./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/test-context1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/test-context1.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:55:04,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:55:04,705 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:55:04,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:55:04,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:55:04,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:55:04,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:55:04,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:55:04,724 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:55:04,724 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:55:04,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:55:04,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:55:04,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:55:04,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:55:04,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:55:04,725 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:55:04,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:55:04,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:55:04,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:55:04,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:55:04,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:55:04,726 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:55:04,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:55:04,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:55:04,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:55:04,726 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:55:04,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:55:04,726 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:55:04,726 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:55:04,726 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 -> d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e [2025-02-06 18:55:04,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:55:04,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:55:04,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:55:04,946 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:55:04,946 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:55:04,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-context1.wvr.c [2025-02-06 18:55:06,120 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/19cdb4c9d/67ec0a6d07334bf980f79a5ee9e6405e/FLAGb9f696777 [2025-02-06 18:55:06,322 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:55:06,322 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c [2025-02-06 18:55:06,334 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/19cdb4c9d/67ec0a6d07334bf980f79a5ee9e6405e/FLAGb9f696777 [2025-02-06 18:55:06,361 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/19cdb4c9d/67ec0a6d07334bf980f79a5ee9e6405e [2025-02-06 18:55:06,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:55:06,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:55:06,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:55:06,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:55:06,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:55:06,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1308b4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06, skipping insertion in model container [2025-02-06 18:55:06,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,401 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:55:06,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:55:06,586 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:55:06,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:55:06,616 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:55:06,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06 WrapperNode [2025-02-06 18:55:06,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:55:06,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:55:06,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:55:06,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:55:06,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,643 INFO L138 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 142 [2025-02-06 18:55:06,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:55:06,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:55:06,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:55:06,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:55:06,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,658 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,670 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-02-06 18:55:06,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,675 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:55:06,686 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:55:06,686 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:55:06,686 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:55:06,687 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (1/1) ... [2025-02-06 18:55:06,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:55:06,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:55:06,712 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 18:55:06,715 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 18:55:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:55:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 18:55:06,735 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 18:55:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 18:55:06,735 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 18:55:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:55:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:55:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:55:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:55:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:55:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:55:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:55:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:55:06,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:55:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:55:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:55:06,737 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 18:55:06,796 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:55:06,797 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:55:07,016 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:55:07,017 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:55:07,204 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:55:07,204 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:55:07,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:55:07 BoogieIcfgContainer [2025-02-06 18:55:07,205 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:55:07,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:55:07,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:55:07,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:55:07,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:55:06" (1/3) ... [2025-02-06 18:55:07,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c80902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:55:07, skipping insertion in model container [2025-02-06 18:55:07,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:55:06" (2/3) ... [2025-02-06 18:55:07,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c80902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:55:07, skipping insertion in model container [2025-02-06 18:55:07,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:55:07" (3/3) ... [2025-02-06 18:55:07,214 INFO L128 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2025-02-06 18:55:07,227 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:55:07,228 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-context1.wvr.c that has 3 procedures, 38 locations, 1 initial locations, 3 loop locations, and 14 error locations. [2025-02-06 18:55:07,228 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:55:07,290 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 18:55:07,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 98 flow [2025-02-06 18:55:07,343 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2025-02-06 18:55:07,345 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 18:55:07,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 40 events. 5/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 105 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2025-02-06 18:55:07,347 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 98 flow [2025-02-06 18:55:07,349 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 38 transitions, 85 flow [2025-02-06 18:55:07,359 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:55:07,374 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;@c2a5129, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:55:07,375 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-02-06 18:55:07,378 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:55:07,378 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:55:07,378 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:55:07,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:07,379 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:55:07,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:07,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:07,384 INFO L85 PathProgramCache]: Analyzing trace with hash 419098, now seen corresponding path program 1 times [2025-02-06 18:55:07,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:07,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453730366] [2025-02-06 18:55:07,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:07,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:07,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:55:07,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:55:07,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:07,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:07,571 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 18:55:07,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:07,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453730366] [2025-02-06 18:55:07,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453730366] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:55:07,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:55:07,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:55:07,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237684816] [2025-02-06 18:55:07,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:55:07,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:55:07,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:07,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:55:07,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:55:07,601 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-06 18:55:07,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 18:55:07,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:07,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-06 18:55:07,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:07,795 INFO L124 PetriNetUnfolderBase]: 265/462 cut-off events. [2025-02-06 18:55:07,795 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-02-06 18:55:07,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 462 events. 265/462 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1945 event pairs, 224 based on Foata normal form. 1/305 useless extension candidates. Maximal degree in co-relation 885. Up to 456 conditions per place. [2025-02-06 18:55:07,804 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 26 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2025-02-06 18:55:07,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 135 flow [2025-02-06 18:55:07,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:55:07,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:55:07,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2025-02-06 18:55:07,815 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2025-02-06 18:55:07,816 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 85 flow. Second operand 4 states and 60 transitions. [2025-02-06 18:55:07,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 135 flow [2025-02-06 18:55:07,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:55:07,822 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 93 flow [2025-02-06 18:55:07,824 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2025-02-06 18:55:07,827 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2025-02-06 18:55:07,827 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 93 flow [2025-02-06 18:55:07,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 18:55:07,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:07,828 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:55:07,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:55:07,828 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:07,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:07,829 INFO L85 PathProgramCache]: Analyzing trace with hash -399183283, now seen corresponding path program 1 times [2025-02-06 18:55:07,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:07,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439542813] [2025-02-06 18:55:07,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:07,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:07,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:55:07,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:55:07,862 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:07,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:07,988 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 18:55:07,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:07,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439542813] [2025-02-06 18:55:07,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439542813] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:55:07,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141327590] [2025-02-06 18:55:07,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:07,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:07,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:55:07,993 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 18:55:07,995 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 18:55:08,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:55:08,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:55:08,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:08,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:08,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:55:08,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:55:08,091 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 18:55:08,091 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:55:08,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141327590] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:55:08,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:55:08,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:55:08,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712495718] [2025-02-06 18:55:08,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:55:08,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:55:08,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:08,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:55:08,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:55:08,099 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-06 18:55:08,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 93 flow. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 18:55:08,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:08,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-06 18:55:08,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:08,210 INFO L124 PetriNetUnfolderBase]: 265/461 cut-off events. [2025-02-06 18:55:08,210 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-06 18:55:08,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 461 events. 265/461 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1936 event pairs, 224 based on Foata normal form. 1/305 useless extension candidates. Maximal degree in co-relation 927. Up to 451 conditions per place. [2025-02-06 18:55:08,213 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 22 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2025-02-06 18:55:08,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 147 flow [2025-02-06 18:55:08,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:55:08,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:55:08,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2025-02-06 18:55:08,215 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2025-02-06 18:55:08,215 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 93 flow. Second operand 6 states and 60 transitions. [2025-02-06 18:55:08,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 147 flow [2025-02-06 18:55:08,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:55:08,216 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 100 flow [2025-02-06 18:55:08,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2025-02-06 18:55:08,216 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2025-02-06 18:55:08,216 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 100 flow [2025-02-06 18:55:08,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 18:55:08,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:08,216 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:08,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 18:55:08,417 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 18:55:08,418 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:08,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash 587838449, now seen corresponding path program 1 times [2025-02-06 18:55:08,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:08,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634529305] [2025-02-06 18:55:08,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:08,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:08,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:55:08,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:55:08,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:08,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:08,491 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 18:55:08,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:08,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634529305] [2025-02-06 18:55:08,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634529305] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:55:08,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:55:08,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:55:08,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247788349] [2025-02-06 18:55:08,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:55:08,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:55:08,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:08,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:55:08,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:55:08,493 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:08,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 18:55:08,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:08,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:08,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:08,593 INFO L124 PetriNetUnfolderBase]: 324/570 cut-off events. [2025-02-06 18:55:08,593 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-02-06 18:55:08,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1184 conditions, 570 events. 324/570 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2417 event pairs, 119 based on Foata normal form. 11/407 useless extension candidates. Maximal degree in co-relation 1154. Up to 425 conditions per place. [2025-02-06 18:55:08,598 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 36 selfloop transitions, 2 changer transitions 3/45 dead transitions. [2025-02-06 18:55:08,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 211 flow [2025-02-06 18:55:08,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:55:08,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:55:08,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2025-02-06 18:55:08,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2025-02-06 18:55:08,599 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 100 flow. Second operand 3 states and 66 transitions. [2025-02-06 18:55:08,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 211 flow [2025-02-06 18:55:08,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 189 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-06 18:55:08,600 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 102 flow [2025-02-06 18:55:08,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2025-02-06 18:55:08,601 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2025-02-06 18:55:08,601 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 102 flow [2025-02-06 18:55:08,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 18:55:08,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:08,601 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:55:08,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:55:08,601 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:08,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:08,601 INFO L85 PathProgramCache]: Analyzing trace with hash 510220486, now seen corresponding path program 1 times [2025-02-06 18:55:08,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:08,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256543829] [2025-02-06 18:55:08,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:08,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:08,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:55:08,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:55:08,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:08,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:55:08,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:08,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256543829] [2025-02-06 18:55:08,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256543829] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:55:08,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336796928] [2025-02-06 18:55:08,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:08,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:08,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:55:08,700 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 18:55:08,706 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 18:55:08,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:55:08,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:55:08,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:08,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:08,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:55:08,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:55:08,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:55:08,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:55:08,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:55:08,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336796928] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:55:08,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:55:08,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-06 18:55:08,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824063299] [2025-02-06 18:55:08,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:55:08,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:55:08,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:08,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:55:08,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:55:08,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-06 18:55:08,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 102 flow. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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 18:55:08,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:08,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-06 18:55:08,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:08,955 INFO L124 PetriNetUnfolderBase]: 327/582 cut-off events. [2025-02-06 18:55:08,955 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-02-06 18:55:08,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1373 conditions, 582 events. 327/582 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2536 event pairs, 285 based on Foata normal form. 3/408 useless extension candidates. Maximal degree in co-relation 1322. Up to 567 conditions per place. [2025-02-06 18:55:08,958 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 26 selfloop transitions, 13 changer transitions 0/42 dead transitions. [2025-02-06 18:55:08,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 210 flow [2025-02-06 18:55:08,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:55:08,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:55:08,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2025-02-06 18:55:08,959 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.21666666666666667 [2025-02-06 18:55:08,959 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 102 flow. Second operand 10 states and 91 transitions. [2025-02-06 18:55:08,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 210 flow [2025-02-06 18:55:08,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:55:08,960 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 174 flow [2025-02-06 18:55:08,960 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=174, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2025-02-06 18:55:08,961 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2025-02-06 18:55:08,961 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 174 flow [2025-02-06 18:55:08,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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 18:55:08,961 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:08,961 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:08,968 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 18:55:09,162 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 18:55:09,165 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:09,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:09,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1714209919, now seen corresponding path program 1 times [2025-02-06 18:55:09,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:09,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268443443] [2025-02-06 18:55:09,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:09,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:09,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:55:09,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:55:09,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:09,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:55:09,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:09,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268443443] [2025-02-06 18:55:09,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268443443] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:55:09,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:55:09,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:55:09,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994571073] [2025-02-06 18:55:09,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:55:09,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:55:09,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:09,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:55:09,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:55:09,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:09,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 18:55:09,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:09,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:09,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:09,312 INFO L124 PetriNetUnfolderBase]: 420/727 cut-off events. [2025-02-06 18:55:09,313 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2025-02-06 18:55:09,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1717 conditions, 727 events. 420/727 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2982 event pairs, 197 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 1682. Up to 360 conditions per place. [2025-02-06 18:55:09,316 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 50 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2025-02-06 18:55:09,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 321 flow [2025-02-06 18:55:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:55:09,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:55:09,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2025-02-06 18:55:09,318 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2025-02-06 18:55:09,318 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 174 flow. Second operand 3 states and 64 transitions. [2025-02-06 18:55:09,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 321 flow [2025-02-06 18:55:09,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 310 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-02-06 18:55:09,320 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 190 flow [2025-02-06 18:55:09,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2025-02-06 18:55:09,321 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2025-02-06 18:55:09,321 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 190 flow [2025-02-06 18:55:09,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 18:55:09,321 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:09,321 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:09,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:55:09,322 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:09,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:09,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1714209920, now seen corresponding path program 1 times [2025-02-06 18:55:09,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:09,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705906455] [2025-02-06 18:55:09,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:09,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:09,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:55:09,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:55:09,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:09,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:09,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:55:09,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:09,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705906455] [2025-02-06 18:55:09,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705906455] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:55:09,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:55:09,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:55:09,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889328434] [2025-02-06 18:55:09,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:55:09,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:55:09,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:09,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:55:09,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:55:09,389 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:09,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 18:55:09,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:09,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:09,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:09,484 INFO L124 PetriNetUnfolderBase]: 388/683 cut-off events. [2025-02-06 18:55:09,484 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2025-02-06 18:55:09,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 683 events. 388/683 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2823 event pairs, 198 based on Foata normal form. 0/506 useless extension candidates. Maximal degree in co-relation 1671. Up to 343 conditions per place. [2025-02-06 18:55:09,487 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 49 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2025-02-06 18:55:09,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 314 flow [2025-02-06 18:55:09,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:55:09,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:55:09,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2025-02-06 18:55:09,488 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48412698412698413 [2025-02-06 18:55:09,488 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 190 flow. Second operand 3 states and 61 transitions. [2025-02-06 18:55:09,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 314 flow [2025-02-06 18:55:09,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 55 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:55:09,489 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 189 flow [2025-02-06 18:55:09,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2025-02-06 18:55:09,490 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2025-02-06 18:55:09,490 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 189 flow [2025-02-06 18:55:09,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 18:55:09,490 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:09,490 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:09,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:55:09,491 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:09,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:09,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1714209926, now seen corresponding path program 1 times [2025-02-06 18:55:09,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:09,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003554843] [2025-02-06 18:55:09,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:09,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:09,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:55:09,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:55:09,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:09,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:09,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:55:09,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:09,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003554843] [2025-02-06 18:55:09,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003554843] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:55:09,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519571872] [2025-02-06 18:55:09,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:09,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:09,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:55:09,529 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 18:55:09,531 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 18:55:09,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:55:09,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:55:09,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:09,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:09,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:55:09,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:55:09,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:55:09,595 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:55:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:55:09,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519571872] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:55:09,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:55:09,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-02-06 18:55:09,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992238560] [2025-02-06 18:55:09,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:55:09,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:55:09,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:09,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:55:09,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:55:09,614 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:09,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 189 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 18:55:09,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:09,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:09,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:09,834 INFO L124 PetriNetUnfolderBase]: 1179/2014 cut-off events. [2025-02-06 18:55:09,834 INFO L125 PetriNetUnfolderBase]: For 603/603 co-relation queries the response was YES. [2025-02-06 18:55:09,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5066 conditions, 2014 events. 1179/2014 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 9678 event pairs, 257 based on Foata normal form. 17/1616 useless extension candidates. Maximal degree in co-relation 5029. Up to 504 conditions per place. [2025-02-06 18:55:09,840 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 99 selfloop transitions, 14 changer transitions 3/120 dead transitions. [2025-02-06 18:55:09,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 120 transitions, 684 flow [2025-02-06 18:55:09,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:55:09,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:55:09,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 162 transitions. [2025-02-06 18:55:09,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5510204081632653 [2025-02-06 18:55:09,842 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 189 flow. Second operand 7 states and 162 transitions. [2025-02-06 18:55:09,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 120 transitions, 684 flow [2025-02-06 18:55:09,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 120 transitions, 674 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:55:09,845 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 334 flow [2025-02-06 18:55:09,845 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=334, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2025-02-06 18:55:09,845 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 20 predicate places. [2025-02-06 18:55:09,845 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 334 flow [2025-02-06 18:55:09,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 18:55:09,846 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:09,846 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:09,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 18:55:10,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:10,046 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:10,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:10,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1403527613, now seen corresponding path program 1 times [2025-02-06 18:55:10,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:10,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631257623] [2025-02-06 18:55:10,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:10,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:10,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 18:55:10,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 18:55:10,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:10,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:55:10,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:10,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631257623] [2025-02-06 18:55:10,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631257623] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:55:10,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:55:10,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:55:10,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136163579] [2025-02-06 18:55:10,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:55:10,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:55:10,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:10,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:55:10,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:55:10,170 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:10,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 334 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 18:55:10,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:10,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:10,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:10,343 INFO L124 PetriNetUnfolderBase]: 1246/2150 cut-off events. [2025-02-06 18:55:10,344 INFO L125 PetriNetUnfolderBase]: For 2944/2944 co-relation queries the response was YES. [2025-02-06 18:55:10,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6198 conditions, 2150 events. 1246/2150 cut-off events. For 2944/2944 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10756 event pairs, 1095 based on Foata normal form. 12/1879 useless extension candidates. Maximal degree in co-relation 6156. Up to 2003 conditions per place. [2025-02-06 18:55:10,352 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 47 selfloop transitions, 2 changer transitions 14/67 dead transitions. [2025-02-06 18:55:10,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 67 transitions, 490 flow [2025-02-06 18:55:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:55:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:55:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2025-02-06 18:55:10,354 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2025-02-06 18:55:10,354 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 334 flow. Second operand 4 states and 70 transitions. [2025-02-06 18:55:10,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 67 transitions, 490 flow [2025-02-06 18:55:10,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 67 transitions, 490 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:55:10,361 INFO L231 Difference]: Finished difference. Result has 64 places, 53 transitions, 337 flow [2025-02-06 18:55:10,361 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=337, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2025-02-06 18:55:10,362 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 24 predicate places. [2025-02-06 18:55:10,362 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 337 flow [2025-02-06 18:55:10,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 18:55:10,363 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:10,363 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-06 18:55:10,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:55:10,363 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:10,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:10,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1951481511, now seen corresponding path program 2 times [2025-02-06 18:55:10,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:10,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822419444] [2025-02-06 18:55:10,364 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:55:10,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:10,371 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:55:10,373 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:55:10,373 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:55:10,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:10,398 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:55:10,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:10,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822419444] [2025-02-06 18:55:10,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822419444] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:55:10,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069994295] [2025-02-06 18:55:10,399 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:55:10,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:10,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:55:10,407 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 18:55:10,408 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 18:55:10,450 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-06 18:55:10,456 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-06 18:55:10,456 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:55:10,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:10,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:55:10,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:55:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:55:10,482 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:55:10,506 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:55:10,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069994295] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:55:10,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:55:10,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-02-06 18:55:10,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151834350] [2025-02-06 18:55:10,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:55:10,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:55:10,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:10,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:55:10,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:55:10,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-06 18:55:10,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 337 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 18:55:10,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:10,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-06 18:55:10,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:10,690 INFO L124 PetriNetUnfolderBase]: 1178/2012 cut-off events. [2025-02-06 18:55:10,692 INFO L125 PetriNetUnfolderBase]: For 2929/2929 co-relation queries the response was YES. [2025-02-06 18:55:10,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5926 conditions, 2012 events. 1178/2012 cut-off events. For 2929/2929 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 10064 event pairs, 1027 based on Foata normal form. 1/1753 useless extension candidates. Maximal degree in co-relation 5893. Up to 1994 conditions per place. [2025-02-06 18:55:10,702 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 34 selfloop transitions, 15 changer transitions 0/52 dead transitions. [2025-02-06 18:55:10,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 425 flow [2025-02-06 18:55:10,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:55:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:55:10,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2025-02-06 18:55:10,703 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27380952380952384 [2025-02-06 18:55:10,703 INFO L175 Difference]: Start difference. First operand has 64 places, 53 transitions, 337 flow. Second operand 4 states and 46 transitions. [2025-02-06 18:55:10,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 425 flow [2025-02-06 18:55:10,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 52 transitions, 409 flow, removed 2 selfloop flow, removed 7 redundant places. [2025-02-06 18:55:10,711 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 341 flow [2025-02-06 18:55:10,711 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=341, PETRI_PLACES=58, PETRI_TRANSITIONS=52} [2025-02-06 18:55:10,711 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places. [2025-02-06 18:55:10,712 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 341 flow [2025-02-06 18:55:10,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 18:55:10,712 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:10,713 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:10,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 18:55:10,913 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,SelfDestructingSolverStorable8 [2025-02-06 18:55:10,914 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:10,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:10,914 INFO L85 PathProgramCache]: Analyzing trace with hash 485162330, now seen corresponding path program 1 times [2025-02-06 18:55:10,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:10,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031820182] [2025-02-06 18:55:10,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:10,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:10,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 18:55:10,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 18:55:10,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:10,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:55:10,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:10,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031820182] [2025-02-06 18:55:10,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031820182] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:55:10,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043836252] [2025-02-06 18:55:10,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:10,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:10,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:55:10,989 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 18:55:10,991 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 18:55:11,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 18:55:11,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 18:55:11,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:11,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:11,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:55:11,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:55:11,087 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 18:55:11,088 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:55:11,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043836252] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:55:11,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:55:11,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2025-02-06 18:55:11,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17064398] [2025-02-06 18:55:11,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:55:11,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:55:11,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:11,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:55:11,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:55:11,089 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:11,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 341 flow. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 18:55:11,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:11,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:11,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:11,297 INFO L124 PetriNetUnfolderBase]: 1460/2513 cut-off events. [2025-02-06 18:55:11,297 INFO L125 PetriNetUnfolderBase]: For 4469/4469 co-relation queries the response was YES. [2025-02-06 18:55:11,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7253 conditions, 2513 events. 1460/2513 cut-off events. For 4469/4469 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 12820 event pairs, 221 based on Foata normal form. 105/2282 useless extension candidates. Maximal degree in co-relation 7169. Up to 1244 conditions per place. [2025-02-06 18:55:11,305 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 83 selfloop transitions, 12 changer transitions 3/101 dead transitions. [2025-02-06 18:55:11,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 101 transitions, 729 flow [2025-02-06 18:55:11,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:55:11,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:55:11,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 119 transitions. [2025-02-06 18:55:11,306 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2025-02-06 18:55:11,306 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 341 flow. Second operand 6 states and 119 transitions. [2025-02-06 18:55:11,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 101 transitions, 729 flow [2025-02-06 18:55:11,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 101 transitions, 699 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:55:11,309 INFO L231 Difference]: Finished difference. Result has 63 places, 59 transitions, 457 flow [2025-02-06 18:55:11,310 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=457, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2025-02-06 18:55:11,310 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 23 predicate places. [2025-02-06 18:55:11,310 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 457 flow [2025-02-06 18:55:11,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 18:55:11,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:11,310 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:11,318 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 18:55:11,511 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 18:55:11,511 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:11,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:11,512 INFO L85 PathProgramCache]: Analyzing trace with hash 639316339, now seen corresponding path program 1 times [2025-02-06 18:55:11,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:11,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958485694] [2025-02-06 18:55:11,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:11,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:11,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 18:55:11,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 18:55:11,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:11,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:11,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:55:11,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:11,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958485694] [2025-02-06 18:55:11,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958485694] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:55:11,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:55:11,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:55:11,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365754869] [2025-02-06 18:55:11,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:55:11,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:55:11,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:11,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:55:11,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:55:11,563 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:11,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 457 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 18:55:11,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:11,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:11,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:11,744 INFO L124 PetriNetUnfolderBase]: 1329/2292 cut-off events. [2025-02-06 18:55:11,744 INFO L125 PetriNetUnfolderBase]: For 5986/5986 co-relation queries the response was YES. [2025-02-06 18:55:11,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7048 conditions, 2292 events. 1329/2292 cut-off events. For 5986/5986 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 11588 event pairs, 351 based on Foata normal form. 90/2062 useless extension candidates. Maximal degree in co-relation 6975. Up to 1521 conditions per place. [2025-02-06 18:55:11,750 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 73 selfloop transitions, 5 changer transitions 3/84 dead transitions. [2025-02-06 18:55:11,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 84 transitions, 694 flow [2025-02-06 18:55:11,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:55:11,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:55:11,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2025-02-06 18:55:11,751 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4095238095238095 [2025-02-06 18:55:11,751 INFO L175 Difference]: Start difference. First operand has 63 places, 59 transitions, 457 flow. Second operand 5 states and 86 transitions. [2025-02-06 18:55:11,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 84 transitions, 694 flow [2025-02-06 18:55:11,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 84 transitions, 646 flow, removed 21 selfloop flow, removed 2 redundant places. [2025-02-06 18:55:11,757 INFO L231 Difference]: Finished difference. Result has 64 places, 58 transitions, 413 flow [2025-02-06 18:55:11,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=413, PETRI_PLACES=64, PETRI_TRANSITIONS=58} [2025-02-06 18:55:11,757 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 24 predicate places. [2025-02-06 18:55:11,757 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 58 transitions, 413 flow [2025-02-06 18:55:11,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 18:55:11,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:11,758 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:11,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:55:11,758 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:11,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:11,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1988706238, now seen corresponding path program 2 times [2025-02-06 18:55:11,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:11,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983083210] [2025-02-06 18:55:11,758 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:55:11,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:11,764 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-02-06 18:55:11,769 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 18:55:11,769 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:55:11,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:11,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:55:11,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:11,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983083210] [2025-02-06 18:55:11,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983083210] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:55:11,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939628794] [2025-02-06 18:55:11,829 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:55:11,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:11,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:55:11,831 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 18:55:11,835 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 18:55:11,874 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-02-06 18:55:11,888 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 18:55:11,888 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:55:11,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:11,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 18:55:11,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:55:11,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:55:11,960 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:55:12,002 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:55:12,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939628794] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:55:12,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:55:12,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 11 [2025-02-06 18:55:12,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874353790] [2025-02-06 18:55:12,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:55:12,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 18:55:12,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:12,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 18:55:12,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=82, Unknown=0, NotChecked=0, Total=156 [2025-02-06 18:55:12,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:12,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 58 transitions, 413 flow. Second operand has 13 states, 13 states have (on average 11.384615384615385) internal successors, (148), 13 states have internal predecessors, (148), 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 18:55:12,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:12,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:12,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:12,518 INFO L124 PetriNetUnfolderBase]: 3254/5515 cut-off events. [2025-02-06 18:55:12,518 INFO L125 PetriNetUnfolderBase]: For 15360/15360 co-relation queries the response was YES. [2025-02-06 18:55:12,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16015 conditions, 5515 events. 3254/5515 cut-off events. For 15360/15360 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 29039 event pairs, 772 based on Foata normal form. 353/5068 useless extension candidates. Maximal degree in co-relation 15942. Up to 1310 conditions per place. [2025-02-06 18:55:12,540 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 145 selfloop transitions, 33 changer transitions 24/205 dead transitions. [2025-02-06 18:55:12,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 205 transitions, 1609 flow [2025-02-06 18:55:12,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:55:12,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:55:12,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 219 transitions. [2025-02-06 18:55:12,542 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5214285714285715 [2025-02-06 18:55:12,542 INFO L175 Difference]: Start difference. First operand has 64 places, 58 transitions, 413 flow. Second operand 10 states and 219 transitions. [2025-02-06 18:55:12,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 205 transitions, 1609 flow [2025-02-06 18:55:12,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 205 transitions, 1599 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:55:12,559 INFO L231 Difference]: Finished difference. Result has 76 places, 85 transitions, 845 flow [2025-02-06 18:55:12,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=845, PETRI_PLACES=76, PETRI_TRANSITIONS=85} [2025-02-06 18:55:12,559 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 36 predicate places. [2025-02-06 18:55:12,559 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 85 transitions, 845 flow [2025-02-06 18:55:12,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.384615384615385) internal successors, (148), 13 states have internal predecessors, (148), 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 18:55:12,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:12,560 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:12,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-06 18:55:12,762 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 18:55:12,762 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:12,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:12,763 INFO L85 PathProgramCache]: Analyzing trace with hash 626238891, now seen corresponding path program 1 times [2025-02-06 18:55:12,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:12,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087479792] [2025-02-06 18:55:12,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:12,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:12,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 18:55:12,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 18:55:12,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:12,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:12,870 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:55:12,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:12,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087479792] [2025-02-06 18:55:12,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087479792] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:55:12,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142087735] [2025-02-06 18:55:12,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:12,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:12,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:55:12,873 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 18:55:12,875 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 18:55:12,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 18:55:12,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 18:55:12,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:12,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:12,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 18:55:12,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:55:13,004 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:55:13,004 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:55:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:55:13,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142087735] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:55:13,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:55:13,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 18:55:13,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435107874] [2025-02-06 18:55:13,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:55:13,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 18:55:13,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:13,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 18:55:13,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-06 18:55:13,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:13,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 85 transitions, 845 flow. Second operand has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 13 states have internal predecessors, (139), 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 18:55:13,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:13,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:13,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:14,099 INFO L124 PetriNetUnfolderBase]: 7127/11927 cut-off events. [2025-02-06 18:55:14,099 INFO L125 PetriNetUnfolderBase]: For 67512/67512 co-relation queries the response was YES. [2025-02-06 18:55:14,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39028 conditions, 11927 events. 7127/11927 cut-off events. For 67512/67512 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 72129 event pairs, 1759 based on Foata normal form. 618/10834 useless extension candidates. Maximal degree in co-relation 38949. Up to 2583 conditions per place. [2025-02-06 18:55:14,147 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 182 selfloop transitions, 123 changer transitions 3/311 dead transitions. [2025-02-06 18:55:14,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 311 transitions, 3142 flow [2025-02-06 18:55:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 18:55:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 18:55:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 310 transitions. [2025-02-06 18:55:14,148 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5677655677655677 [2025-02-06 18:55:14,148 INFO L175 Difference]: Start difference. First operand has 76 places, 85 transitions, 845 flow. Second operand 13 states and 310 transitions. [2025-02-06 18:55:14,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 311 transitions, 3142 flow [2025-02-06 18:55:14,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 311 transitions, 3106 flow, removed 16 selfloop flow, removed 2 redundant places. [2025-02-06 18:55:14,196 INFO L231 Difference]: Finished difference. Result has 96 places, 167 transitions, 2360 flow [2025-02-06 18:55:14,196 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2360, PETRI_PLACES=96, PETRI_TRANSITIONS=167} [2025-02-06 18:55:14,196 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 56 predicate places. [2025-02-06 18:55:14,196 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 167 transitions, 2360 flow [2025-02-06 18:55:14,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 13 states have internal predecessors, (139), 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 18:55:14,197 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:14,197 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:14,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 18:55:14,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:14,397 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:14,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:14,398 INFO L85 PathProgramCache]: Analyzing trace with hash -49171601, now seen corresponding path program 1 times [2025-02-06 18:55:14,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:14,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348272986] [2025-02-06 18:55:14,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:14,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:14,404 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 18:55:14,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 18:55:14,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:14,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:14,507 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:55:14,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:14,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348272986] [2025-02-06 18:55:14,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348272986] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:55:14,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:55:14,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:55:14,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682471877] [2025-02-06 18:55:14,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:55:14,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:55:14,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:14,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:55:14,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:55:14,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:14,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 167 transitions, 2360 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:55:14,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:14,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:14,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:15,572 INFO L124 PetriNetUnfolderBase]: 6676/11442 cut-off events. [2025-02-06 18:55:15,572 INFO L125 PetriNetUnfolderBase]: For 66548/66548 co-relation queries the response was YES. [2025-02-06 18:55:15,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38704 conditions, 11442 events. 6676/11442 cut-off events. For 66548/66548 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 74246 event pairs, 5975 based on Foata normal form. 444/10181 useless extension candidates. Maximal degree in co-relation 38615. Up to 11434 conditions per place. [2025-02-06 18:55:15,634 INFO L140 encePairwiseOnDemand]: 40/42 looper letters, 136 selfloop transitions, 1 changer transitions 0/140 dead transitions. [2025-02-06 18:55:15,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 140 transitions, 2173 flow [2025-02-06 18:55:15,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:55:15,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:55:15,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2025-02-06 18:55:15,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2025-02-06 18:55:15,639 INFO L175 Difference]: Start difference. First operand has 96 places, 167 transitions, 2360 flow. Second operand 3 states and 45 transitions. [2025-02-06 18:55:15,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 140 transitions, 2173 flow [2025-02-06 18:55:15,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 140 transitions, 2031 flow, removed 62 selfloop flow, removed 2 redundant places. [2025-02-06 18:55:15,834 INFO L231 Difference]: Finished difference. Result has 93 places, 140 transitions, 1759 flow [2025-02-06 18:55:15,834 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1757, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1759, PETRI_PLACES=93, PETRI_TRANSITIONS=140} [2025-02-06 18:55:15,834 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 53 predicate places. [2025-02-06 18:55:15,834 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 140 transitions, 1759 flow [2025-02-06 18:55:15,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:55:15,834 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:15,834 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:15,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 18:55:15,835 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:15,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:15,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2069637400, now seen corresponding path program 3 times [2025-02-06 18:55:15,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:15,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139621074] [2025-02-06 18:55:15,835 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:55:15,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:15,848 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 34 statements into 6 equivalence classes. [2025-02-06 18:55:15,854 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 34 statements. [2025-02-06 18:55:15,854 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 18:55:15,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:16,094 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 18:55:16,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:16,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139621074] [2025-02-06 18:55:16,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139621074] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:55:16,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919701561] [2025-02-06 18:55:16,095 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:55:16,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:16,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:55:16,097 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:55:16,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 18:55:16,140 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 34 statements into 6 equivalence classes. [2025-02-06 18:55:16,153 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 34 statements. [2025-02-06 18:55:16,153 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 18:55:16,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:16,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:55:16,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:55:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-02-06 18:55:16,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:55:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-02-06 18:55:16,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919701561] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:55:16,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:55:16,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 2, 2] total 8 [2025-02-06 18:55:16,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966012188] [2025-02-06 18:55:16,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:55:16,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:55:16,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:16,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:55:16,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:55:16,283 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-06 18:55:16,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 140 transitions, 1759 flow. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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 18:55:16,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:16,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-06 18:55:16,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:17,308 INFO L124 PetriNetUnfolderBase]: 6288/10828 cut-off events. [2025-02-06 18:55:17,308 INFO L125 PetriNetUnfolderBase]: For 45597/45597 co-relation queries the response was YES. [2025-02-06 18:55:17,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31704 conditions, 10828 events. 6288/10828 cut-off events. For 45597/45597 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 68370 event pairs, 3040 based on Foata normal form. 399/9527 useless extension candidates. Maximal degree in co-relation 31666. Up to 10267 conditions per place. [2025-02-06 18:55:17,363 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 134 selfloop transitions, 5 changer transitions 44/186 dead transitions. [2025-02-06 18:55:17,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 186 transitions, 2182 flow [2025-02-06 18:55:17,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:55:17,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:55:17,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 130 transitions. [2025-02-06 18:55:17,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.30952380952380953 [2025-02-06 18:55:17,364 INFO L175 Difference]: Start difference. First operand has 93 places, 140 transitions, 1759 flow. Second operand 10 states and 130 transitions. [2025-02-06 18:55:17,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 186 transitions, 2182 flow [2025-02-06 18:55:17,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 186 transitions, 1927 flow, removed 84 selfloop flow, removed 6 redundant places. [2025-02-06 18:55:17,473 INFO L231 Difference]: Finished difference. Result has 95 places, 133 transitions, 1430 flow [2025-02-06 18:55:17,473 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1425, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1430, PETRI_PLACES=95, PETRI_TRANSITIONS=133} [2025-02-06 18:55:17,473 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 55 predicate places. [2025-02-06 18:55:17,473 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 133 transitions, 1430 flow [2025-02-06 18:55:17,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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 18:55:17,477 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:17,477 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 18:55:17,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 18:55:17,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-06 18:55:17,678 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:17,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:17,679 INFO L85 PathProgramCache]: Analyzing trace with hash -2122228392, now seen corresponding path program 2 times [2025-02-06 18:55:17,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:17,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704208269] [2025-02-06 18:55:17,679 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:55:17,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:17,698 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 43 statements into 2 equivalence classes. [2025-02-06 18:55:17,705 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 43 statements. [2025-02-06 18:55:17,708 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:55:17,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2025-02-06 18:55:17,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:17,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704208269] [2025-02-06 18:55:17,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704208269] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:55:17,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:55:17,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:55:17,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890435349] [2025-02-06 18:55:17,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:55:17,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:55:17,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:17,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:55:17,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:55:17,774 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:17,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 133 transitions, 1430 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 18:55:17,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:17,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:17,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:18,317 INFO L124 PetriNetUnfolderBase]: 3420/5805 cut-off events. [2025-02-06 18:55:18,317 INFO L125 PetriNetUnfolderBase]: For 15538/15538 co-relation queries the response was YES. [2025-02-06 18:55:18,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17769 conditions, 5805 events. 3420/5805 cut-off events. For 15538/15538 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 31938 event pairs, 1568 based on Foata normal form. 12/5351 useless extension candidates. Maximal degree in co-relation 17733. Up to 4892 conditions per place. [2025-02-06 18:55:18,345 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 129 selfloop transitions, 11 changer transitions 2/145 dead transitions. [2025-02-06 18:55:18,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 145 transitions, 1751 flow [2025-02-06 18:55:18,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:55:18,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:55:18,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2025-02-06 18:55:18,346 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2025-02-06 18:55:18,347 INFO L175 Difference]: Start difference. First operand has 95 places, 133 transitions, 1430 flow. Second operand 3 states and 48 transitions. [2025-02-06 18:55:18,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 145 transitions, 1751 flow [2025-02-06 18:55:18,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 145 transitions, 1697 flow, removed 12 selfloop flow, removed 8 redundant places. [2025-02-06 18:55:18,375 INFO L231 Difference]: Finished difference. Result has 83 places, 132 transitions, 1372 flow [2025-02-06 18:55:18,375 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1350, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1372, PETRI_PLACES=83, PETRI_TRANSITIONS=132} [2025-02-06 18:55:18,375 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 43 predicate places. [2025-02-06 18:55:18,376 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 132 transitions, 1372 flow [2025-02-06 18:55:18,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 18:55:18,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:18,376 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:18,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 18:55:18,376 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:18,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:18,377 INFO L85 PathProgramCache]: Analyzing trace with hash -2131092597, now seen corresponding path program 1 times [2025-02-06 18:55:18,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:18,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263525795] [2025-02-06 18:55:18,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:18,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:18,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-06 18:55:18,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-06 18:55:18,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:18,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:18,609 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:55:18,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:18,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263525795] [2025-02-06 18:55:18,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263525795] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:55:18,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927209668] [2025-02-06 18:55:18,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:55:18,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:18,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:55:18,612 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:55:18,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 18:55:18,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-06 18:55:18,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-06 18:55:18,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:55:18,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:18,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 18:55:18,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:55:18,833 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:55:18,833 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:55:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:55:18,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927209668] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:55:18,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:55:18,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2025-02-06 18:55:18,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559987007] [2025-02-06 18:55:18,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:55:18,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 18:55:18,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:18,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 18:55:18,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2025-02-06 18:55:18,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:18,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 132 transitions, 1372 flow. Second operand has 23 states, 23 states have (on average 10.956521739130435) internal successors, (252), 23 states have internal predecessors, (252), 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 18:55:18,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:18,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:18,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:20,035 INFO L124 PetriNetUnfolderBase]: 6477/10932 cut-off events. [2025-02-06 18:55:20,035 INFO L125 PetriNetUnfolderBase]: For 50957/50957 co-relation queries the response was YES. [2025-02-06 18:55:20,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32601 conditions, 10932 events. 6477/10932 cut-off events. For 50957/50957 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 59645 event pairs, 1145 based on Foata normal form. 218/10282 useless extension candidates. Maximal degree in co-relation 32569. Up to 2155 conditions per place. [2025-02-06 18:55:20,094 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 213 selfloop transitions, 217 changer transitions 0/433 dead transitions. [2025-02-06 18:55:20,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 433 transitions, 3942 flow [2025-02-06 18:55:20,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 18:55:20,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-06 18:55:20,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 411 transitions. [2025-02-06 18:55:20,096 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4448051948051948 [2025-02-06 18:55:20,096 INFO L175 Difference]: Start difference. First operand has 83 places, 132 transitions, 1372 flow. Second operand 22 states and 411 transitions. [2025-02-06 18:55:20,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 433 transitions, 3942 flow [2025-02-06 18:55:20,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 433 transitions, 3900 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:55:20,268 INFO L231 Difference]: Finished difference. Result has 122 places, 253 transitions, 3562 flow [2025-02-06 18:55:20,269 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1350, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3562, PETRI_PLACES=122, PETRI_TRANSITIONS=253} [2025-02-06 18:55:20,269 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 82 predicate places. [2025-02-06 18:55:20,269 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 253 transitions, 3562 flow [2025-02-06 18:55:20,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.956521739130435) internal successors, (252), 23 states have internal predecessors, (252), 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 18:55:20,269 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:55:20,269 INFO L206 CegarLoopForPetriNet]: trace histogram [21, 21, 20, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:20,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 18:55:20,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:20,476 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-06 18:55:20,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:55:20,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2026673217, now seen corresponding path program 2 times [2025-02-06 18:55:20,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:55:20,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717688344] [2025-02-06 18:55:20,477 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:55:20,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:55:20,498 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-02-06 18:55:20,524 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 18:55:20,524 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:55:20,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:20,622 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2025-02-06 18:55:20,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:55:20,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717688344] [2025-02-06 18:55:20,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717688344] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:55:20,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708020738] [2025-02-06 18:55:20,623 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:55:20,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:55:20,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:55:20,625 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:55:20,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 18:55:20,695 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-02-06 18:55:20,735 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 18:55:20,735 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:55:20,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:55:20,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:55:20,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:55:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2025-02-06 18:55:20,819 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:55:20,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708020738] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:55:20,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:55:20,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2025-02-06 18:55:20,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546577271] [2025-02-06 18:55:20,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:55:20,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:55:20,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:55:20,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:55:20,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:55:20,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-06 18:55:20,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 253 transitions, 3562 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 18:55:20,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:55:20,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-06 18:55:20,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:55:21,808 INFO L124 PetriNetUnfolderBase]: 6457/10892 cut-off events. [2025-02-06 18:55:21,809 INFO L125 PetriNetUnfolderBase]: For 46679/46679 co-relation queries the response was YES. [2025-02-06 18:55:21,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36611 conditions, 10892 events. 6457/10892 cut-off events. For 46679/46679 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 61879 event pairs, 2918 based on Foata normal form. 10/10038 useless extension candidates. Maximal degree in co-relation 36559. Up to 9168 conditions per place. [2025-02-06 18:55:21,845 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 0 selfloop transitions, 0 changer transitions 273/273 dead transitions. [2025-02-06 18:55:21,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 273 transitions, 4232 flow [2025-02-06 18:55:21,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:55:21,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:55:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2025-02-06 18:55:21,847 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32142857142857145 [2025-02-06 18:55:21,847 INFO L175 Difference]: Start difference. First operand has 122 places, 253 transitions, 3562 flow. Second operand 4 states and 54 transitions. [2025-02-06 18:55:21,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 273 transitions, 4232 flow [2025-02-06 18:55:21,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 273 transitions, 2914 flow, removed 266 selfloop flow, removed 32 redundant places. [2025-02-06 18:55:21,924 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2025-02-06 18:55:21,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2266, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2025-02-06 18:55:21,925 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 51 predicate places. [2025-02-06 18:55:21,925 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2025-02-06 18:55:21,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 18:55:21,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2025-02-06 18:55:21,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2025-02-06 18:55:21,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2025-02-06 18:55:21,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2025-02-06 18:55:21,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2025-02-06 18:55:21,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2025-02-06 18:55:21,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2025-02-06 18:55:21,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2025-02-06 18:55:21,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2025-02-06 18:55:21,927 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2025-02-06 18:55:21,928 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2025-02-06 18:55:21,929 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2025-02-06 18:55:21,929 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2025-02-06 18:55:21,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-06 18:55:22,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-06 18:55:22,132 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:55:22,138 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:55:22,138 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:55:22,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:55:22 BasicIcfg [2025-02-06 18:55:22,147 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:55:22,151 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:55:22,151 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:55:22,151 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:55:22,151 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:55:07" (3/4) ... [2025-02-06 18:55:22,153 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:55:22,154 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-06 18:55:22,154 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-06 18:55:22,157 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2025-02-06 18:55:22,157 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2025-02-06 18:55:22,157 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-06 18:55:22,157 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-06 18:55:22,203 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:55:22,203 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:55:22,203 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:55:22,204 INFO L158 Benchmark]: Toolchain (without parser) took 15836.57ms. Allocated memory was 201.3MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 158.2MB in the beginning and 707.1MB in the end (delta: -548.9MB). Peak memory consumption was 774.4MB. Max. memory is 16.1GB. [2025-02-06 18:55:22,204 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:55:22,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.71ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 146.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:55:22,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.59ms. Allocated memory is still 201.3MB. Free memory was 146.3MB in the beginning and 144.9MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:55:22,205 INFO L158 Benchmark]: Boogie Preprocessor took 38.61ms. Allocated memory is still 201.3MB. Free memory was 144.9MB in the beginning and 143.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:55:22,205 INFO L158 Benchmark]: IcfgBuilder took 518.85ms. Allocated memory is still 201.3MB. Free memory was 143.0MB in the beginning and 97.7MB in the end (delta: 45.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-06 18:55:22,205 INFO L158 Benchmark]: TraceAbstraction took 14939.29ms. Allocated memory was 201.3MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 97.0MB in the beginning and 711.5MB in the end (delta: -614.5MB). Peak memory consumption was 933.8MB. Max. memory is 16.1GB. [2025-02-06 18:55:22,205 INFO L158 Benchmark]: Witness Printer took 52.86ms. Allocated memory is still 1.5GB. Free memory was 711.5MB in the beginning and 707.1MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:55:22,206 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.71ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 146.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.59ms. Allocated memory is still 201.3MB. Free memory was 146.3MB in the beginning and 144.9MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.61ms. Allocated memory is still 201.3MB. Free memory was 144.9MB in the beginning and 143.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 518.85ms. Allocated memory is still 201.3MB. Free memory was 143.0MB in the beginning and 97.7MB in the end (delta: 45.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 14939.29ms. Allocated memory was 201.3MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 97.0MB in the beginning and 711.5MB in the end (delta: -614.5MB). Peak memory consumption was 933.8MB. Max. memory is 16.1GB. * Witness Printer took 52.86ms. Allocated memory is still 1.5GB. Free memory was 711.5MB in the beginning and 707.1MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 64 locations, 28 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.8s, OverallIterations: 18, TraceHistogramMax: 21, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1170 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1156 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1874 IncrementalHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 2 mSDtfsCounter, 1874 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 485 GetRequests, 369 SyntacticMatches, 2 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3562occurred in iteration=17, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 661 NumberOfCodeBlocks, 571 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 786 ConstructedInterpolants, 0 QuantifiedInterpolants, 3063 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1539 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 35 InterpolantComputations, 11 PerfectInterpolantSequences, 954/1308 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 18:55:22,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE