./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.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 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:33:30,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:33:30,705 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:33:30,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:33:30,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:33:30,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:33:30,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:33:30,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:33:30,742 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:33:30,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:33:30,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:33:30,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:33:30,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:33:30,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:33:30,745 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:33:30,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:33:30,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:33:30,748 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:33:30,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:33:30,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:33:30,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:33:30,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:33:30,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:33:30,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:33:30,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:33:30,751 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:33:30,752 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:33:30,752 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:33:30,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:33:30,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:33:30,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:33:30,753 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:33:30,754 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:33:30,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:33:30,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:33:30,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:33:30,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:33:30,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:33:30,755 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:33:30,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:33:30,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:33:30,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:33:30,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:33:30,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:33:30,758 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf [2024-10-24 23:33:31,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:33:31,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:33:31,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:33:31,043 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:33:31,044 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:33:31,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-10-24 23:33:32,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:33:32,753 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:33:32,758 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-10-24 23:33:32,776 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/496b51a68/53f5e8327f6b45d3a537c4bde71dbbc3/FLAG02651d05e [2024-10-24 23:33:33,066 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/496b51a68/53f5e8327f6b45d3a537c4bde71dbbc3 [2024-10-24 23:33:33,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:33:33,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:33:33,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:33:33,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:33:33,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:33:33,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f9b4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33, skipping insertion in model container [2024-10-24 23:33:33,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,126 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:33:33,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:33:33,510 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:33:33,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:33:33,619 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:33:33,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33 WrapperNode [2024-10-24 23:33:33,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:33:33,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:33:33,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:33:33,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:33:33,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,672 INFO L138 Inliner]: procedures = 162, calls = 54, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 109 [2024-10-24 23:33:33,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:33:33,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:33:33,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:33:33,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:33:33,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,686 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,711 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-24 23:33:33,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,725 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:33:33,731 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:33:33,732 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:33:33,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:33:33,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (1/1) ... [2024-10-24 23:33:33,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:33:33,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:33:33,766 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) [2024-10-24 23:33:33,770 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 [2024-10-24 23:33:33,814 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 23:33:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:33:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 23:33:33,815 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 23:33:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:33:33,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 23:33:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 23:33:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 23:33:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 23:33:33,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:33:33,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:33:33,835 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:33:33,967 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:33:33,970 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:33:34,244 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:33:34,245 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:33:34,438 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:33:34,441 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 23:33:34,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:33:34 BoogieIcfgContainer [2024-10-24 23:33:34,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:33:34,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:33:34,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:33:34,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:33:34,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:33:33" (1/3) ... [2024-10-24 23:33:34,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ec3efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:33:34, skipping insertion in model container [2024-10-24 23:33:34,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33" (2/3) ... [2024-10-24 23:33:34,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ec3efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:33:34, skipping insertion in model container [2024-10-24 23:33:34,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:33:34" (3/3) ... [2024-10-24 23:33:34,450 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2024-10-24 23:33:34,467 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:33:34,468 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-24 23:33:34,468 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:33:34,519 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 23:33:34,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 149 flow [2024-10-24 23:33:34,591 INFO L124 PetriNetUnfolderBase]: 0/70 cut-off events. [2024-10-24 23:33:34,591 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 23:33:34,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-24 23:33:34,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 71 transitions, 149 flow [2024-10-24 23:33:34,598 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 63 transitions, 129 flow [2024-10-24 23:33:34,606 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:33:34,616 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;@2a49003d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:33:34,617 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-10-24 23:33:34,626 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:33:34,626 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-10-24 23:33:34,626 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:33:34,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:34,628 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:34,628 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-24 23:33:34,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:34,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1884511695, now seen corresponding path program 1 times [2024-10-24 23:33:34,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:34,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691342597] [2024-10-24 23:33:34,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:34,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:35,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:35,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691342597] [2024-10-24 23:33:35,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691342597] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:35,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:35,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:33:35,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266579180] [2024-10-24 23:33:35,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:35,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:35,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:35,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:35,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:33:35,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 71 [2024-10-24 23:33:35,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2024-10-24 23:33:35,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:35,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 71 [2024-10-24 23:33:35,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:35,573 INFO L124 PetriNetUnfolderBase]: 457/1372 cut-off events. [2024-10-24 23:33:35,574 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:33:35,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 1372 events. 457/1372 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 9000 event pairs, 34 based on Foata normal form. 18/1335 useless extension candidates. Maximal degree in co-relation 2346. Up to 481 conditions per place. [2024-10-24 23:33:35,589 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 76 selfloop transitions, 7 changer transitions 0/108 dead transitions. [2024-10-24 23:33:35,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 108 transitions, 385 flow [2024-10-24 23:33:35,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:35,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:35,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 193 transitions. [2024-10-24 23:33:35,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6795774647887324 [2024-10-24 23:33:35,604 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 129 flow. Second operand 4 states and 193 transitions. [2024-10-24 23:33:35,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 108 transitions, 385 flow [2024-10-24 23:33:35,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 108 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:33:35,611 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 166 flow [2024-10-24 23:33:35,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2024-10-24 23:33:35,619 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-10-24 23:33:35,619 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 166 flow [2024-10-24 23:33:35,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2024-10-24 23:33:35,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:35,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:35,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:33:35,620 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-24 23:33:35,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:35,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2059958155, now seen corresponding path program 1 times [2024-10-24 23:33:35,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:35,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431903627] [2024-10-24 23:33:35,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:35,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:35,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:35,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:35,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431903627] [2024-10-24 23:33:35,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431903627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:35,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:35,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:33:35,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429137210] [2024-10-24 23:33:35,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:35,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:33:35,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:35,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:33:35,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:33:35,812 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2024-10-24 23:33:35,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-10-24 23:33:35,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:35,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2024-10-24 23:33:35,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:36,230 INFO L124 PetriNetUnfolderBase]: 407/1220 cut-off events. [2024-10-24 23:33:36,230 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2024-10-24 23:33:36,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2282 conditions, 1220 events. 407/1220 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7729 event pairs, 34 based on Foata normal form. 33/1216 useless extension candidates. Maximal degree in co-relation 2270. Up to 375 conditions per place. [2024-10-24 23:33:36,237 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 100 selfloop transitions, 8 changer transitions 0/131 dead transitions. [2024-10-24 23:33:36,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 131 transitions, 516 flow [2024-10-24 23:33:36,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:33:36,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:33:36,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 265 transitions. [2024-10-24 23:33:36,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6220657276995305 [2024-10-24 23:33:36,244 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 166 flow. Second operand 6 states and 265 transitions. [2024-10-24 23:33:36,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 131 transitions, 516 flow [2024-10-24 23:33:36,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 131 transitions, 507 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-24 23:33:36,251 INFO L231 Difference]: Finished difference. Result has 71 places, 63 transitions, 165 flow [2024-10-24 23:33:36,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=165, PETRI_PLACES=71, PETRI_TRANSITIONS=63} [2024-10-24 23:33:36,252 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 4 predicate places. [2024-10-24 23:33:36,253 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 63 transitions, 165 flow [2024-10-24 23:33:36,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-10-24 23:33:36,253 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:36,253 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:36,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 23:33:36,254 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-24 23:33:36,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:36,254 INFO L85 PathProgramCache]: Analyzing trace with hash 565807163, now seen corresponding path program 1 times [2024-10-24 23:33:36,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:36,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842278446] [2024-10-24 23:33:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:36,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:36,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:36,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842278446] [2024-10-24 23:33:36,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842278446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:36,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:36,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:33:36,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582653944] [2024-10-24 23:33:36,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:36,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:33:36,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:36,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:33:36,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:33:36,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2024-10-24 23:33:36,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 63 transitions, 165 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-10-24 23:33:36,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:36,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2024-10-24 23:33:36,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:36,655 INFO L124 PetriNetUnfolderBase]: 393/1188 cut-off events. [2024-10-24 23:33:36,655 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES. [2024-10-24 23:33:36,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2255 conditions, 1188 events. 393/1188 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7484 event pairs, 34 based on Foata normal form. 18/1169 useless extension candidates. Maximal degree in co-relation 2242. Up to 416 conditions per place. [2024-10-24 23:33:36,662 INFO L140 encePairwiseOnDemand]: 62/71 looper letters, 85 selfloop transitions, 8 changer transitions 0/116 dead transitions. [2024-10-24 23:33:36,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 116 transitions, 463 flow [2024-10-24 23:33:36,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:33:36,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:33:36,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 244 transitions. [2024-10-24 23:33:36,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5727699530516432 [2024-10-24 23:33:36,664 INFO L175 Difference]: Start difference. First operand has 71 places, 63 transitions, 165 flow. Second operand 6 states and 244 transitions. [2024-10-24 23:33:36,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 116 transitions, 463 flow [2024-10-24 23:33:36,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 116 transitions, 442 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-24 23:33:36,667 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 158 flow [2024-10-24 23:33:36,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=158, PETRI_PLACES=69, PETRI_TRANSITIONS=62} [2024-10-24 23:33:36,668 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 2 predicate places. [2024-10-24 23:33:36,668 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 158 flow [2024-10-24 23:33:36,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2024-10-24 23:33:36,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:36,669 INFO L204 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, 1, 1] [2024-10-24 23:33:36,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:33:36,671 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-24 23:33:36,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:36,673 INFO L85 PathProgramCache]: Analyzing trace with hash -457855941, now seen corresponding path program 1 times [2024-10-24 23:33:36,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:36,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387944113] [2024-10-24 23:33:36,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:36,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:36,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:36,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:36,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387944113] [2024-10-24 23:33:36,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387944113] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:36,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:36,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:33:36,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289194068] [2024-10-24 23:33:36,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:36,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:36,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:36,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:36,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:33:36,780 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 71 [2024-10-24 23:33:36,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-10-24 23:33:36,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:36,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 71 [2024-10-24 23:33:36,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:37,002 INFO L124 PetriNetUnfolderBase]: 422/1284 cut-off events. [2024-10-24 23:33:37,002 INFO L125 PetriNetUnfolderBase]: For 182/184 co-relation queries the response was YES. [2024-10-24 23:33:37,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2417 conditions, 1284 events. 422/1284 cut-off events. For 182/184 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8118 event pairs, 233 based on Foata normal form. 32/1279 useless extension candidates. Maximal degree in co-relation 2405. Up to 629 conditions per place. [2024-10-24 23:33:37,008 INFO L140 encePairwiseOnDemand]: 65/71 looper letters, 76 selfloop transitions, 4 changer transitions 0/101 dead transitions. [2024-10-24 23:33:37,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 101 transitions, 428 flow [2024-10-24 23:33:37,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:37,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:37,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 183 transitions. [2024-10-24 23:33:37,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6443661971830986 [2024-10-24 23:33:37,009 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 158 flow. Second operand 4 states and 183 transitions. [2024-10-24 23:33:37,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 101 transitions, 428 flow [2024-10-24 23:33:37,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 101 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 23:33:37,012 INFO L231 Difference]: Finished difference. Result has 67 places, 61 transitions, 159 flow [2024-10-24 23:33:37,012 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=159, PETRI_PLACES=67, PETRI_TRANSITIONS=61} [2024-10-24 23:33:37,013 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 0 predicate places. [2024-10-24 23:33:37,013 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 61 transitions, 159 flow [2024-10-24 23:33:37,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-10-24 23:33:37,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:37,014 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:37,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 23:33:37,014 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-24 23:33:37,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:37,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1645447807, now seen corresponding path program 1 times [2024-10-24 23:33:37,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:37,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736350462] [2024-10-24 23:33:37,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:37,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:37,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:37,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:37,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736350462] [2024-10-24 23:33:37,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736350462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:37,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:37,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:33:37,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668692635] [2024-10-24 23:33:37,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:37,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:33:37,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:37,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:33:37,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:33:37,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2024-10-24 23:33:37,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2024-10-24 23:33:37,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:37,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2024-10-24 23:33:37,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:37,475 INFO L124 PetriNetUnfolderBase]: 413/1175 cut-off events. [2024-10-24 23:33:37,475 INFO L125 PetriNetUnfolderBase]: For 250/252 co-relation queries the response was YES. [2024-10-24 23:33:37,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2299 conditions, 1175 events. 413/1175 cut-off events. For 250/252 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7105 event pairs, 233 based on Foata normal form. 42/1212 useless extension candidates. Maximal degree in co-relation 2286. Up to 548 conditions per place. [2024-10-24 23:33:37,482 INFO L140 encePairwiseOnDemand]: 65/71 looper letters, 91 selfloop transitions, 4 changer transitions 0/114 dead transitions. [2024-10-24 23:33:37,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 114 transitions, 493 flow [2024-10-24 23:33:37,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:33:37,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:33:37,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 239 transitions. [2024-10-24 23:33:37,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5610328638497653 [2024-10-24 23:33:37,484 INFO L175 Difference]: Start difference. First operand has 67 places, 61 transitions, 159 flow. Second operand 6 states and 239 transitions. [2024-10-24 23:33:37,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 114 transitions, 493 flow [2024-10-24 23:33:37,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 114 transitions, 487 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:33:37,490 INFO L231 Difference]: Finished difference. Result has 68 places, 59 transitions, 154 flow [2024-10-24 23:33:37,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=68, PETRI_TRANSITIONS=59} [2024-10-24 23:33:37,491 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 1 predicate places. [2024-10-24 23:33:37,493 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 59 transitions, 154 flow [2024-10-24 23:33:37,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2024-10-24 23:33:37,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:37,493 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:37,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 23:33:37,494 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-10-24 23:33:37,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:37,494 INFO L85 PathProgramCache]: Analyzing trace with hash -530724987, now seen corresponding path program 1 times [2024-10-24 23:33:37,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:37,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987718569] [2024-10-24 23:33:37,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:37,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:37,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:37,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987718569] [2024-10-24 23:33:37,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987718569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:37,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:37,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:33:37,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465802723] [2024-10-24 23:33:37,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:37,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:33:37,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:37,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:33:37,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:33:37,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2024-10-24 23:33:37,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 59 transitions, 154 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2024-10-24 23:33:37,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:37,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2024-10-24 23:33:37,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:37,890 INFO L124 PetriNetUnfolderBase]: 385/1115 cut-off events. [2024-10-24 23:33:37,890 INFO L125 PetriNetUnfolderBase]: For 231/233 co-relation queries the response was YES. [2024-10-24 23:33:37,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 1115 events. 385/1115 cut-off events. For 231/233 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6703 event pairs, 233 based on Foata normal form. 32/1142 useless extension candidates. Maximal degree in co-relation 2193. Up to 548 conditions per place. [2024-10-24 23:33:37,894 INFO L140 encePairwiseOnDemand]: 66/71 looper letters, 0 selfloop transitions, 0 changer transitions 113/113 dead transitions. [2024-10-24 23:33:37,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 113 transitions, 491 flow [2024-10-24 23:33:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:33:37,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:33:37,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 236 transitions. [2024-10-24 23:33:37,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5539906103286385 [2024-10-24 23:33:37,896 INFO L175 Difference]: Start difference. First operand has 68 places, 59 transitions, 154 flow. Second operand 6 states and 236 transitions. [2024-10-24 23:33:37,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 113 transitions, 491 flow [2024-10-24 23:33:37,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 113 transitions, 484 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 23:33:37,898 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2024-10-24 23:33:37,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2024-10-24 23:33:37,899 INFO L277 CegarLoopForPetriNet]: 67 programPoint places, 1 predicate places. [2024-10-24 23:33:37,899 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2024-10-24 23:33:37,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2024-10-24 23:33:37,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-10-24 23:33:37,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-10-24 23:33:37,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-10-24 23:33:37,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-10-24 23:33:37,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-10-24 23:33:37,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-10-24 23:33:37,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-10-24 23:33:37,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-10-24 23:33:37,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-10-24 23:33:37,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-10-24 23:33:37,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-10-24 23:33:37,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-10-24 23:33:37,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-10-24 23:33:37,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-10-24 23:33:37,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-10-24 23:33:37,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-10-24 23:33:37,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-10-24 23:33:37,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 23:33:37,906 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-24 23:33:37,911 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 23:33:37,912 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 23:33:37,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:33:37 BasicIcfg [2024-10-24 23:33:37,918 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 23:33:37,919 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:33:37,919 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:33:37,919 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:33:37,919 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:33:34" (3/4) ... [2024-10-24 23:33:37,922 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 23:33:37,925 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-24 23:33:37,932 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-24 23:33:37,933 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-24 23:33:37,933 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-24 23:33:37,933 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 23:33:38,024 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 23:33:38,025 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 23:33:38,025 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:33:38,026 INFO L158 Benchmark]: Toolchain (without parser) took 4956.40ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 99.4MB in the beginning and 111.3MB in the end (delta: -12.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-10-24 23:33:38,026 INFO L158 Benchmark]: CDTParser took 1.12ms. Allocated memory is still 157.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:33:38,026 INFO L158 Benchmark]: CACSL2BoogieTranslator took 548.45ms. Allocated memory is still 157.3MB. Free memory was 99.4MB in the beginning and 77.4MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-24 23:33:38,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.16ms. Allocated memory is still 157.3MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:33:38,027 INFO L158 Benchmark]: Boogie Preprocessor took 57.40ms. Allocated memory is still 157.3MB. Free memory was 75.3MB in the beginning and 72.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:33:38,027 INFO L158 Benchmark]: RCFGBuilder took 710.53ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 72.8MB in the beginning and 136.9MB in the end (delta: -64.1MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-10-24 23:33:38,028 INFO L158 Benchmark]: TraceAbstraction took 3474.48ms. Allocated memory is still 205.5MB. Free memory was 135.9MB in the beginning and 115.5MB in the end (delta: 20.3MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-10-24 23:33:38,028 INFO L158 Benchmark]: Witness Printer took 106.21ms. Allocated memory is still 205.5MB. Free memory was 115.5MB in the beginning and 111.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 23:33:38,030 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12ms. Allocated memory is still 157.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 548.45ms. Allocated memory is still 157.3MB. Free memory was 99.4MB in the beginning and 77.4MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.16ms. Allocated memory is still 157.3MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.40ms. Allocated memory is still 157.3MB. Free memory was 75.3MB in the beginning and 72.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 710.53ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 72.8MB in the beginning and 136.9MB in the end (delta: -64.1MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3474.48ms. Allocated memory is still 205.5MB. Free memory was 135.9MB in the beginning and 115.5MB in the end (delta: 20.3MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Witness Printer took 106.21ms. Allocated memory is still 205.5MB. Free memory was 115.5MB in the beginning and 111.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: 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 3 procedures, 115 locations, 17 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: 3.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 503 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 461 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1443 IncrementalHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 25 mSDtfsCounter, 1443 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=1, InterpolantAutomatonStates: 32, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 23:33:38,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE