./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:47:49,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:47:49,169 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:47:49,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:47:49,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:47:49,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:47:49,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:47:49,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:47:49,201 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:47:49,201 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:47:49,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:47:49,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:47:49,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:47:49,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:47:49,202 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:47:49,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:47:49,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:47:49,202 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:47:49,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:47:49,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:47:49,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:47:49,203 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:47:49,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:47:49,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:47:49,203 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:47:49,203 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:47:49,203 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:47:49,203 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:47:49,203 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:47:49,203 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:47:49,203 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:47:49,204 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:47:49,204 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:47:49,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:47:49,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:47:49,204 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:47:49,204 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:47:49,204 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:47:49,204 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:47:49,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:47:49,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:47:49,205 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:47:49,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:47:49,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:47:49,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:47:49,205 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/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 -> 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 [2025-03-17 19:47:49,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:47:49,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:47:49,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:47:49,428 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:47:49,428 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:47:49,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2025-03-17 19:47:50,554 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39ecf23f/53bd2dabab094fc5812514b3a047e797/FLAG069b8af4f [2025-03-17 19:47:50,887 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:47:50,888 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2025-03-17 19:47:50,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39ecf23f/53bd2dabab094fc5812514b3a047e797/FLAG069b8af4f [2025-03-17 19:47:51,128 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39ecf23f/53bd2dabab094fc5812514b3a047e797 [2025-03-17 19:47:51,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:47:51,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:47:51,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:47:51,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:47:51,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:47:51,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1296832a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51, skipping insertion in model container [2025-03-17 19:47:51,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:47:51,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:47:51,503 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:47:51,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:47:51,581 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:47:51,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51 WrapperNode [2025-03-17 19:47:51,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:47:51,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:47:51,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:47:51,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:47:51,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,615 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 262 [2025-03-17 19:47:51,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:47:51,615 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:47:51,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:47:51,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:47:51,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,636 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2025-03-17 19:47:51,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,644 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:47:51,655 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:47:51,655 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:47:51,655 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:47:51,655 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (1/1) ... [2025-03-17 19:47:51,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:47:51,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:51,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 19:47:51,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-17 19:47:51,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-17 19:47:51,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 19:47:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:47:51,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:47:51,695 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:47:51,829 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:47:51,832 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:47:52,119 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:47:52,119 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:47:52,636 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:47:52,637 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:47:52,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:47:52 BoogieIcfgContainer [2025-03-17 19:47:52,637 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:47:52,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:47:52,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:47:52,642 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:47:52,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:47:51" (1/3) ... [2025-03-17 19:47:52,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@feaac05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:47:52, skipping insertion in model container [2025-03-17 19:47:52,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:51" (2/3) ... [2025-03-17 19:47:52,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@feaac05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:47:52, skipping insertion in model container [2025-03-17 19:47:52,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:47:52" (3/3) ... [2025-03-17 19:47:52,645 INFO L128 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_bad.i [2025-03-17 19:47:52,655 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:47:52,656 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG arithmetic_prog_bad.i that has 3 procedures, 45 locations, 1 initial locations, 4 loop locations, and 8 error locations. [2025-03-17 19:47:52,656 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:47:52,699 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 19:47:52,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 110 flow [2025-03-17 19:47:52,787 INFO L124 PetriNetUnfolderBase]: 4/46 cut-off events. [2025-03-17 19:47:52,789 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 19:47:52,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 46 events. 4/46 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 110 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2025-03-17 19:47:52,794 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 48 transitions, 110 flow [2025-03-17 19:47:52,797 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 97 flow [2025-03-17 19:47:52,806 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:47:52,814 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;@f31d6d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:47:52,814 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-03-17 19:47:52,838 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:47:52,839 INFO L124 PetriNetUnfolderBase]: 1/20 cut-off events. [2025-03-17 19:47:52,839 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 19:47:52,839 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:52,839 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:52,840 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:52,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:52,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1162393891, now seen corresponding path program 1 times [2025-03-17 19:47:52,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:52,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375436797] [2025-03-17 19:47:52,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:52,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:53,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:47:53,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:47:53,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:53,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:53,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:53,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:53,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375436797] [2025-03-17 19:47:53,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375436797] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:53,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:53,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:47:53,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945164157] [2025-03-17 19:47:53,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:53,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:47:53,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:53,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:47:53,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:47:53,599 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 48 [2025-03-17 19:47:53,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:47:53,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:53,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 48 [2025-03-17 19:47:53,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:53,861 INFO L124 PetriNetUnfolderBase]: 682/1355 cut-off events. [2025-03-17 19:47:53,861 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2025-03-17 19:47:53,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2514 conditions, 1355 events. 682/1355 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7097 event pairs, 189 based on Foata normal form. 16/1194 useless extension candidates. Maximal degree in co-relation 2407. Up to 746 conditions per place. [2025-03-17 19:47:53,871 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 54 selfloop transitions, 5 changer transitions 2/75 dead transitions. [2025-03-17 19:47:53,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 75 transitions, 290 flow [2025-03-17 19:47:53,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:47:53,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:47:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2025-03-17 19:47:53,883 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6770833333333334 [2025-03-17 19:47:53,885 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 97 flow. Second operand 4 states and 130 transitions. [2025-03-17 19:47:53,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 75 transitions, 290 flow [2025-03-17 19:47:53,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 75 transitions, 281 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:47:53,894 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 136 flow [2025-03-17 19:47:53,896 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2025-03-17 19:47:53,898 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2025-03-17 19:47:53,900 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 136 flow [2025-03-17 19:47:53,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:47:53,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:53,900 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:53,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:47:53,901 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:53,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:53,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1821504475, now seen corresponding path program 1 times [2025-03-17 19:47:53,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:53,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465299359] [2025-03-17 19:47:53,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:53,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:54,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:47:54,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:47:54,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:54,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:54,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:54,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:54,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465299359] [2025-03-17 19:47:54,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465299359] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:54,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:54,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:47:54,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028161297] [2025-03-17 19:47:54,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:54,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:47:54,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:54,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:47:54,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:47:54,209 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-03-17 19:47:54,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2025-03-17 19:47:54,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:54,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-03-17 19:47:54,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:54,401 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([717] L894-->L897-3: Formula: (and (not (= v_~num~0_23 0)) (= (+ v_~total~0_18 v_thread2Thread1of1ForFork1_~j~0_7) v_~total~0_17) (= v_~num~0_23 |v_thread2Thread1of1ForFork1_#t~post13_1|)) InVars {~num~0=v_~num~0_23, thread2Thread1of1ForFork1_~j~0=v_thread2Thread1of1ForFork1_~j~0_7, ~total~0=v_~total~0_18} OutVars{~num~0=v_~num~0_23, thread2Thread1of1ForFork1_#t~post13=|v_thread2Thread1of1ForFork1_#t~post13_1|, thread2Thread1of1ForFork1_~j~0=v_thread2Thread1of1ForFork1_~j~0_7, ~total~0=v_~total~0_17} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~post13, ~total~0][55], [63#true, 35#L915true, 21#L881-5true, 48#L897-3true, Black: 59#(and (= |thread1Thread1of1ForFork0_#t~post7| 0) (= ~num~0 0)), 54#true, Black: 56#(= ~num~0 0), 52#true]) [2025-03-17 19:47:54,401 INFO L294 olderBase$Statistics]: this new event has 31 ancestors and is cut-off event [2025-03-17 19:47:54,401 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2025-03-17 19:47:54,401 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2025-03-17 19:47:54,401 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2025-03-17 19:47:54,413 INFO L124 PetriNetUnfolderBase]: 769/1468 cut-off events. [2025-03-17 19:47:54,413 INFO L125 PetriNetUnfolderBase]: For 388/393 co-relation queries the response was YES. [2025-03-17 19:47:54,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3154 conditions, 1468 events. 769/1468 cut-off events. For 388/393 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7798 event pairs, 327 based on Foata normal form. 40/1410 useless extension candidates. Maximal degree in co-relation 2521. Up to 939 conditions per place. [2025-03-17 19:47:54,421 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 60 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2025-03-17 19:47:54,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 80 transitions, 346 flow [2025-03-17 19:47:54,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:47:54,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:47:54,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2025-03-17 19:47:54,424 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.703125 [2025-03-17 19:47:54,424 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 136 flow. Second operand 4 states and 135 transitions. [2025-03-17 19:47:54,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 80 transitions, 346 flow [2025-03-17 19:47:54,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 80 transitions, 346 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:47:54,426 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 160 flow [2025-03-17 19:47:54,426 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2025-03-17 19:47:54,428 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2025-03-17 19:47:54,428 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 160 flow [2025-03-17 19:47:54,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2025-03-17 19:47:54,429 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:54,429 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:54,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:47:54,429 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:54,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:54,429 INFO L85 PathProgramCache]: Analyzing trace with hash -2074736820, now seen corresponding path program 1 times [2025-03-17 19:47:54,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:54,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234684785] [2025-03-17 19:47:54,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:54,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:54,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:47:54,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:47:54,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:54,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:54,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:54,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:54,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234684785] [2025-03-17 19:47:54,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234684785] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:54,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:54,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:47:54,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038080603] [2025-03-17 19:47:54,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:54,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:47:54,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:54,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:47:54,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:47:54,692 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2025-03-17 19:47:54,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2025-03-17 19:47:54,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:54,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2025-03-17 19:47:54,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:54,812 INFO L124 PetriNetUnfolderBase]: 382/958 cut-off events. [2025-03-17 19:47:54,812 INFO L125 PetriNetUnfolderBase]: For 337/347 co-relation queries the response was YES. [2025-03-17 19:47:54,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2055 conditions, 958 events. 382/958 cut-off events. For 337/347 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5212 event pairs, 143 based on Foata normal form. 46/970 useless extension candidates. Maximal degree in co-relation 1455. Up to 333 conditions per place. [2025-03-17 19:47:54,817 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 36 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2025-03-17 19:47:54,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 63 transitions, 289 flow [2025-03-17 19:47:54,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:47:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:47:54,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2025-03-17 19:47:54,818 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2025-03-17 19:47:54,818 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 160 flow. Second operand 3 states and 102 transitions. [2025-03-17 19:47:54,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 63 transitions, 289 flow [2025-03-17 19:47:54,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 63 transitions, 283 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-17 19:47:54,821 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 166 flow [2025-03-17 19:47:54,821 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2025-03-17 19:47:54,821 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 9 predicate places. [2025-03-17 19:47:54,822 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 166 flow [2025-03-17 19:47:54,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2025-03-17 19:47:54,822 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:54,822 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:54,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:47:54,822 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:54,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:54,823 INFO L85 PathProgramCache]: Analyzing trace with hash -77028075, now seen corresponding path program 1 times [2025-03-17 19:47:54,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:54,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424838288] [2025-03-17 19:47:54,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:54,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:54,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-17 19:47:55,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-17 19:47:55,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:55,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:55,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:55,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424838288] [2025-03-17 19:47:55,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424838288] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:55,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:55,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:47:55,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908786684] [2025-03-17 19:47:55,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:55,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:47:55,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:55,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:47:55,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:47:55,141 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-03-17 19:47:55,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2025-03-17 19:47:55,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:55,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-03-17 19:47:55,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:55,426 INFO L124 PetriNetUnfolderBase]: 557/1204 cut-off events. [2025-03-17 19:47:55,427 INFO L125 PetriNetUnfolderBase]: For 551/569 co-relation queries the response was YES. [2025-03-17 19:47:55,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2878 conditions, 1204 events. 557/1204 cut-off events. For 551/569 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 5823 event pairs, 116 based on Foata normal form. 33/1180 useless extension candidates. Maximal degree in co-relation 2397. Up to 389 conditions per place. [2025-03-17 19:47:55,435 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 76 selfloop transitions, 8 changer transitions 5/101 dead transitions. [2025-03-17 19:47:55,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 101 transitions, 524 flow [2025-03-17 19:47:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 19:47:55,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 19:47:55,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2025-03-17 19:47:55,438 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2025-03-17 19:47:55,438 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 166 flow. Second operand 7 states and 180 transitions. [2025-03-17 19:47:55,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 101 transitions, 524 flow [2025-03-17 19:47:55,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 101 transitions, 508 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:47:55,444 INFO L231 Difference]: Finished difference. Result has 64 places, 53 transitions, 208 flow [2025-03-17 19:47:55,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=208, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2025-03-17 19:47:55,445 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2025-03-17 19:47:55,445 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 208 flow [2025-03-17 19:47:55,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2025-03-17 19:47:55,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:55,445 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:55,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 19:47:55,446 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:55,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:55,446 INFO L85 PathProgramCache]: Analyzing trace with hash 776656680, now seen corresponding path program 1 times [2025-03-17 19:47:55,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:55,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729379966] [2025-03-17 19:47:55,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:55,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:55,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 19:47:55,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 19:47:55,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:55,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:55,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:55,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:55,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729379966] [2025-03-17 19:47:55,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729379966] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:55,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:55,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:47:55,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893121853] [2025-03-17 19:47:55,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:55,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:47:55,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:55,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:47:55,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:47:55,716 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-03-17 19:47:55,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2025-03-17 19:47:55,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:55,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-03-17 19:47:55,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:55,968 INFO L124 PetriNetUnfolderBase]: 719/1581 cut-off events. [2025-03-17 19:47:55,968 INFO L125 PetriNetUnfolderBase]: For 1255/1291 co-relation queries the response was YES. [2025-03-17 19:47:55,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3879 conditions, 1581 events. 719/1581 cut-off events. For 1255/1291 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7902 event pairs, 182 based on Foata normal form. 30/1576 useless extension candidates. Maximal degree in co-relation 3412. Up to 591 conditions per place. [2025-03-17 19:47:55,978 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 80 selfloop transitions, 12 changer transitions 4/108 dead transitions. [2025-03-17 19:47:55,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 108 transitions, 603 flow [2025-03-17 19:47:55,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 19:47:55,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 19:47:55,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 182 transitions. [2025-03-17 19:47:55,980 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2025-03-17 19:47:55,981 INFO L175 Difference]: Start difference. First operand has 64 places, 53 transitions, 208 flow. Second operand 7 states and 182 transitions. [2025-03-17 19:47:55,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 108 transitions, 603 flow [2025-03-17 19:47:55,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 108 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:47:55,985 INFO L231 Difference]: Finished difference. Result has 71 places, 60 transitions, 302 flow [2025-03-17 19:47:55,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=302, PETRI_PLACES=71, PETRI_TRANSITIONS=60} [2025-03-17 19:47:55,985 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 24 predicate places. [2025-03-17 19:47:55,985 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 60 transitions, 302 flow [2025-03-17 19:47:55,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2025-03-17 19:47:55,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:55,985 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:55,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:47:55,986 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:55,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:55,986 INFO L85 PathProgramCache]: Analyzing trace with hash 391079085, now seen corresponding path program 1 times [2025-03-17 19:47:55,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:55,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044056389] [2025-03-17 19:47:55,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:55,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:56,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 19:47:56,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 19:47:56,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:56,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:56,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:56,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:56,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044056389] [2025-03-17 19:47:56,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044056389] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:56,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:56,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:47:56,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058471179] [2025-03-17 19:47:56,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:56,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:47:56,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:56,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:47:56,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:47:56,222 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-03-17 19:47:56,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 60 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:47:56,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:56,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-03-17 19:47:56,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:56,429 INFO L124 PetriNetUnfolderBase]: 859/1917 cut-off events. [2025-03-17 19:47:56,429 INFO L125 PetriNetUnfolderBase]: For 2158/2222 co-relation queries the response was YES. [2025-03-17 19:47:56,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4819 conditions, 1917 events. 859/1917 cut-off events. For 2158/2222 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10613 event pairs, 463 based on Foata normal form. 68/1926 useless extension candidates. Maximal degree in co-relation 4351. Up to 1100 conditions per place. [2025-03-17 19:47:56,440 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 75 selfloop transitions, 3 changer transitions 0/99 dead transitions. [2025-03-17 19:47:56,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 99 transitions, 649 flow [2025-03-17 19:47:56,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:47:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:47:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2025-03-17 19:47:56,442 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6979166666666666 [2025-03-17 19:47:56,442 INFO L175 Difference]: Start difference. First operand has 71 places, 60 transitions, 302 flow. Second operand 4 states and 134 transitions. [2025-03-17 19:47:56,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 99 transitions, 649 flow [2025-03-17 19:47:56,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 99 transitions, 629 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-03-17 19:47:56,448 INFO L231 Difference]: Finished difference. Result has 73 places, 62 transitions, 314 flow [2025-03-17 19:47:56,449 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=73, PETRI_TRANSITIONS=62} [2025-03-17 19:47:56,451 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 26 predicate places. [2025-03-17 19:47:56,451 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 62 transitions, 314 flow [2025-03-17 19:47:56,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:47:56,451 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:56,451 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:56,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:47:56,452 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:56,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:56,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1930360765, now seen corresponding path program 1 times [2025-03-17 19:47:56,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:56,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132486477] [2025-03-17 19:47:56,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:56,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:56,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 19:47:56,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 19:47:56,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:56,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:56,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:56,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:56,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132486477] [2025-03-17 19:47:56,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132486477] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:56,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:56,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 19:47:56,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404470590] [2025-03-17 19:47:56,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:56,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:47:56,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:56,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:47:56,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:47:56,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-03-17 19:47:56,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 62 transitions, 314 flow. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 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) [2025-03-17 19:47:56,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:56,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-03-17 19:47:56,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:57,009 INFO L124 PetriNetUnfolderBase]: 885/1915 cut-off events. [2025-03-17 19:47:57,009 INFO L125 PetriNetUnfolderBase]: For 2810/2928 co-relation queries the response was YES. [2025-03-17 19:47:57,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5332 conditions, 1915 events. 885/1915 cut-off events. For 2810/2928 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10130 event pairs, 89 based on Foata normal form. 71/1980 useless extension candidates. Maximal degree in co-relation 4876. Up to 632 conditions per place. [2025-03-17 19:47:57,020 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 73 selfloop transitions, 18 changer transitions 2/105 dead transitions. [2025-03-17 19:47:57,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 105 transitions, 667 flow [2025-03-17 19:47:57,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 19:47:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 19:47:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 171 transitions. [2025-03-17 19:47:57,022 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5089285714285714 [2025-03-17 19:47:57,022 INFO L175 Difference]: Start difference. First operand has 73 places, 62 transitions, 314 flow. Second operand 7 states and 171 transitions. [2025-03-17 19:47:57,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 105 transitions, 667 flow [2025-03-17 19:47:57,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 105 transitions, 659 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:47:57,029 INFO L231 Difference]: Finished difference. Result has 74 places, 60 transitions, 354 flow [2025-03-17 19:47:57,029 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=354, PETRI_PLACES=74, PETRI_TRANSITIONS=60} [2025-03-17 19:47:57,029 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-03-17 19:47:57,029 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 60 transitions, 354 flow [2025-03-17 19:47:57,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 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) [2025-03-17 19:47:57,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:57,030 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:57,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 19:47:57,031 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:57,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:57,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1382006899, now seen corresponding path program 1 times [2025-03-17 19:47:57,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:57,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116370922] [2025-03-17 19:47:57,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:57,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:57,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 19:47:57,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 19:47:57,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:57,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:57,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:57,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:57,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116370922] [2025-03-17 19:47:57,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116370922] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:57,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:57,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 19:47:57,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325837143] [2025-03-17 19:47:57,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:57,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:47:57,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:57,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:47:57,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:47:57,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-03-17 19:47:57,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 60 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2025-03-17 19:47:57,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:57,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-03-17 19:47:57,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:57,567 INFO L124 PetriNetUnfolderBase]: 866/1910 cut-off events. [2025-03-17 19:47:57,567 INFO L125 PetriNetUnfolderBase]: For 3657/3741 co-relation queries the response was YES. [2025-03-17 19:47:57,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5447 conditions, 1910 events. 866/1910 cut-off events. For 3657/3741 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10368 event pairs, 63 based on Foata normal form. 57/1913 useless extension candidates. Maximal degree in co-relation 5267. Up to 968 conditions per place. [2025-03-17 19:47:57,578 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 98 selfloop transitions, 5 changer transitions 0/121 dead transitions. [2025-03-17 19:47:57,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 121 transitions, 911 flow [2025-03-17 19:47:57,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:47:57,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:47:57,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2025-03-17 19:47:57,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6423611111111112 [2025-03-17 19:47:57,580 INFO L175 Difference]: Start difference. First operand has 74 places, 60 transitions, 354 flow. Second operand 6 states and 185 transitions. [2025-03-17 19:47:57,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 121 transitions, 911 flow [2025-03-17 19:47:57,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 121 transitions, 840 flow, removed 17 selfloop flow, removed 4 redundant places. [2025-03-17 19:47:57,588 INFO L231 Difference]: Finished difference. Result has 74 places, 59 transitions, 323 flow [2025-03-17 19:47:57,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=323, PETRI_PLACES=74, PETRI_TRANSITIONS=59} [2025-03-17 19:47:57,590 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-03-17 19:47:57,590 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 59 transitions, 323 flow [2025-03-17 19:47:57,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2025-03-17 19:47:57,590 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:57,590 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:57,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 19:47:57,591 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:57,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:57,592 INFO L85 PathProgramCache]: Analyzing trace with hash -994608095, now seen corresponding path program 1 times [2025-03-17 19:47:57,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:57,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951010842] [2025-03-17 19:47:57,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:57,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:57,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 19:47:57,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 19:47:57,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:57,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:57,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:57,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951010842] [2025-03-17 19:47:57,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951010842] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:57,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245099688] [2025-03-17 19:47:57,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:57,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:57,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:57,786 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:47:57,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 19:47:58,066 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 19:47:58,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 19:47:58,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:58,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:58,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:47:58,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:58,168 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:58,168 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:47:58,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245099688] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:58,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:47:58,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-17 19:47:58,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002696349] [2025-03-17 19:47:58,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:58,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:47:58,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:58,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:47:58,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:47:58,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-03-17 19:47:58,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 59 transitions, 323 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2025-03-17 19:47:58,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:58,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-03-17 19:47:58,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:58,439 INFO L124 PetriNetUnfolderBase]: 886/1938 cut-off events. [2025-03-17 19:47:58,440 INFO L125 PetriNetUnfolderBase]: For 2995/3039 co-relation queries the response was YES. [2025-03-17 19:47:58,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5439 conditions, 1938 events. 886/1938 cut-off events. For 2995/3039 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10467 event pairs, 66 based on Foata normal form. 57/1935 useless extension candidates. Maximal degree in co-relation 4963. Up to 792 conditions per place. [2025-03-17 19:47:58,450 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 96 selfloop transitions, 5 changer transitions 0/118 dead transitions. [2025-03-17 19:47:58,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 118 transitions, 815 flow [2025-03-17 19:47:58,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:47:58,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:47:58,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 189 transitions. [2025-03-17 19:47:58,452 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65625 [2025-03-17 19:47:58,452 INFO L175 Difference]: Start difference. First operand has 74 places, 59 transitions, 323 flow. Second operand 6 states and 189 transitions. [2025-03-17 19:47:58,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 118 transitions, 815 flow [2025-03-17 19:47:58,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 118 transitions, 796 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:47:58,457 INFO L231 Difference]: Finished difference. Result has 75 places, 58 transitions, 324 flow [2025-03-17 19:47:58,457 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=70, 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=6, PETRI_FLOW=324, PETRI_PLACES=75, PETRI_TRANSITIONS=58} [2025-03-17 19:47:58,458 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2025-03-17 19:47:58,459 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 58 transitions, 324 flow [2025-03-17 19:47:58,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2025-03-17 19:47:58,459 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:58,459 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:58,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 19:47:58,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:58,663 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:58,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1974732897, now seen corresponding path program 1 times [2025-03-17 19:47:58,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:58,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784092725] [2025-03-17 19:47:58,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:58,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:58,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 19:47:58,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 19:47:58,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:58,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:58,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:58,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784092725] [2025-03-17 19:47:58,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784092725] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:58,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:58,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:47:58,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095254452] [2025-03-17 19:47:58,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:58,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:47:58,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:58,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:47:58,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:47:58,927 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 48 [2025-03-17 19:47:58,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 58 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2025-03-17 19:47:58,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:58,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 48 [2025-03-17 19:47:58,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:59,103 INFO L124 PetriNetUnfolderBase]: 930/1981 cut-off events. [2025-03-17 19:47:59,103 INFO L125 PetriNetUnfolderBase]: For 3557/3584 co-relation queries the response was YES. [2025-03-17 19:47:59,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5742 conditions, 1981 events. 930/1981 cut-off events. For 3557/3584 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10575 event pairs, 235 based on Foata normal form. 57/2021 useless extension candidates. Maximal degree in co-relation 3433. Up to 882 conditions per place. [2025-03-17 19:47:59,112 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 76 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2025-03-17 19:47:59,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 98 transitions, 730 flow [2025-03-17 19:47:59,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:47:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:47:59,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2025-03-17 19:47:59,113 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.640625 [2025-03-17 19:47:59,113 INFO L175 Difference]: Start difference. First operand has 75 places, 58 transitions, 324 flow. Second operand 4 states and 123 transitions. [2025-03-17 19:47:59,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 98 transitions, 730 flow [2025-03-17 19:47:59,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 98 transitions, 711 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-17 19:47:59,116 INFO L231 Difference]: Finished difference. Result has 74 places, 58 transitions, 331 flow [2025-03-17 19:47:59,117 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=331, PETRI_PLACES=74, PETRI_TRANSITIONS=58} [2025-03-17 19:47:59,117 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-03-17 19:47:59,117 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 58 transitions, 331 flow [2025-03-17 19:47:59,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2025-03-17 19:47:59,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:59,117 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:59,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 19:47:59,117 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:59,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:59,118 INFO L85 PathProgramCache]: Analyzing trace with hash -768079176, now seen corresponding path program 1 times [2025-03-17 19:47:59,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:59,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218846521] [2025-03-17 19:47:59,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:59,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:59,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 19:47:59,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 19:47:59,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:59,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:47:59,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:59,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218846521] [2025-03-17 19:47:59,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218846521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:59,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:59,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:47:59,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864312996] [2025-03-17 19:47:59,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:59,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:47:59,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:59,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:47:59,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:47:59,312 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 48 [2025-03-17 19:47:59,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 58 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2025-03-17 19:47:59,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:59,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 48 [2025-03-17 19:47:59,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:59,496 INFO L124 PetriNetUnfolderBase]: 913/1939 cut-off events. [2025-03-17 19:47:59,496 INFO L125 PetriNetUnfolderBase]: For 3635/3637 co-relation queries the response was YES. [2025-03-17 19:47:59,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5739 conditions, 1939 events. 913/1939 cut-off events. For 3635/3637 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 10076 event pairs, 180 based on Foata normal form. 57/1989 useless extension candidates. Maximal degree in co-relation 5197. Up to 917 conditions per place. [2025-03-17 19:47:59,509 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 67 selfloop transitions, 6 changer transitions 0/89 dead transitions. [2025-03-17 19:47:59,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 638 flow [2025-03-17 19:47:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:47:59,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:47:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2025-03-17 19:47:59,511 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2025-03-17 19:47:59,511 INFO L175 Difference]: Start difference. First operand has 74 places, 58 transitions, 331 flow. Second operand 4 states and 120 transitions. [2025-03-17 19:47:59,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 638 flow [2025-03-17 19:47:59,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 89 transitions, 613 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-03-17 19:47:59,517 INFO L231 Difference]: Finished difference. Result has 74 places, 58 transitions, 335 flow [2025-03-17 19:47:59,517 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=335, PETRI_PLACES=74, PETRI_TRANSITIONS=58} [2025-03-17 19:47:59,518 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-03-17 19:47:59,518 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 58 transitions, 335 flow [2025-03-17 19:47:59,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2025-03-17 19:47:59,519 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:59,519 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:59,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 19:47:59,519 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 19:47:59,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:59,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1359180824, now seen corresponding path program 1 times [2025-03-17 19:47:59,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:59,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054546156] [2025-03-17 19:47:59,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:59,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:59,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 19:47:59,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 19:47:59,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:59,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:47:59,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:59,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054546156] [2025-03-17 19:47:59,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054546156] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:59,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:59,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:47:59,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189277080] [2025-03-17 19:47:59,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:59,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:47:59,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:59,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:47:59,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:47:59,732 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2025-03-17 19:47:59,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 58 transitions, 335 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2025-03-17 19:47:59,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:59,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2025-03-17 19:47:59,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:59,907 INFO L124 PetriNetUnfolderBase]: 833/1810 cut-off events. [2025-03-17 19:47:59,908 INFO L125 PetriNetUnfolderBase]: For 3774/3780 co-relation queries the response was YES. [2025-03-17 19:47:59,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5505 conditions, 1810 events. 833/1810 cut-off events. For 3774/3780 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9416 event pairs, 563 based on Foata normal form. 13/1805 useless extension candidates. Maximal degree in co-relation 4917. Up to 1241 conditions per place. [2025-03-17 19:47:59,914 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2025-03-17 19:47:59,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 72 transitions, 520 flow [2025-03-17 19:47:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:47:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:47:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 115 transitions. [2025-03-17 19:47:59,915 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2025-03-17 19:47:59,915 INFO L175 Difference]: Start difference. First operand has 74 places, 58 transitions, 335 flow. Second operand 5 states and 115 transitions. [2025-03-17 19:47:59,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 72 transitions, 520 flow [2025-03-17 19:47:59,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 72 transitions, 505 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:47:59,920 INFO L231 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2025-03-17 19:47:59,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2025-03-17 19:47:59,921 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-03-17 19:47:59,921 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2025-03-17 19:47:59,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2025-03-17 19:47:59,923 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2025-03-17 19:47:59,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2025-03-17 19:47:59,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2025-03-17 19:47:59,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2025-03-17 19:47:59,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2025-03-17 19:47:59,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2025-03-17 19:47:59,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2025-03-17 19:47:59,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2025-03-17 19:47:59,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2025-03-17 19:47:59,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2025-03-17 19:47:59,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2025-03-17 19:47:59,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2025-03-17 19:47:59,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2025-03-17 19:47:59,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2025-03-17 19:47:59,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2025-03-17 19:47:59,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2025-03-17 19:47:59,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2025-03-17 19:47:59,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2025-03-17 19:47:59,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 19:47:59,925 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:59,929 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 19:47:59,929 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 19:47:59,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:47:59 BasicIcfg [2025-03-17 19:47:59,935 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 19:47:59,935 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:47:59,935 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:47:59,935 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:47:59,936 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:47:52" (3/4) ... [2025-03-17 19:47:59,937 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 19:47:59,939 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-17 19:47:59,939 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-17 19:47:59,947 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 145 nodes and edges [2025-03-17 19:47:59,948 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2025-03-17 19:47:59,948 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2025-03-17 19:47:59,948 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-03-17 19:47:59,949 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-17 19:47:59,949 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-17 19:47:59,949 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 19:48:00,019 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 19:48:00,019 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 19:48:00,020 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:48:00,020 INFO L158 Benchmark]: Toolchain (without parser) took 8888.90ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 111.0MB in the beginning and 307.6MB in the end (delta: -196.5MB). Peak memory consumption was 176.8MB. Max. memory is 16.1GB. [2025-03-17 19:48:00,021 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:48:00,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.82ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 83.3MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 19:48:00,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.50ms. Allocated memory is still 142.6MB. Free memory was 83.3MB in the beginning and 80.8MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:48:00,023 INFO L158 Benchmark]: Boogie Preprocessor took 38.67ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 77.6MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:48:00,024 INFO L158 Benchmark]: IcfgBuilder took 983.21ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 64.3MB in the end (delta: 13.3MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2025-03-17 19:48:00,024 INFO L158 Benchmark]: TraceAbstraction took 7295.98ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 63.4MB in the beginning and 315.9MB in the end (delta: -252.6MB). Peak memory consumption was 124.8MB. Max. memory is 16.1GB. [2025-03-17 19:48:00,024 INFO L158 Benchmark]: Witness Printer took 84.34ms. Allocated memory is still 520.1MB. Free memory was 315.9MB in the beginning and 307.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:48:00,026 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.82ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 83.3MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.50ms. Allocated memory is still 142.6MB. Free memory was 83.3MB in the beginning and 80.8MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.67ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 77.6MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 983.21ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 64.3MB in the end (delta: 13.3MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7295.98ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 63.4MB in the beginning and 315.9MB in the end (delta: -252.6MB). Peak memory consumption was 124.8MB. Max. memory is 16.1GB. * Witness Printer took 84.34ms. Allocated memory is still 520.1MB. Free memory was 315.9MB in the beginning and 307.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 882]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 882]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 885]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 885]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 897]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 897]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 900]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 900]: 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, 83 locations, 90 edges, 18 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: 7.2s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 607 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 543 mSDsluCounter, 172 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1969 IncrementalHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 48 mSDtfsCounter, 1969 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred in iteration=7, InterpolantAutomatonStates: 61, 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, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 325 NumberOfCodeBlocks, 325 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 748 SizeOfPredicates, 2 NumberOfNonLiveVariables, 411 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 27/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 19:48:00,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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