./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-counter-fun.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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-counter-fun.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbe9f324c9eba6beb8c990e3f85f0b00a68548fe05ffdb4e97bc061354d1cdf2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:51:56,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:51:56,589 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:51:56,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:51:56,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:51:56,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:51:56,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:51:56,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:51:56,619 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:51:56,619 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:51:56,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:51:56,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:51:56,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:51:56,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:51:56,620 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:51:56,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:51:56,620 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:51:56,620 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:51:56,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:51:56,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:51:56,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:51:56,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:51:56,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:51:56,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:51:56,624 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:51:56,624 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:51:56,624 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:51:56,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:51:56,624 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:51:56,624 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:51:56,625 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:51:56,625 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:51:56,625 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:51:56,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:51:56,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:51:56,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:51:56,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:51:56,626 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:51:56,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:51:56,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:51:56,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:51:56,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:51:56,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:51:56,626 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:51:56,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:51:56,626 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 ! overflow) ) 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 -> fbe9f324c9eba6beb8c990e3f85f0b00a68548fe05ffdb4e97bc061354d1cdf2 [2025-02-06 18:51:56,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:51:56,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:51:56,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:51:56,943 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:51:56,944 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:51:56,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-counter-fun.wvr.c [2025-02-06 18:51:58,207 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c94aa18c2/db6a14e7c86a4461a24043a5f71db241/FLAG4146d740b [2025-02-06 18:51:58,465 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:51:58,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-counter-fun.wvr.c [2025-02-06 18:51:58,484 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c94aa18c2/db6a14e7c86a4461a24043a5f71db241/FLAG4146d740b [2025-02-06 18:51:58,761 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c94aa18c2/db6a14e7c86a4461a24043a5f71db241 [2025-02-06 18:51:58,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:51:58,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:51:58,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:51:58,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:51:58,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:51:58,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:51:58" (1/1) ... [2025-02-06 18:51:58,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e9330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:58, skipping insertion in model container [2025-02-06 18:51:58,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:51:58" (1/1) ... [2025-02-06 18:51:58,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:51:58,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:51:58,968 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:51:58,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:51:59,013 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:51:59,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59 WrapperNode [2025-02-06 18:51:59,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:51:59,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:51:59,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:51:59,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:51:59,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,058 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 14, calls inlined = 16, statements flattened = 189 [2025-02-06 18:51:59,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:51:59,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:51:59,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:51:59,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:51:59,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,072 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,095 INFO L175 MemorySlicer]: Split 14 memory accesses to 2 slices as follows [2, 12]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-02-06 18:51:59,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,096 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,103 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,110 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:51:59,117 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:51:59,120 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:51:59,121 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:51:59,122 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (1/1) ... [2025-02-06 18:51:59,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:51:59,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:51:59,156 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 18:51:59,162 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 18:51:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:51:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 18:51:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 18:51:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 18:51:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 18:51:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:51:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:51:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:51:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:51:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:51:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:51:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:51:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:51:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:51:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:51:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:51:59,188 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 18:51:59,274 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:51:59,276 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:51:59,578 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:51:59,578 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:51:59,799 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:51:59,800 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:51:59,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:51:59 BoogieIcfgContainer [2025-02-06 18:51:59,800 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:51:59,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:51:59,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:51:59,806 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:51:59,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:51:58" (1/3) ... [2025-02-06 18:51:59,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b2ca3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:51:59, skipping insertion in model container [2025-02-06 18:51:59,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:51:59" (2/3) ... [2025-02-06 18:51:59,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b2ca3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:51:59, skipping insertion in model container [2025-02-06 18:51:59,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:51:59" (3/3) ... [2025-02-06 18:51:59,809 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-counter-fun.wvr.c [2025-02-06 18:51:59,836 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:51:59,837 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-counter-fun.wvr.c that has 3 procedures, 37 locations, 1 initial locations, 4 loop locations, and 8 error locations. [2025-02-06 18:51:59,838 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:51:59,902 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 18:51:59,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 40 transitions, 94 flow [2025-02-06 18:51:59,977 INFO L124 PetriNetUnfolderBase]: 4/38 cut-off events. [2025-02-06 18:51:59,980 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 18:51:59,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 38 events. 4/38 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2025-02-06 18:51:59,986 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 40 transitions, 94 flow [2025-02-06 18:51:59,991 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 36 transitions, 81 flow [2025-02-06 18:52:00,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:52:00,016 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;@77e5d7a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:52:00,017 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-02-06 18:52:00,021 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:52:00,022 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:52:00,022 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:52:00,022 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:00,024 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:52:00,024 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:00,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash 527197, now seen corresponding path program 1 times [2025-02-06 18:52:00,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:00,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508592741] [2025-02-06 18:52:00,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:00,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:00,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:52:00,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:52:00,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:00,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:00,279 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 18:52:00,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:00,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508592741] [2025-02-06 18:52:00,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508592741] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:52:00,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:52:00,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:52:00,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250292553] [2025-02-06 18:52:00,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:52:00,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:52:00,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:00,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:52:00,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:52:00,338 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2025-02-06 18:52:00,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 18:52:00,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:00,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2025-02-06 18:52:00,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:00,466 INFO L124 PetriNetUnfolderBase]: 65/171 cut-off events. [2025-02-06 18:52:00,467 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-02-06 18:52:00,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 171 events. 65/171 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 655 event pairs, 42 based on Foata normal form. 2/154 useless extension candidates. Maximal degree in co-relation 245. Up to 118 conditions per place. [2025-02-06 18:52:00,472 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 23 selfloop transitions, 7 changer transitions 0/42 dead transitions. [2025-02-06 18:52:00,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 42 transitions, 153 flow [2025-02-06 18:52:00,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:52:00,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:52:00,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2025-02-06 18:52:00,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5625 [2025-02-06 18:52:00,488 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 81 flow. Second operand 4 states and 90 transitions. [2025-02-06 18:52:00,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 42 transitions, 153 flow [2025-02-06 18:52:00,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:52:00,496 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 136 flow [2025-02-06 18:52:00,498 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2025-02-06 18:52:00,501 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 3 predicate places. [2025-02-06 18:52:00,501 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 136 flow [2025-02-06 18:52:00,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 18:52:00,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:00,502 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:52:00,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:52:00,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:00,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:00,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1473666132, now seen corresponding path program 1 times [2025-02-06 18:52:00,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:00,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894326791] [2025-02-06 18:52:00,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:00,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:00,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:52:00,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:52:00,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:00,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:00,654 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 18:52:00,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:00,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894326791] [2025-02-06 18:52:00,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894326791] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:00,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483627118] [2025-02-06 18:52:00,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:00,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:00,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:00,658 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 18:52:00,659 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 18:52:00,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:52:00,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:52:00,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:00,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:00,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:52:00,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:52:00,781 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:52:00,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483627118] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:52:00,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:52:00,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:52:00,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507473228] [2025-02-06 18:52:00,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:52:00,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:52:00,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:00,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:52:00,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:52:00,804 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2025-02-06 18:52:00,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 136 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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 18:52:00,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:00,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2025-02-06 18:52:00,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:00,974 INFO L124 PetriNetUnfolderBase]: 65/169 cut-off events. [2025-02-06 18:52:00,979 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-02-06 18:52:00,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 169 events. 65/169 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 637 event pairs, 42 based on Foata normal form. 2/155 useless extension candidates. Maximal degree in co-relation 275. Up to 108 conditions per place. [2025-02-06 18:52:00,981 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 16 selfloop transitions, 12 changer transitions 0/40 dead transitions. [2025-02-06 18:52:00,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 184 flow [2025-02-06 18:52:00,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:52:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:52:00,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 114 transitions. [2025-02-06 18:52:00,983 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.475 [2025-02-06 18:52:00,983 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 136 flow. Second operand 6 states and 114 transitions. [2025-02-06 18:52:00,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 184 flow [2025-02-06 18:52:00,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:52:00,984 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 152 flow [2025-02-06 18:52:00,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=152, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2025-02-06 18:52:00,985 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 6 predicate places. [2025-02-06 18:52:00,985 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 152 flow [2025-02-06 18:52:00,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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 18:52:00,988 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:00,989 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:52:00,998 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 18:52:01,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:01,193 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:01,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:01,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1560990643, now seen corresponding path program 1 times [2025-02-06 18:52:01,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:01,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58886501] [2025-02-06 18:52:01,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:01,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:01,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:52:01,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:52:01,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:01,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:01,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:52:01,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:01,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58886501] [2025-02-06 18:52:01,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58886501] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:01,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866848486] [2025-02-06 18:52:01,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:01,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:01,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:01,331 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 18:52:01,334 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 [2025-02-06 18:52:01,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:52:01,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:52:01,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:01,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:01,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:52:01,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:01,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:52:01,427 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:52:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:52:01,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866848486] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:52:01,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:52:01,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-06 18:52:01,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085617641] [2025-02-06 18:52:01,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:52:01,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:52:01,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:01,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:52:01,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:52:01,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2025-02-06 18:52:01,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 152 flow. Second operand has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 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 18:52:01,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:01,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2025-02-06 18:52:01,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:01,707 INFO L124 PetriNetUnfolderBase]: 71/193 cut-off events. [2025-02-06 18:52:01,708 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2025-02-06 18:52:01,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 193 events. 71/193 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 780 event pairs, 42 based on Foata normal form. 6/182 useless extension candidates. Maximal degree in co-relation 277. Up to 119 conditions per place. [2025-02-06 18:52:01,711 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 21 selfloop transitions, 25 changer transitions 0/58 dead transitions. [2025-02-06 18:52:01,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 358 flow [2025-02-06 18:52:01,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:52:01,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:52:01,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 192 transitions. [2025-02-06 18:52:01,715 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48 [2025-02-06 18:52:01,715 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 152 flow. Second operand 10 states and 192 transitions. [2025-02-06 18:52:01,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 358 flow [2025-02-06 18:52:01,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 300 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-02-06 18:52:01,720 INFO L231 Difference]: Finished difference. Result has 52 places, 58 transitions, 292 flow [2025-02-06 18:52:01,720 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=292, PETRI_PLACES=52, PETRI_TRANSITIONS=58} [2025-02-06 18:52:01,721 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 13 predicate places. [2025-02-06 18:52:01,721 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 58 transitions, 292 flow [2025-02-06 18:52:01,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 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 18:52:01,722 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:01,722 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:01,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 18:52:01,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:01,923 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:01,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:01,924 INFO L85 PathProgramCache]: Analyzing trace with hash 267716206, now seen corresponding path program 1 times [2025-02-06 18:52:01,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:01,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941404837] [2025-02-06 18:52:01,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:01,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:01,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:52:01,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:52:01,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:01,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:02,026 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 18:52:02,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:02,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941404837] [2025-02-06 18:52:02,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941404837] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:52:02,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:52:02,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:52:02,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396902288] [2025-02-06 18:52:02,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:52:02,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:52:02,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:02,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:52:02,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:52:02,041 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2025-02-06 18:52:02,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 58 transitions, 292 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 18:52:02,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:02,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2025-02-06 18:52:02,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:02,173 INFO L124 PetriNetUnfolderBase]: 165/365 cut-off events. [2025-02-06 18:52:02,174 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2025-02-06 18:52:02,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 768 conditions, 365 events. 165/365 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1581 event pairs, 67 based on Foata normal form. 10/355 useless extension candidates. Maximal degree in co-relation 701. Up to 219 conditions per place. [2025-02-06 18:52:02,176 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 61 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2025-02-06 18:52:02,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 76 transitions, 462 flow [2025-02-06 18:52:02,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:52:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:52:02,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2025-02-06 18:52:02,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.64375 [2025-02-06 18:52:02,178 INFO L175 Difference]: Start difference. First operand has 52 places, 58 transitions, 292 flow. Second operand 4 states and 103 transitions. [2025-02-06 18:52:02,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 76 transitions, 462 flow [2025-02-06 18:52:02,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 76 transitions, 438 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-06 18:52:02,182 INFO L231 Difference]: Finished difference. Result has 55 places, 61 transitions, 297 flow [2025-02-06 18:52:02,183 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=297, PETRI_PLACES=55, PETRI_TRANSITIONS=61} [2025-02-06 18:52:02,183 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 16 predicate places. [2025-02-06 18:52:02,184 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 61 transitions, 297 flow [2025-02-06 18:52:02,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 18:52:02,184 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:02,184 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:02,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:52:02,186 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:02,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:02,186 INFO L85 PathProgramCache]: Analyzing trace with hash 130500487, now seen corresponding path program 1 times [2025-02-06 18:52:02,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:02,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398784342] [2025-02-06 18:52:02,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:02,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:02,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:52:02,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:52:02,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:02,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:02,254 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 18:52:02,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:02,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398784342] [2025-02-06 18:52:02,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398784342] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:52:02,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:52:02,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:52:02,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875580696] [2025-02-06 18:52:02,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:52:02,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:52:02,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:02,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:52:02,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:52:02,266 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2025-02-06 18:52:02,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 61 transitions, 297 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 18:52:02,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:02,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2025-02-06 18:52:02,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:02,385 INFO L124 PetriNetUnfolderBase]: 248/482 cut-off events. [2025-02-06 18:52:02,386 INFO L125 PetriNetUnfolderBase]: For 209/264 co-relation queries the response was YES. [2025-02-06 18:52:02,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1147 conditions, 482 events. 248/482 cut-off events. For 209/264 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1994 event pairs, 117 based on Foata normal form. 32/493 useless extension candidates. Maximal degree in co-relation 1080. Up to 310 conditions per place. [2025-02-06 18:52:02,389 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 65 selfloop transitions, 4 changer transitions 0/81 dead transitions. [2025-02-06 18:52:02,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 81 transitions, 503 flow [2025-02-06 18:52:02,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:52:02,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:52:02,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2025-02-06 18:52:02,391 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.63125 [2025-02-06 18:52:02,391 INFO L175 Difference]: Start difference. First operand has 55 places, 61 transitions, 297 flow. Second operand 4 states and 101 transitions. [2025-02-06 18:52:02,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 81 transitions, 503 flow [2025-02-06 18:52:02,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 81 transitions, 494 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:52:02,395 INFO L231 Difference]: Finished difference. Result has 59 places, 64 transitions, 323 flow [2025-02-06 18:52:02,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=323, PETRI_PLACES=59, PETRI_TRANSITIONS=64} [2025-02-06 18:52:02,400 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 20 predicate places. [2025-02-06 18:52:02,400 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 64 transitions, 323 flow [2025-02-06 18:52:02,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 18:52:02,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:02,400 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:02,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:52:02,400 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:02,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:02,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1241816286, now seen corresponding path program 1 times [2025-02-06 18:52:02,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:02,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781069626] [2025-02-06 18:52:02,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:02,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:02,412 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:52:02,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:52:02,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:02,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:02,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:02,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:02,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781069626] [2025-02-06 18:52:02,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781069626] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:52:02,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:52:02,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:52:02,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104085045] [2025-02-06 18:52:02,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:52:02,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:52:02,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:02,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:52:02,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:52:02,560 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 40 [2025-02-06 18:52:02,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 64 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 18:52:02,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:02,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 40 [2025-02-06 18:52:02,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:02,676 INFO L124 PetriNetUnfolderBase]: 190/468 cut-off events. [2025-02-06 18:52:02,676 INFO L125 PetriNetUnfolderBase]: For 245/276 co-relation queries the response was YES. [2025-02-06 18:52:02,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 468 events. 190/468 cut-off events. For 245/276 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2136 event pairs, 122 based on Foata normal form. 25/484 useless extension candidates. Maximal degree in co-relation 1110. Up to 273 conditions per place. [2025-02-06 18:52:02,680 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 54 selfloop transitions, 4 changer transitions 14/88 dead transitions. [2025-02-06 18:52:02,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 88 transitions, 592 flow [2025-02-06 18:52:02,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:52:02,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:52:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2025-02-06 18:52:02,681 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65 [2025-02-06 18:52:02,681 INFO L175 Difference]: Start difference. First operand has 59 places, 64 transitions, 323 flow. Second operand 5 states and 130 transitions. [2025-02-06 18:52:02,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 88 transitions, 592 flow [2025-02-06 18:52:02,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 88 transitions, 587 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:52:02,685 INFO L231 Difference]: Finished difference. Result has 64 places, 65 transitions, 346 flow [2025-02-06 18:52:02,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=346, PETRI_PLACES=64, PETRI_TRANSITIONS=65} [2025-02-06 18:52:02,686 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 25 predicate places. [2025-02-06 18:52:02,686 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 65 transitions, 346 flow [2025-02-06 18:52:02,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 18:52:02,686 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:02,687 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-06 18:52:02,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:52:02,687 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:02,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:02,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1066357022, now seen corresponding path program 2 times [2025-02-06 18:52:02,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:02,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973648656] [2025-02-06 18:52:02,688 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:52:02,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:02,696 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:52:02,700 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:52:02,700 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:52:02,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:02,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:52:02,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:02,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973648656] [2025-02-06 18:52:02,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973648656] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:02,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351486932] [2025-02-06 18:52:02,734 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:52:02,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:02,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:02,736 INFO L229 MonitoredProcess]: Starting monitored process 4 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 18:52:02,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 18:52:02,787 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:52:02,796 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:52:02,796 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:52:02,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:02,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:52:02,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:02,822 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:52:02,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:52:02,854 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:52:02,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351486932] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:52:02,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:52:02,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-02-06 18:52:02,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829596549] [2025-02-06 18:52:02,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:52:02,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:52:02,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:02,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:52:02,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:52:02,865 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2025-02-06 18:52:02,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 65 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 18:52:02,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:02,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2025-02-06 18:52:02,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:02,966 INFO L124 PetriNetUnfolderBase]: 189/466 cut-off events. [2025-02-06 18:52:02,966 INFO L125 PetriNetUnfolderBase]: For 285/316 co-relation queries the response was YES. [2025-02-06 18:52:02,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1231 conditions, 466 events. 189/466 cut-off events. For 285/316 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2174 event pairs, 122 based on Foata normal form. 12/467 useless extension candidates. Maximal degree in co-relation 1135. Up to 330 conditions per place. [2025-02-06 18:52:02,969 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 34 selfloop transitions, 16 changer transitions 0/64 dead transitions. [2025-02-06 18:52:02,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 436 flow [2025-02-06 18:52:02,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:52:02,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:52:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2025-02-06 18:52:02,970 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4875 [2025-02-06 18:52:02,970 INFO L175 Difference]: Start difference. First operand has 64 places, 65 transitions, 346 flow. Second operand 4 states and 78 transitions. [2025-02-06 18:52:02,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 436 flow [2025-02-06 18:52:02,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 432 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-06 18:52:02,973 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 364 flow [2025-02-06 18:52:02,973 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=364, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2025-02-06 18:52:02,974 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 26 predicate places. [2025-02-06 18:52:02,974 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 364 flow [2025-02-06 18:52:02,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 18:52:02,974 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:02,974 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2025-02-06 18:52:02,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 18:52:03,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:03,175 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:03,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:03,176 INFO L85 PathProgramCache]: Analyzing trace with hash -368770107, now seen corresponding path program 1 times [2025-02-06 18:52:03,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:03,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908335959] [2025-02-06 18:52:03,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:03,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:03,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:52:03,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:52:03,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:03,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:52:03,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:03,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908335959] [2025-02-06 18:52:03,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908335959] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:03,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115189250] [2025-02-06 18:52:03,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:03,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:03,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:03,379 INFO L229 MonitoredProcess]: Starting monitored process 5 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 18:52:03,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 18:52:03,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:52:03,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:52:03,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:03,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:03,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 18:52:03,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:52:03,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:52:03,677 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:52:03,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115189250] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:52:03,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:52:03,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-02-06 18:52:03,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227689630] [2025-02-06 18:52:03,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:52:03,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 18:52:03,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:03,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 18:52:03,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-02-06 18:52:03,733 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2025-02-06 18:52:03,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 364 flow. Second operand has 24 states, 24 states have (on average 15.083333333333334) internal successors, (362), 24 states have internal predecessors, (362), 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 18:52:03,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:03,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2025-02-06 18:52:03,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:04,098 INFO L124 PetriNetUnfolderBase]: 207/538 cut-off events. [2025-02-06 18:52:04,098 INFO L125 PetriNetUnfolderBase]: For 544/575 co-relation queries the response was YES. [2025-02-06 18:52:04,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1503 conditions, 538 events. 207/538 cut-off events. For 544/575 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2489 event pairs, 122 based on Foata normal form. 23/532 useless extension candidates. Maximal degree in co-relation 1144. Up to 326 conditions per place. [2025-02-06 18:52:04,102 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 24 selfloop transitions, 62 changer transitions 0/100 dead transitions. [2025-02-06 18:52:04,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 100 transitions, 806 flow [2025-02-06 18:52:04,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 18:52:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-06 18:52:04,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 395 transitions. [2025-02-06 18:52:04,105 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44886363636363635 [2025-02-06 18:52:04,105 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 364 flow. Second operand 22 states and 395 transitions. [2025-02-06 18:52:04,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 100 transitions, 806 flow [2025-02-06 18:52:04,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 100 transitions, 723 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 18:52:04,113 INFO L231 Difference]: Finished difference. Result has 88 places, 100 transitions, 721 flow [2025-02-06 18:52:04,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=721, PETRI_PLACES=88, PETRI_TRANSITIONS=100} [2025-02-06 18:52:04,114 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 49 predicate places. [2025-02-06 18:52:04,114 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 100 transitions, 721 flow [2025-02-06 18:52:04,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.083333333333334) internal successors, (362), 24 states have internal predecessors, (362), 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 18:52:04,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:04,115 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:04,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 18:52:04,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-06 18:52:04,319 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:04,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:04,319 INFO L85 PathProgramCache]: Analyzing trace with hash 960287603, now seen corresponding path program 1 times [2025-02-06 18:52:04,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:04,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178347557] [2025-02-06 18:52:04,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:04,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:04,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:52:04,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:52:04,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:04,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:52:04,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:04,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178347557] [2025-02-06 18:52:04,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178347557] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:04,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287171568] [2025-02-06 18:52:04,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:04,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:04,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:04,428 INFO L229 MonitoredProcess]: Starting monitored process 6 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 18:52:04,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 18:52:04,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:52:04,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:52:04,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:04,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:04,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:52:04,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:04,555 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:52:04,555 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:52:04,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287171568] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:52:04,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:52:04,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-06 18:52:04,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581648736] [2025-02-06 18:52:04,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:52:04,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:52:04,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:04,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:52:04,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:52:04,572 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2025-02-06 18:52:04,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 100 transitions, 721 flow. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 18:52:04,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:04,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2025-02-06 18:52:04,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:04,794 INFO L124 PetriNetUnfolderBase]: 273/645 cut-off events. [2025-02-06 18:52:04,794 INFO L125 PetriNetUnfolderBase]: For 615/637 co-relation queries the response was YES. [2025-02-06 18:52:04,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 645 events. 273/645 cut-off events. For 615/637 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3035 event pairs, 39 based on Foata normal form. 22/648 useless extension candidates. Maximal degree in co-relation 1745. Up to 218 conditions per place. [2025-02-06 18:52:04,801 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 118 selfloop transitions, 7 changer transitions 0/136 dead transitions. [2025-02-06 18:52:04,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 136 transitions, 1099 flow [2025-02-06 18:52:04,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:52:04,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:52:04,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions. [2025-02-06 18:52:04,803 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2025-02-06 18:52:04,803 INFO L175 Difference]: Start difference. First operand has 88 places, 100 transitions, 721 flow. Second operand 6 states and 145 transitions. [2025-02-06 18:52:04,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 136 transitions, 1099 flow [2025-02-06 18:52:04,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 136 transitions, 941 flow, removed 47 selfloop flow, removed 9 redundant places. [2025-02-06 18:52:04,813 INFO L231 Difference]: Finished difference. Result has 83 places, 99 transitions, 573 flow [2025-02-06 18:52:04,813 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=573, PETRI_PLACES=83, PETRI_TRANSITIONS=99} [2025-02-06 18:52:04,813 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 44 predicate places. [2025-02-06 18:52:04,813 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 99 transitions, 573 flow [2025-02-06 18:52:04,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 18:52:04,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:04,814 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:04,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 18:52:05,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:05,014 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:05,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:05,015 INFO L85 PathProgramCache]: Analyzing trace with hash -295854888, now seen corresponding path program 1 times [2025-02-06 18:52:05,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:05,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382981350] [2025-02-06 18:52:05,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:05,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:05,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 18:52:05,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 18:52:05,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:05,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:52:05,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:05,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382981350] [2025-02-06 18:52:05,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382981350] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:05,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807762141] [2025-02-06 18:52:05,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:05,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:05,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:05,112 INFO L229 MonitoredProcess]: Starting monitored process 7 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 18:52:05,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 18:52:05,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 18:52:05,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 18:52:05,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:05,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:05,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:52:05,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:52:05,217 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:52:05,257 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:52:05,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807762141] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:52:05,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:52:05,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 18:52:05,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31785949] [2025-02-06 18:52:05,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:52:05,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:52:05,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:05,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:52:05,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:52:05,276 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2025-02-06 18:52:05,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 99 transitions, 573 flow. Second operand has 12 states, 12 states have (on average 17.0) internal successors, (204), 12 states have internal predecessors, (204), 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 18:52:05,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:05,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2025-02-06 18:52:05,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:05,578 INFO L124 PetriNetUnfolderBase]: 513/1105 cut-off events. [2025-02-06 18:52:05,578 INFO L125 PetriNetUnfolderBase]: For 1000/1068 co-relation queries the response was YES. [2025-02-06 18:52:05,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3146 conditions, 1105 events. 513/1105 cut-off events. For 1000/1068 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5335 event pairs, 113 based on Foata normal form. 66/1161 useless extension candidates. Maximal degree in co-relation 3035. Up to 418 conditions per place. [2025-02-06 18:52:05,587 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 160 selfloop transitions, 13 changer transitions 0/184 dead transitions. [2025-02-06 18:52:05,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 184 transitions, 1245 flow [2025-02-06 18:52:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:52:05,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:52:05,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 247 transitions. [2025-02-06 18:52:05,589 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6175 [2025-02-06 18:52:05,589 INFO L175 Difference]: Start difference. First operand has 83 places, 99 transitions, 573 flow. Second operand 10 states and 247 transitions. [2025-02-06 18:52:05,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 184 transitions, 1245 flow [2025-02-06 18:52:05,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 184 transitions, 1215 flow, removed 8 selfloop flow, removed 4 redundant places. [2025-02-06 18:52:05,597 INFO L231 Difference]: Finished difference. Result has 91 places, 108 transitions, 641 flow [2025-02-06 18:52:05,597 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=641, PETRI_PLACES=91, PETRI_TRANSITIONS=108} [2025-02-06 18:52:05,598 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 52 predicate places. [2025-02-06 18:52:05,598 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 108 transitions, 641 flow [2025-02-06 18:52:05,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.0) internal successors, (204), 12 states have internal predecessors, (204), 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 18:52:05,598 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:05,598 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:05,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 18:52:05,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 18:52:05,803 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:05,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:05,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1606641789, now seen corresponding path program 1 times [2025-02-06 18:52:05,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:05,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841575059] [2025-02-06 18:52:05,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:05,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:05,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 18:52:05,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 18:52:05,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:05,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:52:05,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:05,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841575059] [2025-02-06 18:52:05,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841575059] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:52:05,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:52:05,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:52:05,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990711417] [2025-02-06 18:52:05,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:52:05,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:52:05,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:05,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:52:05,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:52:05,939 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 40 [2025-02-06 18:52:05,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 108 transitions, 641 flow. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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 18:52:05,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:05,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 40 [2025-02-06 18:52:05,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:06,153 INFO L124 PetriNetUnfolderBase]: 412/1078 cut-off events. [2025-02-06 18:52:06,153 INFO L125 PetriNetUnfolderBase]: For 1169/1177 co-relation queries the response was YES. [2025-02-06 18:52:06,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3010 conditions, 1078 events. 412/1078 cut-off events. For 1169/1177 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5616 event pairs, 114 based on Foata normal form. 15/1079 useless extension candidates. Maximal degree in co-relation 2897. Up to 479 conditions per place. [2025-02-06 18:52:06,161 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 84 selfloop transitions, 16 changer transitions 10/127 dead transitions. [2025-02-06 18:52:06,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 127 transitions, 930 flow [2025-02-06 18:52:06,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:52:06,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:52:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 134 transitions. [2025-02-06 18:52:06,163 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.67 [2025-02-06 18:52:06,163 INFO L175 Difference]: Start difference. First operand has 91 places, 108 transitions, 641 flow. Second operand 5 states and 134 transitions. [2025-02-06 18:52:06,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 127 transitions, 930 flow [2025-02-06 18:52:06,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 127 transitions, 915 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-02-06 18:52:06,172 INFO L231 Difference]: Finished difference. Result has 95 places, 109 transitions, 688 flow [2025-02-06 18:52:06,172 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=688, PETRI_PLACES=95, PETRI_TRANSITIONS=109} [2025-02-06 18:52:06,173 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 56 predicate places. [2025-02-06 18:52:06,173 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 109 transitions, 688 flow [2025-02-06 18:52:06,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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 18:52:06,173 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:06,173 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:06,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:52:06,174 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:06,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:06,174 INFO L85 PathProgramCache]: Analyzing trace with hash 833456168, now seen corresponding path program 1 times [2025-02-06 18:52:06,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:06,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913624470] [2025-02-06 18:52:06,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:06,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:06,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 18:52:06,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 18:52:06,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:06,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:06,274 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:06,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:06,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913624470] [2025-02-06 18:52:06,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913624470] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:06,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559099192] [2025-02-06 18:52:06,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:06,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:06,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:06,277 INFO L229 MonitoredProcess]: Starting monitored process 8 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 18:52:06,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 18:52:06,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 18:52:06,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 18:52:06,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:06,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:06,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:52:06,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:06,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:06,397 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:52:06,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559099192] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:52:06,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:52:06,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-06 18:52:06,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467835493] [2025-02-06 18:52:06,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:52:06,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:52:06,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:06,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:52:06,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:52:06,409 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2025-02-06 18:52:06,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 109 transitions, 688 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 18:52:06,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:06,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2025-02-06 18:52:06,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:06,630 INFO L124 PetriNetUnfolderBase]: 525/1103 cut-off events. [2025-02-06 18:52:06,630 INFO L125 PetriNetUnfolderBase]: For 1765/1781 co-relation queries the response was YES. [2025-02-06 18:52:06,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3513 conditions, 1103 events. 525/1103 cut-off events. For 1765/1781 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5286 event pairs, 93 based on Foata normal form. 25/1086 useless extension candidates. Maximal degree in co-relation 3395. Up to 347 conditions per place. [2025-02-06 18:52:06,639 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 146 selfloop transitions, 7 changer transitions 0/166 dead transitions. [2025-02-06 18:52:06,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 166 transitions, 1309 flow [2025-02-06 18:52:06,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:52:06,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:52:06,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 141 transitions. [2025-02-06 18:52:06,640 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5875 [2025-02-06 18:52:06,640 INFO L175 Difference]: Start difference. First operand has 95 places, 109 transitions, 688 flow. Second operand 6 states and 141 transitions. [2025-02-06 18:52:06,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 166 transitions, 1309 flow [2025-02-06 18:52:06,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 166 transitions, 1277 flow, removed 14 selfloop flow, removed 2 redundant places. [2025-02-06 18:52:06,649 INFO L231 Difference]: Finished difference. Result has 96 places, 108 transitions, 687 flow [2025-02-06 18:52:06,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=687, PETRI_PLACES=96, PETRI_TRANSITIONS=108} [2025-02-06 18:52:06,650 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 57 predicate places. [2025-02-06 18:52:06,650 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 108 transitions, 687 flow [2025-02-06 18:52:06,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 18:52:06,650 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:06,650 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:06,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 18:52:06,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:06,851 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:06,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:06,851 INFO L85 PathProgramCache]: Analyzing trace with hash 67337932, now seen corresponding path program 1 times [2025-02-06 18:52:06,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:06,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177778690] [2025-02-06 18:52:06,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:06,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:06,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 18:52:06,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 18:52:06,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:06,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:06,952 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:06,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:06,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177778690] [2025-02-06 18:52:06,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177778690] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:06,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500628115] [2025-02-06 18:52:06,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:06,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:06,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:06,955 INFO L229 MonitoredProcess]: Starting monitored process 9 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 18:52:06,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 18:52:07,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 18:52:07,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 18:52:07,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:07,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:07,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:52:07,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:07,074 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:07,074 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:52:07,117 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:07,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500628115] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:52:07,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:52:07,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 18:52:07,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429649582] [2025-02-06 18:52:07,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:52:07,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:52:07,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:07,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:52:07,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:52:07,140 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2025-02-06 18:52:07,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 108 transitions, 687 flow. Second operand has 12 states, 12 states have (on average 17.333333333333332) internal successors, (208), 12 states have internal predecessors, (208), 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 18:52:07,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:07,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2025-02-06 18:52:07,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:07,569 INFO L124 PetriNetUnfolderBase]: 1005/1963 cut-off events. [2025-02-06 18:52:07,569 INFO L125 PetriNetUnfolderBase]: For 2554/2606 co-relation queries the response was YES. [2025-02-06 18:52:07,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5970 conditions, 1963 events. 1005/1963 cut-off events. For 2554/2606 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 9950 event pairs, 187 based on Foata normal form. 75/2021 useless extension candidates. Maximal degree in co-relation 5853. Up to 727 conditions per place. [2025-02-06 18:52:07,589 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 208 selfloop transitions, 13 changer transitions 0/234 dead transitions. [2025-02-06 18:52:07,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 234 transitions, 1781 flow [2025-02-06 18:52:07,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:52:07,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:52:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 239 transitions. [2025-02-06 18:52:07,592 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5975 [2025-02-06 18:52:07,592 INFO L175 Difference]: Start difference. First operand has 96 places, 108 transitions, 687 flow. Second operand 10 states and 239 transitions. [2025-02-06 18:52:07,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 234 transitions, 1781 flow [2025-02-06 18:52:07,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 234 transitions, 1751 flow, removed 8 selfloop flow, removed 4 redundant places. [2025-02-06 18:52:07,604 INFO L231 Difference]: Finished difference. Result has 104 places, 117 transitions, 755 flow [2025-02-06 18:52:07,604 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=755, PETRI_PLACES=104, PETRI_TRANSITIONS=117} [2025-02-06 18:52:07,605 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 65 predicate places. [2025-02-06 18:52:07,605 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 117 transitions, 755 flow [2025-02-06 18:52:07,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.333333333333332) internal successors, (208), 12 states have internal predecessors, (208), 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 18:52:07,605 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:07,605 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1] [2025-02-06 18:52:07,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 18:52:07,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:07,806 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:07,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:07,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1105014757, now seen corresponding path program 2 times [2025-02-06 18:52:07,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:07,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8421193] [2025-02-06 18:52:07,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:52:07,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:07,820 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-02-06 18:52:07,825 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 35 statements. [2025-02-06 18:52:07,826 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:52:07,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:52:07,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:07,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8421193] [2025-02-06 18:52:07,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8421193] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:07,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611965853] [2025-02-06 18:52:07,867 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:52:07,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:07,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:07,870 INFO L229 MonitoredProcess]: Starting monitored process 10 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 18:52:07,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 18:52:07,937 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-02-06 18:52:07,948 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 35 statements. [2025-02-06 18:52:07,949 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:52:07,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:07,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:52:07,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:08,005 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:52:08,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:52:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-02-06 18:52:08,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611965853] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:52:08,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:52:08,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-02-06 18:52:08,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978452665] [2025-02-06 18:52:08,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:52:08,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:52:08,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:08,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:52:08,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:52:08,071 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2025-02-06 18:52:08,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 117 transitions, 755 flow. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 18:52:08,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:08,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2025-02-06 18:52:08,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:08,310 INFO L124 PetriNetUnfolderBase]: 735/1626 cut-off events. [2025-02-06 18:52:08,310 INFO L125 PetriNetUnfolderBase]: For 2494/2534 co-relation queries the response was YES. [2025-02-06 18:52:08,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4936 conditions, 1626 events. 735/1626 cut-off events. For 2494/2534 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 8555 event pairs, 437 based on Foata normal form. 2/1601 useless extension candidates. Maximal degree in co-relation 4839. Up to 1091 conditions per place. [2025-02-06 18:52:08,324 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 41 selfloop transitions, 55 changer transitions 2/116 dead transitions. [2025-02-06 18:52:08,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 116 transitions, 929 flow [2025-02-06 18:52:08,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:52:08,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:52:08,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2025-02-06 18:52:08,327 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.455 [2025-02-06 18:52:08,327 INFO L175 Difference]: Start difference. First operand has 104 places, 117 transitions, 755 flow. Second operand 5 states and 91 transitions. [2025-02-06 18:52:08,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 116 transitions, 929 flow [2025-02-06 18:52:08,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 116 transitions, 873 flow, removed 5 selfloop flow, removed 12 redundant places. [2025-02-06 18:52:08,337 INFO L231 Difference]: Finished difference. Result has 95 places, 114 transitions, 767 flow [2025-02-06 18:52:08,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=767, PETRI_PLACES=95, PETRI_TRANSITIONS=114} [2025-02-06 18:52:08,339 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 56 predicate places. [2025-02-06 18:52:08,339 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 114 transitions, 767 flow [2025-02-06 18:52:08,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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 18:52:08,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:08,339 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:08,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 18:52:08,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:08,544 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:08,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:08,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2106327667, now seen corresponding path program 1 times [2025-02-06 18:52:08,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:08,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029737329] [2025-02-06 18:52:08,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:08,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:08,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 18:52:08,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 18:52:08,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:08,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:08,782 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:08,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:08,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029737329] [2025-02-06 18:52:08,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029737329] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:08,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532866870] [2025-02-06 18:52:08,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:52:08,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:08,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:08,784 INFO L229 MonitoredProcess]: Starting monitored process 11 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 18:52:08,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 18:52:08,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 18:52:08,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 18:52:08,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:52:08,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:08,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 18:52:08,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:08,929 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:08,929 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:52:09,082 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:52:09,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532866870] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:52:09,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:52:09,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-02-06 18:52:09,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910914123] [2025-02-06 18:52:09,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:52:09,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 18:52:09,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:09,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 18:52:09,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-02-06 18:52:09,119 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2025-02-06 18:52:09,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 114 transitions, 767 flow. Second operand has 24 states, 24 states have (on average 16.833333333333332) internal successors, (404), 24 states have internal predecessors, (404), 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 18:52:09,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:09,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2025-02-06 18:52:09,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:10,081 INFO L124 PetriNetUnfolderBase]: 1963/3657 cut-off events. [2025-02-06 18:52:10,081 INFO L125 PetriNetUnfolderBase]: For 6639/6761 co-relation queries the response was YES. [2025-02-06 18:52:10,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11018 conditions, 3657 events. 1963/3657 cut-off events. For 6639/6761 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 19253 event pairs, 143 based on Foata normal form. 156/3797 useless extension candidates. Maximal degree in co-relation 10813. Up to 807 conditions per place. [2025-02-06 18:52:10,117 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 400 selfloop transitions, 31 changer transitions 0/443 dead transitions. [2025-02-06 18:52:10,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 443 transitions, 3289 flow [2025-02-06 18:52:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 18:52:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-06 18:52:10,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 538 transitions. [2025-02-06 18:52:10,120 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6113636363636363 [2025-02-06 18:52:10,120 INFO L175 Difference]: Start difference. First operand has 95 places, 114 transitions, 767 flow. Second operand 22 states and 538 transitions. [2025-02-06 18:52:10,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 443 transitions, 3289 flow [2025-02-06 18:52:10,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 443 transitions, 3181 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-02-06 18:52:10,136 INFO L231 Difference]: Finished difference. Result has 115 places, 132 transitions, 867 flow [2025-02-06 18:52:10,136 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=867, PETRI_PLACES=115, PETRI_TRANSITIONS=132} [2025-02-06 18:52:10,137 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 76 predicate places. [2025-02-06 18:52:10,137 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 132 transitions, 867 flow [2025-02-06 18:52:10,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 16.833333333333332) internal successors, (404), 24 states have internal predecessors, (404), 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 18:52:10,137 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:10,137 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:10,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 18:52:10,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-06 18:52:10,338 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:10,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:10,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1847355971, now seen corresponding path program 2 times [2025-02-06 18:52:10,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:10,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956318801] [2025-02-06 18:52:10,338 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:52:10,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:10,350 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 2 equivalence classes. [2025-02-06 18:52:10,359 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 38 statements. [2025-02-06 18:52:10,359 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:52:10,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:10,397 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-06 18:52:10,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:10,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956318801] [2025-02-06 18:52:10,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956318801] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:10,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766751272] [2025-02-06 18:52:10,398 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:52:10,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:10,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:10,400 INFO L229 MonitoredProcess]: Starting monitored process 12 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 18:52:10,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 18:52:10,472 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 2 equivalence classes. [2025-02-06 18:52:10,492 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 38 statements. [2025-02-06 18:52:10,492 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:52:10,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:10,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:52:10,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-06 18:52:10,542 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:52:10,603 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-06 18:52:10,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766751272] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:52:10,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:52:10,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-02-06 18:52:10,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597696000] [2025-02-06 18:52:10,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:52:10,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:52:10,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:10,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:52:10,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:52:10,627 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2025-02-06 18:52:10,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 132 transitions, 867 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 18:52:10,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:10,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2025-02-06 18:52:10,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:11,130 INFO L124 PetriNetUnfolderBase]: 2343/4281 cut-off events. [2025-02-06 18:52:11,131 INFO L125 PetriNetUnfolderBase]: For 10117/10287 co-relation queries the response was YES. [2025-02-06 18:52:11,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14209 conditions, 4281 events. 2343/4281 cut-off events. For 10117/10287 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 22431 event pairs, 477 based on Foata normal form. 49/4195 useless extension candidates. Maximal degree in co-relation 13896. Up to 1575 conditions per place. [2025-02-06 18:52:11,164 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 118 selfloop transitions, 14 changer transitions 36/185 dead transitions. [2025-02-06 18:52:11,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 185 transitions, 1603 flow [2025-02-06 18:52:11,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:52:11,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:52:11,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2025-02-06 18:52:11,167 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.535 [2025-02-06 18:52:11,167 INFO L175 Difference]: Start difference. First operand has 115 places, 132 transitions, 867 flow. Second operand 5 states and 107 transitions. [2025-02-06 18:52:11,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 185 transitions, 1603 flow [2025-02-06 18:52:11,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 185 transitions, 1397 flow, removed 68 selfloop flow, removed 13 redundant places. [2025-02-06 18:52:11,186 INFO L231 Difference]: Finished difference. Result has 106 places, 120 transitions, 751 flow [2025-02-06 18:52:11,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=751, PETRI_PLACES=106, PETRI_TRANSITIONS=120} [2025-02-06 18:52:11,187 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 67 predicate places. [2025-02-06 18:52:11,188 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 120 transitions, 751 flow [2025-02-06 18:52:11,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 18:52:11,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:52:11,188 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:11,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 18:52:11,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-06 18:52:11,388 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-06 18:52:11,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:52:11,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1994464883, now seen corresponding path program 2 times [2025-02-06 18:52:11,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:52:11,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422250013] [2025-02-06 18:52:11,389 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:52:11,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:52:11,403 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 66 statements into 2 equivalence classes. [2025-02-06 18:52:11,423 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 66 of 66 statements. [2025-02-06 18:52:11,423 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:52:11,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:11,530 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2025-02-06 18:52:11,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:52:11,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422250013] [2025-02-06 18:52:11,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422250013] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:52:11,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109795891] [2025-02-06 18:52:11,531 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:52:11,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:52:11,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:52:11,533 INFO L229 MonitoredProcess]: Starting monitored process 13 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 18:52:11,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 18:52:11,612 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 66 statements into 2 equivalence classes. [2025-02-06 18:52:11,648 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 66 of 66 statements. [2025-02-06 18:52:11,648 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:52:11,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:52:11,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:52:11,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:52:11,731 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2025-02-06 18:52:11,732 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:52:11,806 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2025-02-06 18:52:11,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109795891] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:52:11,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:52:11,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-02-06 18:52:11,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157658958] [2025-02-06 18:52:11,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:52:11,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:52:11,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:52:11,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:52:11,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:52:11,825 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2025-02-06 18:52:11,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 120 transitions, 751 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 18:52:11,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:52:11,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2025-02-06 18:52:11,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:52:12,191 INFO L124 PetriNetUnfolderBase]: 2094/3983 cut-off events. [2025-02-06 18:52:12,191 INFO L125 PetriNetUnfolderBase]: For 9730/9878 co-relation queries the response was YES. [2025-02-06 18:52:12,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12470 conditions, 3983 events. 2094/3983 cut-off events. For 9730/9878 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 21348 event pairs, 458 based on Foata normal form. 26/3903 useless extension candidates. Maximal degree in co-relation 12159. Up to 1664 conditions per place. [2025-02-06 18:52:12,210 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 0 selfloop transitions, 0 changer transitions 151/151 dead transitions. [2025-02-06 18:52:12,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 151 transitions, 1195 flow [2025-02-06 18:52:12,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:52:12,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:52:12,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2025-02-06 18:52:12,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.53 [2025-02-06 18:52:12,212 INFO L175 Difference]: Start difference. First operand has 106 places, 120 transitions, 751 flow. Second operand 5 states and 106 transitions. [2025-02-06 18:52:12,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 151 transitions, 1195 flow [2025-02-06 18:52:12,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 151 transitions, 1140 flow, removed 1 selfloop flow, removed 13 redundant places. [2025-02-06 18:52:12,235 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2025-02-06 18:52:12,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2025-02-06 18:52:12,236 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 55 predicate places. [2025-02-06 18:52:12,236 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2025-02-06 18:52:12,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 18:52:12,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2025-02-06 18:52:12,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2025-02-06 18:52:12,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-06 18:52:12,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-06 18:52:12,440 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:52:12,444 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:52:12,444 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:52:12,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:52:12 BasicIcfg [2025-02-06 18:52:12,449 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:52:12,449 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:52:12,450 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:52:12,450 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:52:12,450 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:51:59" (3/4) ... [2025-02-06 18:52:12,452 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:52:12,454 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-06 18:52:12,455 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-06 18:52:12,461 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 88 nodes and edges [2025-02-06 18:52:12,463 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2025-02-06 18:52:12,463 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-02-06 18:52:12,463 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-06 18:52:12,540 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:52:12,541 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:52:12,541 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:52:12,542 INFO L158 Benchmark]: Toolchain (without parser) took 13776.82ms. Allocated memory was 142.6MB in the beginning and 385.9MB in the end (delta: 243.3MB). Free memory was 107.1MB in the beginning and 199.3MB in the end (delta: -92.2MB). Peak memory consumption was 150.4MB. Max. memory is 16.1GB. [2025-02-06 18:52:12,543 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:52:12,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.58ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 94.6MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:52:12,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.28ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 92.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:52:12,545 INFO L158 Benchmark]: Boogie Preprocessor took 57.67ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 91.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:52:12,545 INFO L158 Benchmark]: IcfgBuilder took 683.22ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 36.9MB in the end (delta: 54.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-06 18:52:12,548 INFO L158 Benchmark]: TraceAbstraction took 12646.56ms. Allocated memory was 142.6MB in the beginning and 385.9MB in the end (delta: 243.3MB). Free memory was 36.0MB in the beginning and 206.5MB in the end (delta: -170.6MB). Peak memory consumption was 161.0MB. Max. memory is 16.1GB. [2025-02-06 18:52:12,548 INFO L158 Benchmark]: Witness Printer took 91.35ms. Allocated memory is still 385.9MB. Free memory was 206.5MB in the beginning and 199.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:52:12,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.58ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 94.6MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.28ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 92.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.67ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 91.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 683.22ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 36.9MB in the end (delta: 54.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 12646.56ms. Allocated memory was 142.6MB in the beginning and 385.9MB in the end (delta: 243.3MB). Free memory was 36.0MB in the beginning and 206.5MB in the end (delta: -170.6MB). Peak memory consumption was 161.0MB. Max. memory is 16.1GB. * Witness Printer took 91.35ms. Allocated memory is still 385.9MB. Free memory was 206.5MB in the beginning and 199.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 57 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.5s, OverallIterations: 17, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1066 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 981 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 195 mSDsCounter, 115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2479 IncrementalHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 115 mSolverCounterUnsat, 26 mSDtfsCounter, 2479 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 661 GetRequests, 491 SyntacticMatches, 7 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=867occurred in iteration=15, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 658 NumberOfCodeBlocks, 522 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 876 ConstructedInterpolants, 0 QuantifiedInterpolants, 2382 SizeOfPredicates, 38 NumberOfNonLiveVariables, 1708 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 38 InterpolantComputations, 8 PerfectInterpolantSequences, 1366/1907 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 18:52:12,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE