./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/hard-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.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 a93c350e5795e32421c3bef9d7525c3fd53f570f971d574def19132b3d6f08b8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 13:41:16,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 13:41:16,730 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 13:41:16,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 13:41:16,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 13:41:16,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 13:41:16,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 13:41:16,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 13:41:16,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 13:41:16,779 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 13:41:16,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 13:41:16,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 13:41:16,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 13:41:16,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 13:41:16,782 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 13:41:16,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 13:41:16,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 13:41:16,783 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 13:41:16,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 13:41:16,784 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 13:41:16,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 13:41:16,786 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 13:41:16,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 13:41:16,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 13:41:16,787 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 13:41:16,787 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 13:41:16,787 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 13:41:16,787 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 13:41:16,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 13:41:16,788 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 13:41:16,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 13:41:16,789 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 13:41:16,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 13:41:16,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 13:41:16,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:41:16,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 13:41:16,790 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 13:41:16,790 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 13:41:16,791 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 13:41:16,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 13:41:16,791 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 13:41:16,792 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 13:41:16,792 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 13:41:16,792 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 13:41:16,792 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a93c350e5795e32421c3bef9d7525c3fd53f570f971d574def19132b3d6f08b8 [2024-10-13 13:41:17,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 13:41:17,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 13:41:17,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 13:41:17,080 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 13:41:17,080 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 13:41:17,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c [2024-10-13 13:41:18,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 13:41:18,677 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 13:41:18,678 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c [2024-10-13 13:41:18,693 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fdb880fa/f499fba92bc247c684c9d0db60f6f8e9/FLAG9b02c2d19 [2024-10-13 13:41:18,715 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fdb880fa/f499fba92bc247c684c9d0db60f6f8e9 [2024-10-13 13:41:18,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 13:41:18,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 13:41:18,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 13:41:18,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 13:41:18,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 13:41:18,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:41:18" (1/1) ... [2024-10-13 13:41:18,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184285f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:18, skipping insertion in model container [2024-10-13 13:41:18,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:41:18" (1/1) ... [2024-10-13 13:41:18,757 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 13:41:18,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:41:18,978 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 13:41:19,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:41:19,020 INFO L204 MainTranslator]: Completed translation [2024-10-13 13:41:19,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19 WrapperNode [2024-10-13 13:41:19,021 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 13:41:19,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 13:41:19,022 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 13:41:19,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 13:41:19,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,069 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-10-13 13:41:19,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 13:41:19,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 13:41:19,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 13:41:19,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 13:41:19,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,106 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 13:41:19,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,110 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,117 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 13:41:19,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 13:41:19,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 13:41:19,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 13:41:19,125 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (1/1) ... [2024-10-13 13:41:19,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:41:19,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:19,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 13:41:19,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 13:41:19,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 13:41:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 13:41:19,214 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 13:41:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 13:41:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 13:41:19,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 13:41:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 13:41:19,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 13:41:19,279 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 13:41:19,283 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 13:41:19,592 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-10-13 13:41:19,593 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 13:41:19,628 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 13:41:19,629 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 13:41:19,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:41:19 BoogieIcfgContainer [2024-10-13 13:41:19,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 13:41:19,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 13:41:19,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 13:41:19,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 13:41:19,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:41:18" (1/3) ... [2024-10-13 13:41:19,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193a5b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:41:19, skipping insertion in model container [2024-10-13 13:41:19,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:41:19" (2/3) ... [2024-10-13 13:41:19,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193a5b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:41:19, skipping insertion in model container [2024-10-13 13:41:19,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:41:19" (3/3) ... [2024-10-13 13:41:19,639 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound5.c [2024-10-13 13:41:19,658 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 13:41:19,658 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-10-13 13:41:19,735 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 13:41:19,741 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;@76c5806a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 13:41:19,742 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-10-13 13:41:19,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 39 states have (on average 1.8461538461538463) internal successors, (72), 63 states have internal predecessors, (72), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 13:41:19,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-13 13:41:19,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:19,753 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:19,753 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:19,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:19,760 INFO L85 PathProgramCache]: Analyzing trace with hash -86371443, now seen corresponding path program 1 times [2024-10-13 13:41:19,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:19,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329690162] [2024-10-13 13:41:19,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:19,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:19,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:19,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:19,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:19,971 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:41:19,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:19,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329690162] [2024-10-13 13:41:19,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329690162] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:19,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:19,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:41:19,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740223239] [2024-10-13 13:41:19,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:19,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 13:41:19,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:20,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 13:41:20,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 13:41:20,008 INFO L87 Difference]: Start difference. First operand has 76 states, 39 states have (on average 1.8461538461538463) internal successors, (72), 63 states have internal predecessors, (72), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:41:20,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:20,046 INFO L93 Difference]: Finished difference Result 150 states and 191 transitions. [2024-10-13 13:41:20,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 13:41:20,049 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-10-13 13:41:20,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:20,055 INFO L225 Difference]: With dead ends: 150 [2024-10-13 13:41:20,055 INFO L226 Difference]: Without dead ends: 72 [2024-10-13 13:41:20,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 13:41:20,063 INFO L432 NwaCegarLoop]: 84 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, 84 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 [2024-10-13 13:41:20,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:41:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-13 13:41:20,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-10-13 13:41:20,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 61 states have internal predecessors, (64), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 13:41:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2024-10-13 13:41:20,100 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 21 [2024-10-13 13:41:20,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:20,100 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2024-10-13 13:41:20,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:41:20,101 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2024-10-13 13:41:20,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-13 13:41:20,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:20,102 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:20,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 13:41:20,103 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:20,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:20,104 INFO L85 PathProgramCache]: Analyzing trace with hash 140634780, now seen corresponding path program 1 times [2024-10-13 13:41:20,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:20,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66873232] [2024-10-13 13:41:20,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:20,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:20,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928225692] [2024-10-13 13:41:20,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:20,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:20,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:20,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:20,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 13:41:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:20,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 13:41:20,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:20,291 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-13 13:41:20,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:41:20,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:20,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66873232] [2024-10-13 13:41:20,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:20,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928225692] [2024-10-13 13:41:20,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928225692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:20,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:20,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:41:20,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920363829] [2024-10-13 13:41:20,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:20,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:41:20,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:20,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:41:20,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:20,297 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-13 13:41:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:20,373 INFO L93 Difference]: Finished difference Result 148 states and 167 transitions. [2024-10-13 13:41:20,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:41:20,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2024-10-13 13:41:20,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:20,379 INFO L225 Difference]: With dead ends: 148 [2024-10-13 13:41:20,379 INFO L226 Difference]: Without dead ends: 99 [2024-10-13 13:41:20,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:20,384 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 20 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:20,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 128 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:41:20,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-13 13:41:20,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2024-10-13 13:41:20,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 77 states have internal predecessors, (87), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 13:41:20,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2024-10-13 13:41:20,401 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 30 [2024-10-13 13:41:20,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:20,402 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2024-10-13 13:41:20,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-13 13:41:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2024-10-13 13:41:20,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-13 13:41:20,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:20,406 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:20,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 13:41:20,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:20,611 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:20,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:20,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1677847877, now seen corresponding path program 1 times [2024-10-13 13:41:20,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:20,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578656761] [2024-10-13 13:41:20,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:20,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:20,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:20,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:20,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:20,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:20,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:20,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:41:20,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:20,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578656761] [2024-10-13 13:41:20,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578656761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:20,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:20,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:41:20,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052955464] [2024-10-13 13:41:20,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:20,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:41:20,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:20,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:41:20,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:20,857 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 13:41:20,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:20,983 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2024-10-13 13:41:20,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:41:20,984 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2024-10-13 13:41:20,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:20,985 INFO L225 Difference]: With dead ends: 93 [2024-10-13 13:41:20,985 INFO L226 Difference]: Without dead ends: 91 [2024-10-13 13:41:20,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:20,987 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 39 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:20,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 74 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:41:20,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-13 13:41:21,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-10-13 13:41:21,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 54 states have (on average 1.5555555555555556) internal successors, (84), 75 states have internal predecessors, (84), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 13:41:21,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 110 transitions. [2024-10-13 13:41:21,013 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 110 transitions. Word has length 38 [2024-10-13 13:41:21,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:21,014 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 110 transitions. [2024-10-13 13:41:21,014 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 13:41:21,014 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2024-10-13 13:41:21,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-13 13:41:21,015 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:21,015 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:21,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 13:41:21,017 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:21,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:21,017 INFO L85 PathProgramCache]: Analyzing trace with hash 473675319, now seen corresponding path program 1 times [2024-10-13 13:41:21,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:21,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472541894] [2024-10-13 13:41:21,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:21,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:21,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [98368233] [2024-10-13 13:41:21,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:21,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:21,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:21,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:21,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 13:41:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 13:41:21,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:21,136 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:41:21,136 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:41:21,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:21,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472541894] [2024-10-13 13:41:21,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:21,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98368233] [2024-10-13 13:41:21,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98368233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:21,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:21,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:41:21,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727824527] [2024-10-13 13:41:21,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:21,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:41:21,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:21,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:41:21,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:21,143 INFO L87 Difference]: Start difference. First operand 91 states and 110 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 13:41:21,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:21,209 INFO L93 Difference]: Finished difference Result 125 states and 153 transitions. [2024-10-13 13:41:21,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:41:21,209 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-10-13 13:41:21,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:21,211 INFO L225 Difference]: With dead ends: 125 [2024-10-13 13:41:21,211 INFO L226 Difference]: Without dead ends: 121 [2024-10-13 13:41:21,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:21,212 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 37 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:21,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 102 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:41:21,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-13 13:41:21,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 108. [2024-10-13 13:41:21,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.536231884057971) internal successors, (106), 90 states have internal predecessors, (106), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-13 13:41:21,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 136 transitions. [2024-10-13 13:41:21,225 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 136 transitions. Word has length 39 [2024-10-13 13:41:21,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:21,225 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 136 transitions. [2024-10-13 13:41:21,225 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 13:41:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 136 transitions. [2024-10-13 13:41:21,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-13 13:41:21,226 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:21,227 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:21,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 13:41:21,430 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 [2024-10-13 13:41:21,432 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:21,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:21,432 INFO L85 PathProgramCache]: Analyzing trace with hash 473676697, now seen corresponding path program 1 times [2024-10-13 13:41:21,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:21,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784901424] [2024-10-13 13:41:21,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:21,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,574 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:41:21,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:21,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784901424] [2024-10-13 13:41:21,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784901424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:21,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:21,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:41:21,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237774620] [2024-10-13 13:41:21,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:21,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:41:21,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:21,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:41:21,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:21,580 INFO L87 Difference]: Start difference. First operand 108 states and 136 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 13:41:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:21,633 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2024-10-13 13:41:21,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:41:21,633 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-10-13 13:41:21,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:21,635 INFO L225 Difference]: With dead ends: 115 [2024-10-13 13:41:21,635 INFO L226 Difference]: Without dead ends: 114 [2024-10-13 13:41:21,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:21,636 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 14 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:21,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 123 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:41:21,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-13 13:41:21,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 108. [2024-10-13 13:41:21,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.5217391304347827) internal successors, (105), 90 states have internal predecessors, (105), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-13 13:41:21,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2024-10-13 13:41:21,652 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 39 [2024-10-13 13:41:21,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:21,653 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2024-10-13 13:41:21,653 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 13:41:21,653 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2024-10-13 13:41:21,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-13 13:41:21,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:21,654 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:21,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 13:41:21,655 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:21,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:21,655 INFO L85 PathProgramCache]: Analyzing trace with hash -64549223, now seen corresponding path program 1 times [2024-10-13 13:41:21,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:21,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561345863] [2024-10-13 13:41:21,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:21,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:41:21,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:21,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561345863] [2024-10-13 13:41:21,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561345863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:21,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:21,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:41:21,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438329480] [2024-10-13 13:41:21,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:21,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:41:21,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:21,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:41:21,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:41:21,866 INFO L87 Difference]: Start difference. First operand 108 states and 135 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 13:41:22,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:22,102 INFO L93 Difference]: Finished difference Result 123 states and 149 transitions. [2024-10-13 13:41:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:41:22,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2024-10-13 13:41:22,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:22,103 INFO L225 Difference]: With dead ends: 123 [2024-10-13 13:41:22,103 INFO L226 Difference]: Without dead ends: 122 [2024-10-13 13:41:22,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:41:22,104 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 85 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:22,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 104 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:41:22,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-13 13:41:22,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 112. [2024-10-13 13:41:22,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 94 states have internal predecessors, (109), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-13 13:41:22,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2024-10-13 13:41:22,124 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 41 [2024-10-13 13:41:22,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:22,125 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2024-10-13 13:41:22,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 13:41:22,125 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2024-10-13 13:41:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 13:41:22,126 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:22,126 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:22,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 13:41:22,127 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:22,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:22,127 INFO L85 PathProgramCache]: Analyzing trace with hash -2001025828, now seen corresponding path program 1 times [2024-10-13 13:41:22,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:22,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621533975] [2024-10-13 13:41:22,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:22,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:22,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1065942052] [2024-10-13 13:41:22,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:22,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:22,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:22,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:22,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 13:41:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:41:22,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:22,351 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:41:22,352 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:41:22,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:22,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621533975] [2024-10-13 13:41:22,352 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:22,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065942052] [2024-10-13 13:41:22,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065942052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:22,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:22,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:41:22,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692601540] [2024-10-13 13:41:22,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:22,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:41:22,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:22,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:41:22,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:22,353 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 13:41:22,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:22,469 INFO L93 Difference]: Finished difference Result 123 states and 146 transitions. [2024-10-13 13:41:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:41:22,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-10-13 13:41:22,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:22,470 INFO L225 Difference]: With dead ends: 123 [2024-10-13 13:41:22,470 INFO L226 Difference]: Without dead ends: 120 [2024-10-13 13:41:22,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:22,471 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:22,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 95 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:41:22,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-13 13:41:22,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 113. [2024-10-13 13:41:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 74 states have (on average 1.4594594594594594) internal successors, (108), 95 states have internal predecessors, (108), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-13 13:41:22,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 138 transitions. [2024-10-13 13:41:22,500 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 138 transitions. Word has length 42 [2024-10-13 13:41:22,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:22,501 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 138 transitions. [2024-10-13 13:41:22,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 13:41:22,501 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 138 transitions. [2024-10-13 13:41:22,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 13:41:22,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:22,506 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:22,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 13:41:22,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:22,711 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:22,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:22,711 INFO L85 PathProgramCache]: Analyzing trace with hash -573724229, now seen corresponding path program 1 times [2024-10-13 13:41:22,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:22,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046668087] [2024-10-13 13:41:22,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:22,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:22,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039865183] [2024-10-13 13:41:22,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:22,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:22,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:22,739 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:22,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 13:41:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:22,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:41:22,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:22,982 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-13 13:41:22,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:23,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:23,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046668087] [2024-10-13 13:41:23,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:23,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039865183] [2024-10-13 13:41:23,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039865183] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:23,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:23,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-13 13:41:23,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961648634] [2024-10-13 13:41:23,155 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:23,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:41:23,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:23,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:41:23,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:41:23,156 INFO L87 Difference]: Start difference. First operand 113 states and 138 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-13 13:41:23,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:23,334 INFO L93 Difference]: Finished difference Result 127 states and 156 transitions. [2024-10-13 13:41:23,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:41:23,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 53 [2024-10-13 13:41:23,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:23,336 INFO L225 Difference]: With dead ends: 127 [2024-10-13 13:41:23,336 INFO L226 Difference]: Without dead ends: 119 [2024-10-13 13:41:23,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:41:23,337 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 48 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:23,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 245 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:41:23,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-13 13:41:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-10-13 13:41:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 82 states have (on average 1.353658536585366) internal successors, (111), 99 states have internal predecessors, (111), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 13:41:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 145 transitions. [2024-10-13 13:41:23,353 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 145 transitions. Word has length 53 [2024-10-13 13:41:23,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:23,353 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 145 transitions. [2024-10-13 13:41:23,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-13 13:41:23,353 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 145 transitions. [2024-10-13 13:41:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-13 13:41:23,354 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:23,355 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:23,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 13:41:23,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:23,555 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:23,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash -605581863, now seen corresponding path program 1 times [2024-10-13 13:41:23,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:23,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684397194] [2024-10-13 13:41:23,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:23,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:23,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803389371] [2024-10-13 13:41:23,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:23,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:23,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:23,572 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:23,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 13:41:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:23,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:41:23,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:23,771 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-13 13:41:23,771 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:23,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:23,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684397194] [2024-10-13 13:41:23,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:23,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803389371] [2024-10-13 13:41:23,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803389371] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:23,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:23,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-13 13:41:23,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345949983] [2024-10-13 13:41:23,902 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:23,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:41:23,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:23,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:41:23,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:41:23,903 INFO L87 Difference]: Start difference. First operand 119 states and 145 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-13 13:41:24,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:24,096 INFO L93 Difference]: Finished difference Result 191 states and 244 transitions. [2024-10-13 13:41:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:41:24,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 54 [2024-10-13 13:41:24,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:24,099 INFO L225 Difference]: With dead ends: 191 [2024-10-13 13:41:24,099 INFO L226 Difference]: Without dead ends: 187 [2024-10-13 13:41:24,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:41:24,100 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 103 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:24,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 191 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:41:24,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-13 13:41:24,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 178. [2024-10-13 13:41:24,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 132 states have (on average 1.356060606060606) internal successors, (179), 149 states have internal predecessors, (179), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-13 13:41:24,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 231 transitions. [2024-10-13 13:41:24,121 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 231 transitions. Word has length 54 [2024-10-13 13:41:24,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:24,121 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 231 transitions. [2024-10-13 13:41:24,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-13 13:41:24,122 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 231 transitions. [2024-10-13 13:41:24,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-13 13:41:24,122 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:24,123 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:24,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 13:41:24,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:24,327 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:24,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:24,327 INFO L85 PathProgramCache]: Analyzing trace with hash -415985539, now seen corresponding path program 1 times [2024-10-13 13:41:24,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:24,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030973965] [2024-10-13 13:41:24,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:24,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:24,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:24,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:24,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:24,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:24,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:24,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:24,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:24,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-13 13:41:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:24,482 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-13 13:41:24,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:24,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030973965] [2024-10-13 13:41:24,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030973965] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:24,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:24,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:41:24,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13970056] [2024-10-13 13:41:24,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:24,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:41:24,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:24,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:41:24,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:41:24,485 INFO L87 Difference]: Start difference. First operand 178 states and 231 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 13:41:24,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:24,944 INFO L93 Difference]: Finished difference Result 187 states and 240 transitions. [2024-10-13 13:41:24,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:41:24,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2024-10-13 13:41:24,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:24,946 INFO L225 Difference]: With dead ends: 187 [2024-10-13 13:41:24,946 INFO L226 Difference]: Without dead ends: 172 [2024-10-13 13:41:24,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:41:24,948 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 39 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:24,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 134 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:41:24,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-13 13:41:24,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 145. [2024-10-13 13:41:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 105 states have (on average 1.4095238095238096) internal successors, (148), 122 states have internal predecessors, (148), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-13 13:41:24,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 188 transitions. [2024-10-13 13:41:24,971 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 188 transitions. Word has length 58 [2024-10-13 13:41:24,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:24,972 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 188 transitions. [2024-10-13 13:41:24,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 13:41:24,972 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 188 transitions. [2024-10-13 13:41:24,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-13 13:41:24,975 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:24,975 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:24,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 13:41:24,976 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:24,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:24,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1887727782, now seen corresponding path program 1 times [2024-10-13 13:41:24,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:24,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380591613] [2024-10-13 13:41:24,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:24,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:25,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:25,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:25,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:25,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:25,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:25,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:25,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:25,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:25,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 13:41:25,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:25,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380591613] [2024-10-13 13:41:25,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380591613] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:25,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295326551] [2024-10-13 13:41:25,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:25,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:25,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:25,079 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) [2024-10-13 13:41:25,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 13:41:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:25,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 13:41:25,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 13:41:25,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:25,234 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 13:41:25,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295326551] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:41:25,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:41:25,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-13 13:41:25,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299243932] [2024-10-13 13:41:25,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:25,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 13:41:25,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:25,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 13:41:25,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:41:25,236 INFO L87 Difference]: Start difference. First operand 145 states and 188 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-13 13:41:25,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:25,397 INFO L93 Difference]: Finished difference Result 255 states and 327 transitions. [2024-10-13 13:41:25,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 13:41:25,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 62 [2024-10-13 13:41:25,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:25,399 INFO L225 Difference]: With dead ends: 255 [2024-10-13 13:41:25,400 INFO L226 Difference]: Without dead ends: 253 [2024-10-13 13:41:25,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:41:25,400 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 129 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:25,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 207 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:41:25,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-10-13 13:41:25,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 203. [2024-10-13 13:41:25,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 153 states have (on average 1.4052287581699345) internal successors, (215), 170 states have internal predecessors, (215), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-13 13:41:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2024-10-13 13:41:25,423 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 62 [2024-10-13 13:41:25,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:25,424 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2024-10-13 13:41:25,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-13 13:41:25,424 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2024-10-13 13:41:25,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-13 13:41:25,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:25,425 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:25,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 13:41:25,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:25,630 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:25,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:25,631 INFO L85 PathProgramCache]: Analyzing trace with hash -341860360, now seen corresponding path program 2 times [2024-10-13 13:41:25,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:25,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830708656] [2024-10-13 13:41:25,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:25,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:25,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821608234] [2024-10-13 13:41:25,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:41:25,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:25,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:25,648 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) [2024-10-13 13:41:25,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 13:41:25,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:41:25,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:41:25,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 13:41:25,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:25,961 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 13:41:25,961 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:26,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:26,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830708656] [2024-10-13 13:41:26,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:26,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821608234] [2024-10-13 13:41:26,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821608234] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:26,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:26,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-10-13 13:41:26,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608979846] [2024-10-13 13:41:26,118 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:26,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 13:41:26,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:26,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 13:41:26,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:41:26,119 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-13 13:41:26,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:26,614 INFO L93 Difference]: Finished difference Result 273 states and 366 transitions. [2024-10-13 13:41:26,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 13:41:26,615 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 77 [2024-10-13 13:41:26,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:26,616 INFO L225 Difference]: With dead ends: 273 [2024-10-13 13:41:26,617 INFO L226 Difference]: Without dead ends: 269 [2024-10-13 13:41:26,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-10-13 13:41:26,617 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 143 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:26,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 382 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:41:26,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-10-13 13:41:26,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 203. [2024-10-13 13:41:26,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 153 states have (on average 1.392156862745098) internal successors, (213), 170 states have internal predecessors, (213), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-13 13:41:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 273 transitions. [2024-10-13 13:41:26,643 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 273 transitions. Word has length 77 [2024-10-13 13:41:26,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:26,644 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 273 transitions. [2024-10-13 13:41:26,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-13 13:41:26,644 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 273 transitions. [2024-10-13 13:41:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-13 13:41:26,646 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:26,646 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:26,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 13:41:26,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:26,847 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:26,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:26,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1771595447, now seen corresponding path program 1 times [2024-10-13 13:41:26,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:26,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185161775] [2024-10-13 13:41:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:26,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:41:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:41:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:26,925 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-13 13:41:26,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:26,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185161775] [2024-10-13 13:41:26,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185161775] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:26,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:26,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:41:26,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793077719] [2024-10-13 13:41:26,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:26,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:41:26,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:26,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:41:26,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:26,927 INFO L87 Difference]: Start difference. First operand 203 states and 273 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-13 13:41:27,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:27,026 INFO L93 Difference]: Finished difference Result 203 states and 273 transitions. [2024-10-13 13:41:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:41:27,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 84 [2024-10-13 13:41:27,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:27,029 INFO L225 Difference]: With dead ends: 203 [2024-10-13 13:41:27,029 INFO L226 Difference]: Without dead ends: 202 [2024-10-13 13:41:27,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:41:27,030 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:27,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 113 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:41:27,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-10-13 13:41:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2024-10-13 13:41:27,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 153 states have (on average 1.3725490196078431) internal successors, (210), 169 states have internal predecessors, (210), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-13 13:41:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 270 transitions. [2024-10-13 13:41:27,056 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 270 transitions. Word has length 84 [2024-10-13 13:41:27,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:27,057 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 270 transitions. [2024-10-13 13:41:27,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-13 13:41:27,057 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 270 transitions. [2024-10-13 13:41:27,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-13 13:41:27,058 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:27,058 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:27,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 13:41:27,059 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:27,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:27,059 INFO L85 PathProgramCache]: Analyzing trace with hash 915116102, now seen corresponding path program 1 times [2024-10-13 13:41:27,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:27,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249315036] [2024-10-13 13:41:27,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:27,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:41:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:41:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-13 13:41:27,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:27,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249315036] [2024-10-13 13:41:27,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249315036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:27,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:27,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 13:41:27,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149425101] [2024-10-13 13:41:27,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:27,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 13:41:27,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:27,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 13:41:27,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:41:27,257 INFO L87 Difference]: Start difference. First operand 202 states and 270 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-13 13:41:27,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:27,625 INFO L93 Difference]: Finished difference Result 363 states and 505 transitions. [2024-10-13 13:41:27,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 13:41:27,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 85 [2024-10-13 13:41:27,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:27,627 INFO L225 Difference]: With dead ends: 363 [2024-10-13 13:41:27,627 INFO L226 Difference]: Without dead ends: 362 [2024-10-13 13:41:27,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:41:27,628 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 101 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:27,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 206 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:41:27,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-13 13:41:27,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 304. [2024-10-13 13:41:27,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 243 states have (on average 1.4362139917695473) internal successors, (349), 259 states have internal predecessors, (349), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 13:41:27,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 433 transitions. [2024-10-13 13:41:27,662 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 433 transitions. Word has length 85 [2024-10-13 13:41:27,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:27,662 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 433 transitions. [2024-10-13 13:41:27,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-13 13:41:27,662 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 433 transitions. [2024-10-13 13:41:27,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-13 13:41:27,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:27,663 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:27,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 13:41:27,664 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:27,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:27,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1696171797, now seen corresponding path program 1 times [2024-10-13 13:41:27,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:27,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642765686] [2024-10-13 13:41:27,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:27,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:41:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:41:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,874 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-13 13:41:27,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:27,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642765686] [2024-10-13 13:41:27,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642765686] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:27,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18852299] [2024-10-13 13:41:27,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:27,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:27,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:27,877 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) [2024-10-13 13:41:27,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 13:41:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:27,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:41:27,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:28,109 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-13 13:41:28,110 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:41:28,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18852299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:28,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:28,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-10-13 13:41:28,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552171301] [2024-10-13 13:41:28,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:28,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:41:28,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:28,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:41:28,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:41:28,111 INFO L87 Difference]: Start difference. First operand 304 states and 433 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 13:41:28,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:28,334 INFO L93 Difference]: Finished difference Result 363 states and 504 transitions. [2024-10-13 13:41:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:41:28,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2024-10-13 13:41:28,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:28,336 INFO L225 Difference]: With dead ends: 363 [2024-10-13 13:41:28,336 INFO L226 Difference]: Without dead ends: 362 [2024-10-13 13:41:28,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:41:28,337 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 46 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:28,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 134 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:41:28,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-13 13:41:28,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 313. [2024-10-13 13:41:28,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 252 states have (on average 1.4206349206349207) internal successors, (358), 268 states have internal predecessors, (358), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 13:41:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 442 transitions. [2024-10-13 13:41:28,374 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 442 transitions. Word has length 86 [2024-10-13 13:41:28,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:28,374 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 442 transitions. [2024-10-13 13:41:28,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 13:41:28,375 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 442 transitions. [2024-10-13 13:41:28,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-13 13:41:28,375 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:28,375 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:28,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 13:41:28,576 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 [2024-10-13 13:41:28,577 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:28,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:28,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1041718040, now seen corresponding path program 1 times [2024-10-13 13:41:28,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:28,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140121863] [2024-10-13 13:41:28,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:28,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:41:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:41:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,755 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-13 13:41:28,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:28,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140121863] [2024-10-13 13:41:28,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140121863] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:28,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081112019] [2024-10-13 13:41:28,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:28,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:28,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:28,758 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) [2024-10-13 13:41:28,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 13:41:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:28,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:41:28,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-13 13:41:28,927 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:41:28,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081112019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:28,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:28,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-13 13:41:28,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114787635] [2024-10-13 13:41:28,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:28,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:41:28,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:28,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:41:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:41:28,929 INFO L87 Difference]: Start difference. First operand 313 states and 442 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 13:41:29,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:29,101 INFO L93 Difference]: Finished difference Result 320 states and 448 transitions. [2024-10-13 13:41:29,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:41:29,102 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2024-10-13 13:41:29,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:29,104 INFO L225 Difference]: With dead ends: 320 [2024-10-13 13:41:29,104 INFO L226 Difference]: Without dead ends: 318 [2024-10-13 13:41:29,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:41:29,105 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 28 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:29,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 91 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:41:29,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-10-13 13:41:29,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 316. [2024-10-13 13:41:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 255 states have (on average 1.407843137254902) internal successors, (359), 271 states have internal predecessors, (359), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 13:41:29,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 443 transitions. [2024-10-13 13:41:29,138 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 443 transitions. Word has length 87 [2024-10-13 13:41:29,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:29,138 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 443 transitions. [2024-10-13 13:41:29,139 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 13:41:29,139 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 443 transitions. [2024-10-13 13:41:29,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-13 13:41:29,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:29,140 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:29,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-13 13:41:29,340 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 [2024-10-13 13:41:29,341 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:29,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:29,341 INFO L85 PathProgramCache]: Analyzing trace with hash -363654006, now seen corresponding path program 1 times [2024-10-13 13:41:29,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:29,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388875123] [2024-10-13 13:41:29,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:29,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:29,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334269534] [2024-10-13 13:41:29,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:29,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:29,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:29,373 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) [2024-10-13 13:41:29,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 13:41:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:29,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 13:41:29,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:29,983 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 13:41:29,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:30,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:30,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388875123] [2024-10-13 13:41:30,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:30,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334269534] [2024-10-13 13:41:30,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334269534] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:30,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:30,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-13 13:41:30,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481706000] [2024-10-13 13:41:30,428 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:30,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:41:30,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:30,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:41:30,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-13 13:41:30,430 INFO L87 Difference]: Start difference. First operand 316 states and 443 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-13 13:41:30,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:30,991 INFO L93 Difference]: Finished difference Result 393 states and 546 transitions. [2024-10-13 13:41:30,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 13:41:30,992 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 89 [2024-10-13 13:41:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:30,994 INFO L225 Difference]: With dead ends: 393 [2024-10-13 13:41:30,994 INFO L226 Difference]: Without dead ends: 392 [2024-10-13 13:41:30,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-13 13:41:30,995 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 121 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:30,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 282 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 13:41:30,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-10-13 13:41:31,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 365. [2024-10-13 13:41:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 298 states have (on average 1.3825503355704698) internal successors, (412), 314 states have internal predecessors, (412), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-13 13:41:31,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 508 transitions. [2024-10-13 13:41:31,034 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 508 transitions. Word has length 89 [2024-10-13 13:41:31,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:31,035 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 508 transitions. [2024-10-13 13:41:31,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-13 13:41:31,035 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 508 transitions. [2024-10-13 13:41:31,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-13 13:41:31,036 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:31,036 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:31,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-13 13:41:31,240 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 [2024-10-13 13:41:31,241 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:31,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:31,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1611627783, now seen corresponding path program 1 times [2024-10-13 13:41:31,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:31,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66670223] [2024-10-13 13:41:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:31,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:31,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43989410] [2024-10-13 13:41:31,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:31,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:31,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:31,261 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) [2024-10-13 13:41:31,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 13:41:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:31,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 13:41:31,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 13:41:31,829 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:32,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:32,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66670223] [2024-10-13 13:41:32,181 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:32,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43989410] [2024-10-13 13:41:32,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43989410] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:32,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:32,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-13 13:41:32,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068951020] [2024-10-13 13:41:32,182 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:32,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:41:32,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:32,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:41:32,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-10-13 13:41:32,184 INFO L87 Difference]: Start difference. First operand 365 states and 508 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-13 13:41:32,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:32,660 INFO L93 Difference]: Finished difference Result 428 states and 595 transitions. [2024-10-13 13:41:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 13:41:32,661 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 90 [2024-10-13 13:41:32,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:32,663 INFO L225 Difference]: With dead ends: 428 [2024-10-13 13:41:32,663 INFO L226 Difference]: Without dead ends: 427 [2024-10-13 13:41:32,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:41:32,664 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 94 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:32,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 304 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:41:32,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-10-13 13:41:32,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 414. [2024-10-13 13:41:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 341 states have (on average 1.3577712609970674) internal successors, (463), 357 states have internal predecessors, (463), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-13 13:41:32,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 571 transitions. [2024-10-13 13:41:32,703 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 571 transitions. Word has length 90 [2024-10-13 13:41:32,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:32,704 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 571 transitions. [2024-10-13 13:41:32,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-13 13:41:32,704 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 571 transitions. [2024-10-13 13:41:32,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-13 13:41:32,705 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:32,705 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:32,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-13 13:41:32,909 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 [2024-10-13 13:41:32,910 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:32,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:32,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1579146196, now seen corresponding path program 1 times [2024-10-13 13:41:32,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:32,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783166324] [2024-10-13 13:41:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:32,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:32,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:32,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:32,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:33,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:33,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:33,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:33,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:33,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:33,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:33,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:41:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:33,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:41:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-13 13:41:33,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:33,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783166324] [2024-10-13 13:41:33,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783166324] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:33,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:33,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:41:33,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351713683] [2024-10-13 13:41:33,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:33,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:41:33,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:33,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:41:33,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:41:33,019 INFO L87 Difference]: Start difference. First operand 414 states and 571 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-13 13:41:33,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:33,188 INFO L93 Difference]: Finished difference Result 414 states and 571 transitions. [2024-10-13 13:41:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:41:33,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 91 [2024-10-13 13:41:33,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:33,191 INFO L225 Difference]: With dead ends: 414 [2024-10-13 13:41:33,191 INFO L226 Difference]: Without dead ends: 413 [2024-10-13 13:41:33,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:41:33,192 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 71 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:33,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 111 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:41:33,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-10-13 13:41:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 401. [2024-10-13 13:41:33,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 329 states have (on average 1.3282674772036474) internal successors, (437), 344 states have internal predecessors, (437), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-13 13:41:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 545 transitions. [2024-10-13 13:41:33,231 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 545 transitions. Word has length 91 [2024-10-13 13:41:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:33,232 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 545 transitions. [2024-10-13 13:41:33,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-10-13 13:41:33,232 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 545 transitions. [2024-10-13 13:41:33,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-13 13:41:33,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:33,233 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:33,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 13:41:33,233 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:33,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:33,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1708891735, now seen corresponding path program 1 times [2024-10-13 13:41:33,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:33,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866630546] [2024-10-13 13:41:33,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:33,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:33,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831079995] [2024-10-13 13:41:33,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:33,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:33,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:33,257 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) [2024-10-13 13:41:33,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-13 13:41:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:33,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-13 13:41:33,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:34,087 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 13:41:34,087 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-13 13:41:36,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:36,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866630546] [2024-10-13 13:41:36,373 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:36,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831079995] [2024-10-13 13:41:36,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831079995] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:41:36,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 13:41:36,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-10-13 13:41:36,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571367943] [2024-10-13 13:41:36,374 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:36,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 13:41:36,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:36,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 13:41:36,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-10-13 13:41:36,375 INFO L87 Difference]: Start difference. First operand 401 states and 545 transitions. Second operand has 23 states, 22 states have (on average 3.727272727272727) internal successors, (82), 23 states have internal predecessors, (82), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-10-13 13:41:40,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:40,501 INFO L93 Difference]: Finished difference Result 563 states and 763 transitions. [2024-10-13 13:41:40,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-13 13:41:40,502 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.727272727272727) internal successors, (82), 23 states have internal predecessors, (82), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 92 [2024-10-13 13:41:40,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:40,504 INFO L225 Difference]: With dead ends: 563 [2024-10-13 13:41:40,504 INFO L226 Difference]: Without dead ends: 443 [2024-10-13 13:41:40,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=566, Invalid=1786, Unknown=0, NotChecked=0, Total=2352 [2024-10-13 13:41:40,506 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 390 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:40,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 292 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-13 13:41:40,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-13 13:41:40,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 399. [2024-10-13 13:41:40,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 331 states have (on average 1.3232628398791542) internal successors, (438), 346 states have internal predecessors, (438), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-13 13:41:40,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 538 transitions. [2024-10-13 13:41:40,556 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 538 transitions. Word has length 92 [2024-10-13 13:41:40,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:40,556 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 538 transitions. [2024-10-13 13:41:40,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.727272727272727) internal successors, (82), 23 states have internal predecessors, (82), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-10-13 13:41:40,557 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 538 transitions. [2024-10-13 13:41:40,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-13 13:41:40,558 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:40,558 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:40,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-13 13:41:40,762 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 [2024-10-13 13:41:40,763 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:40,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:40,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1294179065, now seen corresponding path program 3 times [2024-10-13 13:41:40,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:40,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102233708] [2024-10-13 13:41:40,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:40,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:40,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808592955] [2024-10-13 13:41:40,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 13:41:40,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:40,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:40,786 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) [2024-10-13 13:41:40,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-13 13:41:40,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-13 13:41:40,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:41:40,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-13 13:41:40,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:41,973 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 26 proven. 35 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-10-13 13:41:41,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:42,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:42,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102233708] [2024-10-13 13:41:42,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:42,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808592955] [2024-10-13 13:41:42,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808592955] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:42,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:42,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-13 13:41:42,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555758604] [2024-10-13 13:41:42,185 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:42,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:41:42,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:42,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:41:42,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=197, Unknown=1, NotChecked=0, Total=240 [2024-10-13 13:41:42,186 INFO L87 Difference]: Start difference. First operand 399 states and 538 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-13 13:41:43,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-13 13:41:48,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-13 13:41:50,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:50,479 INFO L93 Difference]: Finished difference Result 430 states and 575 transitions. [2024-10-13 13:41:50,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 13:41:50,480 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 100 [2024-10-13 13:41:50,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:50,481 INFO L225 Difference]: With dead ends: 430 [2024-10-13 13:41:50,482 INFO L226 Difference]: Without dead ends: 426 [2024-10-13 13:41:50,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=130, Invalid=415, Unknown=7, NotChecked=0, Total=552 [2024-10-13 13:41:50,483 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 222 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:50,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 242 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 537 Invalid, 2 Unknown, 0 Unchecked, 3.2s Time] [2024-10-13 13:41:50,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-10-13 13:41:50,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 394. [2024-10-13 13:41:50,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 329 states have (on average 1.2887537993920972) internal successors, (424), 341 states have internal predecessors, (424), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-13 13:41:50,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 524 transitions. [2024-10-13 13:41:50,535 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 524 transitions. Word has length 100 [2024-10-13 13:41:50,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:50,535 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 524 transitions. [2024-10-13 13:41:50,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-13 13:41:50,535 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 524 transitions. [2024-10-13 13:41:50,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-13 13:41:50,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:50,537 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2024-10-13 13:41:50,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-13 13:41:50,737 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 [2024-10-13 13:41:50,737 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:50,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2086556248, now seen corresponding path program 1 times [2024-10-13 13:41:50,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:50,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156861039] [2024-10-13 13:41:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:50,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404331127] [2024-10-13 13:41:50,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:50,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:50,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:50,765 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) [2024-10-13 13:41:50,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-13 13:41:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:50,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 13:41:50,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:51,148 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-13 13:41:51,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:51,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:51,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156861039] [2024-10-13 13:41:51,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:51,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404331127] [2024-10-13 13:41:51,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404331127] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:51,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:51,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-13 13:41:51,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662523635] [2024-10-13 13:41:51,657 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:51,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 13:41:51,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:51,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 13:41:51,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:41:51,659 INFO L87 Difference]: Start difference. First operand 394 states and 524 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-13 13:41:52,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:52,050 INFO L93 Difference]: Finished difference Result 399 states and 531 transitions. [2024-10-13 13:41:52,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 13:41:52,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 106 [2024-10-13 13:41:52,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:52,053 INFO L225 Difference]: With dead ends: 399 [2024-10-13 13:41:52,053 INFO L226 Difference]: Without dead ends: 398 [2024-10-13 13:41:52,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:41:52,054 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 23 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:52,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 310 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:41:52,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-10-13 13:41:52,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 395. [2024-10-13 13:41:52,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 330 states have (on average 1.2878787878787878) internal successors, (425), 342 states have internal predecessors, (425), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-13 13:41:52,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 525 transitions. [2024-10-13 13:41:52,110 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 525 transitions. Word has length 106 [2024-10-13 13:41:52,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:52,110 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 525 transitions. [2024-10-13 13:41:52,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-13 13:41:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 525 transitions. [2024-10-13 13:41:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-13 13:41:52,111 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:52,112 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:52,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-13 13:41:52,315 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 [2024-10-13 13:41:52,316 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:52,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:52,316 INFO L85 PathProgramCache]: Analyzing trace with hash -258734123, now seen corresponding path program 1 times [2024-10-13 13:41:52,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:52,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794585562] [2024-10-13 13:41:52,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:52,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:52,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874038066] [2024-10-13 13:41:52,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:52,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:52,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:52,340 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) [2024-10-13 13:41:52,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-13 13:41:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:52,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-13 13:41:52,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:52,790 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-10-13 13:41:52,790 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:53,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:53,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794585562] [2024-10-13 13:41:53,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:53,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874038066] [2024-10-13 13:41:53,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874038066] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:53,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:41:53,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-10-13 13:41:53,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952805364] [2024-10-13 13:41:53,972 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:53,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 13:41:53,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:53,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 13:41:53,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-10-13 13:41:53,974 INFO L87 Difference]: Start difference. First operand 395 states and 525 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-10-13 13:41:54,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:54,602 INFO L93 Difference]: Finished difference Result 667 states and 904 transitions. [2024-10-13 13:41:54,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 13:41:54,603 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 107 [2024-10-13 13:41:54,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:54,605 INFO L225 Difference]: With dead ends: 667 [2024-10-13 13:41:54,605 INFO L226 Difference]: Without dead ends: 416 [2024-10-13 13:41:54,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2024-10-13 13:41:54,607 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 94 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:54,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 421 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:41:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-10-13 13:41:54,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 410. [2024-10-13 13:41:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 341 states have (on average 1.3020527859237536) internal successors, (444), 353 states have internal predecessors, (444), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-13 13:41:54,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 552 transitions. [2024-10-13 13:41:54,662 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 552 transitions. Word has length 107 [2024-10-13 13:41:54,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:54,662 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 552 transitions. [2024-10-13 13:41:54,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-10-13 13:41:54,662 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 552 transitions. [2024-10-13 13:41:54,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-13 13:41:54,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:54,664 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:54,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-13 13:41:54,867 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 [2024-10-13 13:41:54,868 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:54,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:54,868 INFO L85 PathProgramCache]: Analyzing trace with hash 569176906, now seen corresponding path program 1 times [2024-10-13 13:41:54,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:54,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268482314] [2024-10-13 13:41:54,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:54,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:54,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:41:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:41:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 13:41:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-13 13:41:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,028 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-10-13 13:41:55,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:55,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268482314] [2024-10-13 13:41:55,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268482314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:41:55,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:41:55,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:41:55,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694782602] [2024-10-13 13:41:55,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:41:55,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:41:55,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:55,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:41:55,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:41:55,030 INFO L87 Difference]: Start difference. First operand 410 states and 552 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-13 13:41:55,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:55,597 INFO L93 Difference]: Finished difference Result 410 states and 552 transitions. [2024-10-13 13:41:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 13:41:55,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 108 [2024-10-13 13:41:55,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:55,599 INFO L225 Difference]: With dead ends: 410 [2024-10-13 13:41:55,599 INFO L226 Difference]: Without dead ends: 409 [2024-10-13 13:41:55,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:41:55,600 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 43 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:55,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 141 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:41:55,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-13 13:41:55,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2024-10-13 13:41:55,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 341 states have (on average 1.2991202346041055) internal successors, (443), 352 states have internal predecessors, (443), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-13 13:41:55,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 551 transitions. [2024-10-13 13:41:55,655 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 551 transitions. Word has length 108 [2024-10-13 13:41:55,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:55,655 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 551 transitions. [2024-10-13 13:41:55,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-13 13:41:55,656 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 551 transitions. [2024-10-13 13:41:55,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-13 13:41:55,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:55,657 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:55,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 13:41:55,657 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:55,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:55,657 INFO L85 PathProgramCache]: Analyzing trace with hash -289714692, now seen corresponding path program 1 times [2024-10-13 13:41:55,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:55,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26182116] [2024-10-13 13:41:55,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:55,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:41:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:41:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:41:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:41:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:41:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:41:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:41:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:41:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:41:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:41:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-13 13:41:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 13:41:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-13 13:41:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 13:41:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 13:41:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-13 13:41:55,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:55,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26182116] [2024-10-13 13:41:55,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26182116] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:41:55,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262852456] [2024-10-13 13:41:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:55,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:55,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:55,792 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:55,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-13 13:41:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:55,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:41:55,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-13 13:41:55,910 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:56,018 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-13 13:41:56,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262852456] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:41:56,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:41:56,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 13:41:56,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539958995] [2024-10-13 13:41:56,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:56,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 13:41:56,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:56,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 13:41:56,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-13 13:41:56,021 INFO L87 Difference]: Start difference. First operand 409 states and 551 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-10-13 13:41:56,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:41:56,335 INFO L93 Difference]: Finished difference Result 726 states and 961 transitions. [2024-10-13 13:41:56,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 13:41:56,335 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 110 [2024-10-13 13:41:56,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:41:56,338 INFO L225 Difference]: With dead ends: 726 [2024-10-13 13:41:56,338 INFO L226 Difference]: Without dead ends: 724 [2024-10-13 13:41:56,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-13 13:41:56,339 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 363 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:41:56,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 356 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:41:56,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-10-13 13:41:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 483. [2024-10-13 13:41:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 401 states have (on average 1.2718204488778055) internal successors, (510), 412 states have internal predecessors, (510), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 13:41:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 646 transitions. [2024-10-13 13:41:56,421 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 646 transitions. Word has length 110 [2024-10-13 13:41:56,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:41:56,422 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 646 transitions. [2024-10-13 13:41:56,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-10-13 13:41:56,423 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 646 transitions. [2024-10-13 13:41:56,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-13 13:41:56,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:41:56,424 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:41:56,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-13 13:41:56,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-13 13:41:56,630 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:41:56,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:41:56,630 INFO L85 PathProgramCache]: Analyzing trace with hash 464615031, now seen corresponding path program 1 times [2024-10-13 13:41:56,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:41:56,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104712469] [2024-10-13 13:41:56,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:56,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:41:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:41:56,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953333538] [2024-10-13 13:41:56,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:41:56,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:41:56,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:41:56,650 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:41:56,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-13 13:41:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:41:56,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-13 13:41:56,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:41:57,195 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-10-13 13:41:57,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:41:58,643 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-13 13:41:58,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:41:58,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104712469] [2024-10-13 13:41:58,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:41:58,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953333538] [2024-10-13 13:41:58,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953333538] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:41:58,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 13:41:58,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2024-10-13 13:41:58,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54503009] [2024-10-13 13:41:58,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 13:41:58,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-13 13:41:58,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:41:58,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-13 13:41:58,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-10-13 13:41:58,645 INFO L87 Difference]: Start difference. First operand 483 states and 646 transitions. Second operand has 20 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-10-13 13:42:00,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:42:00,887 INFO L93 Difference]: Finished difference Result 528 states and 702 transitions. [2024-10-13 13:42:00,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-13 13:42:00,888 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 109 [2024-10-13 13:42:00,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:42:00,891 INFO L225 Difference]: With dead ends: 528 [2024-10-13 13:42:00,891 INFO L226 Difference]: Without dead ends: 521 [2024-10-13 13:42:00,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-10-13 13:42:00,892 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 116 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 13:42:00,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 389 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 13:42:00,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-10-13 13:42:00,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 480. [2024-10-13 13:42:00,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 398 states have (on average 1.2613065326633166) internal successors, (502), 409 states have internal predecessors, (502), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 13:42:00,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 638 transitions. [2024-10-13 13:42:00,960 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 638 transitions. Word has length 109 [2024-10-13 13:42:00,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:42:00,960 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 638 transitions. [2024-10-13 13:42:00,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.052631578947368) internal successors, (96), 20 states have internal predecessors, (96), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-10-13 13:42:00,961 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 638 transitions. [2024-10-13 13:42:00,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-13 13:42:00,962 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:42:00,962 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-13 13:42:00,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-13 13:42:01,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-13 13:42:01,167 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:42:01,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:42:01,167 INFO L85 PathProgramCache]: Analyzing trace with hash -2059823605, now seen corresponding path program 2 times [2024-10-13 13:42:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:42:01,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444047704] [2024-10-13 13:42:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:42:01,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:42:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:42:01,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151409208] [2024-10-13 13:42:01,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:42:01,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:42:01,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:42:01,202 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:42:01,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-13 13:42:01,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:42:01,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:42:01,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:42:01,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:42:01,411 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-10-13 13:42:01,412 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:42:01,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:42:01,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444047704] [2024-10-13 13:42:01,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:42:01,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151409208] [2024-10-13 13:42:01,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151409208] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:42:01,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:42:01,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-13 13:42:01,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857313942] [2024-10-13 13:42:01,975 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:42:01,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 13:42:01,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:42:01,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 13:42:01,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:42:01,976 INFO L87 Difference]: Start difference. First operand 480 states and 638 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-13 13:42:02,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:42:02,255 INFO L93 Difference]: Finished difference Result 543 states and 729 transitions. [2024-10-13 13:42:02,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:42:02,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 112 [2024-10-13 13:42:02,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:42:02,258 INFO L225 Difference]: With dead ends: 543 [2024-10-13 13:42:02,258 INFO L226 Difference]: Without dead ends: 541 [2024-10-13 13:42:02,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-10-13 13:42:02,259 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 74 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:42:02,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 202 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:42:02,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-10-13 13:42:02,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 478. [2024-10-13 13:42:02,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 398 states have (on average 1.1984924623115578) internal successors, (477), 407 states have internal predecessors, (477), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 13:42:02,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 613 transitions. [2024-10-13 13:42:02,337 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 613 transitions. Word has length 112 [2024-10-13 13:42:02,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:42:02,339 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 613 transitions. [2024-10-13 13:42:02,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-13 13:42:02,339 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 613 transitions. [2024-10-13 13:42:02,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-13 13:42:02,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:42:02,340 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:42:02,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-13 13:42:02,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-13 13:42:02,541 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:42:02,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:42:02,541 INFO L85 PathProgramCache]: Analyzing trace with hash 700203380, now seen corresponding path program 1 times [2024-10-13 13:42:02,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:42:02,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572737330] [2024-10-13 13:42:02,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:42:02,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:42:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:42:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:42:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:42:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 13:42:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:42:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:42:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:42:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 13:42:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:42:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:42:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 13:42:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 13:42:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-13 13:42:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-10-13 13:42:02,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:42:02,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572737330] [2024-10-13 13:42:02,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572737330] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:42:02,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672833342] [2024-10-13 13:42:02,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:42:02,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:42:02,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:42:02,813 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:42:02,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-13 13:42:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:42:02,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 13:42:02,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:42:02,946 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-13 13:42:02,947 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:42:03,073 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-10-13 13:42:03,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672833342] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:42:03,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:42:03,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-10-13 13:42:03,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664120738] [2024-10-13 13:42:03,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:42:03,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:42:03,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:42:03,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:42:03,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-13 13:42:03,075 INFO L87 Difference]: Start difference. First operand 478 states and 613 transitions. Second operand has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-10-13 13:42:03,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:42:03,871 INFO L93 Difference]: Finished difference Result 842 states and 1103 transitions. [2024-10-13 13:42:03,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 13:42:03,872 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 112 [2024-10-13 13:42:03,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:42:03,875 INFO L225 Difference]: With dead ends: 842 [2024-10-13 13:42:03,875 INFO L226 Difference]: Without dead ends: 707 [2024-10-13 13:42:03,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-10-13 13:42:03,876 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 168 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 13:42:03,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 535 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 13:42:03,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-10-13 13:42:03,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 473. [2024-10-13 13:42:03,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 393 states have (on average 1.2264631043256997) internal successors, (482), 402 states have internal predecessors, (482), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 13:42:03,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 618 transitions. [2024-10-13 13:42:03,963 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 618 transitions. Word has length 112 [2024-10-13 13:42:03,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:42:03,963 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 618 transitions. [2024-10-13 13:42:03,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-10-13 13:42:03,964 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 618 transitions. [2024-10-13 13:42:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-13 13:42:03,965 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:42:03,965 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2024-10-13 13:42:03,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-13 13:42:04,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:42:04,169 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:42:04,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:42:04,169 INFO L85 PathProgramCache]: Analyzing trace with hash 569977766, now seen corresponding path program 2 times [2024-10-13 13:42:04,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:42:04,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512073052] [2024-10-13 13:42:04,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:42:04,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:42:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:42:04,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1403586846] [2024-10-13 13:42:04,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:42:04,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:42:04,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:42:04,193 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:42:04,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-13 13:42:04,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:42:04,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:42:04,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-13 13:42:04,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:42:04,862 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-10-13 13:42:04,862 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:42:05,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:42:05,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512073052] [2024-10-13 13:42:05,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:42:05,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403586846] [2024-10-13 13:42:05,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403586846] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:42:05,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:42:05,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-10-13 13:42:05,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800152785] [2024-10-13 13:42:05,077 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:42:05,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 13:42:05,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:42:05,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 13:42:05,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-10-13 13:42:05,078 INFO L87 Difference]: Start difference. First operand 473 states and 618 transitions. Second operand has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-13 13:42:05,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:42:05,440 INFO L93 Difference]: Finished difference Result 511 states and 667 transitions. [2024-10-13 13:42:05,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 13:42:05,441 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 113 [2024-10-13 13:42:05,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:42:05,442 INFO L225 Difference]: With dead ends: 511 [2024-10-13 13:42:05,442 INFO L226 Difference]: Without dead ends: 510 [2024-10-13 13:42:05,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-10-13 13:42:05,443 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 97 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:42:05,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 236 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:42:05,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-10-13 13:42:05,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 498. [2024-10-13 13:42:05,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 414 states have (on average 1.2198067632850242) internal successors, (505), 423 states have internal predecessors, (505), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-10-13 13:42:05,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 649 transitions. [2024-10-13 13:42:05,518 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 649 transitions. Word has length 113 [2024-10-13 13:42:05,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:42:05,519 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 649 transitions. [2024-10-13 13:42:05,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-13 13:42:05,519 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 649 transitions. [2024-10-13 13:42:05,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-13 13:42:05,520 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:42:05,520 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-13 13:42:05,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-13 13:42:05,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-13 13:42:05,724 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-13 13:42:05,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:42:05,725 INFO L85 PathProgramCache]: Analyzing trace with hash -570197465, now seen corresponding path program 3 times [2024-10-13 13:42:05,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:42:05,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701073153] [2024-10-13 13:42:05,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:42:05,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:42:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:42:05,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569133169] [2024-10-13 13:42:05,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 13:42:05,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:42:05,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:42:05,747 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:42:05,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-13 13:42:05,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-13 13:42:05,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:42:05,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-13 13:42:05,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:42:38,398 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 64 proven. 3 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-10-13 13:42:38,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:42:40,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:42:40,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701073153] [2024-10-13 13:42:40,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:42:40,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569133169] [2024-10-13 13:42:40,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569133169] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:42:40,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:42:40,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-13 13:42:40,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21769269] [2024-10-13 13:42:40,185 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:42:40,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:42:40,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:42:40,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:42:40,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-10-13 13:42:40,186 INFO L87 Difference]: Start difference. First operand 498 states and 649 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-13 13:42:44,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []