./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c --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/weaver/popl20-bad-commit-1.wvr-bad.c -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 83c7202603a0719c5812e4d7043f4665de4d954c89c656bd6312ac9e8fdcb494 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:37:40,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:37:40,460 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 04:37:40,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:37:40,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:37:40,489 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:37:40,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:37:40,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:37:40,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:37:40,491 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:37:40,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:37:40,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:37:40,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:37:40,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:37:40,492 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:37:40,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:37:40,493 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:37:40,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:37:40,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:37:40,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:37:40,494 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 -> 83c7202603a0719c5812e4d7043f4665de4d954c89c656bd6312ac9e8fdcb494 [2025-02-06 04:37:40,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:37:40,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:37:40,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:37:40,743 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:37:40,743 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:37:40,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c [2025-02-06 04:37:41,919 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6141262f1/a02d571d554b443c8c355f73ed8c54e3/FLAG94bced917 [2025-02-06 04:37:42,159 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:37:42,160 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-commit-1.wvr-bad.c [2025-02-06 04:37:42,167 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6141262f1/a02d571d554b443c8c355f73ed8c54e3/FLAG94bced917 [2025-02-06 04:37:42,474 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6141262f1/a02d571d554b443c8c355f73ed8c54e3 [2025-02-06 04:37:42,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:37:42,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:37:42,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:37:42,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:37:42,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:37:42,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f59976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42, skipping insertion in model container [2025-02-06 04:37:42,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,493 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:37:42,616 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/weaver/popl20-bad-commit-1.wvr-bad.c[5161,5174] [2025-02-06 04:37:42,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:37:42,630 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:37:42,646 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/weaver/popl20-bad-commit-1.wvr-bad.c[5161,5174] [2025-02-06 04:37:42,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:37:42,658 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:37:42,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42 WrapperNode [2025-02-06 04:37:42,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:37:42,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:37:42,659 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:37:42,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:37:42,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,685 INFO L138 Inliner]: procedures = 24, calls = 53, calls flagged for inlining = 20, calls inlined = 24, statements flattened = 325 [2025-02-06 04:37:42,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:37:42,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:37:42,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:37:42,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:37:42,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,695 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,711 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2025-02-06 04:37:42,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,721 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:37:42,734 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:37:42,734 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:37:42,734 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:37:42,735 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (1/1) ... [2025-02-06 04:37:42,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:37:42,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:37:42,759 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 04:37:42,761 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 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 04:37:42,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 04:37:42,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 04:37:42,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:37:42,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:37:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:37:42,783 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 04:37:42,892 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:37:42,893 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:37:43,249 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 04:37:43,250 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:37:43,517 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:37:43,518 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:37:43,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:37:43 BoogieIcfgContainer [2025-02-06 04:37:43,518 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:37:43,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:37:43,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:37:43,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:37:43,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:37:42" (1/3) ... [2025-02-06 04:37:43,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@939aaec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:37:43, skipping insertion in model container [2025-02-06 04:37:43,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:37:42" (2/3) ... [2025-02-06 04:37:43,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@939aaec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:37:43, skipping insertion in model container [2025-02-06 04:37:43,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:37:43" (3/3) ... [2025-02-06 04:37:43,528 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-1.wvr-bad.c [2025-02-06 04:37:43,539 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:37:43,541 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-commit-1.wvr-bad.c that has 4 procedures, 45 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2025-02-06 04:37:43,541 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 04:37:43,591 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 04:37:43,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 61 transitions, 143 flow [2025-02-06 04:37:43,652 INFO L124 PetriNetUnfolderBase]: 17/58 cut-off events. [2025-02-06 04:37:43,656 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 04:37:43,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 58 events. 17/58 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 114 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 48. Up to 6 conditions per place. [2025-02-06 04:37:43,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 61 transitions, 143 flow [2025-02-06 04:37:43,660 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 57 transitions, 132 flow [2025-02-06 04:37:43,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:37:43,672 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;@33d4debc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:37:43,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-06 04:37:43,687 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 04:37:43,687 INFO L124 PetriNetUnfolderBase]: 17/56 cut-off events. [2025-02-06 04:37:43,687 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 04:37:43,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:37:43,688 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] [2025-02-06 04:37:43,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:37:43,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:37:43,692 INFO L85 PathProgramCache]: Analyzing trace with hash 536192061, now seen corresponding path program 1 times [2025-02-06 04:37:43,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:37:43,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449402107] [2025-02-06 04:37:43,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:37:43,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:37:43,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 04:37:43,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 04:37:43,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:37:43,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:37:43,891 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 04:37:43,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:37:43,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449402107] [2025-02-06 04:37:43,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449402107] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:37:43,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:37:43,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 04:37:43,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790611491] [2025-02-06 04:37:43,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:37:43,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 04:37:43,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:37:43,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 04:37:43,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 04:37:43,920 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 61 [2025-02-06 04:37:43,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 57 transitions, 132 flow. Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 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 04:37:43,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:37:43,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 61 [2025-02-06 04:37:43,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:37:44,197 INFO L124 PetriNetUnfolderBase]: 1163/1704 cut-off events. [2025-02-06 04:37:44,197 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2025-02-06 04:37:44,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3249 conditions, 1704 events. 1163/1704 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 6730 event pairs, 608 based on Foata normal form. 0/1341 useless extension candidates. Maximal degree in co-relation 2998. Up to 1448 conditions per place. [2025-02-06 04:37:44,213 INFO L140 encePairwiseOnDemand]: 58/61 looper letters, 37 selfloop transitions, 0 changer transitions 0/54 dead transitions. [2025-02-06 04:37:44,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 200 flow [2025-02-06 04:37:44,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 04:37:44,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 04:37:44,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 80 transitions. [2025-02-06 04:37:44,222 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6557377049180327 [2025-02-06 04:37:44,223 INFO L175 Difference]: Start difference. First operand has 50 places, 57 transitions, 132 flow. Second operand 2 states and 80 transitions. [2025-02-06 04:37:44,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 200 flow [2025-02-06 04:37:44,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 188 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-06 04:37:44,229 INFO L231 Difference]: Finished difference. Result has 45 places, 54 transitions, 114 flow [2025-02-06 04:37:44,231 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=114, PETRI_PLACES=45, PETRI_TRANSITIONS=54} [2025-02-06 04:37:44,233 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, -5 predicate places. [2025-02-06 04:37:44,233 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 54 transitions, 114 flow [2025-02-06 04:37:44,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 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 04:37:44,234 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:37:44,234 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:37:44,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 04:37:44,234 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:37:44,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:37:44,235 INFO L85 PathProgramCache]: Analyzing trace with hash -288712845, now seen corresponding path program 1 times [2025-02-06 04:37:44,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:37:44,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797934946] [2025-02-06 04:37:44,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:37:44,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:37:44,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:37:44,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:37:44,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:37:44,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:37:44,434 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 04:37:44,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:37:44,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797934946] [2025-02-06 04:37:44,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797934946] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:37:44,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:37:44,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 04:37:44,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51559203] [2025-02-06 04:37:44,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:37:44,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:37:44,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:37:44,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:37:44,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:37:44,436 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 61 [2025-02-06 04:37:44,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 54 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 04:37:44,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:37:44,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 61 [2025-02-06 04:37:44,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:37:44,741 INFO L124 PetriNetUnfolderBase]: 2322/3638 cut-off events. [2025-02-06 04:37:44,741 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-02-06 04:37:44,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6587 conditions, 3638 events. 2322/3638 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 18687 event pairs, 608 based on Foata normal form. 1/2845 useless extension candidates. Maximal degree in co-relation 6584. Up to 1685 conditions per place. [2025-02-06 04:37:44,754 INFO L140 encePairwiseOnDemand]: 55/61 looper letters, 59 selfloop transitions, 5 changer transitions 1/82 dead transitions. [2025-02-06 04:37:44,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 82 transitions, 305 flow [2025-02-06 04:37:44,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:37:44,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:37:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2025-02-06 04:37:44,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6885245901639344 [2025-02-06 04:37:44,756 INFO L175 Difference]: Start difference. First operand has 45 places, 54 transitions, 114 flow. Second operand 3 states and 126 transitions. [2025-02-06 04:37:44,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 82 transitions, 305 flow [2025-02-06 04:37:44,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 82 transitions, 305 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 04:37:44,758 INFO L231 Difference]: Finished difference. Result has 48 places, 58 transitions, 147 flow [2025-02-06 04:37:44,758 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=48, PETRI_TRANSITIONS=58} [2025-02-06 04:37:44,759 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, -2 predicate places. [2025-02-06 04:37:44,759 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 58 transitions, 147 flow [2025-02-06 04:37:44,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 04:37:44,759 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:37:44,759 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:37:44,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 04:37:44,760 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:37:44,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:37:44,760 INFO L85 PathProgramCache]: Analyzing trace with hash -372478545, now seen corresponding path program 1 times [2025-02-06 04:37:44,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:37:44,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542919615] [2025-02-06 04:37:44,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:37:44,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:37:44,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 04:37:44,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 04:37:44,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:37:44,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:37:44,858 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 04:37:44,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:37:44,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542919615] [2025-02-06 04:37:44,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542919615] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:37:44,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:37:44,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 04:37:44,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347470177] [2025-02-06 04:37:44,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:37:44,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:37:44,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:37:44,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:37:44,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:37:44,859 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 61 [2025-02-06 04:37:44,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 58 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 04:37:44,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:37:44,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 61 [2025-02-06 04:37:44,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:37:45,317 INFO L124 PetriNetUnfolderBase]: 4366/6626 cut-off events. [2025-02-06 04:37:45,317 INFO L125 PetriNetUnfolderBase]: For 1033/1033 co-relation queries the response was YES. [2025-02-06 04:37:45,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13266 conditions, 6626 events. 4366/6626 cut-off events. For 1033/1033 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 35730 event pairs, 1536 based on Foata normal form. 236/5382 useless extension candidates. Maximal degree in co-relation 13261. Up to 3068 conditions per place. [2025-02-06 04:37:45,350 INFO L140 encePairwiseOnDemand]: 56/61 looper letters, 65 selfloop transitions, 3 changer transitions 0/85 dead transitions. [2025-02-06 04:37:45,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 85 transitions, 353 flow [2025-02-06 04:37:45,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:37:45,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:37:45,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2025-02-06 04:37:45,353 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6775956284153005 [2025-02-06 04:37:45,353 INFO L175 Difference]: Start difference. First operand has 48 places, 58 transitions, 147 flow. Second operand 3 states and 124 transitions. [2025-02-06 04:37:45,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 85 transitions, 353 flow [2025-02-06 04:37:45,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 85 transitions, 346 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 04:37:45,357 INFO L231 Difference]: Finished difference. Result has 50 places, 60 transitions, 167 flow [2025-02-06 04:37:45,357 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=50, PETRI_TRANSITIONS=60} [2025-02-06 04:37:45,357 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 0 predicate places. [2025-02-06 04:37:45,358 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 60 transitions, 167 flow [2025-02-06 04:37:45,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 04:37:45,358 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:37:45,358 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:37:45,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 04:37:45,359 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:37:45,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:37:45,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2052771473, now seen corresponding path program 1 times [2025-02-06 04:37:45,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:37:45,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167495711] [2025-02-06 04:37:45,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:37:45,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:37:45,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 04:37:45,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 04:37:45,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:37:45,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:37:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:37:45,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:37:45,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167495711] [2025-02-06 04:37:45,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167495711] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:37:45,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:37:45,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 04:37:45,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585039313] [2025-02-06 04:37:45,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:37:45,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:37:45,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:37:45,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:37:45,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:37:45,465 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 61 [2025-02-06 04:37:45,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 60 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 04:37:45,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:37:45,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 61 [2025-02-06 04:37:45,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:37:46,258 INFO L124 PetriNetUnfolderBase]: 8300/13328 cut-off events. [2025-02-06 04:37:46,258 INFO L125 PetriNetUnfolderBase]: For 3336/3360 co-relation queries the response was YES. [2025-02-06 04:37:46,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27078 conditions, 13328 events. 8300/13328 cut-off events. For 3336/3360 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 88033 event pairs, 2722 based on Foata normal form. 245/10625 useless extension candidates. Maximal degree in co-relation 27072. Up to 5665 conditions per place. [2025-02-06 04:37:46,333 INFO L140 encePairwiseOnDemand]: 58/61 looper letters, 74 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2025-02-06 04:37:46,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 93 transitions, 422 flow [2025-02-06 04:37:46,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:37:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:37:46,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2025-02-06 04:37:46,335 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6885245901639344 [2025-02-06 04:37:46,335 INFO L175 Difference]: Start difference. First operand has 50 places, 60 transitions, 167 flow. Second operand 3 states and 126 transitions. [2025-02-06 04:37:46,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 93 transitions, 422 flow [2025-02-06 04:37:46,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 93 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 04:37:46,338 INFO L231 Difference]: Finished difference. Result has 52 places, 61 transitions, 178 flow [2025-02-06 04:37:46,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=52, PETRI_TRANSITIONS=61} [2025-02-06 04:37:46,340 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2025-02-06 04:37:46,340 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 61 transitions, 178 flow [2025-02-06 04:37:46,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 04:37:46,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:37:46,341 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:37:46,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:37:46,342 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:37:46,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:37:46,342 INFO L85 PathProgramCache]: Analyzing trace with hash -654099839, now seen corresponding path program 1 times [2025-02-06 04:37:46,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:37:46,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675320752] [2025-02-06 04:37:46,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:37:46,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:37:46,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 04:37:46,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 04:37:46,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:37:46,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:37:46,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:37:46,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:37:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675320752] [2025-02-06 04:37:46,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675320752] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:37:46,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:37:46,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 04:37:46,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312949616] [2025-02-06 04:37:46,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:37:46,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:37:46,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:37:46,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:37:46,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:37:46,422 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 61 [2025-02-06 04:37:46,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 61 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 04:37:46,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:37:46,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 61 [2025-02-06 04:37:46,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:37:47,440 INFO L124 PetriNetUnfolderBase]: 13306/19339 cut-off events. [2025-02-06 04:37:47,440 INFO L125 PetriNetUnfolderBase]: For 6492/6506 co-relation queries the response was YES. [2025-02-06 04:37:47,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42408 conditions, 19339 events. 13306/19339 cut-off events. For 6492/6506 co-relation queries the response was YES. Maximal size of possible extension queue 641. Compared 113386 event pairs, 6178 based on Foata normal form. 0/15600 useless extension candidates. Maximal degree in co-relation 42401. Up to 10586 conditions per place. [2025-02-06 04:37:47,528 INFO L140 encePairwiseOnDemand]: 56/61 looper letters, 69 selfloop transitions, 6 changer transitions 0/89 dead transitions. [2025-02-06 04:37:47,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 89 transitions, 420 flow [2025-02-06 04:37:47,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:37:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:37:47,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2025-02-06 04:37:47,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6338797814207651 [2025-02-06 04:37:47,530 INFO L175 Difference]: Start difference. First operand has 52 places, 61 transitions, 178 flow. Second operand 3 states and 116 transitions. [2025-02-06 04:37:47,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 89 transitions, 420 flow [2025-02-06 04:37:47,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 89 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 04:37:47,533 INFO L231 Difference]: Finished difference. Result has 55 places, 62 transitions, 206 flow [2025-02-06 04:37:47,533 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=55, PETRI_TRANSITIONS=62} [2025-02-06 04:37:47,534 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 5 predicate places. [2025-02-06 04:37:47,534 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 62 transitions, 206 flow [2025-02-06 04:37:47,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 04:37:47,534 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:37:47,534 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:37:47,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 04:37:47,535 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:37:47,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:37:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1972123043, now seen corresponding path program 1 times [2025-02-06 04:37:47,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:37:47,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618821244] [2025-02-06 04:37:47,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:37:47,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:37:47,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-06 04:37:47,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-06 04:37:47,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:37:47,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:37:47,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:37:47,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:37:47,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618821244] [2025-02-06 04:37:47,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618821244] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:37:47,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:37:47,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 04:37:47,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691751973] [2025-02-06 04:37:47,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:37:47,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 04:37:47,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:37:47,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 04:37:47,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 04:37:47,694 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 61 [2025-02-06 04:37:47,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 62 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 04:37:47,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:37:47,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 61 [2025-02-06 04:37:47,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:37:48,763 INFO L124 PetriNetUnfolderBase]: 12900/19830 cut-off events. [2025-02-06 04:37:48,764 INFO L125 PetriNetUnfolderBase]: For 9542/9724 co-relation queries the response was YES. [2025-02-06 04:37:48,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43792 conditions, 19830 events. 12900/19830 cut-off events. For 9542/9724 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 128386 event pairs, 9082 based on Foata normal form. 318/16318 useless extension candidates. Maximal degree in co-relation 43784. Up to 13549 conditions per place. [2025-02-06 04:37:48,835 INFO L140 encePairwiseOnDemand]: 56/61 looper letters, 74 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2025-02-06 04:37:48,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 95 transitions, 446 flow [2025-02-06 04:37:48,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 04:37:48,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 04:37:48,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2025-02-06 04:37:48,837 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6147540983606558 [2025-02-06 04:37:48,837 INFO L175 Difference]: Start difference. First operand has 55 places, 62 transitions, 206 flow. Second operand 4 states and 150 transitions. [2025-02-06 04:37:48,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 95 transitions, 446 flow [2025-02-06 04:37:48,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 95 transitions, 434 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 04:37:48,848 INFO L231 Difference]: Finished difference. Result has 58 places, 64 transitions, 216 flow [2025-02-06 04:37:48,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=58, PETRI_TRANSITIONS=64} [2025-02-06 04:37:48,849 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 8 predicate places. [2025-02-06 04:37:48,849 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 64 transitions, 216 flow [2025-02-06 04:37:48,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 04:37:48,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:37:48,849 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:37:48,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 04:37:48,849 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:37:48,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:37:48,850 INFO L85 PathProgramCache]: Analyzing trace with hash -929131362, now seen corresponding path program 1 times [2025-02-06 04:37:48,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:37:48,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460676196] [2025-02-06 04:37:48,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:37:48,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:37:48,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 04:37:48,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 04:37:48,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:37:48,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:37:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:37:49,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:37:49,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460676196] [2025-02-06 04:37:49,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460676196] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:37:49,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085944481] [2025-02-06 04:37:49,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:37:49,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:37:49,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:37:49,416 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:37:49,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 04:37:49,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 04:37:49,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 04:37:49,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:37:49,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:37:49,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-06 04:37:49,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:37:49,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 04:37:49,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:37:49,876 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 04:37:50,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2025-02-06 04:37:50,309 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-02-06 04:37:50,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 41 [2025-02-06 04:37:50,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:37:50,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085944481] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 04:37:50,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 04:37:50,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 20 [2025-02-06 04:37:50,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132276764] [2025-02-06 04:37:50,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 04:37:50,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-06 04:37:50,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:37:50,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-06 04:37:50,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2025-02-06 04:37:50,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 61 [2025-02-06 04:37:50,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 64 transitions, 216 flow. Second operand has 21 states, 21 states have (on average 24.285714285714285) internal successors, (510), 21 states have internal predecessors, (510), 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 04:37:50,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:37:50,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 61 [2025-02-06 04:37:50,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:37:55,624 INFO L124 PetriNetUnfolderBase]: 48122/72940 cut-off events. [2025-02-06 04:37:55,624 INFO L125 PetriNetUnfolderBase]: For 33599/35013 co-relation queries the response was YES. [2025-02-06 04:37:55,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162345 conditions, 72940 events. 48122/72940 cut-off events. For 33599/35013 co-relation queries the response was YES. Maximal size of possible extension queue 2258. Compared 544048 event pairs, 7809 based on Foata normal form. 132/58291 useless extension candidates. Maximal degree in co-relation 162335. Up to 11256 conditions per place. [2025-02-06 04:37:55,916 INFO L140 encePairwiseOnDemand]: 41/61 looper letters, 491 selfloop transitions, 134 changer transitions 10/653 dead transitions. [2025-02-06 04:37:55,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 653 transitions, 3182 flow [2025-02-06 04:37:55,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-02-06 04:37:55,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2025-02-06 04:37:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 1325 transitions. [2025-02-06 04:37:55,920 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6033697632058288 [2025-02-06 04:37:55,920 INFO L175 Difference]: Start difference. First operand has 58 places, 64 transitions, 216 flow. Second operand 36 states and 1325 transitions. [2025-02-06 04:37:55,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 653 transitions, 3182 flow [2025-02-06 04:37:55,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 653 transitions, 3178 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-06 04:37:55,939 INFO L231 Difference]: Finished difference. Result has 118 places, 199 transitions, 1380 flow [2025-02-06 04:37:55,939 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=1380, PETRI_PLACES=118, PETRI_TRANSITIONS=199} [2025-02-06 04:37:55,939 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 68 predicate places. [2025-02-06 04:37:55,940 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 199 transitions, 1380 flow [2025-02-06 04:37:55,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 24.285714285714285) internal successors, (510), 21 states have internal predecessors, (510), 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 04:37:55,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:37:55,940 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:37:55,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 04:37:56,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:37:56,145 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:37:56,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:37:56,146 INFO L85 PathProgramCache]: Analyzing trace with hash -253612935, now seen corresponding path program 1 times [2025-02-06 04:37:56,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:37:56,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688028053] [2025-02-06 04:37:56,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:37:56,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:37:56,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 04:37:56,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 04:37:56,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:37:56,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:37:56,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:37:56,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:37:56,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688028053] [2025-02-06 04:37:56,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688028053] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:37:56,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:37:56,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 04:37:56,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224790948] [2025-02-06 04:37:56,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:37:56,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:37:56,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:37:56,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:37:56,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:37:56,187 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 61 [2025-02-06 04:37:56,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 199 transitions, 1380 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 04:37:56,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:37:56,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 61 [2025-02-06 04:37:56,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:38:03,009 INFO L124 PetriNetUnfolderBase]: 64061/92440 cut-off events. [2025-02-06 04:38:03,010 INFO L125 PetriNetUnfolderBase]: For 644935/647925 co-relation queries the response was YES. [2025-02-06 04:38:03,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435140 conditions, 92440 events. 64061/92440 cut-off events. For 644935/647925 co-relation queries the response was YES. Maximal size of possible extension queue 1933. Compared 617710 event pairs, 23996 based on Foata normal form. 160/77312 useless extension candidates. Maximal degree in co-relation 435104. Up to 42516 conditions per place. [2025-02-06 04:38:03,908 INFO L140 encePairwiseOnDemand]: 56/61 looper letters, 133 selfloop transitions, 14 changer transitions 22/182 dead transitions. [2025-02-06 04:38:03,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 182 transitions, 1602 flow [2025-02-06 04:38:03,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:38:03,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:38:03,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2025-02-06 04:38:03,909 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6120218579234973 [2025-02-06 04:38:03,909 INFO L175 Difference]: Start difference. First operand has 118 places, 199 transitions, 1380 flow. Second operand 3 states and 112 transitions. [2025-02-06 04:38:03,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 182 transitions, 1602 flow [2025-02-06 04:38:04,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 182 transitions, 1472 flow, removed 63 selfloop flow, removed 10 redundant places. [2025-02-06 04:38:04,635 INFO L231 Difference]: Finished difference. Result has 102 places, 129 transitions, 854 flow [2025-02-06 04:38:04,635 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=854, PETRI_PLACES=102, PETRI_TRANSITIONS=129} [2025-02-06 04:38:04,635 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 52 predicate places. [2025-02-06 04:38:04,635 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 129 transitions, 854 flow [2025-02-06 04:38:04,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 04:38:04,636 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:38:04,636 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:38:04,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 04:38:04,636 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:38:04,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:38:04,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1012454617, now seen corresponding path program 1 times [2025-02-06 04:38:04,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:38:04,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987052635] [2025-02-06 04:38:04,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:38:04,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:38:04,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 04:38:04,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 04:38:04,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:38:04,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:38:04,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:38:04,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:38:04,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987052635] [2025-02-06 04:38:04,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987052635] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:38:04,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:38:04,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 04:38:04,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732375407] [2025-02-06 04:38:04,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:38:04,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:38:04,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:38:04,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:38:04,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:38:04,693 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 61 [2025-02-06 04:38:04,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 129 transitions, 854 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 04:38:04,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:38:04,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 61 [2025-02-06 04:38:04,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:38:12,153 INFO L124 PetriNetUnfolderBase]: 69635/104829 cut-off events. [2025-02-06 04:38:12,154 INFO L125 PetriNetUnfolderBase]: For 279622/284419 co-relation queries the response was YES. [2025-02-06 04:38:12,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369915 conditions, 104829 events. 69635/104829 cut-off events. For 279622/284419 co-relation queries the response was YES. Maximal size of possible extension queue 2158. Compared 774740 event pairs, 35729 based on Foata normal form. 148/84728 useless extension candidates. Maximal degree in co-relation 369886. Up to 64954 conditions per place. [2025-02-06 04:38:12,899 INFO L140 encePairwiseOnDemand]: 56/61 looper letters, 134 selfloop transitions, 7 changer transitions 2/159 dead transitions. [2025-02-06 04:38:12,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 159 transitions, 1365 flow [2025-02-06 04:38:12,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:38:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:38:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2025-02-06 04:38:12,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6338797814207651 [2025-02-06 04:38:12,901 INFO L175 Difference]: Start difference. First operand has 102 places, 129 transitions, 854 flow. Second operand 3 states and 116 transitions. [2025-02-06 04:38:12,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 159 transitions, 1365 flow [2025-02-06 04:38:13,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 159 transitions, 1259 flow, removed 34 selfloop flow, removed 8 redundant places. [2025-02-06 04:38:13,290 INFO L231 Difference]: Finished difference. Result has 91 places, 122 transitions, 762 flow [2025-02-06 04:38:13,290 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=91, PETRI_TRANSITIONS=122} [2025-02-06 04:38:13,291 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 41 predicate places. [2025-02-06 04:38:13,291 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 122 transitions, 762 flow [2025-02-06 04:38:13,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 04:38:13,291 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:38:13,291 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:38:13,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 04:38:13,291 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:38:13,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:38:13,292 INFO L85 PathProgramCache]: Analyzing trace with hash 251367654, now seen corresponding path program 1 times [2025-02-06 04:38:13,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:38:13,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81444507] [2025-02-06 04:38:13,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:38:13,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:38:13,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 04:38:13,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 04:38:13,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:38:13,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:38:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 04:38:13,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:38:13,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81444507] [2025-02-06 04:38:13,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81444507] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:38:13,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:38:13,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 04:38:13,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371894668] [2025-02-06 04:38:13,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:38:13,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:38:13,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:38:13,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:38:13,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:38:13,341 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 61 [2025-02-06 04:38:13,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 122 transitions, 762 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 04:38:13,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:38:13,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 61 [2025-02-06 04:38:13,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:38:20,420 INFO L124 PetriNetUnfolderBase]: 63815/99118 cut-off events. [2025-02-06 04:38:20,420 INFO L125 PetriNetUnfolderBase]: For 245420/252858 co-relation queries the response was YES. [2025-02-06 04:38:20,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311037 conditions, 99118 events. 63815/99118 cut-off events. For 245420/252858 co-relation queries the response was YES. Maximal size of possible extension queue 1906. Compared 755678 event pairs, 19206 based on Foata normal form. 1152/79902 useless extension candidates. Maximal degree in co-relation 311013. Up to 59172 conditions per place. [2025-02-06 04:38:21,024 INFO L140 encePairwiseOnDemand]: 58/61 looper letters, 135 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2025-02-06 04:38:21,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 157 transitions, 1278 flow [2025-02-06 04:38:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:38:21,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:38:21,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2025-02-06 04:38:21,025 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-06 04:38:21,025 INFO L175 Difference]: Start difference. First operand has 91 places, 122 transitions, 762 flow. Second operand 3 states and 122 transitions. [2025-02-06 04:38:21,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 157 transitions, 1278 flow [2025-02-06 04:38:21,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 157 transitions, 1254 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 04:38:21,397 INFO L231 Difference]: Finished difference. Result has 91 places, 119 transitions, 731 flow [2025-02-06 04:38:21,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=731, PETRI_PLACES=91, PETRI_TRANSITIONS=119} [2025-02-06 04:38:21,398 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 41 predicate places. [2025-02-06 04:38:21,398 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 119 transitions, 731 flow [2025-02-06 04:38:21,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 04:38:21,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:38:21,398 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:38:21,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 04:38:21,399 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:38:21,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:38:21,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1167948215, now seen corresponding path program 1 times [2025-02-06 04:38:21,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:38:21,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598924645] [2025-02-06 04:38:21,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:38:21,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:38:21,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-06 04:38:21,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 04:38:21,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:38:21,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:38:22,325 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:38:22,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:38:22,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598924645] [2025-02-06 04:38:22,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598924645] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:38:22,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352263669] [2025-02-06 04:38:22,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:38:22,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:38:22,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:38:22,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:38:22,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process