./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d 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/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c -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 5c6d968f3bfd626cfd1fff51fa64657ab37ae457da61332877d0ea5ab7fc90f2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 14:05:22,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 14:05:22,797 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 14:05:22,801 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 14:05:22,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 14:05:22,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 14:05:22,821 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 14:05:22,822 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 14:05:22,822 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 14:05:22,823 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 14:05:22,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 14:05:22,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 14:05:22,824 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 14:05:22,824 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 14:05:22,825 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 14:05:22,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 14:05:22,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 14:05:22,826 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 14:05:22,826 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 14:05:22,826 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 14:05:22,827 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 14:05:22,827 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 14:05:22,827 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 14:05:22,828 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 14:05:22,828 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 14:05:22,828 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 14:05:22,829 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 14:05:22,829 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 14:05:22,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 14:05:22,830 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 14:05:22,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 14:05:22,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 14:05:22,831 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 14:05:22,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 14:05:22,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 14:05:22,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 14:05:22,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 14:05:22,832 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 14:05:22,833 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 14:05:22,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 14:05:22,833 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 14:05:22,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 14:05:22,835 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 14:05:22,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 14:05:22,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c6d968f3bfd626cfd1fff51fa64657ab37ae457da61332877d0ea5ab7fc90f2 [2024-10-13 14:05:23,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 14:05:23,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 14:05:23,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 14:05:23,116 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 14:05:23,116 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 14:05:23,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c [2024-10-13 14:05:24,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 14:05:24,890 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 14:05:24,891 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c [2024-10-13 14:05:24,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44445024b/e9e1607386864135be854bda51f230ba/FLAGae029fb48 [2024-10-13 14:05:24,921 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44445024b/e9e1607386864135be854bda51f230ba [2024-10-13 14:05:24,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 14:05:24,924 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 14:05:24,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 14:05:24,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 14:05:24,931 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 14:05:24,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:05:24" (1/1) ... [2024-10-13 14:05:24,933 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fca52af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:24, skipping insertion in model container [2024-10-13 14:05:24,933 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:05:24" (1/1) ... [2024-10-13 14:05:24,974 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 14:05:25,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 14:05:25,324 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 14:05:25,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 14:05:25,416 INFO L204 MainTranslator]: Completed translation [2024-10-13 14:05:25,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25 WrapperNode [2024-10-13 14:05:25,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 14:05:25,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 14:05:25,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 14:05:25,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 14:05:25,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,484 INFO L138 Inliner]: procedures = 32, calls = 49, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 518 [2024-10-13 14:05:25,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 14:05:25,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 14:05:25,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 14:05:25,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 14:05:25,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,505 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,536 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 14:05:25,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 14:05:25,590 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 14:05:25,590 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 14:05:25,590 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 14:05:25,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (1/1) ... [2024-10-13 14:05:25,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 14:05:25,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:25,635 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) [2024-10-13 14:05:25,639 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 [2024-10-13 14:05:25,693 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2024-10-13 14:05:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2024-10-13 14:05:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 14:05:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2024-10-13 14:05:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2024-10-13 14:05:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-10-13 14:05:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-10-13 14:05:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2024-10-13 14:05:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2024-10-13 14:05:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 14:05:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 14:05:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 14:05:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2024-10-13 14:05:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2024-10-13 14:05:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 14:05:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 14:05:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2024-10-13 14:05:25,698 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2024-10-13 14:05:25,832 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 14:05:25,835 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 14:05:26,457 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-10-13 14:05:26,458 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 14:05:26,543 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 14:05:26,544 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 14:05:26,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:05:26 BoogieIcfgContainer [2024-10-13 14:05:26,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 14:05:26,547 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 14:05:26,547 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 14:05:26,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 14:05:26,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:05:24" (1/3) ... [2024-10-13 14:05:26,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb0d22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:05:26, skipping insertion in model container [2024-10-13 14:05:26,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:25" (2/3) ... [2024-10-13 14:05:26,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb0d22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:05:26, skipping insertion in model container [2024-10-13 14:05:26,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:05:26" (3/3) ... [2024-10-13 14:05:26,556 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c [2024-10-13 14:05:26,574 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 14:05:26,574 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 14:05:26,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 14:05:26,683 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;@40f61b40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 14:05:26,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-13 14:05:26,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 132 states have (on average 1.5984848484848484) internal successors, (211), 134 states have internal predecessors, (211), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-13 14:05:26,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-13 14:05:26,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:26,700 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:05:26,700 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:26,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:26,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1487519119, now seen corresponding path program 1 times [2024-10-13 14:05:26,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:26,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923465001] [2024-10-13 14:05:26,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:26,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-13 14:05:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-13 14:05:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 14:05:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 14:05:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-13 14:05:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 14:05:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 14:05:27,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:27,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923465001] [2024-10-13 14:05:27,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923465001] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:05:27,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 14:05:27,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 14:05:27,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125488103] [2024-10-13 14:05:27,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:05:27,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 14:05:27,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:27,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 14:05:27,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 14:05:27,112 INFO L87 Difference]: Start difference. First operand has 173 states, 132 states have (on average 1.5984848484848484) internal successors, (211), 134 states have internal predecessors, (211), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 14:05:27,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:27,185 INFO L93 Difference]: Finished difference Result 331 states and 547 transitions. [2024-10-13 14:05:27,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 14:05:27,188 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2024-10-13 14:05:27,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:27,201 INFO L225 Difference]: With dead ends: 331 [2024-10-13 14:05:27,201 INFO L226 Difference]: Without dead ends: 171 [2024-10-13 14:05:27,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 14:05:27,213 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 14:05:27,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 264 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 14:05:27,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-10-13 14:05:27,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-10-13 14:05:27,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 131 states have (on average 1.5725190839694656) internal successors, (206), 132 states have internal predecessors, (206), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-13 14:05:27,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 268 transitions. [2024-10-13 14:05:27,268 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 268 transitions. Word has length 64 [2024-10-13 14:05:27,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:27,269 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 268 transitions. [2024-10-13 14:05:27,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 14:05:27,269 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 268 transitions. [2024-10-13 14:05:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-13 14:05:27,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:27,274 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:05:27,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 14:05:27,275 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:27,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:27,275 INFO L85 PathProgramCache]: Analyzing trace with hash 202851731, now seen corresponding path program 1 times [2024-10-13 14:05:27,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:27,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471691297] [2024-10-13 14:05:27,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:27,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-13 14:05:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-13 14:05:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 14:05:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 14:05:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-13 14:05:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 14:05:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,671 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 14:05:27,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:27,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471691297] [2024-10-13 14:05:27,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471691297] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:05:27,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076086962] [2024-10-13 14:05:27,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:27,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:27,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:27,676 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) [2024-10-13 14:05:27,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 14:05:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:27,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 14:05:27,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:05:27,965 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:05:27,966 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 14:05:27,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076086962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:05:27,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 14:05:27,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-13 14:05:27,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589791964] [2024-10-13 14:05:27,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:05:27,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 14:05:27,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:27,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 14:05:27,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-13 14:05:27,970 INFO L87 Difference]: Start difference. First operand 171 states and 268 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-13 14:05:28,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:28,191 INFO L93 Difference]: Finished difference Result 372 states and 576 transitions. [2024-10-13 14:05:28,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 14:05:28,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2024-10-13 14:05:28,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:28,195 INFO L225 Difference]: With dead ends: 372 [2024-10-13 14:05:28,195 INFO L226 Difference]: Without dead ends: 217 [2024-10-13 14:05:28,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-13 14:05:28,198 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 384 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 14:05:28,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 690 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 14:05:28,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-13 14:05:28,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 215. [2024-10-13 14:05:28,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 168 states have (on average 1.5595238095238095) internal successors, (262), 169 states have internal predecessors, (262), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-13 14:05:28,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 332 transitions. [2024-10-13 14:05:28,237 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 332 transitions. Word has length 64 [2024-10-13 14:05:28,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:28,238 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 332 transitions. [2024-10-13 14:05:28,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-13 14:05:28,238 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 332 transitions. [2024-10-13 14:05:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-13 14:05:28,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:28,244 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:05:28,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 14:05:28,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:28,446 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:28,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:28,446 INFO L85 PathProgramCache]: Analyzing trace with hash 888124015, now seen corresponding path program 1 times [2024-10-13 14:05:28,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:28,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283668407] [2024-10-13 14:05:28,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:28,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:28,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:28,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:28,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 14:05:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:28,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 14:05:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:28,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 14:05:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:28,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 14:05:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:28,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 14:05:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:28,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 14:05:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:28,683 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 14:05:28,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:28,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283668407] [2024-10-13 14:05:28,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283668407] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:05:28,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064651447] [2024-10-13 14:05:28,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:28,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:28,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:28,690 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 14:05:28,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 14:05:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:28,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 14:05:28,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:05:28,917 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:05:28,917 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 14:05:28,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064651447] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:05:28,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 14:05:28,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-13 14:05:28,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912067149] [2024-10-13 14:05:28,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:05:28,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 14:05:28,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:28,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 14:05:28,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-13 14:05:28,920 INFO L87 Difference]: Start difference. First operand 215 states and 332 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-13 14:05:29,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:29,098 INFO L93 Difference]: Finished difference Result 373 states and 576 transitions. [2024-10-13 14:05:29,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 14:05:29,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2024-10-13 14:05:29,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:29,102 INFO L225 Difference]: With dead ends: 373 [2024-10-13 14:05:29,102 INFO L226 Difference]: Without dead ends: 218 [2024-10-13 14:05:29,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-13 14:05:29,108 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 384 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 14:05:29,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 690 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 14:05:29,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-10-13 14:05:29,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 217. [2024-10-13 14:05:29,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 170 states have (on average 1.5529411764705883) internal successors, (264), 171 states have internal predecessors, (264), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-13 14:05:29,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 334 transitions. [2024-10-13 14:05:29,130 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 334 transitions. Word has length 65 [2024-10-13 14:05:29,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:29,131 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 334 transitions. [2024-10-13 14:05:29,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-13 14:05:29,131 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 334 transitions. [2024-10-13 14:05:29,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-13 14:05:29,135 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:29,135 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:05:29,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 14:05:29,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 14:05:29,336 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:29,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:29,337 INFO L85 PathProgramCache]: Analyzing trace with hash 697576641, now seen corresponding path program 1 times [2024-10-13 14:05:29,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:29,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019375037] [2024-10-13 14:05:29,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:29,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:29,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:29,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:29,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 14:05:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:29,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 14:05:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:29,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 14:05:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:29,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 14:05:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:29,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-13 14:05:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:29,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 14:05:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:29,500 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 14:05:29,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:29,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019375037] [2024-10-13 14:05:29,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019375037] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:05:29,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117743731] [2024-10-13 14:05:29,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:29,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:29,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:29,504 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 14:05:29,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 14:05:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:29,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 14:05:29,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:05:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 14:05:29,724 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 14:05:29,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117743731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:05:29,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 14:05:29,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-13 14:05:29,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826836853] [2024-10-13 14:05:29,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:05:29,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 14:05:29,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:29,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 14:05:29,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 14:05:29,727 INFO L87 Difference]: Start difference. First operand 217 states and 334 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 14:05:29,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:29,778 INFO L93 Difference]: Finished difference Result 217 states and 334 transitions. [2024-10-13 14:05:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 14:05:29,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2024-10-13 14:05:29,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:29,781 INFO L225 Difference]: With dead ends: 217 [2024-10-13 14:05:29,781 INFO L226 Difference]: Without dead ends: 216 [2024-10-13 14:05:29,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 14:05:29,782 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 108 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 14:05:29,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 621 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 14:05:29,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-10-13 14:05:29,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-10-13 14:05:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 170 states have (on average 1.5470588235294118) internal successors, (263), 170 states have internal predecessors, (263), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-13 14:05:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 333 transitions. [2024-10-13 14:05:29,808 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 333 transitions. Word has length 67 [2024-10-13 14:05:29,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:29,809 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 333 transitions. [2024-10-13 14:05:29,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 14:05:29,809 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 333 transitions. [2024-10-13 14:05:29,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-13 14:05:29,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:29,811 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 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] [2024-10-13 14:05:29,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 14:05:30,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:30,012 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:30,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:30,012 INFO L85 PathProgramCache]: Analyzing trace with hash 150039915, now seen corresponding path program 1 times [2024-10-13 14:05:30,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:30,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039788703] [2024-10-13 14:05:30,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 14:05:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 14:05:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 14:05:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 14:05:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-13 14:05:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 14:05:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,156 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 14:05:30,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:30,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039788703] [2024-10-13 14:05:30,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039788703] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:05:30,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50630626] [2024-10-13 14:05:30,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:30,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:30,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:30,160 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 14:05:30,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 14:05:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 14:05:30,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:05:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 14:05:30,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 14:05:30,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50630626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:05:30,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 14:05:30,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-13 14:05:30,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153957149] [2024-10-13 14:05:30,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:05:30,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 14:05:30,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:30,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 14:05:30,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 14:05:30,360 INFO L87 Difference]: Start difference. First operand 216 states and 333 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 14:05:30,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:30,418 INFO L93 Difference]: Finished difference Result 295 states and 463 transitions. [2024-10-13 14:05:30,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 14:05:30,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-10-13 14:05:30,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:30,421 INFO L225 Difference]: With dead ends: 295 [2024-10-13 14:05:30,421 INFO L226 Difference]: Without dead ends: 294 [2024-10-13 14:05:30,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 14:05:30,422 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 101 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 14:05:30,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 774 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 14:05:30,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-10-13 14:05:30,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2024-10-13 14:05:30,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 225 states have (on average 1.5377777777777777) internal successors, (346), 225 states have internal predecessors, (346), 58 states have call successors, (58), 10 states have call predecessors, (58), 10 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-13 14:05:30,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 462 transitions. [2024-10-13 14:05:30,440 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 462 transitions. Word has length 68 [2024-10-13 14:05:30,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:30,440 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 462 transitions. [2024-10-13 14:05:30,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 14:05:30,440 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 462 transitions. [2024-10-13 14:05:30,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-13 14:05:30,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:30,443 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 14:05:30,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 14:05:30,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:30,647 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:30,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:30,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1646856766, now seen corresponding path program 1 times [2024-10-13 14:05:30,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:30,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606330747] [2024-10-13 14:05:30,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:30,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 14:05:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 14:05:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 14:05:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 14:05:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-13 14:05:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 14:05:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 14:05:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 14:05:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 14:05:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-13 14:05:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 14:05:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 14:05:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 14:05:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:30,909 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-10-13 14:05:30,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:30,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606330747] [2024-10-13 14:05:30,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606330747] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:05:30,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217447459] [2024-10-13 14:05:30,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:30,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:30,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:30,913 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 14:05:30,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 14:05:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:31,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 14:05:31,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:05:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-13 14:05:31,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:05:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-13 14:05:31,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217447459] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:05:31,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:05:31,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2024-10-13 14:05:31,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665918723] [2024-10-13 14:05:31,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:05:31,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 14:05:31,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:31,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 14:05:31,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-13 14:05:31,428 INFO L87 Difference]: Start difference. First operand 294 states and 462 transitions. Second operand has 14 states, 13 states have (on average 11.153846153846153) internal successors, (145), 14 states have internal predecessors, (145), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) [2024-10-13 14:05:31,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:31,752 INFO L93 Difference]: Finished difference Result 684 states and 1084 transitions. [2024-10-13 14:05:31,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 14:05:31,753 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.153846153846153) internal successors, (145), 14 states have internal predecessors, (145), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) Word has length 124 [2024-10-13 14:05:31,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:31,754 INFO L225 Difference]: With dead ends: 684 [2024-10-13 14:05:31,754 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 14:05:31,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-13 14:05:31,757 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 647 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 14:05:31,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1960 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 14:05:31,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 14:05:31,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 14:05:31,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-10-13 14:05:31,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 14:05:31,758 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 124 [2024-10-13 14:05:31,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:31,758 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 14:05:31,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.153846153846153) internal successors, (145), 14 states have internal predecessors, (145), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) [2024-10-13 14:05:31,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 14:05:31,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 14:05:31,763 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-13 14:05:31,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-13 14:05:31,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 14:05:31,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:31,967 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-13 14:05:31,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 14:05:32,610 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 14:05:32,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 02:05:32 BoogieIcfgContainer [2024-10-13 14:05:32,636 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 14:05:32,637 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 14:05:32,637 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 14:05:32,637 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 14:05:32,637 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:05:26" (3/4) ... [2024-10-13 14:05:32,639 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 14:05:32,649 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_manual_selection_history [2024-10-13 14:05:32,649 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flip_the_side [2024-10-13 14:05:32,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side2_failed_history [2024-10-13 14:05:32,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2024-10-13 14:05:32,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side1_failed_history [2024-10-13 14:05:32,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-13 14:05:32,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_active_side_history [2024-10-13 14:05:32,669 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-13 14:05:32,674 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-13 14:05:32,675 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 14:05:32,676 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 14:05:32,844 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 14:05:32,844 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 14:05:32,845 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 14:05:32,845 INFO L158 Benchmark]: Toolchain (without parser) took 7920.87ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 79.5MB in the beginning and 144.5MB in the end (delta: -65.1MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. [2024-10-13 14:05:32,846 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 14:05:32,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.04ms. Allocated memory is still 148.9MB. Free memory was 79.1MB in the beginning and 109.0MB in the end (delta: -29.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-10-13 14:05:32,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.06ms. Allocated memory is still 148.9MB. Free memory was 109.0MB in the beginning and 104.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 14:05:32,847 INFO L158 Benchmark]: Boogie Preprocessor took 99.93ms. Allocated memory is still 148.9MB. Free memory was 104.9MB in the beginning and 100.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 14:05:32,847 INFO L158 Benchmark]: RCFGBuilder took 954.82ms. Allocated memory is still 148.9MB. Free memory was 100.2MB in the beginning and 49.4MB in the end (delta: 50.9MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-10-13 14:05:32,847 INFO L158 Benchmark]: TraceAbstraction took 6089.15ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 48.8MB in the beginning and 48.1MB in the end (delta: 720.0kB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2024-10-13 14:05:32,848 INFO L158 Benchmark]: Witness Printer took 208.07ms. Allocated memory is still 186.6MB. Free memory was 48.1MB in the beginning and 144.5MB in the end (delta: -96.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 14:05:32,849 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.04ms. Allocated memory is still 148.9MB. Free memory was 79.1MB in the beginning and 109.0MB in the end (delta: -29.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.06ms. Allocated memory is still 148.9MB. Free memory was 109.0MB in the beginning and 104.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.93ms. Allocated memory is still 148.9MB. Free memory was 104.9MB in the beginning and 100.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 954.82ms. Allocated memory is still 148.9MB. Free memory was 100.2MB in the beginning and 49.4MB in the end (delta: 50.9MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6089.15ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 48.8MB in the beginning and 48.1MB in the end (delta: 720.0kB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * Witness Printer took 208.07ms. Allocated memory is still 186.6MB. Free memory was 48.1MB in the beginning and 144.5MB in the end (delta: -96.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 173 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1726 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1624 mSDsluCounter, 4999 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3498 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 406 IncrementalHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 1501 mSDtfsCounter, 406 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 649 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=5, 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 840 NumberOfCodeBlocks, 840 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 952 ConstructedInterpolants, 0 QuantifiedInterpolants, 1534 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2119 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 238/312 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 2 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((0 <= i2) && (i2 <= 2147483646)) && (((short) nomsg + 1) <= 0)) - ProcedureContractResult [Line: 173]: Procedure Contract for read_manual_selection_history Derived contract for procedure read_manual_selection_history. Requires: (((short) nomsg + 1) <= 0) Ensures: (((short) nomsg + 1) <= 0) - ProcedureContractResult [Line: 236]: Procedure Contract for flip_the_side Derived contract for procedure flip_the_side. Requires: (((short) nomsg + 1) <= 0) Ensures: (((short) nomsg + 1) <= 0) - ProcedureContractResult [Line: 113]: Procedure Contract for read_side2_failed_history Derived contract for procedure read_side2_failed_history. Requires: (((short) nomsg + 1) <= 0) Ensures: (((short) nomsg + 1) <= 0) - ProcedureContractResult [Line: 612]: Procedure Contract for assert Derived contract for procedure assert. Requires: (((short) nomsg + 1) <= 0) Ensures: (((short) nomsg + 1) <= 0) - ProcedureContractResult [Line: 83]: Procedure Contract for read_side1_failed_history Derived contract for procedure read_side1_failed_history. Requires: (((short) nomsg + 1) <= 0) Ensures: (((short) nomsg + 1) <= 0) - ProcedureContractResult [Line: 57]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (((short) nomsg + 1) <= 0) Ensures: ((cond != 0) && (((short) nomsg + 1) <= 0)) - ProcedureContractResult [Line: 143]: Procedure Contract for read_active_side_history Derived contract for procedure read_active_side_history. Requires: (((short) nomsg + 1) <= 0) Ensures: (((short) nomsg + 1) <= 0) RESULT: Ultimate proved your program to be correct! [2024-10-13 14:05:32,886 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