/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/termination-crafted/Copenhagen_disj-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:49:22,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:49:22,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:49:22,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 17:49:22,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:49:22,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:49:22,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:49:22,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:49:22,589 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:49:22,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:49:22,590 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:49:22,590 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:49:22,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:49:22,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:49:22,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:49:22,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:49:22,596 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:49:22,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:49:22,598 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:49:22,598 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:49:22,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:49:22,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:49:22,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:49:22,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:49:22,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:49:22,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:49:22,600 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:49:22,600 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:49:22,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:49:22,600 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:49:22,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:49:22,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:49:22,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:49:22,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:49:22,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:49:22,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:49:22,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:49:22,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:49:22,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:49:22,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:49:22,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:49:22,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:49:23,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:49:23,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:49:23,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:49:23,101 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:49:23,101 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:49:23,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Copenhagen_disj-2.c [2022-10-16 17:49:23,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c54a345a3/8ce6ec247fe84fb985b3b823a9b103ad/FLAG1e546558e [2022-10-16 17:49:23,823 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:49:23,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Copenhagen_disj-2.c [2022-10-16 17:49:23,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c54a345a3/8ce6ec247fe84fb985b3b823a9b103ad/FLAG1e546558e [2022-10-16 17:49:24,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c54a345a3/8ce6ec247fe84fb985b3b823a9b103ad [2022-10-16 17:49:24,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:49:24,192 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:49:24,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:49:24,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:49:24,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:49:24,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a13c4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24, skipping insertion in model container [2022-10-16 17:49:24,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:49:24,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:49:24,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:49:24,389 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:49:24,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:49:24,421 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:49:24,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24 WrapperNode [2022-10-16 17:49:24,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:49:24,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:49:24,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:49:24,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:49:24,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,453 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-10-16 17:49:24,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:49:24,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:49:24,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:49:24,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:49:24,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,473 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:49:24,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:49:24,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:49:24,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:49:24,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (1/1) ... [2022-10-16 17:49:24,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:49:24,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:24,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:49:24,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:49:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:49:24,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:49:24,653 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:49:24,656 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:49:24,822 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:49:24,833 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:49:24,833 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:49:24,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:49:24 BoogieIcfgContainer [2022-10-16 17:49:24,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:49:24,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:49:24,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:49:24,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:49:24,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:49:24" (1/3) ... [2022-10-16 17:49:24,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf622c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:49:24, skipping insertion in model container [2022-10-16 17:49:24,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:49:24" (2/3) ... [2022-10-16 17:49:24,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf622c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:49:24, skipping insertion in model container [2022-10-16 17:49:24,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:49:24" (3/3) ... [2022-10-16 17:49:24,848 INFO L112 eAbstractionObserver]: Analyzing ICFG Copenhagen_disj-2.c [2022-10-16 17:49:24,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:49:24,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 17:49:24,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:49:24,984 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@24dd8b99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:49:24,984 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 17:49:24,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:25,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:49:25,023 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:25,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:49:25,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:25,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:25,036 INFO L85 PathProgramCache]: Analyzing trace with hash 889571465, now seen corresponding path program 1 times [2022-10-16 17:49:25,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:25,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319629796] [2022-10-16 17:49:25,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:25,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:25,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:25,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319629796] [2022-10-16 17:49:25,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319629796] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:25,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:25,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:49:25,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510744008] [2022-10-16 17:49:25,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:25,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:49:25,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:25,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:49:25,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:49:25,371 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:25,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:25,468 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-10-16 17:49:25,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:49:25,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 17:49:25,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:25,485 INFO L225 Difference]: With dead ends: 29 [2022-10-16 17:49:25,486 INFO L226 Difference]: Without dead ends: 20 [2022-10-16 17:49:25,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:49:25,495 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:25,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 16 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:25,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-10-16 17:49:25,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2022-10-16 17:49:25,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:25,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-10-16 17:49:25,538 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2022-10-16 17:49:25,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:25,539 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-10-16 17:49:25,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:25,539 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-10-16 17:49:25,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 17:49:25,540 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:25,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:25,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:49:25,541 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:25,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:25,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1806911694, now seen corresponding path program 1 times [2022-10-16 17:49:25,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:25,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675300745] [2022-10-16 17:49:25,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:25,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:25,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:25,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:25,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675300745] [2022-10-16 17:49:25,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675300745] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:25,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:25,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:49:25,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809117334] [2022-10-16 17:49:25,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:25,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:49:25,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:25,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:49:25,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:49:25,637 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:25,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:25,680 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2022-10-16 17:49:25,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:49:25,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 17:49:25,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:25,688 INFO L225 Difference]: With dead ends: 21 [2022-10-16 17:49:25,688 INFO L226 Difference]: Without dead ends: 20 [2022-10-16 17:49:25,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:49:25,694 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:25,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 15 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:49:25,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-10-16 17:49:25,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2022-10-16 17:49:25,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-10-16 17:49:25,711 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2022-10-16 17:49:25,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:25,712 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-10-16 17:49:25,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:25,712 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-10-16 17:49:25,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 17:49:25,713 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:25,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:25,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:49:25,714 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:25,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:25,715 INFO L85 PathProgramCache]: Analyzing trace with hash 179687723, now seen corresponding path program 1 times [2022-10-16 17:49:25,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:25,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470671759] [2022-10-16 17:49:25,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:25,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:25,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:25,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:25,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470671759] [2022-10-16 17:49:25,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470671759] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:25,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:25,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:49:25,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494785551] [2022-10-16 17:49:25,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:25,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:49:25,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:25,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:49:25,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:49:25,842 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:25,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:25,914 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-10-16 17:49:25,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:49:25,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 17:49:25,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:25,917 INFO L225 Difference]: With dead ends: 20 [2022-10-16 17:49:25,917 INFO L226 Difference]: Without dead ends: 19 [2022-10-16 17:49:25,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:49:25,926 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:25,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 22 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:49:25,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-10-16 17:49:25,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-10-16 17:49:25,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-10-16 17:49:25,938 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2022-10-16 17:49:25,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:25,941 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-10-16 17:49:25,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:25,941 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-10-16 17:49:25,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:49:25,943 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:25,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:25,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:49:25,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:25,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:25,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1275352176, now seen corresponding path program 1 times [2022-10-16 17:49:25,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:25,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214033210] [2022-10-16 17:49:25,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:25,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:26,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:26,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214033210] [2022-10-16 17:49:26,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214033210] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:26,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:26,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:49:26,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992617594] [2022-10-16 17:49:26,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:26,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:49:26,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:26,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:49:26,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:49:26,028 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:26,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:26,059 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-10-16 17:49:26,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:49:26,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 17:49:26,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:26,061 INFO L225 Difference]: With dead ends: 20 [2022-10-16 17:49:26,061 INFO L226 Difference]: Without dead ends: 19 [2022-10-16 17:49:26,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:49:26,063 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:26,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:49:26,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-10-16 17:49:26,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-10-16 17:49:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:26,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-10-16 17:49:26,069 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2022-10-16 17:49:26,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:26,070 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-10-16 17:49:26,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:26,070 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-10-16 17:49:26,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 17:49:26,071 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:26,071 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:26,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:49:26,072 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:26,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:26,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1547763410, now seen corresponding path program 1 times [2022-10-16 17:49:26,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:26,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417650605] [2022-10-16 17:49:26,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:26,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:26,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:26,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:26,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417650605] [2022-10-16 17:49:26,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417650605] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:49:26,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:49:26,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:49:26,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221827167] [2022-10-16 17:49:26,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:49:26,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:49:26,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:26,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:49:26,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:49:26,133 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:26,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:26,185 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-10-16 17:49:26,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:49:26,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 17:49:26,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:26,190 INFO L225 Difference]: With dead ends: 18 [2022-10-16 17:49:26,190 INFO L226 Difference]: Without dead ends: 17 [2022-10-16 17:49:26,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:49:26,195 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:26,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 8 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:49:26,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-10-16 17:49:26,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-10-16 17:49:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:26,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-10-16 17:49:26,207 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2022-10-16 17:49:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:26,207 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-10-16 17:49:26,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:26,208 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-10-16 17:49:26,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:49:26,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:26,211 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:26,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:49:26,212 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:26,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:26,212 INFO L85 PathProgramCache]: Analyzing trace with hash 736025509, now seen corresponding path program 1 times [2022-10-16 17:49:26,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:26,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843867409] [2022-10-16 17:49:26,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:26,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:26,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:26,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843867409] [2022-10-16 17:49:26,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843867409] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:26,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558075855] [2022-10-16 17:49:26,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:26,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:26,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:26,307 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) [2022-10-16 17:49:26,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 17:49:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:26,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:49:26,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:26,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:26,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:26,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558075855] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:26,494 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:26,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 17:49:26,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487254719] [2022-10-16 17:49:26,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:26,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:49:26,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:26,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:49:26,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:49:26,497 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:26,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:26,683 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-10-16 17:49:26,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:49:26,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:49:26,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:26,686 INFO L225 Difference]: With dead ends: 33 [2022-10-16 17:49:26,686 INFO L226 Difference]: Without dead ends: 31 [2022-10-16 17:49:26,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:49:26,696 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 23 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:26,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 16 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:26,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-16 17:49:26,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-10-16 17:49:26,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 29 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:26,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-10-16 17:49:26,717 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 12 [2022-10-16 17:49:26,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:26,718 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-10-16 17:49:26,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:26,721 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-10-16 17:49:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 17:49:26,722 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:26,722 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:49:26,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 17:49:26,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 17:49:26,927 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:26,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:26,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1341954356, now seen corresponding path program 1 times [2022-10-16 17:49:26,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:26,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853170648] [2022-10-16 17:49:26,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:26,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:26,999 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:27,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:27,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853170648] [2022-10-16 17:49:27,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853170648] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:27,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807709646] [2022-10-16 17:49:27,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:27,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:27,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:27,011 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) [2022-10-16 17:49:27,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 17:49:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:27,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:49:27,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:27,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:27,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:27,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807709646] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:27,123 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:27,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 17:49:27,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337547254] [2022-10-16 17:49:27,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:27,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:49:27,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:27,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:49:27,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:49:27,126 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:27,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:27,259 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-10-16 17:49:27,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:49:27,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 17:49:27,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:27,261 INFO L225 Difference]: With dead ends: 37 [2022-10-16 17:49:27,261 INFO L226 Difference]: Without dead ends: 36 [2022-10-16 17:49:27,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:49:27,262 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:27,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 6 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:49:27,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-16 17:49:27,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2022-10-16 17:49:27,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:27,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2022-10-16 17:49:27,271 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 13 [2022-10-16 17:49:27,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:27,284 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2022-10-16 17:49:27,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:27,285 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2022-10-16 17:49:27,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 17:49:27,286 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:27,286 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1] [2022-10-16 17:49:27,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 17:49:27,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-10-16 17:49:27,503 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:27,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:27,504 INFO L85 PathProgramCache]: Analyzing trace with hash 69890855, now seen corresponding path program 1 times [2022-10-16 17:49:27,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:27,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334663134] [2022-10-16 17:49:27,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:27,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:27,685 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:27,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:27,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334663134] [2022-10-16 17:49:27,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334663134] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:27,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483860321] [2022-10-16 17:49:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:27,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:27,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:27,688 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) [2022-10-16 17:49:27,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 17:49:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:27,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:49:27,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:27,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:27,873 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:27,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483860321] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:27,874 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:27,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-10-16 17:49:27,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493023967] [2022-10-16 17:49:27,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:27,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 17:49:27,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:27,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 17:49:27,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-10-16 17:49:27,877 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:28,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:28,171 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-10-16 17:49:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 17:49:28,172 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 17:49:28,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:28,175 INFO L225 Difference]: With dead ends: 54 [2022-10-16 17:49:28,176 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 17:49:28,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2022-10-16 17:49:28,178 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:28,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 26 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:49:28,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 17:49:28,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2022-10-16 17:49:28,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 50 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:28,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2022-10-16 17:49:28,207 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 24 [2022-10-16 17:49:28,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:28,208 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2022-10-16 17:49:28,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:28,211 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2022-10-16 17:49:28,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 17:49:28,213 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:28,213 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1, 1, 1] [2022-10-16 17:49:28,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 17:49:28,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:28,427 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:28,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:28,428 INFO L85 PathProgramCache]: Analyzing trace with hash -19551099, now seen corresponding path program 2 times [2022-10-16 17:49:28,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:28,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466601741] [2022-10-16 17:49:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:28,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:28,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:28,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466601741] [2022-10-16 17:49:28,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466601741] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:28,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678593085] [2022-10-16 17:49:28,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:49:28,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:28,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:28,676 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) [2022-10-16 17:49:28,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 17:49:28,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:49:28,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:28,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 17:49:28,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:28,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:29,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678593085] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:29,188 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:29,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-10-16 17:49:29,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700718775] [2022-10-16 17:49:29,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:29,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 17:49:29,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:29,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 17:49:29,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2022-10-16 17:49:29,194 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand has 26 states, 25 states have (on average 3.28) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:29,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:29,905 INFO L93 Difference]: Finished difference Result 91 states and 105 transitions. [2022-10-16 17:49:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 17:49:29,906 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.28) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-10-16 17:49:29,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:29,907 INFO L225 Difference]: With dead ends: 91 [2022-10-16 17:49:29,907 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 17:49:29,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=750, Invalid=1700, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 17:49:29,909 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 93 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:29,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 20 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:49:29,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 17:49:29,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-10-16 17:49:29,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 87 states have (on average 1.0229885057471264) internal successors, (89), 88 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:29,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2022-10-16 17:49:29,926 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 42 [2022-10-16 17:49:29,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:29,926 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2022-10-16 17:49:29,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.28) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:29,927 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2022-10-16 17:49:29,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 17:49:29,929 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:29,930 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 1, 1, 1, 1, 1] [2022-10-16 17:49:29,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 17:49:30,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:30,145 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:30,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:30,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1060983577, now seen corresponding path program 2 times [2022-10-16 17:49:30,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:30,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389613151] [2022-10-16 17:49:30,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:30,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:30,888 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:30,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:30,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389613151] [2022-10-16 17:49:30,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389613151] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:30,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716619257] [2022-10-16 17:49:30,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:49:30,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:30,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:30,892 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) [2022-10-16 17:49:30,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 17:49:30,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:49:30,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:30,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 17:49:30,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:31,219 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:31,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:31,935 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:31,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716619257] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:31,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:31,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-10-16 17:49:31,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026790189] [2022-10-16 17:49:31,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:31,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 17:49:31,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:31,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 17:49:31,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=1993, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 17:49:31,940 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand has 50 states, 49 states have (on average 3.36734693877551) internal successors, (165), 50 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:33,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:33,747 INFO L93 Difference]: Finished difference Result 174 states and 204 transitions. [2022-10-16 17:49:33,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 17:49:33,748 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 3.36734693877551) internal successors, (165), 50 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-10-16 17:49:33,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:33,750 INFO L225 Difference]: With dead ends: 174 [2022-10-16 17:49:33,751 INFO L226 Difference]: Without dead ends: 172 [2022-10-16 17:49:33,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2146 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2842, Invalid=6664, Unknown=0, NotChecked=0, Total=9506 [2022-10-16 17:49:33,757 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 172 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:33,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 50 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:49:33,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-10-16 17:49:33,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 171. [2022-10-16 17:49:33,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 169 states have (on average 1.017751479289941) internal successors, (172), 170 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:33,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 172 transitions. [2022-10-16 17:49:33,784 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 172 transitions. Word has length 84 [2022-10-16 17:49:33,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:33,785 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 172 transitions. [2022-10-16 17:49:33,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 3.36734693877551) internal successors, (165), 50 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:33,786 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 172 transitions. [2022-10-16 17:49:33,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-10-16 17:49:33,789 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:33,789 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 1, 1, 1, 1, 1] [2022-10-16 17:49:33,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 17:49:34,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 17:49:34,004 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:34,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:34,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2137186299, now seen corresponding path program 3 times [2022-10-16 17:49:34,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:34,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632903243] [2022-10-16 17:49:34,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:34,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:36,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:36,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:36,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632903243] [2022-10-16 17:49:36,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632903243] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:36,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718987055] [2022-10-16 17:49:36,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:49:36,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:36,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:36,115 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) [2022-10-16 17:49:36,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 17:49:36,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2022-10-16 17:49:36,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:36,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 17:49:36,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:36,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:49:38,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:38,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718987055] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:49:38,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:49:38,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2022-10-16 17:49:38,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994365843] [2022-10-16 17:49:38,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:49:38,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-10-16 17:49:38,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:49:38,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-10-16 17:49:38,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1681, Invalid=7825, Unknown=0, NotChecked=0, Total=9506 [2022-10-16 17:49:38,664 INFO L87 Difference]: Start difference. First operand 171 states and 172 transitions. Second operand has 98 states, 97 states have (on average 3.3195876288659796) internal successors, (322), 98 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:45,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:49:45,039 INFO L93 Difference]: Finished difference Result 331 states and 393 transitions. [2022-10-16 17:49:45,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-10-16 17:49:45,040 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 3.3195876288659796) internal successors, (322), 98 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2022-10-16 17:49:45,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:49:45,043 INFO L225 Difference]: With dead ends: 331 [2022-10-16 17:49:45,044 INFO L226 Difference]: Without dead ends: 329 [2022-10-16 17:49:45,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9078 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=11058, Invalid=26384, Unknown=0, NotChecked=0, Total=37442 [2022-10-16 17:49:45,057 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 416 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 17:49:45,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 49 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 17:49:45,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-10-16 17:49:45,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2022-10-16 17:49:45,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 327 states have (on average 1.0061162079510704) internal successors, (329), 328 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:45,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 329 transitions. [2022-10-16 17:49:45,108 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 329 transitions. Word has length 162 [2022-10-16 17:49:45,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:49:45,109 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 329 transitions. [2022-10-16 17:49:45,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 3.3195876288659796) internal successors, (322), 98 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:49:45,110 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 329 transitions. [2022-10-16 17:49:45,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-10-16 17:49:45,120 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:49:45,120 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 64, 63, 1, 1, 1, 1, 1] [2022-10-16 17:49:45,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 17:49:45,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:45,337 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:49:45,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:49:45,338 INFO L85 PathProgramCache]: Analyzing trace with hash 487871463, now seen corresponding path program 3 times [2022-10-16 17:49:45,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:49:45,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015911711] [2022-10-16 17:49:45,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:49:45,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:49:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:49:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 10080 backedges. 0 proven. 10080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:52,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:49:52,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015911711] [2022-10-16 17:49:52,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015911711] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:49:52,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040513792] [2022-10-16 17:49:52,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:49:52,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:49:52,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:49:52,646 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) [2022-10-16 17:49:52,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 17:49:52,884 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2022-10-16 17:49:52,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:49:52,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 97 conjunts are in the unsatisfiable core [2022-10-16 17:49:52,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:49:53,360 INFO L134 CoverageAnalysis]: Checked inductivity of 10080 backedges. 0 proven. 10080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:49:53,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:01,077 INFO L134 CoverageAnalysis]: Checked inductivity of 10080 backedges. 0 proven. 10080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:01,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040513792] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:01,078 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:01,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 193 [2022-10-16 17:50:01,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452869509] [2022-10-16 17:50:01,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:01,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2022-10-16 17:50:01,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:01,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2022-10-16 17:50:01,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6433, Invalid=31009, Unknown=0, NotChecked=0, Total=37442 [2022-10-16 17:50:01,089 INFO L87 Difference]: Start difference. First operand 329 states and 329 transitions. Second operand has 194 states, 193 states have (on average 3.3419689119170983) internal successors, (645), 194 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:24,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:24,664 INFO L93 Difference]: Finished difference Result 654 states and 780 transitions. [2022-10-16 17:50:24,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-10-16 17:50:24,665 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 193 states have (on average 3.3419689119170983) internal successors, (645), 194 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 324 [2022-10-16 17:50:24,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:24,669 INFO L225 Difference]: With dead ends: 654 [2022-10-16 17:50:24,669 INFO L226 Difference]: Without dead ends: 652 [2022-10-16 17:50:24,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 935 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 384 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37342 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=43618, Invalid=104992, Unknown=0, NotChecked=0, Total=148610 [2022-10-16 17:50:24,682 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1086 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 1657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 2646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1657 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:24,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 62 Invalid, 2646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1657 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 17:50:24,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-10-16 17:50:24,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 651. [2022-10-16 17:50:24,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 649 states have (on average 1.00462249614792) internal successors, (652), 650 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:24,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 652 transitions. [2022-10-16 17:50:24,739 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 652 transitions. Word has length 324 [2022-10-16 17:50:24,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:24,740 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 652 transitions. [2022-10-16 17:50:24,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 193 states have (on average 3.3419689119170983) internal successors, (645), 194 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:24,741 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 652 transitions. [2022-10-16 17:50:24,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2022-10-16 17:50:24,759 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:24,760 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 127, 127, 127, 1, 1, 1, 1, 1] [2022-10-16 17:50:24,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:24,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:24,975 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:50:24,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:24,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1212289531, now seen corresponding path program 4 times [2022-10-16 17:50:24,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:24,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877857392] [2022-10-16 17:50:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:24,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 40386 backedges. 0 proven. 40386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:50,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:50,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877857392] [2022-10-16 17:50:50,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877857392] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:50,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569100159] [2022-10-16 17:50:50,991 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:50:50,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:50,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:50,993 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) [2022-10-16 17:50:50,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 17:50:51,235 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:50:51,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:51,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 193 conjunts are in the unsatisfiable core [2022-10-16 17:50:51,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 40386 backedges. 0 proven. 40386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:52,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:51:21,091 INFO L134 CoverageAnalysis]: Checked inductivity of 40386 backedges. 0 proven. 40386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:51:21,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569100159] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:51:21,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:51:21,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [193, 193, 193] total 385 [2022-10-16 17:51:21,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102571872] [2022-10-16 17:51:21,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:51:21,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 386 states [2022-10-16 17:51:21,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:51:21,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 386 interpolants. [2022-10-16 17:51:21,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25153, Invalid=123457, Unknown=0, NotChecked=0, Total=148610 [2022-10-16 17:51:21,118 INFO L87 Difference]: Start difference. First operand 651 states and 652 transitions. Second operand has 386 states, 385 states have (on average 3.32987012987013) internal successors, (1282), 386 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:05,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:53:05,670 INFO L93 Difference]: Finished difference Result 1291 states and 1545 transitions. [2022-10-16 17:53:05,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 388 states. [2022-10-16 17:53:05,671 INFO L78 Accepts]: Start accepts. Automaton has has 386 states, 385 states have (on average 3.32987012987013) internal successors, (1282), 386 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 642 [2022-10-16 17:53:05,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:53:05,678 INFO L225 Difference]: With dead ends: 1291 [2022-10-16 17:53:05,679 INFO L226 Difference]: Without dead ends: 1289 [2022-10-16 17:53:05,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1859 GetRequests, 1091 SyntacticMatches, 0 SemanticMatches, 768 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151470 ImplicationChecksByTransitivity, 119.8s TimeCoverageRelationStatistics Valid=173250, Invalid=418880, Unknown=0, NotChecked=0, Total=592130 [2022-10-16 17:53:05,715 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2073 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 3349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2073 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 5300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3349 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:53:05,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2073 Valid, 59 Invalid, 5300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3349 Valid, 1951 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-16 17:53:05,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2022-10-16 17:53:05,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2022-10-16 17:53:05,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1287 states have (on average 1.0015540015540016) internal successors, (1289), 1288 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:05,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1289 transitions. [2022-10-16 17:53:05,809 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1289 transitions. Word has length 642 [2022-10-16 17:53:05,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:53:05,811 INFO L495 AbstractCegarLoop]: Abstraction has 1289 states and 1289 transitions. [2022-10-16 17:53:05,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 386 states, 385 states have (on average 3.32987012987013) internal successors, (1282), 386 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:05,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1289 transitions. [2022-10-16 17:53:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1285 [2022-10-16 17:53:05,827 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:53:05,828 INFO L195 NwaCegarLoop]: trace histogram [256, 256, 256, 256, 255, 1, 1, 1, 1, 1] [2022-10-16 17:53:05,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 17:53:06,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 17:53:06,038 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 17:53:06,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:53:06,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1754861593, now seen corresponding path program 4 times [2022-10-16 17:53:06,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:53:06,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119243320] [2022-10-16 17:53:06,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:53:06,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:53:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat