./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 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/nla-digbench-scaling/geo1-ll2_unwindbound100.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 b61db512cc77bff784b3cdbd5d852c5dc364bdc7776dcbb3369c7c75ae1fb315 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:46:50,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:46:50,550 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:46:50,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:46:50,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:46:50,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:46:50,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:46:50,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:46:50,589 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:46:50,590 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:46:50,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:46:50,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:46:50,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:46:50,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:46:50,592 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:46:50,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:46:50,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:46:50,593 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:46:50,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:46:50,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:46:50,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:46:50,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:46:50,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:46:50,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:46:50,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:46:50,596 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:46:50,597 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:46:50,597 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:46:50,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:46:50,598 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:46:50,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:46:50,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:46:50,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:46:50,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:46:50,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:46:50,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:46:50,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:46:50,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:46:50,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:46:50,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:46:50,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:46:50,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:46:50,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:46:50,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:46:50,603 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b61db512cc77bff784b3cdbd5d852c5dc364bdc7776dcbb3369c7c75ae1fb315 [2024-10-14 20:46:50,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:46:50,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:46:50,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:46:50,932 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:46:50,933 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:46:50,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound100.c [2024-10-14 20:46:52,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:46:52,614 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:46:52,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound100.c [2024-10-14 20:46:52,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46434905/fb4b811491e74989b06125a4778a3399/FLAGb2eaf86f7 [2024-10-14 20:46:52,639 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46434905/fb4b811491e74989b06125a4778a3399 [2024-10-14 20:46:52,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:46:52,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:46:52,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:46:52,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:46:52,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:46:52,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:52,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496b9804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52, skipping insertion in model container [2024-10-14 20:46:52,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:52,671 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:46:52,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:46:52,871 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:46:52,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:46:52,914 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:46:52,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52 WrapperNode [2024-10-14 20:46:52,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:46:52,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:46:52,916 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:46:52,916 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:46:52,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:52,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:52,949 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-10-14 20:46:52,950 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:46:52,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:46:52,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:46:52,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:46:52,963 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:52,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:52,969 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:52,991 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]. [2024-10-14 20:46:52,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:52,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:52,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:53,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:53,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:53,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:53,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:46:53,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:46:53,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:46:53,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:46:53,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (1/1) ... [2024-10-14 20:46:53,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:46:53,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:46:53,055 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) [2024-10-14 20:46:53,060 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 [2024-10-14 20:46:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:46:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 20:46:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 20:46:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:46:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:46:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:46:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:46:53,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:46:53,178 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:46:53,181 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:46:53,527 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-10-14 20:46:53,527 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:46:53,565 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:46:53,566 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:46:53,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:46:53 BoogieIcfgContainer [2024-10-14 20:46:53,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:46:53,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:46:53,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:46:53,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:46:53,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:46:52" (1/3) ... [2024-10-14 20:46:53,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a81d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:46:53, skipping insertion in model container [2024-10-14 20:46:53,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:46:52" (2/3) ... [2024-10-14 20:46:53,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a81d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:46:53, skipping insertion in model container [2024-10-14 20:46:53,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:46:53" (3/3) ... [2024-10-14 20:46:53,578 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll2_unwindbound100.c [2024-10-14 20:46:53,595 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:46:53,596 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-14 20:46:53,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:46:53,664 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;@5316a293, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:46:53,665 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-14 20:46:53,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 64 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:53,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:46:53,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:53,675 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:46:53,675 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:53,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:53,681 INFO L85 PathProgramCache]: Analyzing trace with hash -2005083564, now seen corresponding path program 1 times [2024-10-14 20:46:53,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:53,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491057927] [2024-10-14 20:46:53,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:53,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:53,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:46:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:53,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:46:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:53,868 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:46:53,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:53,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491057927] [2024-10-14 20:46:53,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491057927] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:46:53,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:46:53,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:46:53,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792268179] [2024-10-14 20:46:53,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:46:53,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:46:53,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:53,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:46:53,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:46:53,905 INFO L87 Difference]: Start difference. First operand has 71 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 64 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:46:53,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:53,936 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2024-10-14 20:46:53,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:46:53,938 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-10-14 20:46:53,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:53,943 INFO L225 Difference]: With dead ends: 140 [2024-10-14 20:46:53,943 INFO L226 Difference]: Without dead ends: 68 [2024-10-14 20:46:53,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:46:53,949 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:53,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:46:53,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-14 20:46:53,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-10-14 20:46:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 62 states have internal predecessors, (64), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:46:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2024-10-14 20:46:53,992 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 14 [2024-10-14 20:46:53,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:53,993 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2024-10-14 20:46:53,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:46:53,994 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2024-10-14 20:46:53,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:46:53,996 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:53,996 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:46:53,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:46:53,997 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:53,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:53,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1246760684, now seen corresponding path program 1 times [2024-10-14 20:46:53,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:53,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619612500] [2024-10-14 20:46:54,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:54,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:54,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:46:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:54,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:46:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:54,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:46:54,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:54,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619612500] [2024-10-14 20:46:54,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619612500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:46:54,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:46:54,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:46:54,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520900778] [2024-10-14 20:46:54,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:46:54,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:46:54,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:54,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:46:54,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:46:54,189 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:46:54,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:54,264 INFO L93 Difference]: Finished difference Result 90 states and 92 transitions. [2024-10-14 20:46:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:46:54,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-14 20:46:54,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:54,266 INFO L225 Difference]: With dead ends: 90 [2024-10-14 20:46:54,269 INFO L226 Difference]: Without dead ends: 72 [2024-10-14 20:46:54,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:46:54,270 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 9 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:54,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 185 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:46:54,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-14 20:46:54,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-10-14 20:46:54,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 66 states have internal predecessors, (68), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:46:54,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2024-10-14 20:46:54,287 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 14 [2024-10-14 20:46:54,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:54,289 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2024-10-14 20:46:54,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:46:54,289 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2024-10-14 20:46:54,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 20:46:54,290 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:54,290 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:46:54,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:46:54,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:54,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:54,292 INFO L85 PathProgramCache]: Analyzing trace with hash 629682618, now seen corresponding path program 1 times [2024-10-14 20:46:54,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:54,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637048547] [2024-10-14 20:46:54,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:54,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:46:54,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28852132] [2024-10-14 20:46:54,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:54,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:54,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:46:54,329 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) [2024-10-14 20:46:54,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:46:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:54,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:46:54,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:46:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:46:54,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:46:54,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637048547] [2024-10-14 20:46:54,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:46:54,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28852132] [2024-10-14 20:46:54,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28852132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:46:54,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:46:54,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:46:54,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290237585] [2024-10-14 20:46:54,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:46:54,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:46:54,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:54,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:46:54,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:46:54,475 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:46:54,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:54,666 INFO L93 Difference]: Finished difference Result 99 states and 114 transitions. [2024-10-14 20:46:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:46:54,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-10-14 20:46:54,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:54,669 INFO L225 Difference]: With dead ends: 99 [2024-10-14 20:46:54,669 INFO L226 Difference]: Without dead ends: 94 [2024-10-14 20:46:54,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:46:54,670 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 51 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:54,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 70 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:46:54,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-14 20:46:54,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-10-14 20:46:54,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 83 states have internal predecessors, (97), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:54,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2024-10-14 20:46:54,689 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 17 [2024-10-14 20:46:54,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:54,691 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2024-10-14 20:46:54,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:46:54,691 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2024-10-14 20:46:54,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-14 20:46:54,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:54,692 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:46:54,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 20:46:54,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:54,893 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:54,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:54,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1954675269, now seen corresponding path program 1 times [2024-10-14 20:46:54,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:54,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082304091] [2024-10-14 20:46:54,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:54,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:46:54,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977892932] [2024-10-14 20:46:54,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:54,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:54,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:46:54,919 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) [2024-10-14 20:46:54,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:46:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:55,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:46:55,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:46:55,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:46:55,107 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:46:55,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:55,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082304091] [2024-10-14 20:46:55,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:46:55,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977892932] [2024-10-14 20:46:55,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977892932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:46:55,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:46:55,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:46:55,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378706763] [2024-10-14 20:46:55,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:46:55,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:46:55,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:55,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:46:55,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:46:55,114 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:46:55,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:55,239 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2024-10-14 20:46:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:46:55,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-10-14 20:46:55,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:55,241 INFO L225 Difference]: With dead ends: 99 [2024-10-14 20:46:55,241 INFO L226 Difference]: Without dead ends: 93 [2024-10-14 20:46:55,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:46:55,242 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 50 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:55,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 70 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:46:55,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-14 20:46:55,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-10-14 20:46:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.5666666666666667) internal successors, (94), 84 states have internal predecessors, (94), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:55,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2024-10-14 20:46:55,254 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 18 [2024-10-14 20:46:55,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:55,255 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2024-10-14 20:46:55,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:46:55,255 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2024-10-14 20:46:55,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-14 20:46:55,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:55,256 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:46:55,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 20:46:55,460 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,SelfDestructingSolverStorable3 [2024-10-14 20:46:55,462 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:55,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:55,462 INFO L85 PathProgramCache]: Analyzing trace with hash -564284930, now seen corresponding path program 1 times [2024-10-14 20:46:55,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:55,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63122947] [2024-10-14 20:46:55,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:55,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:46:55,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648259855] [2024-10-14 20:46:55,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:55,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:55,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:46:55,494 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) [2024-10-14 20:46:55,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:46:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:55,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:46:55,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:46:55,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:46:55,592 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:46:55,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:55,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63122947] [2024-10-14 20:46:55,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:46:55,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648259855] [2024-10-14 20:46:55,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648259855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:46:55,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:46:55,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:46:55,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941252184] [2024-10-14 20:46:55,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:46:55,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:46:55,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:55,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:46:55,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:46:55,594 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:46:55,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:55,760 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2024-10-14 20:46:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:46:55,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-10-14 20:46:55,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:55,762 INFO L225 Difference]: With dead ends: 95 [2024-10-14 20:46:55,764 INFO L226 Difference]: Without dead ends: 93 [2024-10-14 20:46:55,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:46:55,765 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:55,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 74 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:46:55,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-14 20:46:55,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-10-14 20:46:55,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 84 states have internal predecessors, (92), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2024-10-14 20:46:55,773 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 21 [2024-10-14 20:46:55,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:55,774 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2024-10-14 20:46:55,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:46:55,774 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2024-10-14 20:46:55,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-14 20:46:55,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:55,775 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:46:55,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 20:46:55,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:55,976 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:55,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:55,976 INFO L85 PathProgramCache]: Analyzing trace with hash -312963585, now seen corresponding path program 1 times [2024-10-14 20:46:55,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:55,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699511278] [2024-10-14 20:46:55,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:55,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:56,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:46:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:56,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:46:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:46:56,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:56,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699511278] [2024-10-14 20:46:56,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699511278] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:46:56,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523042236] [2024-10-14 20:46:56,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:56,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:56,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:46:56,227 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) [2024-10-14 20:46:56,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:46:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:56,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:46:56,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:46:56,328 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:46:56,331 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:46:56,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523042236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:46:56,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:46:56,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-14 20:46:56,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559873042] [2024-10-14 20:46:56,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:46:56,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:46:56,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:56,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:46:56,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:46:56,333 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:46:56,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:56,504 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2024-10-14 20:46:56,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:46:56,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-10-14 20:46:56,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:56,505 INFO L225 Difference]: With dead ends: 95 [2024-10-14 20:46:56,505 INFO L226 Difference]: Without dead ends: 93 [2024-10-14 20:46:56,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:46:56,506 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:56,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 76 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:46:56,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-14 20:46:56,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-10-14 20:46:56,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.5) internal successors, (90), 84 states have internal predecessors, (90), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:56,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2024-10-14 20:46:56,519 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 22 [2024-10-14 20:46:56,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:56,519 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2024-10-14 20:46:56,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:46:56,519 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2024-10-14 20:46:56,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-14 20:46:56,520 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:56,520 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:46:56,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 20:46:56,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:56,721 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:56,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:56,721 INFO L85 PathProgramCache]: Analyzing trace with hash 697166701, now seen corresponding path program 1 times [2024-10-14 20:46:56,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:56,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374165556] [2024-10-14 20:46:56,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:56,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:56,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:46:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:56,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:46:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:56,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:46:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:56,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:46:56,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:56,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374165556] [2024-10-14 20:46:56,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374165556] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:46:56,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210350942] [2024-10-14 20:46:56,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:56,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:56,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:46:56,839 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) [2024-10-14 20:46:56,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:46:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:56,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:46:56,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:46:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:46:56,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:46:57,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:46:57,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210350942] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:46:57,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:46:57,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-10-14 20:46:57,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979040145] [2024-10-14 20:46:57,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:46:57,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:46:57,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:57,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:46:57,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:46:57,019 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:46:57,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:57,135 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2024-10-14 20:46:57,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:46:57,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 31 [2024-10-14 20:46:57,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:57,137 INFO L225 Difference]: With dead ends: 91 [2024-10-14 20:46:57,137 INFO L226 Difference]: Without dead ends: 90 [2024-10-14 20:46:57,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:46:57,138 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 34 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:57,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 120 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:46:57,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-14 20:46:57,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-14 20:46:57,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.4666666666666666) internal successors, (88), 83 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:57,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2024-10-14 20:46:57,145 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 31 [2024-10-14 20:46:57,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:57,145 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2024-10-14 20:46:57,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:46:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-10-14 20:46:57,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-14 20:46:57,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:57,147 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:46:57,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 20:46:57,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:57,351 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:57,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:57,351 INFO L85 PathProgramCache]: Analyzing trace with hash 697166744, now seen corresponding path program 1 times [2024-10-14 20:46:57,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:57,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245927955] [2024-10-14 20:46:57,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:57,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:46:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:46:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:46:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:46:57,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:57,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245927955] [2024-10-14 20:46:57,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245927955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:46:57,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:46:57,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:46:57,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898077325] [2024-10-14 20:46:57,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:46:57,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:46:57,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:57,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:46:57,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:46:57,420 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:46:57,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:57,454 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2024-10-14 20:46:57,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:46:57,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-10-14 20:46:57,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:57,456 INFO L225 Difference]: With dead ends: 92 [2024-10-14 20:46:57,456 INFO L226 Difference]: Without dead ends: 90 [2024-10-14 20:46:57,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:46:57,457 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:57,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 123 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:46:57,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-14 20:46:57,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-14 20:46:57,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 83 states have internal predecessors, (86), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:57,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2024-10-14 20:46:57,464 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 31 [2024-10-14 20:46:57,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:57,465 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2024-10-14 20:46:57,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:46:57,465 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2024-10-14 20:46:57,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-14 20:46:57,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:57,466 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:46:57,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 20:46:57,466 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:57,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:57,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1865638799, now seen corresponding path program 1 times [2024-10-14 20:46:57,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:57,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454074910] [2024-10-14 20:46:57,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:57,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:46:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:46:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:46:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:46:57,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:57,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454074910] [2024-10-14 20:46:57,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454074910] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:46:57,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:46:57,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:46:57,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303241530] [2024-10-14 20:46:57,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:46:57,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:46:57,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:57,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:46:57,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:46:57,563 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:46:57,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:57,803 INFO L93 Difference]: Finished difference Result 124 states and 145 transitions. [2024-10-14 20:46:57,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:46:57,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-10-14 20:46:57,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:57,805 INFO L225 Difference]: With dead ends: 124 [2024-10-14 20:46:57,805 INFO L226 Difference]: Without dead ends: 123 [2024-10-14 20:46:57,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:46:57,806 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 46 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:57,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 94 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:46:57,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-10-14 20:46:57,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 91. [2024-10-14 20:46:57,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 84 states have internal predecessors, (87), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:57,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2024-10-14 20:46:57,819 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 35 [2024-10-14 20:46:57,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:57,820 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2024-10-14 20:46:57,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:46:57,820 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2024-10-14 20:46:57,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-14 20:46:57,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:57,821 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:46:57,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 20:46:57,821 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:57,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:57,822 INFO L85 PathProgramCache]: Analyzing trace with hash -2000227819, now seen corresponding path program 1 times [2024-10-14 20:46:57,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:57,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854794127] [2024-10-14 20:46:57,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:57,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:46:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:46:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:46:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:57,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:46:57,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:57,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854794127] [2024-10-14 20:46:57,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854794127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:46:57,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:46:57,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:46:57,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220502722] [2024-10-14 20:46:57,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:46:57,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:46:57,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:57,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:46:57,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:46:57,888 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:46:58,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:58,111 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2024-10-14 20:46:58,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:46:58,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-10-14 20:46:58,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:58,113 INFO L225 Difference]: With dead ends: 93 [2024-10-14 20:46:58,113 INFO L226 Difference]: Without dead ends: 92 [2024-10-14 20:46:58,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:46:58,114 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 20 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:58,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 81 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:46:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-14 20:46:58,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-10-14 20:46:58,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 85 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2024-10-14 20:46:58,119 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 36 [2024-10-14 20:46:58,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:58,120 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2024-10-14 20:46:58,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:46:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2024-10-14 20:46:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:46:58,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:58,121 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:46:58,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 20:46:58,121 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:58,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:58,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1877520141, now seen corresponding path program 1 times [2024-10-14 20:46:58,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:58,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534485594] [2024-10-14 20:46:58,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:58,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:58,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:46:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:58,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:46:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:58,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:46:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:58,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:46:58,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:58,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534485594] [2024-10-14 20:46:58,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534485594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:46:58,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:46:58,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:46:58,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284155623] [2024-10-14 20:46:58,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:46:58,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:46:58,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:58,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:46:58,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:46:58,169 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:46:58,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:58,648 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2024-10-14 20:46:58,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:46:58,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2024-10-14 20:46:58,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:58,650 INFO L225 Difference]: With dead ends: 101 [2024-10-14 20:46:58,650 INFO L226 Difference]: Without dead ends: 99 [2024-10-14 20:46:58,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:46:58,650 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 17 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:58,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 82 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:46:58,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-14 20:46:58,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2024-10-14 20:46:58,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 69 states have (on average 1.4202898550724639) internal successors, (98), 91 states have internal predecessors, (98), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:58,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2024-10-14 20:46:58,657 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 37 [2024-10-14 20:46:58,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:58,657 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2024-10-14 20:46:58,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:46:58,657 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2024-10-14 20:46:58,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:46:58,658 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:58,658 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:46:58,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 20:46:58,659 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:58,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:58,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1363314110, now seen corresponding path program 1 times [2024-10-14 20:46:58,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:58,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518123391] [2024-10-14 20:46:58,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:58,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:46:58,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075198761] [2024-10-14 20:46:58,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:58,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:58,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:46:58,676 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:46:58,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:46:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:58,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 20:46:58,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:46:58,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:46:58,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:46:59,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:59,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518123391] [2024-10-14 20:46:59,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:46:59,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075198761] [2024-10-14 20:46:59,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075198761] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:46:59,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:46:59,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-14 20:46:59,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152723294] [2024-10-14 20:46:59,023 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:46:59,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:46:59,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:59,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:46:59,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:46:59,024 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:46:59,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:59,141 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2024-10-14 20:46:59,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:46:59,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2024-10-14 20:46:59,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:59,142 INFO L225 Difference]: With dead ends: 98 [2024-10-14 20:46:59,142 INFO L226 Difference]: Without dead ends: 97 [2024-10-14 20:46:59,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:46:59,143 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 21 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:59,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 110 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:46:59,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-14 20:46:59,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-10-14 20:46:59,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 90 states have internal predecessors, (97), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:59,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2024-10-14 20:46:59,149 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 37 [2024-10-14 20:46:59,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:59,149 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2024-10-14 20:46:59,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:46:59,149 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2024-10-14 20:46:59,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 20:46:59,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:59,150 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:46:59,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 20:46:59,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:59,351 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:59,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:59,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1926417879, now seen corresponding path program 1 times [2024-10-14 20:46:59,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:59,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604119618] [2024-10-14 20:46:59,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:59,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:59,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:46:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:59,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:46:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:59,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:46:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:59,415 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:46:59,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:59,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604119618] [2024-10-14 20:46:59,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604119618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:46:59,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:46:59,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:46:59,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498764150] [2024-10-14 20:46:59,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:46:59,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:46:59,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:59,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:46:59,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:46:59,418 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:46:59,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:59,747 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2024-10-14 20:46:59,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:46:59,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-10-14 20:46:59,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:59,749 INFO L225 Difference]: With dead ends: 99 [2024-10-14 20:46:59,749 INFO L226 Difference]: Without dead ends: 90 [2024-10-14 20:46:59,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:46:59,751 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 19 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:59,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 84 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:46:59,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-14 20:46:59,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-14 20:46:59,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 83 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:46:59,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2024-10-14 20:46:59,756 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 38 [2024-10-14 20:46:59,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:59,756 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2024-10-14 20:46:59,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:46:59,756 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-10-14 20:46:59,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 20:46:59,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:59,759 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:46:59,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 20:46:59,759 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:46:59,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:59,759 INFO L85 PathProgramCache]: Analyzing trace with hash -686935463, now seen corresponding path program 1 times [2024-10-14 20:46:59,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:59,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938510660] [2024-10-14 20:46:59,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:59,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:46:59,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068184270] [2024-10-14 20:46:59,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:59,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:59,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:46:59,775 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:46:59,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:46:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:59,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 20:46:59,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:46:59,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:46:59,985 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:47:00,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:47:00,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938510660] [2024-10-14 20:47:00,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:47:00,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068184270] [2024-10-14 20:47:00,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068184270] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:47:00,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:47:00,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-14 20:47:00,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998720419] [2024-10-14 20:47:00,547 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:47:00,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:47:00,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:47:00,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:47:00,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:47:00,548 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:47:00,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:00,785 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2024-10-14 20:47:00,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:47:00,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2024-10-14 20:47:00,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:00,786 INFO L225 Difference]: With dead ends: 93 [2024-10-14 20:47:00,787 INFO L226 Difference]: Without dead ends: 92 [2024-10-14 20:47:00,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:47:00,787 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 62 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:00,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 120 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:47:00,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-14 20:47:00,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-10-14 20:47:00,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 64 states have (on average 1.40625) internal successors, (90), 85 states have internal predecessors, (90), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:47:00,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2024-10-14 20:47:00,793 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 38 [2024-10-14 20:47:00,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:00,793 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2024-10-14 20:47:00,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:47:00,793 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2024-10-14 20:47:00,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-14 20:47:00,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:00,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:47:00,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:47:00,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:00,995 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:00,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:00,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1279984923, now seen corresponding path program 1 times [2024-10-14 20:47:00,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:47:00,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651621286] [2024-10-14 20:47:00,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:00,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:47:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:01,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:47:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:01,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:47:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:01,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:47:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:01,072 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:01,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:47:01,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651621286] [2024-10-14 20:47:01,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651621286] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:47:01,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087108399] [2024-10-14 20:47:01,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:01,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:01,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:47:01,074 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:47:01,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:47:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:01,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:47:01,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:47:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:01,187 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:47:01,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087108399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:47:01,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:47:01,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-14 20:47:01,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416925149] [2024-10-14 20:47:01,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:47:01,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:47:01,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:47:01,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:47:01,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:47:01,189 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:47:01,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:01,212 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2024-10-14 20:47:01,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:47:01,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-10-14 20:47:01,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:01,213 INFO L225 Difference]: With dead ends: 92 [2024-10-14 20:47:01,213 INFO L226 Difference]: Without dead ends: 91 [2024-10-14 20:47:01,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:47:01,213 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 43 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:01,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 116 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:47:01,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-14 20:47:01,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-10-14 20:47:01,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 64 states have (on average 1.390625) internal successors, (89), 84 states have internal predecessors, (89), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:47:01,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 97 transitions. [2024-10-14 20:47:01,220 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 97 transitions. Word has length 40 [2024-10-14 20:47:01,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:01,220 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 97 transitions. [2024-10-14 20:47:01,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:47:01,221 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2024-10-14 20:47:01,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 20:47:01,221 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:01,222 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:47:01,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 20:47:01,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-14 20:47:01,423 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:01,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:01,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1024826993, now seen corresponding path program 1 times [2024-10-14 20:47:01,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:47:01,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797438607] [2024-10-14 20:47:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:01,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:47:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:01,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:47:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:01,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:47:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:01,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:47:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:01,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:47:01,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797438607] [2024-10-14 20:47:01,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797438607] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:47:01,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5750808] [2024-10-14 20:47:01,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:01,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:01,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:47:01,503 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:47:01,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:47:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:01,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:47:01,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:47:01,620 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:01,621 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:47:01,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5750808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:47:01,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:47:01,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-14 20:47:01,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934620812] [2024-10-14 20:47:01,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:47:01,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:47:01,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:47:01,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:47:01,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:47:01,623 INFO L87 Difference]: Start difference. First operand 91 states and 97 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:47:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:01,663 INFO L93 Difference]: Finished difference Result 95 states and 97 transitions. [2024-10-14 20:47:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:47:01,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-10-14 20:47:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:01,664 INFO L225 Difference]: With dead ends: 95 [2024-10-14 20:47:01,664 INFO L226 Difference]: Without dead ends: 94 [2024-10-14 20:47:01,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:47:01,665 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 36 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:01,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 208 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:47:01,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-14 20:47:01,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-10-14 20:47:01,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 64 states have (on average 1.375) internal successors, (88), 83 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:47:01,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2024-10-14 20:47:01,671 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 41 [2024-10-14 20:47:01,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:01,672 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2024-10-14 20:47:01,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:47:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-10-14 20:47:01,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 20:47:01,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:01,674 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-10-14 20:47:01,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-14 20:47:01,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-14 20:47:01,875 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:01,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:01,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1311231059, now seen corresponding path program 1 times [2024-10-14 20:47:01,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:47:01,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64210414] [2024-10-14 20:47:01,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:01,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:47:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:47:01,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116584821] [2024-10-14 20:47:01,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:01,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:01,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:47:01,890 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:47:01,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:47:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:01,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:47:01,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:47:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:47:02,123 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:47:02,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:47:02,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64210414] [2024-10-14 20:47:02,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:47:02,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116584821] [2024-10-14 20:47:02,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116584821] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:47:02,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:47:02,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:47:02,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988204689] [2024-10-14 20:47:02,241 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:47:02,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:47:02,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:47:02,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:47:02,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:47:02,242 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 8 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:47:02,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:02,391 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2024-10-14 20:47:02,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:47:02,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 43 [2024-10-14 20:47:02,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:02,392 INFO L225 Difference]: With dead ends: 90 [2024-10-14 20:47:02,392 INFO L226 Difference]: Without dead ends: 85 [2024-10-14 20:47:02,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:47:02,393 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 21 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:02,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 153 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:47:02,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-14 20:47:02,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-14 20:47:02,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 64 states have (on average 1.28125) internal successors, (82), 78 states have internal predecessors, (82), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:47:02,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2024-10-14 20:47:02,398 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 43 [2024-10-14 20:47:02,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:02,398 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2024-10-14 20:47:02,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:47:02,399 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2024-10-14 20:47:02,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 20:47:02,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:02,399 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:47:02,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-14 20:47:02,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-14 20:47:02,604 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:02,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:02,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1993457218, now seen corresponding path program 1 times [2024-10-14 20:47:02,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:47:02,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049116191] [2024-10-14 20:47:02,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:02,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:47:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:47:02,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701937904] [2024-10-14 20:47:02,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:02,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:02,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:47:02,616 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:47:02,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 20:47:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:02,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:47:02,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:47:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:47:02,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:47:03,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:47:03,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049116191] [2024-10-14 20:47:03,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:47:03,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701937904] [2024-10-14 20:47:03,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701937904] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:47:03,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:47:03,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:47:03,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074430003] [2024-10-14 20:47:03,386 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:47:03,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:47:03,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:47:03,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:47:03,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:47:03,387 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:47:03,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:03,528 INFO L93 Difference]: Finished difference Result 120 states and 132 transitions. [2024-10-14 20:47:03,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:47:03,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2024-10-14 20:47:03,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:03,530 INFO L225 Difference]: With dead ends: 120 [2024-10-14 20:47:03,530 INFO L226 Difference]: Without dead ends: 115 [2024-10-14 20:47:03,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:47:03,531 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 69 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:03,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 126 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:47:03,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-10-14 20:47:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2024-10-14 20:47:03,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 105 states have internal predecessors, (116), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:47:03,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2024-10-14 20:47:03,539 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 44 [2024-10-14 20:47:03,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:03,539 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2024-10-14 20:47:03,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:47:03,539 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2024-10-14 20:47:03,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 20:47:03,540 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:03,540 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] [2024-10-14 20:47:03,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-14 20:47:03,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-14 20:47:03,740 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:03,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:03,741 INFO L85 PathProgramCache]: Analyzing trace with hash 553102530, now seen corresponding path program 1 times [2024-10-14 20:47:03,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:47:03,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915239742] [2024-10-14 20:47:03,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:03,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:47:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:03,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:47:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:03,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:47:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:03,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:47:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:03,788 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:47:03,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:47:03,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915239742] [2024-10-14 20:47:03,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915239742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:47:03,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:47:03,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:47:03,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094788036] [2024-10-14 20:47:03,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:47:03,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:47:03,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:47:03,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:47:03,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:47:03,790 INFO L87 Difference]: Start difference. First operand 113 states and 126 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 20:47:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:04,048 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2024-10-14 20:47:04,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:47:04,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2024-10-14 20:47:04,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:04,050 INFO L225 Difference]: With dead ends: 113 [2024-10-14 20:47:04,050 INFO L226 Difference]: Without dead ends: 112 [2024-10-14 20:47:04,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:47:04,051 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 48 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:04,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 74 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:47:04,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-14 20:47:04,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-10-14 20:47:04,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 91 states have (on average 1.2527472527472527) internal successors, (114), 104 states have internal predecessors, (114), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:47:04,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2024-10-14 20:47:04,062 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 47 [2024-10-14 20:47:04,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:04,062 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2024-10-14 20:47:04,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 20:47:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2024-10-14 20:47:04,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 20:47:04,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:04,063 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:47:04,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 20:47:04,064 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:04,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:04,064 INFO L85 PathProgramCache]: Analyzing trace with hash 571234327, now seen corresponding path program 1 times [2024-10-14 20:47:04,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:47:04,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094090774] [2024-10-14 20:47:04,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:04,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:47:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:47:04,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547949084] [2024-10-14 20:47:04,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:04,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:04,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:47:04,085 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:47:04,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 20:47:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:04,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:47:04,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:47:04,245 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:04,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:47:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:04,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:47:04,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094090774] [2024-10-14 20:47:04,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:47:04,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547949084] [2024-10-14 20:47:04,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547949084] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:47:04,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:47:04,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-14 20:47:04,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666847561] [2024-10-14 20:47:04,619 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:47:04,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:47:04,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:47:04,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:47:04,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:47:04,620 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:47:05,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:05,914 INFO L93 Difference]: Finished difference Result 132 states and 145 transitions. [2024-10-14 20:47:05,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:47:05,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2024-10-14 20:47:05,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:05,915 INFO L225 Difference]: With dead ends: 132 [2024-10-14 20:47:05,915 INFO L226 Difference]: Without dead ends: 129 [2024-10-14 20:47:05,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:47:05,916 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 35 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:05,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 156 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 20:47:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-10-14 20:47:05,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2024-10-14 20:47:05,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 102 states have (on average 1.2352941176470589) internal successors, (126), 115 states have internal predecessors, (126), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:47:05,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2024-10-14 20:47:05,922 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 47 [2024-10-14 20:47:05,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:05,922 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2024-10-14 20:47:05,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:47:05,923 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2024-10-14 20:47:05,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 20:47:05,923 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:05,923 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] [2024-10-14 20:47:05,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-14 20:47:06,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:06,128 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:06,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:06,128 INFO L85 PathProgramCache]: Analyzing trace with hash -33690652, now seen corresponding path program 1 times [2024-10-14 20:47:06,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:47:06,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024699101] [2024-10-14 20:47:06,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:06,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:47:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:06,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:47:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:06,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:47:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:06,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:47:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:06,224 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:06,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:47:06,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024699101] [2024-10-14 20:47:06,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024699101] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:47:06,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073714983] [2024-10-14 20:47:06,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:06,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:06,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:47:06,227 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:47:06,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 20:47:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:06,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:47:06,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:47:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:06,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:47:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:06,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073714983] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:47:06,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:47:06,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-10-14 20:47:06,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267260612] [2024-10-14 20:47:06,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:47:06,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 20:47:06,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:47:06,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 20:47:06,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:47:06,398 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-14 20:47:06,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:06,528 INFO L93 Difference]: Finished difference Result 187 states and 192 transitions. [2024-10-14 20:47:06,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 20:47:06,528 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 48 [2024-10-14 20:47:06,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:06,529 INFO L225 Difference]: With dead ends: 187 [2024-10-14 20:47:06,529 INFO L226 Difference]: Without dead ends: 171 [2024-10-14 20:47:06,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:47:06,530 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 73 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:06,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 456 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:47:06,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-10-14 20:47:06,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 148. [2024-10-14 20:47:06,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2439024390243902) internal successors, (153), 136 states have internal predecessors, (153), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:47:06,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 165 transitions. [2024-10-14 20:47:06,538 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 165 transitions. Word has length 48 [2024-10-14 20:47:06,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:06,538 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 165 transitions. [2024-10-14 20:47:06,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-14 20:47:06,538 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 165 transitions. [2024-10-14 20:47:06,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-14 20:47:06,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:06,539 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-10-14 20:47:06,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-14 20:47:06,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-14 20:47:06,740 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:06,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:06,740 INFO L85 PathProgramCache]: Analyzing trace with hash 33195633, now seen corresponding path program 1 times [2024-10-14 20:47:06,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:47:06,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414447591] [2024-10-14 20:47:06,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:06,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:47:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:06,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:47:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:06,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:47:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:06,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:47:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:06,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 20:47:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:06,794 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:47:06,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:47:06,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414447591] [2024-10-14 20:47:06,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414447591] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:47:06,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102842663] [2024-10-14 20:47:06,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:06,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:06,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:47:06,797 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:47:06,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 20:47:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:06,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:47:06,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:47:06,888 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:47:06,888 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:47:06,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102842663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:47:06,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:47:06,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-14 20:47:06,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149998377] [2024-10-14 20:47:06,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:47:06,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:47:06,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:47:06,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:47:06,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:47:06,890 INFO L87 Difference]: Start difference. First operand 148 states and 165 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:47:06,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:06,911 INFO L93 Difference]: Finished difference Result 150 states and 165 transitions. [2024-10-14 20:47:06,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:47:06,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 57 [2024-10-14 20:47:06,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:06,913 INFO L225 Difference]: With dead ends: 150 [2024-10-14 20:47:06,913 INFO L226 Difference]: Without dead ends: 149 [2024-10-14 20:47:06,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:47:06,914 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 21 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:06,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 122 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:47:06,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-10-14 20:47:06,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2024-10-14 20:47:06,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 123 states have (on average 1.2195121951219512) internal successors, (150), 135 states have internal predecessors, (150), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:47:06,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 162 transitions. [2024-10-14 20:47:06,921 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 162 transitions. Word has length 57 [2024-10-14 20:47:06,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:06,922 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 162 transitions. [2024-10-14 20:47:06,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:47:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 162 transitions. [2024-10-14 20:47:06,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 20:47:06,923 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:06,923 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-10-14 20:47:06,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-14 20:47:07,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:07,124 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:07,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:07,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1029064698, now seen corresponding path program 1 times [2024-10-14 20:47:07,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:47:07,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518162458] [2024-10-14 20:47:07,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:07,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:47:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:07,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:47:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:07,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:47:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:07,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:47:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:07,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 20:47:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:07,172 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:47:07,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:47:07,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518162458] [2024-10-14 20:47:07,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518162458] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:47:07,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877383081] [2024-10-14 20:47:07,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:07,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:07,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:47:07,175 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:47:07,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-14 20:47:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:07,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:47:07,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:47:07,262 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:47:07,262 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:47:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:47:07,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877383081] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:47:07,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:47:07,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-14 20:47:07,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91182628] [2024-10-14 20:47:07,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:47:07,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:47:07,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:47:07,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:47:07,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:47:07,335 INFO L87 Difference]: Start difference. First operand 147 states and 162 transitions. Second operand has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-14 20:47:07,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:07,368 INFO L93 Difference]: Finished difference Result 173 states and 182 transitions. [2024-10-14 20:47:07,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:47:07,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 58 [2024-10-14 20:47:07,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:07,371 INFO L225 Difference]: With dead ends: 173 [2024-10-14 20:47:07,371 INFO L226 Difference]: Without dead ends: 172 [2024-10-14 20:47:07,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:47:07,372 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 24 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:07,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 200 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:47:07,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-14 20:47:07,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 159. [2024-10-14 20:47:07,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 134 states have (on average 1.2313432835820894) internal successors, (165), 146 states have internal predecessors, (165), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 20:47:07,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 179 transitions. [2024-10-14 20:47:07,387 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 179 transitions. Word has length 58 [2024-10-14 20:47:07,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:07,387 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 179 transitions. [2024-10-14 20:47:07,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-14 20:47:07,387 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 179 transitions. [2024-10-14 20:47:07,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 20:47:07,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:07,388 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:47:07,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-14 20:47:07,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:47:07,589 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:07,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:07,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1349924572, now seen corresponding path program 1 times [2024-10-14 20:47:07,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:47:07,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740891911] [2024-10-14 20:47:07,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:07,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:47:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:07,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:47:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:07,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:47:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:07,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 20:47:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:47:07,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 20:47:07,827 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig$NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:222) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-10-14 20:47:07,830 INFO L158 Benchmark]: Toolchain (without parser) took 15187.83ms. Allocated memory was 209.7MB in the beginning and 251.7MB in the end (delta: 41.9MB). Free memory was 153.4MB in the beginning and 218.2MB in the end (delta: -64.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:47:07,831 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory was 116.7MB in the beginning and 116.4MB in the end (delta: 353.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:47:07,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.12ms. Allocated memory is still 209.7MB. Free memory was 153.4MB in the beginning and 142.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 20:47:07,831 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.31ms. Allocated memory is still 209.7MB. Free memory was 142.0MB in the beginning and 140.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:47:07,831 INFO L158 Benchmark]: Boogie Preprocessor took 59.00ms. Allocated memory is still 209.7MB. Free memory was 140.0MB in the beginning and 138.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:47:07,831 INFO L158 Benchmark]: RCFGBuilder took 555.46ms. Allocated memory is still 209.7MB. Free memory was 138.8MB in the beginning and 122.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-14 20:47:07,832 INFO L158 Benchmark]: TraceAbstraction took 14261.09ms. Allocated memory was 209.7MB in the beginning and 251.7MB in the end (delta: 41.9MB). Free memory was 121.7MB in the beginning and 218.2MB in the end (delta: -96.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:47:07,834 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory was 116.7MB in the beginning and 116.4MB in the end (delta: 353.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.12ms. Allocated memory is still 209.7MB. Free memory was 153.4MB in the beginning and 142.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.31ms. Allocated memory is still 209.7MB. Free memory was 142.0MB in the beginning and 140.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.00ms. Allocated memory is still 209.7MB. Free memory was 140.0MB in the beginning and 138.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 555.46ms. Allocated memory is still 209.7MB. Free memory was 138.8MB in the beginning and 122.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14261.09ms. Allocated memory was 209.7MB in the beginning and 251.7MB in the end (delta: 41.9MB). Free memory was 121.7MB in the beginning and 218.2MB in the end (delta: -96.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-14 20:47:07,850 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/nla-digbench-scaling/geo1-ll2_unwindbound100.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.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 b61db512cc77bff784b3cdbd5d852c5dc364bdc7776dcbb3369c7c75ae1fb315 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:47:10,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:47:10,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-10-14 20:47:10,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:47:10,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:47:10,143 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:47:10,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:47:10,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:47:10,145 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:47:10,145 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:47:10,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:47:10,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:47:10,148 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:47:10,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:47:10,148 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:47:10,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:47:10,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:47:10,149 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:47:10,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:47:10,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:47:10,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:47:10,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:47:10,154 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:47:10,154 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 20:47:10,154 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 20:47:10,155 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:47:10,155 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:47:10,155 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 20:47:10,155 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:47:10,155 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:47:10,156 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:47:10,156 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:47:10,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:47:10,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:47:10,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:47:10,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:47:10,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:47:10,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:47:10,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:47:10,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:47:10,160 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 20:47:10,161 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 20:47:10,161 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:47:10,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:47:10,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:47:10,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:47:10,162 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 20:47:10,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b61db512cc77bff784b3cdbd5d852c5dc364bdc7776dcbb3369c7c75ae1fb315 [2024-10-14 20:47:10,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:47:10,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:47:10,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:47:10,490 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:47:10,490 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:47:10,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound100.c [2024-10-14 20:47:12,054 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:47:12,247 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:47:12,249 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound100.c [2024-10-14 20:47:12,263 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb3a32c2/e17a53b9b8354b3f800998ce125a205b/FLAG974b28f0a [2024-10-14 20:47:12,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb3a32c2/e17a53b9b8354b3f800998ce125a205b [2024-10-14 20:47:12,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:47:12,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:47:12,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:47:12,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:47:12,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:47:12,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:12,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@776e1c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12, skipping insertion in model container [2024-10-14 20:47:12,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:12,658 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:47:12,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:47:12,854 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:47:12,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:47:12,922 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:47:12,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12 WrapperNode [2024-10-14 20:47:12,923 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:47:12,924 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:47:12,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:47:12,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:47:12,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:12,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:12,968 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-10-14 20:47:12,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:47:12,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:47:12,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:47:12,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:47:12,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:12,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:12,989 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:13,012 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]. [2024-10-14 20:47:13,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:13,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:13,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:13,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:13,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:13,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:13,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:47:13,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:47:13,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:47:13,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:47:13,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (1/1) ... [2024-10-14 20:47:13,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:47:13,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:47:13,063 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) [2024-10-14 20:47:13,067 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 [2024-10-14 20:47:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:47:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 20:47:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 20:47:13,106 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 20:47:13,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:47:13,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:47:13,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:47:13,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:47:13,188 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:47:13,192 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:47:18,341 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-10-14 20:47:18,342 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:47:18,366 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:47:18,366 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:47:18,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:47:18 BoogieIcfgContainer [2024-10-14 20:47:18,369 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:47:18,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:47:18,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:47:18,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:47:18,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:47:12" (1/3) ... [2024-10-14 20:47:18,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7cc864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:47:18, skipping insertion in model container [2024-10-14 20:47:18,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:47:12" (2/3) ... [2024-10-14 20:47:18,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7cc864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:47:18, skipping insertion in model container [2024-10-14 20:47:18,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:47:18" (3/3) ... [2024-10-14 20:47:18,377 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll2_unwindbound100.c [2024-10-14 20:47:18,393 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:47:18,393 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-14 20:47:18,448 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:47:18,455 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;@39b84352, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:47:18,455 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-14 20:47:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 64 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:47:18,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:47:18,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:18,467 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:47:18,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:18,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:18,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2005083564, now seen corresponding path program 1 times [2024-10-14 20:47:18,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 20:47:18,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837153466] [2024-10-14 20:47:18,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:18,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 20:47:18,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 20:47:18,494 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 20:47:18,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-14 20:47:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:18,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 20:47:18,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:47:18,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:18,590 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:47:18,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 20:47:18,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837153466] [2024-10-14 20:47:18,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837153466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:47:18,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:47:18,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 20:47:18,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100384243] [2024-10-14 20:47:18,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:47:18,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:47:18,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 20:47:18,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:47:18,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:47:18,627 INFO L87 Difference]: Start difference. First operand has 71 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 64 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 1 states have (on average 7.0) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:47:18,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:18,666 INFO L93 Difference]: Finished difference Result 134 states and 155 transitions. [2024-10-14 20:47:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:47:18,669 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 7.0) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-14 20:47:18,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:18,676 INFO L225 Difference]: With dead ends: 134 [2024-10-14 20:47:18,677 INFO L226 Difference]: Without dead ends: 62 [2024-10-14 20:47:18,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:47:18,683 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:18,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:47:18,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-14 20:47:18,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-14 20:47:18,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 56 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:47:18,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2024-10-14 20:47:18,726 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 14 [2024-10-14 20:47:18,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:18,727 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2024-10-14 20:47:18,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 7.0) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:47:18,727 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2024-10-14 20:47:18,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 20:47:18,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:18,729 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:47:18,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-14 20:47:18,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 20:47:18,932 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:18,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:18,933 INFO L85 PathProgramCache]: Analyzing trace with hash 5124504, now seen corresponding path program 1 times [2024-10-14 20:47:18,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 20:47:18,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893380087] [2024-10-14 20:47:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:18,934 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 20:47:18,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 20:47:18,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 20:47:18,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-14 20:47:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:18,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:47:18,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:47:19,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:19,142 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:47:19,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 20:47:19,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893380087] [2024-10-14 20:47:19,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893380087] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:47:19,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:47:19,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:47:19,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197534592] [2024-10-14 20:47:19,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:47:19,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:47:19,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 20:47:19,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:47:19,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:47:19,147 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:47:19,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:47:19,238 INFO L93 Difference]: Finished difference Result 81 states and 83 transitions. [2024-10-14 20:47:19,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:47:19,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-10-14 20:47:19,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:47:19,241 INFO L225 Difference]: With dead ends: 81 [2024-10-14 20:47:19,241 INFO L226 Difference]: Without dead ends: 66 [2024-10-14 20:47:19,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:47:19,243 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 3 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:47:19,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 168 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:47:19,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-14 20:47:19,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-10-14 20:47:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 60 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:47:19,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2024-10-14 20:47:19,253 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 15 [2024-10-14 20:47:19,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:47:19,255 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2024-10-14 20:47:19,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:47:19,255 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2024-10-14 20:47:19,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 20:47:19,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:47:19,256 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:47:19,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-14 20:47:19,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 20:47:19,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:47:19,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:47:19,458 INFO L85 PathProgramCache]: Analyzing trace with hash 629682618, now seen corresponding path program 1 times [2024-10-14 20:47:19,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 20:47:19,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497166680] [2024-10-14 20:47:19,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:47:19,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 20:47:19,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 20:47:19,462 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 20:47:19,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-14 20:47:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:47:19,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:47:19,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:47:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:47:19,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:47:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:47:23,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 20:47:23,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497166680] [2024-10-14 20:47:23,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497166680] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 20:47:23,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:47:23,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-14 20:47:23,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237064923] [2024-10-14 20:47:23,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:47:23,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:47:23,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 20:47:23,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:47:23,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:47:23,773 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:47:27,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 20:47:28,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 20:47:40,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 20:47:44,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 20:47:47,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 20:47:51,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 20:47:56,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 20:48:04,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 20:48:06,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 20:48:11,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 20:48:13,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 20:48:13,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:48:13,658 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2024-10-14 20:48:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:48:13,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-10-14 20:48:13,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:48:13,700 INFO L225 Difference]: With dead ends: 72 [2024-10-14 20:48:13,700 INFO L226 Difference]: Without dead ends: 70 [2024-10-14 20:48:13,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:48:13,702 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 19 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.9s IncrementalHoareTripleChecker+Time [2024-10-14 20:48:13,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 52 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 4 Unknown, 0 Unchecked, 49.9s Time] [2024-10-14 20:48:13,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-14 20:48:13,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2024-10-14 20:48:13,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 60 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:48:13,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2024-10-14 20:48:13,711 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 17 [2024-10-14 20:48:13,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:48:13,711 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2024-10-14 20:48:13,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:48:13,712 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2024-10-14 20:48:13,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-14 20:48:13,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:48:13,713 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:48:13,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-14 20:48:13,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 20:48:13,914 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-14 20:48:13,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:48:13,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1954675269, now seen corresponding path program 1 times [2024-10-14 20:48:13,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 20:48:13,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369562412] [2024-10-14 20:48:13,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:48:13,915 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 20:48:13,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 20:48:13,918 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 20:48:13,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-14 20:48:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:48:13,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:48:13,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:48:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:48:14,434 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:48:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:48:21,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 20:48:21,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369562412] [2024-10-14 20:48:21,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369562412] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 20:48:21,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:48:21,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-14 20:48:21,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509838750] [2024-10-14 20:48:21,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:48:21,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:48:21,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 20:48:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:48:21,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:48:21,251 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:48:25,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []