./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_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 566e2cbe460cf96671c9cef5a53ce51910e23c462e96f394be80b957976729c5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:45:54,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:45:54,201 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:45:54,205 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:45:54,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:45:54,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:45:54,226 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:45:54,227 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:45:54,227 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:45:54,227 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:45:54,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:45:54,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:45:54,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:45:54,227 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:45:54,227 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:45:54,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:45:54,228 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:45:54,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:45:54,228 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:45:54,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:45:54,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:45:54,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:45:54,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:45:54,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:45:54,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:45:54,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:45:54,229 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 -> 566e2cbe460cf96671c9cef5a53ce51910e23c462e96f394be80b957976729c5 [2025-02-06 18:45:54,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:45:54,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:45:54,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:45:54,465 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:45:54,465 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:45:54,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i [2025-02-06 18:45:55,604 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c6cc0ce05/80d8ae0d8a4a4b64a3aef02a2bb56645/FLAG48e1ec80c [2025-02-06 18:45:55,887 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:45:55,888 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i [2025-02-06 18:45:55,899 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c6cc0ce05/80d8ae0d8a4a4b64a3aef02a2bb56645/FLAG48e1ec80c [2025-02-06 18:45:55,911 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c6cc0ce05/80d8ae0d8a4a4b64a3aef02a2bb56645 [2025-02-06 18:45:55,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:45:55,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:45:55,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:45:55,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:45:55,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:45:55,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:45:55" (1/1) ... [2025-02-06 18:45:55,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f06443e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:55, skipping insertion in model container [2025-02-06 18:45:55,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:45:55" (1/1) ... [2025-02-06 18:45:55,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:45:56,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:45:56,194 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:45:56,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:45:56,257 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:45:56,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56 WrapperNode [2025-02-06 18:45:56,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:45:56,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:45:56,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:45:56,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:45:56,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,296 INFO L138 Inliner]: procedures = 272, calls = 110, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 342 [2025-02-06 18:45:56,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:45:56,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:45:56,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:45:56,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:45:56,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,306 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,320 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]. [2025-02-06 18:45:56,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,334 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:45:56,347 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:45:56,347 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:45:56,347 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:45:56,348 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (1/1) ... [2025-02-06 18:45:56,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:45:56,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:45:56,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 18:45:56,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 18:45:56,391 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:45:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 18:45:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 18:45:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:45:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:45:56,392 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:45:56,513 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:45:56,515 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:45:56,802 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L953: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-06 18:45:56,802 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-06 18:45:56,856 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:45:56,857 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:45:57,157 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:45:57,158 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:45:57,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:45:57 BoogieIcfgContainer [2025-02-06 18:45:57,159 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:45:57,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:45:57,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:45:57,164 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:45:57,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:45:55" (1/3) ... [2025-02-06 18:45:57,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3260d3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:45:57, skipping insertion in model container [2025-02-06 18:45:57,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:45:56" (2/3) ... [2025-02-06 18:45:57,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3260d3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:45:57, skipping insertion in model container [2025-02-06 18:45:57,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:45:57" (3/3) ... [2025-02-06 18:45:57,167 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_72-funloop_hard_racing.i [2025-02-06 18:45:57,176 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:45:57,179 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_72-funloop_hard_racing.i that has 2 procedures, 138 locations, 1 initial locations, 20 loop locations, and 22 error locations. [2025-02-06 18:45:57,179 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:45:57,218 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 18:45:57,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 175 transitions, 357 flow [2025-02-06 18:45:57,326 INFO L124 PetriNetUnfolderBase]: 60/277 cut-off events. [2025-02-06 18:45:57,327 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:45:57,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 277 events. 60/277 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1431 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 160. Up to 8 conditions per place. [2025-02-06 18:45:57,335 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 175 transitions, 357 flow [2025-02-06 18:45:57,343 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 174 transitions, 355 flow [2025-02-06 18:45:57,352 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:45:57,367 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;@3c5e3966, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:45:57,367 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2025-02-06 18:45:57,375 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:45:57,375 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:45:57,375 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:45:57,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:57,376 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:45:57,376 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:45:57,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:57,384 INFO L85 PathProgramCache]: Analyzing trace with hash 858862, now seen corresponding path program 1 times [2025-02-06 18:45:57,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:57,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154686617] [2025-02-06 18:45:57,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:57,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:57,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:45:57,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:45:57,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:57,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:57,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:45:57,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:45:57,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154686617] [2025-02-06 18:45:57,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154686617] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:45:57,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:45:57,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:45:57,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934123773] [2025-02-06 18:45:57,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:45:57,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:45:57,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:45:57,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:45:57,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:45:57,699 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 175 [2025-02-06 18:45:57,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 174 transitions, 355 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:45:57,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:45:57,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 175 [2025-02-06 18:45:57,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:45:58,188 INFO L124 PetriNetUnfolderBase]: 949/3084 cut-off events. [2025-02-06 18:45:58,188 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:45:58,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4898 conditions, 3084 events. 949/3084 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 25599 event pairs, 800 based on Foata normal form. 774/3465 useless extension candidates. Maximal degree in co-relation 4743. Up to 1807 conditions per place. [2025-02-06 18:45:58,203 INFO L140 encePairwiseOnDemand]: 139/175 looper letters, 69 selfloop transitions, 3 changer transitions 0/146 dead transitions. [2025-02-06 18:45:58,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 146 transitions, 443 flow [2025-02-06 18:45:58,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:45:58,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:45:58,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 401 transitions. [2025-02-06 18:45:58,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5728571428571428 [2025-02-06 18:45:58,214 INFO L175 Difference]: Start difference. First operand has 141 places, 174 transitions, 355 flow. Second operand 4 states and 401 transitions. [2025-02-06 18:45:58,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 146 transitions, 443 flow [2025-02-06 18:45:58,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 146 transitions, 443 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:45:58,222 INFO L231 Difference]: Finished difference. Result has 146 places, 146 transitions, 319 flow [2025-02-06 18:45:58,224 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=319, PETRI_PLACES=146, PETRI_TRANSITIONS=146} [2025-02-06 18:45:58,226 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 5 predicate places. [2025-02-06 18:45:58,226 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 146 transitions, 319 flow [2025-02-06 18:45:58,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:45:58,226 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:58,227 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:45:58,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:45:58,227 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:45:58,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:58,228 INFO L85 PathProgramCache]: Analyzing trace with hash -182756208, now seen corresponding path program 1 times [2025-02-06 18:45:58,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:58,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883709584] [2025-02-06 18:45:58,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:58,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:58,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:45:58,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:45:58,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:58,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:45:58,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:45:58,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883709584] [2025-02-06 18:45:58,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883709584] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:45:58,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160024850] [2025-02-06 18:45:58,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:58,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:45:58,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:45:58,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:45:58,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 18:45:58,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:45:58,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:45:58,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:58,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:58,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:45:58,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:45:58,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:45:58,480 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:45:58,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160024850] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:45:58,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:45:58,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:45:58,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70682938] [2025-02-06 18:45:58,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:45:58,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:45:58,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:45:58,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:45:58,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:45:58,490 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 175 [2025-02-06 18:45:58,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 146 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:45:58,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:45:58,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 175 [2025-02-06 18:45:58,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:45:58,871 INFO L124 PetriNetUnfolderBase]: 949/3083 cut-off events. [2025-02-06 18:45:58,871 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 18:45:58,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4908 conditions, 3083 events. 949/3083 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 25589 event pairs, 800 based on Foata normal form. 1/2691 useless extension candidates. Maximal degree in co-relation 4890. Up to 1802 conditions per place. [2025-02-06 18:45:58,884 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 65 selfloop transitions, 6 changer transitions 0/145 dead transitions. [2025-02-06 18:45:58,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 145 transitions, 457 flow [2025-02-06 18:45:58,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:45:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:45:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 516 transitions. [2025-02-06 18:45:58,889 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49142857142857144 [2025-02-06 18:45:58,889 INFO L175 Difference]: Start difference. First operand has 146 places, 146 transitions, 319 flow. Second operand 6 states and 516 transitions. [2025-02-06 18:45:58,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 145 transitions, 457 flow [2025-02-06 18:45:58,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 145 transitions, 455 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:45:58,892 INFO L231 Difference]: Finished difference. Result has 149 places, 145 transitions, 325 flow [2025-02-06 18:45:58,893 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=325, PETRI_PLACES=149, PETRI_TRANSITIONS=145} [2025-02-06 18:45:58,893 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 8 predicate places. [2025-02-06 18:45:58,893 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 145 transitions, 325 flow [2025-02-06 18:45:58,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:45:58,894 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:58,894 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:45:58,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 18:45:59,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:45:59,099 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:45:59,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:59,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1370474460, now seen corresponding path program 1 times [2025-02-06 18:45:59,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:59,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872807859] [2025-02-06 18:45:59,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:59,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:59,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:45:59,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:45:59,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:59,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:59,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:45:59,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:45:59,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872807859] [2025-02-06 18:45:59,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872807859] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:45:59,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:45:59,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:45:59,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907479667] [2025-02-06 18:45:59,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:45:59,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:45:59,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:45:59,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:45:59,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:45:59,178 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 175 [2025-02-06 18:45:59,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 145 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:45:59,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:45:59,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 175 [2025-02-06 18:45:59,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:45:59,453 INFO L124 PetriNetUnfolderBase]: 949/3082 cut-off events. [2025-02-06 18:45:59,453 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-06 18:45:59,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4910 conditions, 3082 events. 949/3082 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 25588 event pairs, 800 based on Foata normal form. 1/2691 useless extension candidates. Maximal degree in co-relation 4886. Up to 1805 conditions per place. [2025-02-06 18:45:59,463 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 66 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2025-02-06 18:45:59,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 144 transitions, 461 flow [2025-02-06 18:45:59,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:45:59,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:45:59,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2025-02-06 18:45:59,465 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5542857142857143 [2025-02-06 18:45:59,465 INFO L175 Difference]: Start difference. First operand has 149 places, 145 transitions, 325 flow. Second operand 3 states and 291 transitions. [2025-02-06 18:45:59,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 144 transitions, 461 flow [2025-02-06 18:45:59,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 144 transitions, 439 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-06 18:45:59,470 INFO L231 Difference]: Finished difference. Result has 144 places, 144 transitions, 307 flow [2025-02-06 18:45:59,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=144, PETRI_TRANSITIONS=144} [2025-02-06 18:45:59,471 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 3 predicate places. [2025-02-06 18:45:59,471 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 144 transitions, 307 flow [2025-02-06 18:45:59,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:45:59,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:45:59,472 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:45:59,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:45:59,472 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:45:59,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:45:59,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1526917718, now seen corresponding path program 1 times [2025-02-06 18:45:59,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:45:59,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541757322] [2025-02-06 18:45:59,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:59,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:45:59,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:45:59,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:45:59,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:59,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:45:59,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:45:59,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541757322] [2025-02-06 18:45:59,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541757322] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:45:59,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726329965] [2025-02-06 18:45:59,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:45:59,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:45:59,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:45:59,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:45:59,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 18:45:59,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:45:59,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:45:59,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:45:59,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:45:59,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:45:59,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:45:59,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:45:59,651 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:45:59,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:45:59,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726329965] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:45:59,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:45:59,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-02-06 18:45:59,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200664528] [2025-02-06 18:45:59,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:45:59,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:45:59,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:45:59,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:45:59,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:45:59,691 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 175 [2025-02-06 18:45:59,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 144 transitions, 307 flow. Second operand has 10 states, 10 states have (on average 75.3) internal successors, (753), 10 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:45:59,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:45:59,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 175 [2025-02-06 18:45:59,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:00,080 INFO L124 PetriNetUnfolderBase]: 949/3086 cut-off events. [2025-02-06 18:46:00,081 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-02-06 18:46:00,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4913 conditions, 3086 events. 949/3086 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 25562 event pairs, 800 based on Foata normal form. 2/2697 useless extension candidates. Maximal degree in co-relation 4879. Up to 1803 conditions per place. [2025-02-06 18:46:00,091 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 66 selfloop transitions, 7 changer transitions 0/147 dead transitions. [2025-02-06 18:46:00,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 147 transitions, 468 flow [2025-02-06 18:46:00,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:46:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:46:00,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 593 transitions. [2025-02-06 18:46:00,093 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4840816326530612 [2025-02-06 18:46:00,093 INFO L175 Difference]: Start difference. First operand has 144 places, 144 transitions, 307 flow. Second operand 7 states and 593 transitions. [2025-02-06 18:46:00,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 147 transitions, 468 flow [2025-02-06 18:46:00,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 147 transitions, 454 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:46:00,100 INFO L231 Difference]: Finished difference. Result has 150 places, 147 transitions, 333 flow [2025-02-06 18:46:00,100 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=333, PETRI_PLACES=150, PETRI_TRANSITIONS=147} [2025-02-06 18:46:00,100 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 9 predicate places. [2025-02-06 18:46:00,100 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 147 transitions, 333 flow [2025-02-06 18:46:00,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.3) internal successors, (753), 10 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:00,101 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:00,101 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-02-06 18:46:00,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 18:46:00,301 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 [2025-02-06 18:46:00,304 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:46:00,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:00,305 INFO L85 PathProgramCache]: Analyzing trace with hash -751673578, now seen corresponding path program 2 times [2025-02-06 18:46:00,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:00,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206194921] [2025-02-06 18:46:00,305 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:46:00,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:00,315 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-02-06 18:46:00,320 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 15 statements. [2025-02-06 18:46:00,320 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:46:00,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:00,354 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 18:46:00,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:00,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206194921] [2025-02-06 18:46:00,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206194921] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:00,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:46:00,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:46:00,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783044697] [2025-02-06 18:46:00,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:00,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:46:00,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:00,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:46:00,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:46:00,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2025-02-06 18:46:00,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 147 transitions, 333 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:00,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:00,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2025-02-06 18:46:00,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:00,656 INFO L124 PetriNetUnfolderBase]: 927/2729 cut-off events. [2025-02-06 18:46:00,656 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-06 18:46:00,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4530 conditions, 2729 events. 927/2729 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 21757 event pairs, 0 based on Foata normal form. 21/2473 useless extension candidates. Maximal degree in co-relation 4491. Up to 1711 conditions per place. [2025-02-06 18:46:00,666 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 114 selfloop transitions, 3 changer transitions 0/188 dead transitions. [2025-02-06 18:46:00,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 188 transitions, 649 flow [2025-02-06 18:46:00,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:46:00,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:46:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 407 transitions. [2025-02-06 18:46:00,668 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5814285714285714 [2025-02-06 18:46:00,668 INFO L175 Difference]: Start difference. First operand has 150 places, 147 transitions, 333 flow. Second operand 4 states and 407 transitions. [2025-02-06 18:46:00,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 188 transitions, 649 flow [2025-02-06 18:46:00,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 188 transitions, 645 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:46:00,671 INFO L231 Difference]: Finished difference. Result has 150 places, 145 transitions, 335 flow [2025-02-06 18:46:00,672 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=335, PETRI_PLACES=150, PETRI_TRANSITIONS=145} [2025-02-06 18:46:00,672 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 9 predicate places. [2025-02-06 18:46:00,672 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 145 transitions, 335 flow [2025-02-06 18:46:00,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:00,673 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:00,673 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:46:00,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:46:00,673 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:46:00,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:00,673 INFO L85 PathProgramCache]: Analyzing trace with hash 852690503, now seen corresponding path program 1 times [2025-02-06 18:46:00,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:00,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307541140] [2025-02-06 18:46:00,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:00,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:00,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 18:46:00,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 18:46:00,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:00,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:00,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:00,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:00,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307541140] [2025-02-06 18:46:00,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307541140] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:46:00,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004144482] [2025-02-06 18:46:00,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:00,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:46:00,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:46:00,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:46:00,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 18:46:00,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 18:46:00,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 18:46:00,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:00,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:00,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 18:46:00,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:46:00,879 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:00,879 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:46:00,941 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:00,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004144482] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:46:00,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:46:00,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-06 18:46:00,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612414600] [2025-02-06 18:46:00,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:46:00,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 18:46:00,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:00,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 18:46:00,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-06 18:46:00,957 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 175 [2025-02-06 18:46:00,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 145 transitions, 335 flow. Second operand has 18 states, 18 states have (on average 75.22222222222223) internal successors, (1354), 18 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:00,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:00,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 175 [2025-02-06 18:46:00,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:01,302 INFO L124 PetriNetUnfolderBase]: 946/2988 cut-off events. [2025-02-06 18:46:01,302 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2025-02-06 18:46:01,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4848 conditions, 2988 events. 946/2988 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 24407 event pairs, 800 based on Foata normal form. 4/2634 useless extension candidates. Maximal degree in co-relation 4773. Up to 1760 conditions per place. [2025-02-06 18:46:01,314 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 66 selfloop transitions, 15 changer transitions 0/153 dead transitions. [2025-02-06 18:46:01,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 153 transitions, 545 flow [2025-02-06 18:46:01,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 18:46:01,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-06 18:46:01,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1195 transitions. [2025-02-06 18:46:01,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4552380952380952 [2025-02-06 18:46:01,317 INFO L175 Difference]: Start difference. First operand has 150 places, 145 transitions, 335 flow. Second operand 15 states and 1195 transitions. [2025-02-06 18:46:01,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 153 transitions, 545 flow [2025-02-06 18:46:01,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 153 transitions, 539 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:46:01,319 INFO L231 Difference]: Finished difference. Result has 165 places, 153 transitions, 426 flow [2025-02-06 18:46:01,320 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=426, PETRI_PLACES=165, PETRI_TRANSITIONS=153} [2025-02-06 18:46:01,320 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 24 predicate places. [2025-02-06 18:46:01,320 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 153 transitions, 426 flow [2025-02-06 18:46:01,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 75.22222222222223) internal successors, (1354), 18 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:01,321 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:01,321 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:46:01,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 18:46:01,526 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 [2025-02-06 18:46:01,526 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:46:01,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:01,527 INFO L85 PathProgramCache]: Analyzing trace with hash -2017764153, now seen corresponding path program 2 times [2025-02-06 18:46:01,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:01,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493782826] [2025-02-06 18:46:01,527 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:46:01,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:01,534 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-02-06 18:46:01,545 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 18:46:01,545 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:46:01,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:01,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:01,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493782826] [2025-02-06 18:46:01,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493782826] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:46:01,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558917622] [2025-02-06 18:46:01,758 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:46:01,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:46:01,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:46:01,760 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:46:01,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 18:46:01,809 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-02-06 18:46:01,835 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 18:46:01,835 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:46:01,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:01,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 18:46:01,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:46:01,876 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:01,876 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:46:02,024 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:02,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558917622] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:46:02,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:46:02,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-02-06 18:46:02,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685156778] [2025-02-06 18:46:02,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:46:02,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 18:46:02,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:02,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 18:46:02,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-06 18:46:02,045 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 175 [2025-02-06 18:46:02,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 153 transitions, 426 flow. Second operand has 23 states, 23 states have (on average 75.21739130434783) internal successors, (1730), 23 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:02,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:02,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 175 [2025-02-06 18:46:02,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:02,499 INFO L124 PetriNetUnfolderBase]: 946/2997 cut-off events. [2025-02-06 18:46:02,499 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2025-02-06 18:46:02,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4889 conditions, 2997 events. 946/2997 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 24377 event pairs, 800 based on Foata normal form. 3/2642 useless extension candidates. Maximal degree in co-relation 4754. Up to 1760 conditions per place. [2025-02-06 18:46:02,512 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 66 selfloop transitions, 21 changer transitions 0/159 dead transitions. [2025-02-06 18:46:02,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 159 transitions, 654 flow [2025-02-06 18:46:02,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 18:46:02,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 18:46:02,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1644 transitions. [2025-02-06 18:46:02,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473469387755102 [2025-02-06 18:46:02,517 INFO L175 Difference]: Start difference. First operand has 165 places, 153 transitions, 426 flow. Second operand 21 states and 1644 transitions. [2025-02-06 18:46:02,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 159 transitions, 654 flow [2025-02-06 18:46:02,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 159 transitions, 644 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-06 18:46:02,520 INFO L231 Difference]: Finished difference. Result has 184 places, 159 transitions, 527 flow [2025-02-06 18:46:02,521 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=527, PETRI_PLACES=184, PETRI_TRANSITIONS=159} [2025-02-06 18:46:02,522 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, 43 predicate places. [2025-02-06 18:46:02,522 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 159 transitions, 527 flow [2025-02-06 18:46:02,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 75.21739130434783) internal successors, (1730), 23 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:02,523 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:02,523 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:46:02,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 18:46:02,728 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 [2025-02-06 18:46:02,728 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-06 18:46:02,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:02,728 INFO L85 PathProgramCache]: Analyzing trace with hash -211789147, now seen corresponding path program 3 times [2025-02-06 18:46:02,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:02,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891618387] [2025-02-06 18:46:02,728 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:46:02,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:02,740 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 11 equivalence classes. [2025-02-06 18:46:02,791 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 18:46:02,791 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 18:46:02,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:46:02,791 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 18:46:02,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-06 18:46:02,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 18:46:02,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:02,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 18:46:02,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 18:46:02,833 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 18:46:02,834 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2025-02-06 18:46:02,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2025-02-06 18:46:02,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2025-02-06 18:46:02,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2025-02-06 18:46:02,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2025-02-06 18:46:02,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:46:02,838 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2025-02-06 18:46:02,840 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 18:46:02,840 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 18:46:02,862 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 18:46:02,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 230 transitions, 476 flow [2025-02-06 18:46:02,887 INFO L124 PetriNetUnfolderBase]: 97/453 cut-off events. [2025-02-06 18:46:02,887 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-06 18:46:02,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 453 events. 97/453 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2656 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 279. Up to 12 conditions per place. [2025-02-06 18:46:02,890 INFO L82 GeneralOperation]: Start removeDead. Operand has 185 places, 230 transitions, 476 flow [2025-02-06 18:46:02,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 230 transitions, 476 flow [2025-02-06 18:46:02,894 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:46:02,896 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;@3c5e3966, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:46:02,896 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2025-02-06 18:46:02,897 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:46:02,897 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:46:02,897 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:46:02,897 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:02,897 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:46:02,897 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-02-06 18:46:02,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:02,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1087252, now seen corresponding path program 1 times [2025-02-06 18:46:02,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:02,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134299554] [2025-02-06 18:46:02,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:02,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:02,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:46:02,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:46:02,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:02,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:02,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:02,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134299554] [2025-02-06 18:46:02,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134299554] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:02,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:46:02,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:46:02,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576774880] [2025-02-06 18:46:02,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:02,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:46:02,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:02,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:46:02,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:46:02,950 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 230 [2025-02-06 18:46:02,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 230 transitions, 476 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:02,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:02,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 230 [2025-02-06 18:46:02,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:08,095 INFO L124 PetriNetUnfolderBase]: 39869/89261 cut-off events. [2025-02-06 18:46:08,096 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2025-02-06 18:46:08,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147411 conditions, 89261 events. 39869/89261 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 2490. Compared 1058858 event pairs, 34920 based on Foata normal form. 24764/102464 useless extension candidates. Maximal degree in co-relation 109732. Up to 58036 conditions per place. [2025-02-06 18:46:08,529 INFO L140 encePairwiseOnDemand]: 184/230 looper letters, 93 selfloop transitions, 3 changer transitions 0/192 dead transitions. [2025-02-06 18:46:08,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 192 transitions, 592 flow [2025-02-06 18:46:08,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:46:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:46:08,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 523 transitions. [2025-02-06 18:46:08,539 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5684782608695652 [2025-02-06 18:46:08,540 INFO L175 Difference]: Start difference. First operand has 185 places, 230 transitions, 476 flow. Second operand 4 states and 523 transitions. [2025-02-06 18:46:08,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 192 transitions, 592 flow [2025-02-06 18:46:08,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 192 transitions, 592 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:46:08,543 INFO L231 Difference]: Finished difference. Result has 190 places, 192 transitions, 420 flow [2025-02-06 18:46:08,543 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=420, PETRI_PLACES=190, PETRI_TRANSITIONS=192} [2025-02-06 18:46:08,545 INFO L279 CegarLoopForPetriNet]: 185 programPoint places, 5 predicate places. [2025-02-06 18:46:08,546 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 192 transitions, 420 flow [2025-02-06 18:46:08,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:08,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:08,546 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:46:08,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:46:08,546 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-02-06 18:46:08,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:08,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1968495920, now seen corresponding path program 1 times [2025-02-06 18:46:08,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:08,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517840198] [2025-02-06 18:46:08,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:08,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:08,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:46:08,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:46:08,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:08,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:08,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:08,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517840198] [2025-02-06 18:46:08,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517840198] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:46:08,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751013763] [2025-02-06 18:46:08,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:08,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:46:08,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:46:08,620 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:46:08,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 18:46:08,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:46:08,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:46:08,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:08,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:08,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:46:08,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:46:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:08,716 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:46:08,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751013763] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:08,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:46:08,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:46:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913781854] [2025-02-06 18:46:08,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:08,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:46:08,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:08,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:46:08,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:46:08,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 230 [2025-02-06 18:46:08,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 192 transitions, 420 flow. Second operand has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:08,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:08,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 230 [2025-02-06 18:46:08,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:13,308 INFO L124 PetriNetUnfolderBase]: 39869/89260 cut-off events. [2025-02-06 18:46:13,308 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2025-02-06 18:46:13,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147421 conditions, 89260 events. 39869/89260 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 2490. Compared 1058512 event pairs, 34920 based on Foata normal form. 1/77700 useless extension candidates. Maximal degree in co-relation 147402. Up to 58031 conditions per place. [2025-02-06 18:46:13,706 INFO L140 encePairwiseOnDemand]: 225/230 looper letters, 89 selfloop transitions, 6 changer transitions 0/191 dead transitions. [2025-02-06 18:46:13,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 191 transitions, 606 flow [2025-02-06 18:46:13,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:46:13,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:46:13,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 672 transitions. [2025-02-06 18:46:13,708 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48695652173913045 [2025-02-06 18:46:13,708 INFO L175 Difference]: Start difference. First operand has 190 places, 192 transitions, 420 flow. Second operand 6 states and 672 transitions. [2025-02-06 18:46:13,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 191 transitions, 606 flow [2025-02-06 18:46:13,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 191 transitions, 604 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:46:13,711 INFO L231 Difference]: Finished difference. Result has 193 places, 191 transitions, 426 flow [2025-02-06 18:46:13,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=426, PETRI_PLACES=193, PETRI_TRANSITIONS=191} [2025-02-06 18:46:13,712 INFO L279 CegarLoopForPetriNet]: 185 programPoint places, 8 predicate places. [2025-02-06 18:46:13,712 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 191 transitions, 426 flow [2025-02-06 18:46:13,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:13,712 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:13,712 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:46:13,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 18:46:13,913 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 [2025-02-06 18:46:13,913 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-02-06 18:46:13,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:13,913 INFO L85 PathProgramCache]: Analyzing trace with hash -893830454, now seen corresponding path program 1 times [2025-02-06 18:46:13,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:13,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467427821] [2025-02-06 18:46:13,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:13,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:13,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:46:13,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:46:13,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:13,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:13,950 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:46:13,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:13,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467427821] [2025-02-06 18:46:13,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467427821] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:13,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:46:13,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:46:13,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811508131] [2025-02-06 18:46:13,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:13,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:46:13,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:13,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:46:13,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:46:13,956 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 230 [2025-02-06 18:46:13,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 191 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:13,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:13,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 230 [2025-02-06 18:46:13,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:18,673 INFO L124 PetriNetUnfolderBase]: 39869/89259 cut-off events. [2025-02-06 18:46:18,674 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2025-02-06 18:46:18,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147423 conditions, 89259 events. 39869/89259 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 2492. Compared 1058826 event pairs, 34920 based on Foata normal form. 1/77700 useless extension candidates. Maximal degree in co-relation 147398. Up to 58034 conditions per place. [2025-02-06 18:46:19,103 INFO L140 encePairwiseOnDemand]: 227/230 looper letters, 90 selfloop transitions, 4 changer transitions 0/190 dead transitions. [2025-02-06 18:46:19,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 190 transitions, 610 flow [2025-02-06 18:46:19,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:46:19,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:46:19,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2025-02-06 18:46:19,104 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5521739130434783 [2025-02-06 18:46:19,105 INFO L175 Difference]: Start difference. First operand has 193 places, 191 transitions, 426 flow. Second operand 3 states and 381 transitions. [2025-02-06 18:46:19,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 190 transitions, 610 flow [2025-02-06 18:46:19,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 190 transitions, 588 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-06 18:46:19,108 INFO L231 Difference]: Finished difference. Result has 188 places, 190 transitions, 408 flow [2025-02-06 18:46:19,109 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=188, PETRI_TRANSITIONS=190} [2025-02-06 18:46:19,110 INFO L279 CegarLoopForPetriNet]: 185 programPoint places, 3 predicate places. [2025-02-06 18:46:19,110 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 190 transitions, 408 flow [2025-02-06 18:46:19,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:19,110 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:19,110 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:46:19,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:46:19,110 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-02-06 18:46:19,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:19,112 INFO L85 PathProgramCache]: Analyzing trace with hash 20365105, now seen corresponding path program 1 times [2025-02-06 18:46:19,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:19,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701010154] [2025-02-06 18:46:19,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:19,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:19,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:46:19,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:46:19,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:19,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:19,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:19,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701010154] [2025-02-06 18:46:19,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701010154] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:46:19,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468332510] [2025-02-06 18:46:19,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:19,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:46:19,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:46:19,175 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:46:19,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 18:46:19,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:46:19,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:46:19,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:19,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:19,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:46:19,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:46:19,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:19,270 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:46:19,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:19,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468332510] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:46:19,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:46:19,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-02-06 18:46:19,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714106397] [2025-02-06 18:46:19,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:46:19,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:46:19,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:19,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:46:19,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:46:19,301 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 230 [2025-02-06 18:46:19,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 190 transitions, 408 flow. Second operand has 10 states, 10 states have (on average 97.3) internal successors, (973), 10 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:19,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:19,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 230 [2025-02-06 18:46:19,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:24,259 INFO L124 PetriNetUnfolderBase]: 39869/89263 cut-off events. [2025-02-06 18:46:24,259 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2025-02-06 18:46:24,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147426 conditions, 89263 events. 39869/89263 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 2492. Compared 1058803 event pairs, 34920 based on Foata normal form. 2/77706 useless extension candidates. Maximal degree in co-relation 147391. Up to 58032 conditions per place. [2025-02-06 18:46:24,601 INFO L140 encePairwiseOnDemand]: 226/230 looper letters, 90 selfloop transitions, 7 changer transitions 0/193 dead transitions. [2025-02-06 18:46:24,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 193 transitions, 617 flow [2025-02-06 18:46:24,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:46:24,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:46:24,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 771 transitions. [2025-02-06 18:46:24,603 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4788819875776398 [2025-02-06 18:46:24,603 INFO L175 Difference]: Start difference. First operand has 188 places, 190 transitions, 408 flow. Second operand 7 states and 771 transitions. [2025-02-06 18:46:24,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 193 transitions, 617 flow [2025-02-06 18:46:24,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 193 transitions, 603 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:46:24,606 INFO L231 Difference]: Finished difference. Result has 194 places, 193 transitions, 434 flow [2025-02-06 18:46:24,606 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=434, PETRI_PLACES=194, PETRI_TRANSITIONS=193} [2025-02-06 18:46:24,607 INFO L279 CegarLoopForPetriNet]: 185 programPoint places, 9 predicate places. [2025-02-06 18:46:24,607 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 193 transitions, 434 flow [2025-02-06 18:46:24,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 97.3) internal successors, (973), 10 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:24,607 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:24,607 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-02-06 18:46:24,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 18:46:24,812 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 [2025-02-06 18:46:24,812 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-02-06 18:46:24,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:24,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1802406479, now seen corresponding path program 2 times [2025-02-06 18:46:24,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:24,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662257882] [2025-02-06 18:46:24,813 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:46:24,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:24,818 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-02-06 18:46:24,822 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 15 statements. [2025-02-06 18:46:24,822 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:46:24,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:24,846 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 18:46:24,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:24,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662257882] [2025-02-06 18:46:24,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662257882] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:24,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:46:24,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:46:24,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604352419] [2025-02-06 18:46:24,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:24,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:46:24,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:24,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:46:24,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:46:24,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 230 [2025-02-06 18:46:24,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 193 transitions, 434 flow. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:24,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:24,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 230 [2025-02-06 18:46:24,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:29,740 INFO L124 PetriNetUnfolderBase]: 41693/89315 cut-off events. [2025-02-06 18:46:29,741 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2025-02-06 18:46:29,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150451 conditions, 89315 events. 41693/89315 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 2405. Compared 1026426 event pairs, 18140 based on Foata normal form. 21/78440 useless extension candidates. Maximal degree in co-relation 150411. Up to 60939 conditions per place. [2025-02-06 18:46:30,143 INFO L140 encePairwiseOnDemand]: 224/230 looper letters, 142 selfloop transitions, 3 changer transitions 0/238 dead transitions. [2025-02-06 18:46:30,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 238 transitions, 814 flow [2025-02-06 18:46:30,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:46:30,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:46:30,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 523 transitions. [2025-02-06 18:46:30,145 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5684782608695652 [2025-02-06 18:46:30,145 INFO L175 Difference]: Start difference. First operand has 194 places, 193 transitions, 434 flow. Second operand 4 states and 523 transitions. [2025-02-06 18:46:30,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 238 transitions, 814 flow [2025-02-06 18:46:30,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 238 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:46:30,148 INFO L231 Difference]: Finished difference. Result has 197 places, 195 transitions, 454 flow [2025-02-06 18:46:30,148 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=454, PETRI_PLACES=197, PETRI_TRANSITIONS=195} [2025-02-06 18:46:30,148 INFO L279 CegarLoopForPetriNet]: 185 programPoint places, 12 predicate places. [2025-02-06 18:46:30,149 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 195 transitions, 454 flow [2025-02-06 18:46:30,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:30,149 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:30,149 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:46:30,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 18:46:30,149 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2025-02-06 18:46:30,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:30,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1403079762, now seen corresponding path program 1 times [2025-02-06 18:46:30,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:30,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475425278] [2025-02-06 18:46:30,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:30,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:30,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 18:46:30,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 18:46:30,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:30,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:30,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:30,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475425278] [2025-02-06 18:46:30,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475425278] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:46:30,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148552761] [2025-02-06 18:46:30,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:30,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:46:30,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:46:30,228 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:46:30,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 18:46:30,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 18:46:30,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 18:46:30,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:30,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:30,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 18:46:30,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:46:30,327 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:30,327 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:46:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:30,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148552761] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:46:30,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:46:30,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-06 18:46:30,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39185150] [2025-02-06 18:46:30,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:46:30,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 18:46:30,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:30,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 18:46:30,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-06 18:46:30,396 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 230 [2025-02-06 18:46:30,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 195 transitions, 454 flow. Second operand has 18 states, 18 states have (on average 97.27777777777777) internal successors, (1751), 18 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:30,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:30,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 230 [2025-02-06 18:46:30,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand