./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.1.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.1.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 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 14:05:16,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 14:05:16,618 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 14:05:16,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 14:05:16,625 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 14:05:16,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 14:05:16,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 14:05:16,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 14:05:16,654 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 14:05:16,655 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 14:05:16,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 14:05:16,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 14:05:16,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 14:05:16,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 14:05:16,658 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 14:05:16,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 14:05:16,658 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 14:05:16,658 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 14:05:16,659 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 14:05:16,659 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 14:05:16,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 14:05:16,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 14:05:16,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 14:05:16,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 14:05:16,661 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 14:05:16,661 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 14:05:16,662 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 14:05:16,662 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 14:05:16,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 14:05:16,662 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 14:05:16,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 14:05:16,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 14:05:16,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 14:05:16,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 14:05:16,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 14:05:16,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 14:05:16,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 14:05:16,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 14:05:16,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 14:05:16,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 14:05:16,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 14:05:16,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 14:05:16,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 14:05:16,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 14:05:16,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 [2024-10-13 14:05:16,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 14:05:16,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 14:05:16,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 14:05:16,876 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 14:05:16,876 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 14:05:16,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2024-10-13 14:05:18,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 14:05:18,380 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 14:05:18,381 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2024-10-13 14:05:18,389 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49cca020f/a0577f03b6d043128d0b3ec98ae1e6c6/FLAGb796ec55e [2024-10-13 14:05:18,776 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49cca020f/a0577f03b6d043128d0b3ec98ae1e6c6 [2024-10-13 14:05:18,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 14:05:18,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 14:05:18,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 14:05:18,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 14:05:18,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 14:05:18,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:05:18" (1/1) ... [2024-10-13 14:05:18,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@339ac284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:18, skipping insertion in model container [2024-10-13 14:05:18,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:05:18" (1/1) ... [2024-10-13 14:05:18,832 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 14:05:19,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 14:05:19,045 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 14:05:19,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 14:05:19,163 INFO L204 MainTranslator]: Completed translation [2024-10-13 14:05:19,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19 WrapperNode [2024-10-13 14:05:19,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 14:05:19,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 14:05:19,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 14:05:19,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 14:05:19,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,221 INFO L138 Inliner]: procedures = 32, calls = 49, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 518 [2024-10-13 14:05:19,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 14:05:19,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 14:05:19,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 14:05:19,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 14:05:19,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,238 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,260 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 14:05:19,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 14:05:19,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 14:05:19,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 14:05:19,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 14:05:19,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (1/1) ... [2024-10-13 14:05:19,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 14:05:19,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:19,320 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 14:05:19,324 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 14:05:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2024-10-13 14:05:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2024-10-13 14:05:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 14:05:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2024-10-13 14:05:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2024-10-13 14:05:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-10-13 14:05:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-10-13 14:05:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2024-10-13 14:05:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2024-10-13 14:05:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 14:05:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 14:05:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 14:05:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2024-10-13 14:05:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2024-10-13 14:05:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 14:05:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 14:05:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2024-10-13 14:05:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2024-10-13 14:05:19,450 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 14:05:19,452 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 14:05:19,902 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-10-13 14:05:19,902 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 14:05:19,951 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 14:05:19,951 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 14:05:19,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:05:19 BoogieIcfgContainer [2024-10-13 14:05:19,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 14:05:19,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 14:05:19,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 14:05:19,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 14:05:19,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:05:18" (1/3) ... [2024-10-13 14:05:19,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611adbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:05:19, skipping insertion in model container [2024-10-13 14:05:19,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:19" (2/3) ... [2024-10-13 14:05:19,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611adbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:05:19, skipping insertion in model container [2024-10-13 14:05:19,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:05:19" (3/3) ... [2024-10-13 14:05:19,959 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2024-10-13 14:05:19,970 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 14:05:19,971 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 14:05:20,022 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 14:05:20,027 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;@6b2f74ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 14:05:20,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-13 14:05:20,031 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 14:05:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-13 14:05:20,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:20,053 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 14:05:20,054 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:20,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:20,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1487519119, now seen corresponding path program 1 times [2024-10-13 14:05:20,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:20,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690010535] [2024-10-13 14:05:20,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:20,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-13 14:05:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-13 14:05:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 14:05:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 14:05:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-13 14:05:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 14:05:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,400 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 14:05:20,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:20,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690010535] [2024-10-13 14:05:20,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690010535] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:05:20,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 14:05:20,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 14:05:20,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993366670] [2024-10-13 14:05:20,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:05:20,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 14:05:20,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:20,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 14:05:20,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 14:05:20,434 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 14:05:20,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:20,496 INFO L93 Difference]: Finished difference Result 331 states and 547 transitions. [2024-10-13 14:05:20,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 14:05:20,499 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 14:05:20,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:20,506 INFO L225 Difference]: With dead ends: 331 [2024-10-13 14:05:20,506 INFO L226 Difference]: Without dead ends: 171 [2024-10-13 14:05:20,511 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 14:05:20,514 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 14:05:20,515 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 14:05:20,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-10-13 14:05:20,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-10-13 14:05:20,553 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 14:05:20,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 268 transitions. [2024-10-13 14:05:20,556 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 268 transitions. Word has length 64 [2024-10-13 14:05:20,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:20,557 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 268 transitions. [2024-10-13 14:05:20,557 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 14:05:20,557 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 268 transitions. [2024-10-13 14:05:20,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-13 14:05:20,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:20,560 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 14:05:20,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 14:05:20,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:20,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:20,564 INFO L85 PathProgramCache]: Analyzing trace with hash 202851731, now seen corresponding path program 1 times [2024-10-13 14:05:20,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:20,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191748299] [2024-10-13 14:05:20,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:20,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-13 14:05:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-13 14:05:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 14:05:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 14:05:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-13 14:05:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 14:05:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:20,848 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 14:05:20,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:20,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191748299] [2024-10-13 14:05:20,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191748299] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:05:20,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89672870] [2024-10-13 14:05:20,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:20,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:20,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:20,853 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 14:05:20,857 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 14:05:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:21,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 14:05:21,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:05:21,124 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 14:05:21,124 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 14:05:21,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89672870] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:05:21,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 14:05:21,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-13 14:05:21,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615091583] [2024-10-13 14:05:21,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:05:21,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 14:05:21,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:21,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 14:05:21,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-13 14:05:21,131 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 14:05:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:21,349 INFO L93 Difference]: Finished difference Result 372 states and 576 transitions. [2024-10-13 14:05:21,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 14:05:21,349 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 14:05:21,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:21,352 INFO L225 Difference]: With dead ends: 372 [2024-10-13 14:05:21,352 INFO L226 Difference]: Without dead ends: 217 [2024-10-13 14:05:21,353 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 14:05:21,357 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 14:05:21,357 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 14:05:21,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-13 14:05:21,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 215. [2024-10-13 14:05:21,377 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 14:05:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 332 transitions. [2024-10-13 14:05:21,379 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 332 transitions. Word has length 64 [2024-10-13 14:05:21,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:21,379 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 332 transitions. [2024-10-13 14:05:21,380 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 14:05:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 332 transitions. [2024-10-13 14:05:21,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-13 14:05:21,386 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:21,386 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 14:05:21,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 14:05:21,587 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 14:05:21,588 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:21,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:21,589 INFO L85 PathProgramCache]: Analyzing trace with hash 888124015, now seen corresponding path program 1 times [2024-10-13 14:05:21,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:21,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200022665] [2024-10-13 14:05:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:21,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:21,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:21,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:21,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 14:05:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:21,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 14:05:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:21,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 14:05:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:21,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 14:05:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:21,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 14:05:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:21,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 14:05:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:21,722 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 14:05:21,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:21,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200022665] [2024-10-13 14:05:21,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200022665] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:05:21,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64377093] [2024-10-13 14:05:21,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:21,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:21,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:21,724 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 14:05:21,725 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 14:05:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:21,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 14:05:21,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:05:21,871 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 14:05:21,871 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 14:05:21,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64377093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:05:21,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 14:05:21,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-13 14:05:21,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728280492] [2024-10-13 14:05:21,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:05:21,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 14:05:21,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:21,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 14:05:21,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-13 14:05:21,873 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 14:05:21,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:22,000 INFO L93 Difference]: Finished difference Result 373 states and 576 transitions. [2024-10-13 14:05:22,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 14:05:22,000 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 14:05:22,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:22,002 INFO L225 Difference]: With dead ends: 373 [2024-10-13 14:05:22,002 INFO L226 Difference]: Without dead ends: 218 [2024-10-13 14:05:22,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-13 14:05:22,003 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 14:05:22,003 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 14:05:22,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-10-13 14:05:22,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 217. [2024-10-13 14:05:22,030 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 14:05:22,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 334 transitions. [2024-10-13 14:05:22,032 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 334 transitions. Word has length 65 [2024-10-13 14:05:22,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:22,033 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 334 transitions. [2024-10-13 14:05:22,033 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 14:05:22,033 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 334 transitions. [2024-10-13 14:05:22,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-13 14:05:22,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:22,038 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 14:05:22,062 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 14:05:22,238 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 14:05:22,239 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:22,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:22,240 INFO L85 PathProgramCache]: Analyzing trace with hash 697576641, now seen corresponding path program 1 times [2024-10-13 14:05:22,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:22,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481947457] [2024-10-13 14:05:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:22,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 14:05:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 14:05:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 14:05:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 14:05:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-13 14:05:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 14:05:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,377 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 14:05:22,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:22,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481947457] [2024-10-13 14:05:22,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481947457] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:05:22,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654267358] [2024-10-13 14:05:22,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:22,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:22,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:22,379 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 14:05:22,380 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 14:05:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 14:05:22,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:05:22,530 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 14:05:22,530 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 14:05:22,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654267358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:05:22,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 14:05:22,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-13 14:05:22,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967550918] [2024-10-13 14:05:22,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:05:22,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 14:05:22,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:22,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 14:05:22,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 14:05:22,532 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 14:05:22,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:22,563 INFO L93 Difference]: Finished difference Result 217 states and 334 transitions. [2024-10-13 14:05:22,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 14:05:22,563 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 14:05:22,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:22,565 INFO L225 Difference]: With dead ends: 217 [2024-10-13 14:05:22,565 INFO L226 Difference]: Without dead ends: 216 [2024-10-13 14:05:22,565 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 14:05:22,566 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 14:05:22,566 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 14:05:22,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-10-13 14:05:22,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-10-13 14:05:22,589 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 14:05:22,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 333 transitions. [2024-10-13 14:05:22,592 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 333 transitions. Word has length 67 [2024-10-13 14:05:22,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:22,592 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 333 transitions. [2024-10-13 14:05:22,593 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 14:05:22,593 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 333 transitions. [2024-10-13 14:05:22,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-13 14:05:22,594 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:22,594 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 14:05:22,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 14:05:22,798 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 14:05:22,799 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:22,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:22,801 INFO L85 PathProgramCache]: Analyzing trace with hash 150039915, now seen corresponding path program 1 times [2024-10-13 14:05:22,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:22,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117676934] [2024-10-13 14:05:22,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:22,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 14:05:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 14:05:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 14:05:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 14:05:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-13 14:05:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 14:05:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:22,912 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 14:05:22,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:22,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117676934] [2024-10-13 14:05:22,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117676934] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:05:22,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004093805] [2024-10-13 14:05:22,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:22,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:22,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:22,916 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 14:05:22,917 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 14:05:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 14:05:23,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:05:23,085 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 14:05:23,086 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 14:05:23,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004093805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:05:23,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 14:05:23,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-13 14:05:23,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567548822] [2024-10-13 14:05:23,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:05:23,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 14:05:23,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:23,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 14:05:23,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 14:05:23,087 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 14:05:23,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:23,125 INFO L93 Difference]: Finished difference Result 295 states and 463 transitions. [2024-10-13 14:05:23,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 14:05:23,127 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 14:05:23,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:23,128 INFO L225 Difference]: With dead ends: 295 [2024-10-13 14:05:23,128 INFO L226 Difference]: Without dead ends: 294 [2024-10-13 14:05:23,129 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 14:05:23,129 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 14:05:23,130 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 14:05:23,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-10-13 14:05:23,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2024-10-13 14:05:23,139 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 14:05:23,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 462 transitions. [2024-10-13 14:05:23,141 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 462 transitions. Word has length 68 [2024-10-13 14:05:23,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:23,142 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 462 transitions. [2024-10-13 14:05:23,142 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 14:05:23,142 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 462 transitions. [2024-10-13 14:05:23,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-13 14:05:23,143 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:23,143 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 14:05:23,159 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 14:05:23,347 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 14:05:23,348 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 14:05:23,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:23,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1646856766, now seen corresponding path program 1 times [2024-10-13 14:05:23,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:23,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867028239] [2024-10-13 14:05:23,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:23,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:05:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 14:05:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 14:05:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 14:05:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 14:05:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 14:05:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-13 14:05:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-13 14:05:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 14:05:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 14:05:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-13 14:05:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 14:05:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-13 14:05:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 14:05:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 14:05:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 14:05:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,525 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 14:05:23,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:05:23,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867028239] [2024-10-13 14:05:23,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867028239] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:05:23,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132315982] [2024-10-13 14:05:23,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:23,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:05:23,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:23,528 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 14:05:23,530 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 14:05:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:05:23,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 14:05:23,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:05:23,744 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 14:05:23,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:05:23,881 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 14:05:23,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132315982] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:05:23,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:05:23,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2024-10-13 14:05:23,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410625633] [2024-10-13 14:05:23,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:05:23,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 14:05:23,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:05:23,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 14:05:23,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-13 14:05:23,883 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 14:05:24,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:05:24,101 INFO L93 Difference]: Finished difference Result 684 states and 1084 transitions. [2024-10-13 14:05:24,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 14:05:24,102 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 14:05:24,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:05:24,102 INFO L225 Difference]: With dead ends: 684 [2024-10-13 14:05:24,103 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 14:05:24,104 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 14:05:24,104 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 647 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 14:05:24,105 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 14:05:24,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 14:05:24,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 14:05:24,105 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 14:05:24,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 14:05:24,106 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 124 [2024-10-13 14:05:24,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:05:24,106 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 14:05:24,106 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 14:05:24,106 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 14:05:24,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 14:05:24,108 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-13 14:05:24,108 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-13 14:05:24,121 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 14:05:24,309 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 14:05:24,312 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-13 14:05:24,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 14:05:24,816 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 14:05:24,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 02:05:24 BoogieIcfgContainer [2024-10-13 14:05:24,832 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 14:05:24,832 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 14:05:24,832 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 14:05:24,832 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 14:05:24,833 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:05:19" (3/4) ... [2024-10-13 14:05:24,834 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 14:05:24,837 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_manual_selection_history [2024-10-13 14:05:24,837 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flip_the_side [2024-10-13 14:05:24,837 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side2_failed_history [2024-10-13 14:05:24,837 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2024-10-13 14:05:24,837 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side1_failed_history [2024-10-13 14:05:24,837 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-13 14:05:24,837 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_active_side_history [2024-10-13 14:05:24,844 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-13 14:05:24,845 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-13 14:05:24,846 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 14:05:24,846 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 14:05:24,972 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 14:05:24,972 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 14:05:24,972 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 14:05:24,973 INFO L158 Benchmark]: Toolchain (without parser) took 6194.36ms. Allocated memory was 182.5MB in the beginning and 257.9MB in the end (delta: 75.5MB). Free memory was 112.3MB in the beginning and 136.3MB in the end (delta: -24.1MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2024-10-13 14:05:24,973 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 117.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 14:05:24,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.63ms. Allocated memory is still 182.5MB. Free memory was 112.0MB in the beginning and 151.8MB in the end (delta: -39.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-13 14:05:24,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.58ms. Allocated memory is still 182.5MB. Free memory was 151.8MB in the beginning and 148.5MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 14:05:24,973 INFO L158 Benchmark]: Boogie Preprocessor took 61.43ms. Allocated memory is still 182.5MB. Free memory was 147.8MB in the beginning and 143.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 14:05:24,974 INFO L158 Benchmark]: RCFGBuilder took 668.70ms. Allocated memory is still 182.5MB. Free memory was 143.6MB in the beginning and 93.3MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-10-13 14:05:24,974 INFO L158 Benchmark]: TraceAbstraction took 4878.13ms. Allocated memory was 182.5MB in the beginning and 257.9MB in the end (delta: 75.5MB). Free memory was 92.6MB in the beginning and 147.9MB in the end (delta: -55.3MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-10-13 14:05:24,974 INFO L158 Benchmark]: Witness Printer took 140.24ms. Allocated memory is still 257.9MB. Free memory was 147.9MB in the beginning and 136.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 14:05:24,975 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 117.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.63ms. Allocated memory is still 182.5MB. Free memory was 112.0MB in the beginning and 151.8MB in the end (delta: -39.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.58ms. Allocated memory is still 182.5MB. Free memory was 151.8MB in the beginning and 148.5MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.43ms. Allocated memory is still 182.5MB. Free memory was 147.8MB in the beginning and 143.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 668.70ms. Allocated memory is still 182.5MB. Free memory was 143.6MB in the beginning and 93.3MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4878.13ms. Allocated memory was 182.5MB in the beginning and 257.9MB in the end (delta: 75.5MB). Free memory was 92.6MB in the beginning and 147.9MB in the end (delta: -55.3MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Witness Printer took 140.24ms. Allocated memory is still 257.9MB. Free memory was 147.9MB in the beginning and 136.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. 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: 4.3s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1726 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1624 mSDsluCounter, 4999 SdHoareTripleChecker+Invalid, 0.4s 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, 0.2s 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s 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 14:05:24,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE