:33,335 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 04:21:33,336 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:21:33,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:21:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash -124028116, now seen corresponding path program 1 times [2025-02-06 04:21:33,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:21:33,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963553660] [2025-02-06 04:21:33,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:21:33,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:21:33,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 04:21:33,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 04:21:33,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:21:33,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:21:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:21:33,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:21:33,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963553660] [2025-02-06 04:21:33,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963553660] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:21:33,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:21:33,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 04:21:33,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133933707] [2025-02-06 04:21:33,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:21:33,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:21:33,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:21:33,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:21:33,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:21:33,896 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 04:21:33,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2025-02-06 04:21:33,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:21:33,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 04:21:33,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:21:39,427 INFO L124 PetriNetUnfolderBase]: 46139/61147 cut-off events. [2025-02-06 04:21:39,427 INFO L125 PetriNetUnfolderBase]: For 243/243 co-relation queries the response was YES. [2025-02-06 04:21:39,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122151 conditions, 61147 events. 46139/61147 cut-off events. For 243/243 co-relation queries the response was YES. Maximal size of possible extension queue 1794. Compared 367424 event pairs, 5709 based on Foata normal form. 1692/62577 useless extension candidates. Maximal degree in co-relation 122139. Up to 52371 conditions per place. [2025-02-06 04:21:39,868 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 61 selfloop transitions, 2 changer transitions 2/72 dead transitions. [2025-02-06 04:21:39,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 292 flow [2025-02-06 04:21:39,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:21:39,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:21:39,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2025-02-06 04:21:39,886 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6733333333333333 [2025-02-06 04:21:39,887 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 101 transitions. [2025-02-06 04:21:39,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 292 flow [2025-02-06 04:21:39,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 72 transitions, 286 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 04:21:39,901 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2025-02-06 04:21:39,903 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2025-02-06 04:21:39,907 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2025-02-06 04:21:39,908 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2025-02-06 04:21:39,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2025-02-06 04:21:39,908 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:21:39,909 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:21:39,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 04:21:39,909 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:21:39,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:21:39,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1005621435, now seen corresponding path program 1 times [2025-02-06 04:21:39,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:21:39,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417320943] [2025-02-06 04:21:39,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:21:39,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:21:39,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 04:21:39,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 04:21:40,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:21:40,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:21:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:21:40,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:21:40,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417320943] [2025-02-06 04:21:40,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417320943] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:21:40,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:21:40,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 04:21:40,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604695453] [2025-02-06 04:21:40,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:21:40,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:21:40,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:21:40,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:21:40,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:21:40,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:21:40,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 98 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) [2025-02-06 04:21:40,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:21:40,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:21:40,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:21:45,612 INFO L124 PetriNetUnfolderBase]: 59315/79103 cut-off events. [2025-02-06 04:21:45,613 INFO L125 PetriNetUnfolderBase]: For 3108/3108 co-relation queries the response was YES. [2025-02-06 04:21:45,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160709 conditions, 79103 events. 59315/79103 cut-off events. For 3108/3108 co-relation queries the response was YES. Maximal size of possible extension queue 2174. Compared 469393 event pairs, 13415 based on Foata normal form. 0/77988 useless extension candidates. Maximal degree in co-relation 160699. Up to 37153 conditions per place. [2025-02-06 04:21:46,007 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 54 selfloop transitions, 2 changer transitions 99/160 dead transitions. [2025-02-06 04:21:46,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 160 transitions, 654 flow [2025-02-06 04:21:46,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:21:46,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 04:21:46,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2025-02-06 04:21:46,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5725 [2025-02-06 04:21:46,010 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 8 states and 229 transitions. [2025-02-06 04:21:46,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 160 transitions, 654 flow [2025-02-06 04:21:46,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 160 transitions, 638 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 04:21:46,018 INFO L231 Difference]: Finished difference. Result has 64 places, 42 transitions, 108 flow [2025-02-06 04:21:46,019 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, 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=8, PETRI_FLOW=108, PETRI_PLACES=64, PETRI_TRANSITIONS=42} [2025-02-06 04:21:46,020 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2025-02-06 04:21:46,020 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 42 transitions, 108 flow [2025-02-06 04:21:46,020 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) [2025-02-06 04:21:46,020 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:21:46,021 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] [2025-02-06 04:21:46,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 04:21:46,021 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:21:46,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:21:46,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1922591563, now seen corresponding path program 1 times [2025-02-06 04:21:46,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:21:46,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086375845] [2025-02-06 04:21:46,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:21:46,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:21:46,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 04:21:46,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 04:21:46,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:21:46,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:21:46,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:21:46,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:21:46,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086375845] [2025-02-06 04:21:46,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086375845] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:21:46,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:21:46,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 04:21:46,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480608190] [2025-02-06 04:21:46,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:21:46,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:21:46,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:21:46,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:21:46,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:21:46,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:21:46,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 42 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2025-02-06 04:21:46,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:21:46,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:21:46,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:21:50,903 INFO L124 PetriNetUnfolderBase]: 44789/60195 cut-off events. [2025-02-06 04:21:50,903 INFO L125 PetriNetUnfolderBase]: For 8598/8598 co-relation queries the response was YES. [2025-02-06 04:21:51,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129368 conditions, 60195 events. 44789/60195 cut-off events. For 8598/8598 co-relation queries the response was YES. Maximal size of possible extension queue 1571. Compared 366212 event pairs, 9431 based on Foata normal form. 1080/61271 useless extension candidates. Maximal degree in co-relation 129353. Up to 49385 conditions per place. [2025-02-06 04:21:51,281 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 59 selfloop transitions, 3 changer transitions 65/132 dead transitions. [2025-02-06 04:21:51,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 132 transitions, 561 flow [2025-02-06 04:21:51,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 04:21:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 04:21:51,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2025-02-06 04:21:51,283 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5485714285714286 [2025-02-06 04:21:51,283 INFO L175 Difference]: Start difference. First operand has 64 places, 42 transitions, 108 flow. Second operand 7 states and 192 transitions. [2025-02-06 04:21:51,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 132 transitions, 561 flow [2025-02-06 04:21:52,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 132 transitions, 539 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-06 04:21:52,498 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 131 flow [2025-02-06 04:21:52,498 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=131, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2025-02-06 04:21:52,499 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 5 predicate places. [2025-02-06 04:21:52,499 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 131 flow [2025-02-06 04:21:52,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2025-02-06 04:21:52,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:21:52,500 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] [2025-02-06 04:21:52,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 04:21:52,500 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:21:52,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:21:52,501 INFO L85 PathProgramCache]: Analyzing trace with hash -882666255, now seen corresponding path program 1 times [2025-02-06 04:21:52,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:21:52,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350070801] [2025-02-06 04:21:52,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:21:52,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:21:52,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 04:21:52,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 04:21:52,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:21:52,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:21:53,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:21:53,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:21:53,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350070801] [2025-02-06 04:21:53,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350070801] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:21:53,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:21:53,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:21:53,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081199633] [2025-02-06 04:21:53,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:21:53,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:21:53,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:21:53,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:21:53,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:21:53,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:21:53,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 131 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) [2025-02-06 04:21:53,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:21:53,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:21:53,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:21:58,568 INFO L124 PetriNetUnfolderBase]: 46167/61915 cut-off events. [2025-02-06 04:21:58,568 INFO L125 PetriNetUnfolderBase]: For 26344/26347 co-relation queries the response was YES. [2025-02-06 04:21:59,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145001 conditions, 61915 events. 46167/61915 cut-off events. For 26344/26347 co-relation queries the response was YES. Maximal size of possible extension queue 1535. Compared 374404 event pairs, 9203 based on Foata normal form. 902/62813 useless extension candidates. Maximal degree in co-relation 144985. Up to 50275 conditions per place. [2025-02-06 04:21:59,209 INFO L140 encePairwiseOnDemand]: 36/50 looper letters, 75 selfloop transitions, 11 changer transitions 38/129 dead transitions. [2025-02-06 04:21:59,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 129 transitions, 587 flow [2025-02-06 04:21:59,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:21:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:21:59,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 179 transitions. [2025-02-06 04:21:59,211 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5966666666666667 [2025-02-06 04:21:59,211 INFO L175 Difference]: Start difference. First operand has 63 places, 44 transitions, 131 flow. Second operand 6 states and 179 transitions. [2025-02-06 04:21:59,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 129 transitions, 587 flow [2025-02-06 04:21:59,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 129 transitions, 578 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-02-06 04:21:59,680 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 194 flow [2025-02-06 04:21:59,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=194, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2025-02-06 04:21:59,681 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2025-02-06 04:21:59,681 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 194 flow [2025-02-06 04:21:59,681 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) [2025-02-06 04:21:59,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:21:59,682 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] [2025-02-06 04:21:59,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:21:59,682 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:21:59,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:21:59,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1300726701, now seen corresponding path program 2 times [2025-02-06 04:21:59,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:21:59,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126779005] [2025-02-06 04:21:59,683 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:21:59,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:21:59,696 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 1 equivalence classes. [2025-02-06 04:21:59,717 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 04:21:59,718 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:21:59,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:22:00,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:22:00,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:22:00,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126779005] [2025-02-06 04:22:00,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126779005] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:22:00,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:22:00,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:22:00,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003045699] [2025-02-06 04:22:00,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:22:00,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:22:00,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:22:00,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:22:00,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:22:00,392 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:22:00,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 194 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) [2025-02-06 04:22:00,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:22:00,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:22:00,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:22:05,502 INFO L124 PetriNetUnfolderBase]: 48073/64397 cut-off events. [2025-02-06 04:22:05,503 INFO L125 PetriNetUnfolderBase]: For 46090/46093 co-relation queries the response was YES. [2025-02-06 04:22:05,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172267 conditions, 64397 events. 48073/64397 cut-off events. For 46090/46093 co-relation queries the response was YES. Maximal size of possible extension queue 1620. Compared 388356 event pairs, 9359 based on Foata normal form. 998/65391 useless extension candidates. Maximal degree in co-relation 172249. Up to 49661 conditions per place. [2025-02-06 04:22:05,939 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 92 selfloop transitions, 9 changer transitions 65/171 dead transitions. [2025-02-06 04:22:05,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 171 transitions, 912 flow [2025-02-06 04:22:05,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:22:05,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 04:22:05,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 225 transitions. [2025-02-06 04:22:05,944 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5625 [2025-02-06 04:22:05,944 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 194 flow. Second operand 8 states and 225 transitions. [2025-02-06 04:22:05,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 171 transitions, 912 flow [2025-02-06 04:22:06,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 171 transitions, 884 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-02-06 04:22:06,432 INFO L231 Difference]: Finished difference. Result has 70 places, 58 transitions, 266 flow [2025-02-06 04:22:06,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=266, PETRI_PLACES=70, PETRI_TRANSITIONS=58} [2025-02-06 04:22:06,433 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2025-02-06 04:22:06,433 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 58 transitions, 266 flow [2025-02-06 04:22:06,433 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) [2025-02-06 04:22:06,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:22:06,434 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] [2025-02-06 04:22:06,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 04:22:06,434 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:22:06,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:22:06,434 INFO L85 PathProgramCache]: Analyzing trace with hash 171863669, now seen corresponding path program 1 times [2025-02-06 04:22:06,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:22:06,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14104876] [2025-02-06 04:22:06,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:22:06,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:22:06,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 04:22:06,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 04:22:06,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:22:06,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:22:06,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:22:06,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:22:06,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14104876] [2025-02-06 04:22:06,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14104876] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:22:06,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:22:06,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:22:06,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672082065] [2025-02-06 04:22:06,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:22:06,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:22:06,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:22:06,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:22:06,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:22:06,882 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:22:06,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 58 transitions, 266 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 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) [2025-02-06 04:22:06,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:22:06,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:22:06,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand