./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i -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 bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:47:02,019 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:47:02,065 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:47:02,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:47:02,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:47:02,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:47:02,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:47:02,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:47:02,091 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:47:02,091 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:47:02,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:47:02,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:47:02,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:47:02,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:47:02,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:47:02,093 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:47:02,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:47:02,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:47:02,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:47:02,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:47:02,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:47:02,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:47:02,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:47:02,094 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 -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2025-01-10 06:47:02,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:47:02,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:47:02,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:47:02,301 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:47:02,302 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:47:02,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2025-01-10 06:47:03,436 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8b8a068d/c7aebc0cfc4a41788b602d5883e33b6f/FLAG072f938e8 [2025-01-10 06:47:03,817 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:47:03,817 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2025-01-10 06:47:03,834 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8b8a068d/c7aebc0cfc4a41788b602d5883e33b6f/FLAG072f938e8 [2025-01-10 06:47:04,033 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8b8a068d/c7aebc0cfc4a41788b602d5883e33b6f [2025-01-10 06:47:04,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:47:04,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:47:04,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:47:04,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:47:04,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:47:04,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12021fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04, skipping insertion in model container [2025-01-10 06:47:04,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,060 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:47:04,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:47:04,401 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:47:04,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:47:04,480 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:47:04,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04 WrapperNode [2025-01-10 06:47:04,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:47:04,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:47:04,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:47:04,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:47:04,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,517 INFO L138 Inliner]: procedures = 272, calls = 108, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 336 [2025-01-10 06:47:04,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:47:04,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:47:04,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:47:04,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:47:04,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,541 INFO L175 MemorySlicer]: Split 84 memory accesses to 4 slices as follows [2, 5, 75, 2]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 60, 0]. The 7 writes are split as follows [0, 0, 6, 1]. [2025-01-10 06:47:04,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,551 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:47:04,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:47:04,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:47:04,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:47:04,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (1/1) ... [2025-01-10 06:47:04,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:47:04,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:04,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 06:47:04,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 06:47:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 06:47:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 06:47:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 06:47:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 06:47:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 06:47:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 06:47:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-10 06:47:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 06:47:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 06:47:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 06:47:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-10 06:47:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 06:47:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:47:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-10 06:47:04,624 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-10 06:47:04,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:47:04,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 06:47:04,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 06:47:04,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-10 06:47:04,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:47:04,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:47:04,626 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:47:04,728 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:47:04,730 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:47:05,098 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:47:05,099 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:47:05,413 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:47:05,413 INFO L312 CfgBuilder]: Removed 15 assume(true) statements. [2025-01-10 06:47:05,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:47:05 BoogieIcfgContainer [2025-01-10 06:47:05,414 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:47:05,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:47:05,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:47:05,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:47:05,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:47:04" (1/3) ... [2025-01-10 06:47:05,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554b3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:47:05, skipping insertion in model container [2025-01-10 06:47:05,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:04" (2/3) ... [2025-01-10 06:47:05,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554b3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:47:05, skipping insertion in model container [2025-01-10 06:47:05,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:47:05" (3/3) ... [2025-01-10 06:47:05,421 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2025-01-10 06:47:05,432 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:47:05,434 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_71-funloop_racing.i that has 2 procedures, 126 locations, 1 initial locations, 20 loop locations, and 22 error locations. [2025-01-10 06:47:05,434 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:47:05,474 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-01-10 06:47:05,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 163 transitions, 333 flow [2025-01-10 06:47:05,566 INFO L124 PetriNetUnfolderBase]: 60/256 cut-off events. [2025-01-10 06:47:05,568 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:47:05,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 256 events. 60/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1260 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2025-01-10 06:47:05,574 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 163 transitions, 333 flow [2025-01-10 06:47:05,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 162 transitions, 331 flow [2025-01-10 06:47:05,615 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:47:05,622 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;@489f0719, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:47:05,623 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2025-01-10 06:47:05,627 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:47:05,627 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-01-10 06:47:05,627 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:47:05,627 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:05,628 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-01-10 06:47:05,628 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-01-10 06:47:05,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:05,632 INFO L85 PathProgramCache]: Analyzing trace with hash 915006, now seen corresponding path program 1 times [2025-01-10 06:47:05,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:05,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837643167] [2025-01-10 06:47:05,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:05,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:05,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 06:47:05,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 06:47:05,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:05,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:05,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:05,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837643167] [2025-01-10 06:47:05,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837643167] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:05,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:05,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:47:05,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808050042] [2025-01-10 06:47:05,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:05,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:47:05,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:05,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:47:05,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:47:05,949 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 163 [2025-01-10 06:47:05,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 162 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:05,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:05,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 163 [2025-01-10 06:47:05,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:06,431 INFO L124 PetriNetUnfolderBase]: 898/2816 cut-off events. [2025-01-10 06:47:06,432 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:47:06,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4515 conditions, 2816 events. 898/2816 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 22958 event pairs, 740 based on Foata normal form. 506/2930 useless extension candidates. Maximal degree in co-relation 4372. Up to 1692 conditions per place. [2025-01-10 06:47:06,448 INFO L140 encePairwiseOnDemand]: 127/163 looper letters, 66 selfloop transitions, 3 changer transitions 0/134 dead transitions. [2025-01-10 06:47:06,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 134 transitions, 413 flow [2025-01-10 06:47:06,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:47:06,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:47:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 362 transitions. [2025-01-10 06:47:06,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5552147239263804 [2025-01-10 06:47:06,460 INFO L175 Difference]: Start difference. First operand has 129 places, 162 transitions, 331 flow. Second operand 4 states and 362 transitions. [2025-01-10 06:47:06,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 134 transitions, 413 flow [2025-01-10 06:47:06,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 134 transitions, 413 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:47:06,467 INFO L231 Difference]: Finished difference. Result has 134 places, 134 transitions, 295 flow [2025-01-10 06:47:06,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=295, PETRI_PLACES=134, PETRI_TRANSITIONS=134} [2025-01-10 06:47:06,471 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, 5 predicate places. [2025-01-10 06:47:06,471 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 134 transitions, 295 flow [2025-01-10 06:47:06,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:06,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:06,471 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-01-10 06:47:06,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:47:06,472 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-01-10 06:47:06,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:06,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1490080923, now seen corresponding path program 1 times [2025-01-10 06:47:06,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:06,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526861805] [2025-01-10 06:47:06,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:06,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:06,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:47:06,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:47:06,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:06,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:06,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:06,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526861805] [2025-01-10 06:47:06,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526861805] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:06,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413002682] [2025-01-10 06:47:06,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:06,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:06,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:06,645 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) [2025-01-10 06:47:06,657 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 [2025-01-10 06:47:06,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:47:06,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:47:06,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:06,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:06,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:47:06,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:06,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:06,781 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:47:06,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413002682] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:06,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:47:06,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-10 06:47:06,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952387929] [2025-01-10 06:47:06,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:06,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:47:06,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:06,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:47:06,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:47:06,792 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 163 [2025-01-10 06:47:06,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 134 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:06,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:06,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 163 [2025-01-10 06:47:06,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:07,209 INFO L124 PetriNetUnfolderBase]: 898/2815 cut-off events. [2025-01-10 06:47:07,209 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-01-10 06:47:07,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4525 conditions, 2815 events. 898/2815 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 22945 event pairs, 740 based on Foata normal form. 1/2424 useless extension candidates. Maximal degree in co-relation 4507. Up to 1687 conditions per place. [2025-01-10 06:47:07,228 INFO L140 encePairwiseOnDemand]: 158/163 looper letters, 62 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2025-01-10 06:47:07,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 133 transitions, 427 flow [2025-01-10 06:47:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:47:07,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:47:07,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2025-01-10 06:47:07,233 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46932515337423314 [2025-01-10 06:47:07,233 INFO L175 Difference]: Start difference. First operand has 134 places, 134 transitions, 295 flow. Second operand 6 states and 459 transitions. [2025-01-10 06:47:07,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 133 transitions, 427 flow [2025-01-10 06:47:07,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 133 transitions, 425 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:47:07,238 INFO L231 Difference]: Finished difference. Result has 137 places, 133 transitions, 301 flow [2025-01-10 06:47:07,239 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=137, PETRI_TRANSITIONS=133} [2025-01-10 06:47:07,239 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, 8 predicate places. [2025-01-10 06:47:07,239 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 133 transitions, 301 flow [2025-01-10 06:47:07,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:07,240 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:07,240 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-01-10 06:47:07,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 06:47:07,444 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 [2025-01-10 06:47:07,444 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-01-10 06:47:07,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:07,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1052130697, now seen corresponding path program 1 times [2025-01-10 06:47:07,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:07,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626062977] [2025-01-10 06:47:07,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:07,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:07,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:47:07,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:47:07,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:07,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:07,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:47:07,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:07,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626062977] [2025-01-10 06:47:07,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626062977] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:07,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:07,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:47:07,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952625114] [2025-01-10 06:47:07,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:07,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:47:07,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:07,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:47:07,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:47:07,547 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 163 [2025-01-10 06:47:07,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 133 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:07,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:07,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 163 [2025-01-10 06:47:07,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:07,810 INFO L124 PetriNetUnfolderBase]: 898/2814 cut-off events. [2025-01-10 06:47:07,810 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-01-10 06:47:07,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4527 conditions, 2814 events. 898/2814 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 22924 event pairs, 740 based on Foata normal form. 1/2424 useless extension candidates. Maximal degree in co-relation 4503. Up to 1690 conditions per place. [2025-01-10 06:47:07,821 INFO L140 encePairwiseOnDemand]: 160/163 looper letters, 63 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2025-01-10 06:47:07,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 132 transitions, 431 flow [2025-01-10 06:47:07,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:47:07,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:47:07,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2025-01-10 06:47:07,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5337423312883436 [2025-01-10 06:47:07,822 INFO L175 Difference]: Start difference. First operand has 137 places, 133 transitions, 301 flow. Second operand 3 states and 261 transitions. [2025-01-10 06:47:07,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 132 transitions, 431 flow [2025-01-10 06:47:07,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 132 transitions, 409 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-01-10 06:47:07,825 INFO L231 Difference]: Finished difference. Result has 132 places, 132 transitions, 283 flow [2025-01-10 06:47:07,825 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=132, PETRI_TRANSITIONS=132} [2025-01-10 06:47:07,825 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, 3 predicate places. [2025-01-10 06:47:07,825 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 132 transitions, 283 flow [2025-01-10 06:47:07,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:07,826 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:07,826 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:07,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:47:07,826 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-01-10 06:47:07,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:07,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1781336048, now seen corresponding path program 1 times [2025-01-10 06:47:07,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:07,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291505244] [2025-01-10 06:47:07,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:07,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:07,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:47:07,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:47:07,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:07,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:07,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:07,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:07,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291505244] [2025-01-10 06:47:07,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291505244] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:07,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839326855] [2025-01-10 06:47:07,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:07,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:07,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:07,892 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) [2025-01-10 06:47:07,894 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 [2025-01-10 06:47:07,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:47:07,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:47:07,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:07,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:07,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:47:07,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:07,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:07,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:47:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:08,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839326855] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:47:08,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:47:08,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-01-10 06:47:08,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607440822] [2025-01-10 06:47:08,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:47:08,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 06:47:08,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:08,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 06:47:08,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-10 06:47:08,031 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 163 [2025-01-10 06:47:08,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 132 transitions, 283 flow. Second operand has 10 states, 10 states have (on average 66.3) internal successors, (663), 10 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:08,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:08,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 163 [2025-01-10 06:47:08,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:08,365 INFO L124 PetriNetUnfolderBase]: 898/2818 cut-off events. [2025-01-10 06:47:08,366 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-01-10 06:47:08,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4530 conditions, 2818 events. 898/2818 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 22915 event pairs, 740 based on Foata normal form. 2/2430 useless extension candidates. Maximal degree in co-relation 4496. Up to 1688 conditions per place. [2025-01-10 06:47:08,378 INFO L140 encePairwiseOnDemand]: 159/163 looper letters, 63 selfloop transitions, 7 changer transitions 0/135 dead transitions. [2025-01-10 06:47:08,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 135 transitions, 438 flow [2025-01-10 06:47:08,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:47:08,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:47:08,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 527 transitions. [2025-01-10 06:47:08,382 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4618755477651183 [2025-01-10 06:47:08,382 INFO L175 Difference]: Start difference. First operand has 132 places, 132 transitions, 283 flow. Second operand 7 states and 527 transitions. [2025-01-10 06:47:08,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 135 transitions, 438 flow [2025-01-10 06:47:08,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 135 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:47:08,386 INFO L231 Difference]: Finished difference. Result has 138 places, 135 transitions, 309 flow [2025-01-10 06:47:08,387 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=309, PETRI_PLACES=138, PETRI_TRANSITIONS=135} [2025-01-10 06:47:08,387 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, 9 predicate places. [2025-01-10 06:47:08,387 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 135 transitions, 309 flow [2025-01-10 06:47:08,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 66.3) internal successors, (663), 10 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:08,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:08,388 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:08,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 06:47:08,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:08,594 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-01-10 06:47:08,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2074093840, now seen corresponding path program 2 times [2025-01-10 06:47:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776223277] [2025-01-10 06:47:08,595 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:47:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:08,607 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-01-10 06:47:08,612 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 15 statements. [2025-01-10 06:47:08,612 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:47:08,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:08,681 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 06:47:08,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:08,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776223277] [2025-01-10 06:47:08,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776223277] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:08,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:08,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:47:08,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614735626] [2025-01-10 06:47:08,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:08,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:47:08,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:08,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:47:08,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:47:08,688 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 163 [2025-01-10 06:47:08,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 135 transitions, 309 flow. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:08,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:08,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 163 [2025-01-10 06:47:08,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:08,973 INFO L124 PetriNetUnfolderBase]: 864/2474 cut-off events. [2025-01-10 06:47:08,973 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-01-10 06:47:08,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4149 conditions, 2474 events. 864/2474 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 19263 event pairs, 0 based on Foata normal form. 21/2224 useless extension candidates. Maximal degree in co-relation 4110. Up to 1585 conditions per place. [2025-01-10 06:47:08,984 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 111 selfloop transitions, 3 changer transitions 0/176 dead transitions. [2025-01-10 06:47:08,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 176 transitions, 619 flow [2025-01-10 06:47:08,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:47:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:47:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 368 transitions. [2025-01-10 06:47:08,987 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5644171779141104 [2025-01-10 06:47:08,988 INFO L175 Difference]: Start difference. First operand has 138 places, 135 transitions, 309 flow. Second operand 4 states and 368 transitions. [2025-01-10 06:47:08,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 176 transitions, 619 flow [2025-01-10 06:47:08,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 176 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:47:08,992 INFO L231 Difference]: Finished difference. Result has 138 places, 133 transitions, 311 flow [2025-01-10 06:47:08,993 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=311, PETRI_PLACES=138, PETRI_TRANSITIONS=133} [2025-01-10 06:47:08,993 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, 9 predicate places. [2025-01-10 06:47:08,994 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 133 transitions, 311 flow [2025-01-10 06:47:08,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:08,994 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:08,994 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:08,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:47:08,995 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-01-10 06:47:08,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:08,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1929067611, now seen corresponding path program 1 times [2025-01-10 06:47:08,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:08,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566479763] [2025-01-10 06:47:08,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:08,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:09,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-10 06:47:09,014 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-10 06:47:09,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:09,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:09,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:09,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566479763] [2025-01-10 06:47:09,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566479763] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:09,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581765262] [2025-01-10 06:47:09,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:09,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:09,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:09,159 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) [2025-01-10 06:47:09,161 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 [2025-01-10 06:47:09,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-10 06:47:09,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-10 06:47:09,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:09,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:09,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 06:47:09,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:09,278 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:47:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:09,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581765262] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:47:09,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:47:09,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-01-10 06:47:09,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449007503] [2025-01-10 06:47:09,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:47:09,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 06:47:09,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:09,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 06:47:09,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-01-10 06:47:09,369 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 163 [2025-01-10 06:47:09,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 133 transitions, 311 flow. Second operand has 18 states, 18 states have (on average 66.22222222222223) internal successors, (1192), 18 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:09,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:09,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 163 [2025-01-10 06:47:09,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:09,777 INFO L124 PetriNetUnfolderBase]: 886/2745 cut-off events. [2025-01-10 06:47:09,777 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2025-01-10 06:47:09,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4489 conditions, 2745 events. 886/2745 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 22001 event pairs, 740 based on Foata normal form. 4/2408 useless extension candidates. Maximal degree in co-relation 4414. Up to 1644 conditions per place. [2025-01-10 06:47:09,787 INFO L140 encePairwiseOnDemand]: 159/163 looper letters, 63 selfloop transitions, 15 changer transitions 0/141 dead transitions. [2025-01-10 06:47:09,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 141 transitions, 515 flow [2025-01-10 06:47:09,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 06:47:09,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-10 06:47:09,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1057 transitions. [2025-01-10 06:47:09,790 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43231083844580775 [2025-01-10 06:47:09,790 INFO L175 Difference]: Start difference. First operand has 138 places, 133 transitions, 311 flow. Second operand 15 states and 1057 transitions. [2025-01-10 06:47:09,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 141 transitions, 515 flow [2025-01-10 06:47:09,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 141 transitions, 509 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:47:09,795 INFO L231 Difference]: Finished difference. Result has 153 places, 141 transitions, 402 flow [2025-01-10 06:47:09,796 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=402, PETRI_PLACES=153, PETRI_TRANSITIONS=141} [2025-01-10 06:47:09,796 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, 24 predicate places. [2025-01-10 06:47:09,797 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 141 transitions, 402 flow [2025-01-10 06:47:09,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 66.22222222222223) internal successors, (1192), 18 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:09,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:09,798 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:09,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-10 06:47:09,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:10,000 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-01-10 06:47:10,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:10,002 INFO L85 PathProgramCache]: Analyzing trace with hash 844244453, now seen corresponding path program 2 times [2025-01-10 06:47:10,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:10,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118610185] [2025-01-10 06:47:10,002 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:47:10,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:10,016 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-01-10 06:47:10,041 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 06:47:10,041 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:47:10,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:10,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:10,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118610185] [2025-01-10 06:47:10,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118610185] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:10,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410335388] [2025-01-10 06:47:10,282 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:47:10,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:10,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:10,285 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) [2025-01-10 06:47:10,287 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 [2025-01-10 06:47:10,338 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-01-10 06:47:10,365 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 06:47:10,365 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:47:10,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:10,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 06:47:10,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:10,425 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:10,426 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:47:10,578 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:10,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410335388] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:47:10,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:47:10,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-01-10 06:47:10,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88706890] [2025-01-10 06:47:10,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:47:10,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-10 06:47:10,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:10,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-10 06:47:10,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-01-10 06:47:10,599 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 163 [2025-01-10 06:47:10,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 141 transitions, 402 flow. Second operand has 23 states, 23 states have (on average 66.21739130434783) internal successors, (1523), 23 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:10,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:10,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 163 [2025-01-10 06:47:10,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:11,055 INFO L124 PetriNetUnfolderBase]: 886/2754 cut-off events. [2025-01-10 06:47:11,056 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2025-01-10 06:47:11,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4530 conditions, 2754 events. 886/2754 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 22030 event pairs, 740 based on Foata normal form. 3/2416 useless extension candidates. Maximal degree in co-relation 4395. Up to 1644 conditions per place. [2025-01-10 06:47:11,074 INFO L140 encePairwiseOnDemand]: 159/163 looper letters, 63 selfloop transitions, 21 changer transitions 0/147 dead transitions. [2025-01-10 06:47:11,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 147 transitions, 624 flow [2025-01-10 06:47:11,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-10 06:47:11,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-01-10 06:47:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1452 transitions. [2025-01-10 06:47:11,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42418930762489043 [2025-01-10 06:47:11,080 INFO L175 Difference]: Start difference. First operand has 153 places, 141 transitions, 402 flow. Second operand 21 states and 1452 transitions. [2025-01-10 06:47:11,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 147 transitions, 624 flow [2025-01-10 06:47:11,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 147 transitions, 614 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-01-10 06:47:11,084 INFO L231 Difference]: Finished difference. Result has 172 places, 147 transitions, 503 flow [2025-01-10 06:47:11,084 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=503, PETRI_PLACES=172, PETRI_TRANSITIONS=147} [2025-01-10 06:47:11,085 INFO L279 CegarLoopForPetriNet]: 129 programPoint places, 43 predicate places. [2025-01-10 06:47:11,085 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 147 transitions, 503 flow [2025-01-10 06:47:11,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 66.21739130434783) internal successors, (1523), 23 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:11,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:11,086 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:11,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 06:47:11,286 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,SelfDestructingSolverStorable6 [2025-01-10 06:47:11,287 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-01-10 06:47:11,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:11,287 INFO L85 PathProgramCache]: Analyzing trace with hash -935693240, now seen corresponding path program 3 times [2025-01-10 06:47:11,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:11,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481387084] [2025-01-10 06:47:11,288 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:47:11,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:11,297 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 11 equivalence classes. [2025-01-10 06:47:11,338 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 39 of 39 statements. [2025-01-10 06:47:11,338 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 06:47:11,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:47:11,339 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:47:11,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-10 06:47:11,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-10 06:47:11,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:11,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:47:11,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:47:11,381 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 06:47:11,381 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2025-01-10 06:47:11,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2025-01-10 06:47:11,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2025-01-10 06:47:11,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2025-01-10 06:47:11,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 06:47:11,388 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2025-01-10 06:47:11,390 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-10 06:47:11,390 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-10 06:47:11,429 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-10 06:47:11,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 215 transitions, 446 flow [2025-01-10 06:47:11,479 INFO L124 PetriNetUnfolderBase]: 97/420 cut-off events. [2025-01-10 06:47:11,479 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-01-10 06:47:11,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 420 events. 97/420 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2383 event pairs, 0 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 258. Up to 12 conditions per place. [2025-01-10 06:47:11,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 215 transitions, 446 flow [2025-01-10 06:47:11,484 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 215 transitions, 446 flow [2025-01-10 06:47:11,485 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:47:11,485 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;@489f0719, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:47:11,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2025-01-10 06:47:11,489 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:47:11,489 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-01-10 06:47:11,489 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:47:11,489 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:11,489 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-01-10 06:47:11,489 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-01-10 06:47:11,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:11,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1128501, now seen corresponding path program 1 times [2025-01-10 06:47:11,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:11,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824562401] [2025-01-10 06:47:11,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:11,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 06:47:11,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 06:47:11,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:11,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:11,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:11,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824562401] [2025-01-10 06:47:11,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824562401] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:11,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:11,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:47:11,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567790952] [2025-01-10 06:47:11,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:11,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:47:11,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:11,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:47:11,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:47:11,536 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 215 [2025-01-10 06:47:11,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 215 transitions, 446 flow. Second operand has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:11,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:11,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 215 [2025-01-10 06:47:11,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:16,026 INFO L124 PetriNetUnfolderBase]: 37485/81234 cut-off events. [2025-01-10 06:47:16,027 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2025-01-10 06:47:16,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135695 conditions, 81234 events. 37485/81234 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 2419. Compared 936390 event pairs, 32342 based on Foata normal form. 16345/86531 useless extension candidates. Maximal degree in co-relation 101051. Up to 54347 conditions per place. [2025-01-10 06:47:16,460 INFO L140 encePairwiseOnDemand]: 169/215 looper letters, 90 selfloop transitions, 3 changer transitions 0/177 dead transitions. [2025-01-10 06:47:16,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 177 transitions, 556 flow [2025-01-10 06:47:16,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:47:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:47:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 472 transitions. [2025-01-10 06:47:16,462 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5488372093023256 [2025-01-10 06:47:16,462 INFO L175 Difference]: Start difference. First operand has 170 places, 215 transitions, 446 flow. Second operand 4 states and 472 transitions. [2025-01-10 06:47:16,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 177 transitions, 556 flow [2025-01-10 06:47:16,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 177 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:47:16,465 INFO L231 Difference]: Finished difference. Result has 175 places, 177 transitions, 390 flow [2025-01-10 06:47:16,466 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=390, PETRI_PLACES=175, PETRI_TRANSITIONS=177} [2025-01-10 06:47:16,466 INFO L279 CegarLoopForPetriNet]: 170 programPoint places, 5 predicate places. [2025-01-10 06:47:16,466 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 177 transitions, 390 flow [2025-01-10 06:47:16,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:16,466 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:16,466 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-01-10 06:47:16,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 06:47:16,467 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-01-10 06:47:16,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:16,467 INFO L85 PathProgramCache]: Analyzing trace with hash -739410629, now seen corresponding path program 1 times [2025-01-10 06:47:16,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:16,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830783720] [2025-01-10 06:47:16,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:16,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:16,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:47:16,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:47:16,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:16,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:16,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:16,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:16,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830783720] [2025-01-10 06:47:16,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830783720] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:16,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904334364] [2025-01-10 06:47:16,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:16,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:16,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:16,530 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) [2025-01-10 06:47:16,532 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 [2025-01-10 06:47:16,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:47:16,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:47:16,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:16,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:16,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:47:16,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:16,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:47:16,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904334364] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:16,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:47:16,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-10 06:47:16,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576091436] [2025-01-10 06:47:16,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:16,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:47:16,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:16,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:47:16,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:47:16,636 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 215 [2025-01-10 06:47:16,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 177 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:16,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:16,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 215 [2025-01-10 06:47:16,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:21,329 INFO L124 PetriNetUnfolderBase]: 37485/81233 cut-off events. [2025-01-10 06:47:21,329 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES. [2025-01-10 06:47:21,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135705 conditions, 81233 events. 37485/81233 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 2419. Compared 936429 event pairs, 32342 based on Foata normal form. 1/70186 useless extension candidates. Maximal degree in co-relation 135686. Up to 54342 conditions per place. [2025-01-10 06:47:21,764 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 86 selfloop transitions, 6 changer transitions 0/176 dead transitions. [2025-01-10 06:47:21,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 176 transitions, 570 flow [2025-01-10 06:47:21,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:47:21,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:47:21,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 597 transitions. [2025-01-10 06:47:21,766 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4627906976744186 [2025-01-10 06:47:21,766 INFO L175 Difference]: Start difference. First operand has 175 places, 177 transitions, 390 flow. Second operand 6 states and 597 transitions. [2025-01-10 06:47:21,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 176 transitions, 570 flow [2025-01-10 06:47:21,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 176 transitions, 568 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:47:21,769 INFO L231 Difference]: Finished difference. Result has 178 places, 176 transitions, 396 flow [2025-01-10 06:47:21,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=178, PETRI_TRANSITIONS=176} [2025-01-10 06:47:21,770 INFO L279 CegarLoopForPetriNet]: 170 programPoint places, 8 predicate places. [2025-01-10 06:47:21,770 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 176 transitions, 396 flow [2025-01-10 06:47:21,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:21,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:21,770 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-01-10 06:47:21,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-10 06:47:21,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-01-10 06:47:21,975 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-01-10 06:47:21,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:21,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1446891858, now seen corresponding path program 1 times [2025-01-10 06:47:21,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:21,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817761825] [2025-01-10 06:47:21,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:21,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:21,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:47:21,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:47:21,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:21,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:22,005 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:47:22,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:22,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817761825] [2025-01-10 06:47:22,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817761825] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:22,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:22,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:47:22,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128215391] [2025-01-10 06:47:22,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:22,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:47:22,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:22,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:47:22,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:47:22,013 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 215 [2025-01-10 06:47:22,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 176 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:22,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:22,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 215 [2025-01-10 06:47:22,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:26,480 INFO L124 PetriNetUnfolderBase]: 37485/81232 cut-off events. [2025-01-10 06:47:26,481 INFO L125 PetriNetUnfolderBase]: For 182/182 co-relation queries the response was YES. [2025-01-10 06:47:26,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135707 conditions, 81232 events. 37485/81232 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 2419. Compared 936458 event pairs, 32342 based on Foata normal form. 1/70186 useless extension candidates. Maximal degree in co-relation 135682. Up to 54345 conditions per place. [2025-01-10 06:47:26,958 INFO L140 encePairwiseOnDemand]: 212/215 looper letters, 87 selfloop transitions, 4 changer transitions 0/175 dead transitions. [2025-01-10 06:47:26,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 175 transitions, 574 flow [2025-01-10 06:47:26,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:47:26,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:47:26,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2025-01-10 06:47:26,960 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5302325581395348 [2025-01-10 06:47:26,960 INFO L175 Difference]: Start difference. First operand has 178 places, 176 transitions, 396 flow. Second operand 3 states and 342 transitions. [2025-01-10 06:47:26,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 175 transitions, 574 flow [2025-01-10 06:47:26,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 175 transitions, 552 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-01-10 06:47:26,963 INFO L231 Difference]: Finished difference. Result has 173 places, 175 transitions, 378 flow [2025-01-10 06:47:26,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=173, PETRI_TRANSITIONS=175} [2025-01-10 06:47:26,964 INFO L279 CegarLoopForPetriNet]: 170 programPoint places, 3 predicate places. [2025-01-10 06:47:26,964 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 175 transitions, 378 flow [2025-01-10 06:47:26,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:26,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:26,964 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:26,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-10 06:47:26,965 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-01-10 06:47:26,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:26,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1105332505, now seen corresponding path program 1 times [2025-01-10 06:47:26,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:26,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113800414] [2025-01-10 06:47:26,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:26,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:26,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:47:26,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:47:26,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:26,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:27,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:27,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:27,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113800414] [2025-01-10 06:47:27,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113800414] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:27,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834214530] [2025-01-10 06:47:27,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:27,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:27,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:27,021 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) [2025-01-10 06:47:27,023 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 [2025-01-10 06:47:27,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:47:27,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:47:27,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:27,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:27,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:47:27,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:27,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:27,114 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:47:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:27,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834214530] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:47:27,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:47:27,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-01-10 06:47:27,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309654542] [2025-01-10 06:47:27,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:47:27,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 06:47:27,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:27,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 06:47:27,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-10 06:47:27,145 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 215 [2025-01-10 06:47:27,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 175 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 85.3) internal successors, (853), 10 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:27,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:27,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 215 [2025-01-10 06:47:27,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:31,760 INFO L124 PetriNetUnfolderBase]: 37485/81236 cut-off events. [2025-01-10 06:47:31,760 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2025-01-10 06:47:31,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135710 conditions, 81236 events. 37485/81236 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 2419. Compared 936410 event pairs, 32342 based on Foata normal form. 2/70192 useless extension candidates. Maximal degree in co-relation 135675. Up to 54343 conditions per place. [2025-01-10 06:47:32,132 INFO L140 encePairwiseOnDemand]: 211/215 looper letters, 87 selfloop transitions, 7 changer transitions 0/178 dead transitions. [2025-01-10 06:47:32,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 178 transitions, 581 flow [2025-01-10 06:47:32,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:47:32,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:47:32,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 684 transitions. [2025-01-10 06:47:32,134 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45448504983388704 [2025-01-10 06:47:32,134 INFO L175 Difference]: Start difference. First operand has 173 places, 175 transitions, 378 flow. Second operand 7 states and 684 transitions. [2025-01-10 06:47:32,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 178 transitions, 581 flow [2025-01-10 06:47:32,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 178 transitions, 567 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:47:32,137 INFO L231 Difference]: Finished difference. Result has 179 places, 178 transitions, 404 flow [2025-01-10 06:47:32,138 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=404, PETRI_PLACES=179, PETRI_TRANSITIONS=178} [2025-01-10 06:47:32,138 INFO L279 CegarLoopForPetriNet]: 170 programPoint places, 9 predicate places. [2025-01-10 06:47:32,138 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 178 transitions, 404 flow [2025-01-10 06:47:32,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.3) internal successors, (853), 10 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:32,139 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:32,139 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:32,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 06:47:32,343 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,SelfDestructingSolverStorable11 [2025-01-10 06:47:32,343 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-01-10 06:47:32,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:32,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1425404761, now seen corresponding path program 2 times [2025-01-10 06:47:32,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:32,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610641900] [2025-01-10 06:47:32,343 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:47:32,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:32,357 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-01-10 06:47:32,363 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 15 statements. [2025-01-10 06:47:32,363 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:47:32,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:32,394 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 06:47:32,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:32,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610641900] [2025-01-10 06:47:32,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610641900] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:32,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:32,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:47:32,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579062632] [2025-01-10 06:47:32,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:32,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:47:32,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:32,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:47:32,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:47:32,405 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 215 [2025-01-10 06:47:32,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 178 transitions, 404 flow. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:32,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:32,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 215 [2025-01-10 06:47:32,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:37,034 INFO L124 PetriNetUnfolderBase]: 39236/82033 cut-off events. [2025-01-10 06:47:37,034 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2025-01-10 06:47:37,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139368 conditions, 82033 events. 39236/82033 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 2310. Compared 919021 event pairs, 16880 based on Foata normal form. 21/71327 useless extension candidates. Maximal degree in co-relation 139328. Up to 57138 conditions per place. [2025-01-10 06:47:37,384 INFO L140 encePairwiseOnDemand]: 209/215 looper letters, 139 selfloop transitions, 3 changer transitions 0/223 dead transitions. [2025-01-10 06:47:37,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 223 transitions, 778 flow [2025-01-10 06:47:37,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:47:37,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:47:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 472 transitions. [2025-01-10 06:47:37,390 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5488372093023256 [2025-01-10 06:47:37,390 INFO L175 Difference]: Start difference. First operand has 179 places, 178 transitions, 404 flow. Second operand 4 states and 472 transitions. [2025-01-10 06:47:37,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 223 transitions, 778 flow [2025-01-10 06:47:37,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 223 transitions, 774 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:47:37,393 INFO L231 Difference]: Finished difference. Result has 182 places, 180 transitions, 424 flow [2025-01-10 06:47:37,393 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=424, PETRI_PLACES=182, PETRI_TRANSITIONS=180} [2025-01-10 06:47:37,393 INFO L279 CegarLoopForPetriNet]: 170 programPoint places, 12 predicate places. [2025-01-10 06:47:37,394 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 180 transitions, 424 flow [2025-01-10 06:47:37,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:37,394 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:37,394 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:37,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-10 06:47:37,394 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-01-10 06:47:37,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:37,395 INFO L85 PathProgramCache]: Analyzing trace with hash 52860194, now seen corresponding path program 1 times [2025-01-10 06:47:37,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:37,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090329736] [2025-01-10 06:47:37,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:37,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:37,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 06:47:37,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 06:47:37,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:37,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:37,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:37,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090329736] [2025-01-10 06:47:37,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090329736] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:37,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786479654] [2025-01-10 06:47:37,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:37,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:37,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:37,496 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) [2025-01-10 06:47:37,498 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 [2025-01-10 06:47:37,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 06:47:37,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 06:47:37,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:37,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:37,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 06:47:37,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:37,604 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:47:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:37,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786479654] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:47:37,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:47:37,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-01-10 06:47:37,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264482820] [2025-01-10 06:47:37,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:47:37,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 06:47:37,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:37,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 06:47:37,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-01-10 06:47:37,692 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 215 [2025-01-10 06:47:37,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 180 transitions, 424 flow. Second operand has 18 states, 18 states have (on average 85.27777777777777) internal successors, (1535), 18 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:47:37,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:37,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 215 [2025-01-10 06:47:37,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand