/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-nla/ps4-both-nt.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:23:11,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:23:11,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:23:11,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 17:23:11,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:23:11,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:23:11,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:23:11,748 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 17:23:11,776 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:23:11,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:23:11,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:23:11,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:23:11,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:23:11,779 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:23:11,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:23:11,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:23:11,780 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:23:11,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:23:11,781 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:23:11,781 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:23:11,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:23:11,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:23:11,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:23:11,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:23:11,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:23:11,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:23:11,783 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:23:11,783 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:23:11,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:23:11,784 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:23:11,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:23:11,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:23:11,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:23:11,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:23:11,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:23:11,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:23:11,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:23:11,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:23:11,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:23:11,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:23:11,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:23:11,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:23:12,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:23:12,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:23:12,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:23:12,186 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:23:12,187 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:23:12,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-nla/ps4-both-nt.c [2022-10-16 17:23:12,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e14a6a7b/18594b864ee9405bb145eacee9f28321/FLAG1c4cfdaef [2022-10-16 17:23:12,897 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:23:12,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/ps4-both-nt.c [2022-10-16 17:23:12,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e14a6a7b/18594b864ee9405bb145eacee9f28321/FLAG1c4cfdaef [2022-10-16 17:23:13,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e14a6a7b/18594b864ee9405bb145eacee9f28321 [2022-10-16 17:23:13,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:23:13,297 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:23:13,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:23:13,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:23:13,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:23:13,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211d89e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13, skipping insertion in model container [2022-10-16 17:23:13,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:23:13,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:23:13,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:23:13,492 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:23:13,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:23:13,525 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:23:13,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13 WrapperNode [2022-10-16 17:23:13,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:23:13,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:23:13,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:23:13,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:23:13,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,565 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-10-16 17:23:13,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:23:13,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:23:13,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:23:13,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:23:13,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,587 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:23:13,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:23:13,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:23:13,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:23:13,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (1/1) ... [2022-10-16 17:23:13,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:23:13,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:13,636 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 17:23:13,650 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 17:23:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:23:13,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:23:13,759 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:23:13,761 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:23:14,536 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:23:14,562 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:23:14,562 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:23:14,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:23:14 BoogieIcfgContainer [2022-10-16 17:23:14,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:23:14,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:23:14,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:23:14,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:23:14,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:23:13" (1/3) ... [2022-10-16 17:23:14,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4867e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:23:14, skipping insertion in model container [2022-10-16 17:23:14,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:13" (2/3) ... [2022-10-16 17:23:14,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4867e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:23:14, skipping insertion in model container [2022-10-16 17:23:14,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:23:14" (3/3) ... [2022-10-16 17:23:14,600 INFO L112 eAbstractionObserver]: Analyzing ICFG ps4-both-nt.c [2022-10-16 17:23:14,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:23:14,638 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-10-16 17:23:14,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:23:14,718 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;@4f269103, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:23:14,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-10-16 17:23:14,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 39 states have (on average 1.8974358974358974) internal successors, (74), 71 states have internal predecessors, (74), 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 17:23:14,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 17:23:14,733 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:14,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 17:23:14,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:14,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:14,742 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-10-16 17:23:14,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:14,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363888579] [2022-10-16 17:23:14,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:14,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:15,072 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 17:23:15,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:15,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363888579] [2022-10-16 17:23:15,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363888579] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:15,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:15,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:23:15,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861115997] [2022-10-16 17:23:15,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:15,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:23:15,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:15,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:23:15,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:23:15,135 INFO L87 Difference]: Start difference. First operand has 72 states, 39 states have (on average 1.8974358974358974) internal successors, (74), 71 states have internal predecessors, (74), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 17:23:15,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:15,271 INFO L93 Difference]: Finished difference Result 140 states and 149 transitions. [2022-10-16 17:23:15,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:23:15,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-10-16 17:23:15,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:15,297 INFO L225 Difference]: With dead ends: 140 [2022-10-16 17:23:15,297 INFO L226 Difference]: Without dead ends: 119 [2022-10-16 17:23:15,303 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 17:23:15,312 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 59 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:15,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 93 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:23:15,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-10-16 17:23:15,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 85. [2022-10-16 17:23:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 58 states have (on average 1.6896551724137931) internal successors, (98), 84 states have internal predecessors, (98), 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 17:23:15,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 98 transitions. [2022-10-16 17:23:15,391 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 98 transitions. Word has length 4 [2022-10-16 17:23:15,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:15,393 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 98 transitions. [2022-10-16 17:23:15,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 17:23:15,394 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 98 transitions. [2022-10-16 17:23:15,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 17:23:15,395 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:15,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 17:23:15,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:23:15,398 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:15,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:15,400 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-10-16 17:23:15,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:15,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264938841] [2022-10-16 17:23:15,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:15,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:15,479 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 17:23:15,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:15,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264938841] [2022-10-16 17:23:15,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264938841] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:15,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:15,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:23:15,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379348986] [2022-10-16 17:23:15,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:15,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:23:15,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:15,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:23:15,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:23:15,487 INFO L87 Difference]: Start difference. First operand 85 states and 98 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 17:23:15,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:15,596 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2022-10-16 17:23:15,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:23:15,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-10-16 17:23:15,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:15,606 INFO L225 Difference]: With dead ends: 101 [2022-10-16 17:23:15,607 INFO L226 Difference]: Without dead ends: 100 [2022-10-16 17:23:15,610 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 17:23:15,613 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 53 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:15,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 73 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:23:15,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-16 17:23:15,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2022-10-16 17:23:15,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 84 states have internal predecessors, (97), 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 17:23:15,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2022-10-16 17:23:15,636 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 5 [2022-10-16 17:23:15,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:15,637 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2022-10-16 17:23:15,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 17:23:15,637 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2022-10-16 17:23:15,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:23:15,639 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:15,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:23:15,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:23:15,640 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:15,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:15,647 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2022-10-16 17:23:15,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:15,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247814260] [2022-10-16 17:23:15,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:15,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:15,669 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:15,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1792091966] [2022-10-16 17:23:15,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:15,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:15,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:15,680 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 17:23:15,716 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 17:23:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:15,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:23:15,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:15,751 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 17:23:15,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:15,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:15,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247814260] [2022-10-16 17:23:15,753 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:15,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792091966] [2022-10-16 17:23:15,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792091966] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:15,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:15,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:23:15,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205230181] [2022-10-16 17:23:15,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:15,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:23:15,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:15,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:23:15,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:23:15,756 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. 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 17:23:15,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:15,896 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2022-10-16 17:23:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:23:15,897 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 17:23:15,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:15,898 INFO L225 Difference]: With dead ends: 108 [2022-10-16 17:23:15,898 INFO L226 Difference]: Without dead ends: 96 [2022-10-16 17:23:15,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 17:23:15,906 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 29 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:15,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 47 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:23:15,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-10-16 17:23:15,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2022-10-16 17:23:15,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 64 states have (on average 1.5) internal successors, (96), 90 states have internal predecessors, (96), 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 17:23:15,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 96 transitions. [2022-10-16 17:23:15,925 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 96 transitions. Word has length 6 [2022-10-16 17:23:15,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:15,925 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 96 transitions. [2022-10-16 17:23:15,926 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 17:23:15,928 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 96 transitions. [2022-10-16 17:23:15,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 17:23:15,929 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:15,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:15,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:16,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:16,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:16,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:16,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1728187089, now seen corresponding path program 1 times [2022-10-16 17:23:16,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:16,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343405924] [2022-10-16 17:23:16,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:16,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:16,144 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:16,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186364283] [2022-10-16 17:23:16,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:16,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:16,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:16,147 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 17:23:16,167 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 17:23:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:16,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:23:16,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:16,283 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 17:23:16,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:16,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:16,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343405924] [2022-10-16 17:23:16,290 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:16,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186364283] [2022-10-16 17:23:16,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186364283] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:16,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:16,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:23:16,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623235532] [2022-10-16 17:23:16,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:16,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:23:16,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:16,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:23:16,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:23:16,297 INFO L87 Difference]: Start difference. First operand 91 states and 96 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 17:23:16,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:16,479 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2022-10-16 17:23:16,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:23:16,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 17:23:16,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:16,481 INFO L225 Difference]: With dead ends: 96 [2022-10-16 17:23:16,482 INFO L226 Difference]: Without dead ends: 95 [2022-10-16 17:23:16,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:23:16,483 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 49 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:16,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 64 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:23:16,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-10-16 17:23:16,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2022-10-16 17:23:16,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 64 states have (on average 1.484375) internal successors, (95), 90 states have internal predecessors, (95), 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 17:23:16,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2022-10-16 17:23:16,493 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 13 [2022-10-16 17:23:16,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:16,494 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2022-10-16 17:23:16,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 17:23:16,494 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2022-10-16 17:23:16,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 17:23:16,495 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:16,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:16,533 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 17:23:16,709 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,SelfDestructingSolverStorable3 [2022-10-16 17:23:16,710 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:16,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:16,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1918380377, now seen corresponding path program 1 times [2022-10-16 17:23:16,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:16,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967150850] [2022-10-16 17:23:16,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:16,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:16,726 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:16,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [142255557] [2022-10-16 17:23:16,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:16,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:16,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:16,728 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 17:23:16,738 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 17:23:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:16,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:23:16,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:16,906 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 17:23:16,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:16,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:16,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967150850] [2022-10-16 17:23:16,907 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:16,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142255557] [2022-10-16 17:23:16,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142255557] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:16,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:16,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:23:16,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930724782] [2022-10-16 17:23:16,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:16,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:23:16,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:16,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:23:16,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:23:16,910 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 17:23:17,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:17,021 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2022-10-16 17:23:17,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:23:17,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2022-10-16 17:23:17,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:17,023 INFO L225 Difference]: With dead ends: 95 [2022-10-16 17:23:17,023 INFO L226 Difference]: Without dead ends: 93 [2022-10-16 17:23:17,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:23:17,025 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 11 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:17,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 44 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:23:17,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-16 17:23:17,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2022-10-16 17:23:17,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 64 states have (on average 1.453125) internal successors, (93), 90 states have internal predecessors, (93), 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 17:23:17,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 93 transitions. [2022-10-16 17:23:17,034 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 93 transitions. Word has length 21 [2022-10-16 17:23:17,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:17,034 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 93 transitions. [2022-10-16 17:23:17,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 17:23:17,035 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 93 transitions. [2022-10-16 17:23:17,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 17:23:17,036 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:17,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:17,074 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 17:23:17,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:17,250 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:17,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:17,251 INFO L85 PathProgramCache]: Analyzing trace with hash 525029535, now seen corresponding path program 1 times [2022-10-16 17:23:17,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:17,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361913060] [2022-10-16 17:23:17,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:17,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:17,264 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:17,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1555128541] [2022-10-16 17:23:17,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:17,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:17,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:17,267 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 17:23:17,278 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 17:23:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:17,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 17:23:17,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:17,371 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 17:23:17,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:17,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:17,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361913060] [2022-10-16 17:23:17,372 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:17,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555128541] [2022-10-16 17:23:17,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555128541] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:17,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:17,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:23:17,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505978031] [2022-10-16 17:23:17,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:17,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:23:17,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:17,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:23:17,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:23:17,376 INFO L87 Difference]: Start difference. First operand 91 states and 93 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 17:23:17,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:17,387 INFO L93 Difference]: Finished difference Result 92 states and 93 transitions. [2022-10-16 17:23:17,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:23:17,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2022-10-16 17:23:17,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:17,389 INFO L225 Difference]: With dead ends: 92 [2022-10-16 17:23:17,389 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 17:23:17,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 17:23:17,391 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 2 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:17,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 118 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:23:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 17:23:17,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-10-16 17:23:17,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 64 states have (on average 1.4375) internal successors, (92), 90 states have internal predecessors, (92), 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 17:23:17,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 92 transitions. [2022-10-16 17:23:17,399 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 92 transitions. Word has length 27 [2022-10-16 17:23:17,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:17,399 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 92 transitions. [2022-10-16 17:23:17,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 17:23:17,400 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 92 transitions. [2022-10-16 17:23:17,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 17:23:17,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:17,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:17,440 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 17:23:17,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:17,608 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:17,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:17,609 INFO L85 PathProgramCache]: Analyzing trace with hash -903953505, now seen corresponding path program 1 times [2022-10-16 17:23:17,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:17,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792986387] [2022-10-16 17:23:17,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:17,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:17,634 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:17,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758460853] [2022-10-16 17:23:17,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:17,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:17,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:17,636 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 17:23:17,642 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 17:23:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:17,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 17:23:17,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:17,745 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 17:23:17,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:17,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:17,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792986387] [2022-10-16 17:23:17,745 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:17,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758460853] [2022-10-16 17:23:17,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758460853] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:17,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:17,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:23:17,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368396676] [2022-10-16 17:23:17,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:17,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:23:17,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:17,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:23:17,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:23:17,748 INFO L87 Difference]: Start difference. First operand 91 states and 92 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 17:23:17,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:17,756 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2022-10-16 17:23:17,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:23:17,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2022-10-16 17:23:17,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:17,757 INFO L225 Difference]: With dead ends: 91 [2022-10-16 17:23:17,758 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 17:23:17,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 17:23:17,759 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 34 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:17,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 60 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:23:17,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 17:23:17,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-10-16 17:23:17,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 64 states have (on average 1.40625) internal successors, (90), 89 states have internal predecessors, (90), 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 17:23:17,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2022-10-16 17:23:17,766 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 28 [2022-10-16 17:23:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:17,767 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2022-10-16 17:23:17,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 17:23:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2022-10-16 17:23:17,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 17:23:17,768 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:17,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:17,805 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 17:23:17,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:17,984 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:17,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:17,985 INFO L85 PathProgramCache]: Analyzing trace with hash -233826141, now seen corresponding path program 1 times [2022-10-16 17:23:17,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:17,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782180674] [2022-10-16 17:23:17,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:17,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:17,998 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:17,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456847390] [2022-10-16 17:23:17,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:17,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:17,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:18,000 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 17:23:18,003 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 17:23:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:18,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:23:18,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:18,101 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 17:23:18,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:18,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:18,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782180674] [2022-10-16 17:23:18,102 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:18,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456847390] [2022-10-16 17:23:18,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456847390] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:18,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:18,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:23:18,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814655927] [2022-10-16 17:23:18,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:18,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:23:18,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:18,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:23:18,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:23:18,105 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 17:23:18,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:18,268 INFO L93 Difference]: Finished difference Result 150 states and 150 transitions. [2022-10-16 17:23:18,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:23:18,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2022-10-16 17:23:18,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:18,269 INFO L225 Difference]: With dead ends: 150 [2022-10-16 17:23:18,270 INFO L226 Difference]: Without dead ends: 135 [2022-10-16 17:23:18,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:23:18,271 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 44 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:18,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 48 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:23:18,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-10-16 17:23:18,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 124. [2022-10-16 17:23:18,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 98 states have (on average 1.3775510204081634) internal successors, (135), 123 states have internal predecessors, (135), 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 17:23:18,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 135 transitions. [2022-10-16 17:23:18,289 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 135 transitions. Word has length 31 [2022-10-16 17:23:18,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:18,292 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 135 transitions. [2022-10-16 17:23:18,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 17:23:18,292 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 135 transitions. [2022-10-16 17:23:18,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 17:23:18,296 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:18,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:18,335 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 17:23:18,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:18,498 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:18,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:18,500 INFO L85 PathProgramCache]: Analyzing trace with hash -982712153, now seen corresponding path program 1 times [2022-10-16 17:23:18,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:18,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362081313] [2022-10-16 17:23:18,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:18,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:18,513 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:18,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365217890] [2022-10-16 17:23:18,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:18,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:18,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:18,515 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 17:23:18,535 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 17:23:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:18,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:23:18,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:18,628 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 17:23:18,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:18,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:18,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362081313] [2022-10-16 17:23:18,629 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:18,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365217890] [2022-10-16 17:23:18,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365217890] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:18,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:18,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:23:18,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381520878] [2022-10-16 17:23:18,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:18,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:23:18,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:18,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:23:18,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:23:18,632 INFO L87 Difference]: Start difference. First operand 124 states and 135 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 17:23:18,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:18,736 INFO L93 Difference]: Finished difference Result 126 states and 135 transitions. [2022-10-16 17:23:18,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:23:18,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2022-10-16 17:23:18,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:18,738 INFO L225 Difference]: With dead ends: 126 [2022-10-16 17:23:18,738 INFO L226 Difference]: Without dead ends: 125 [2022-10-16 17:23:18,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:23:18,739 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 31 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:18,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 78 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:23:18,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-10-16 17:23:18,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 124. [2022-10-16 17:23:18,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 98 states have (on average 1.3673469387755102) internal successors, (134), 123 states have internal predecessors, (134), 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 17:23:18,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 134 transitions. [2022-10-16 17:23:18,744 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 134 transitions. Word has length 35 [2022-10-16 17:23:18,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:18,745 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 134 transitions. [2022-10-16 17:23:18,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 17:23:18,745 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2022-10-16 17:23:18,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 17:23:18,748 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:18,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:18,785 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 17:23:18,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:18,962 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:18,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:18,963 INFO L85 PathProgramCache]: Analyzing trace with hash -399305561, now seen corresponding path program 1 times [2022-10-16 17:23:18,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:18,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100306575] [2022-10-16 17:23:18,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:18,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:18,973 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:18,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324600271] [2022-10-16 17:23:18,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:18,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:18,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:18,975 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 17:23:18,979 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 17:23:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:19,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:23:19,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:19,095 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 17:23:19,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:19,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:19,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100306575] [2022-10-16 17:23:19,095 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:19,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324600271] [2022-10-16 17:23:19,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324600271] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:19,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:19,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:23:19,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192165170] [2022-10-16 17:23:19,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:19,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:23:19,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:19,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:23:19,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:23:19,098 INFO L87 Difference]: Start difference. First operand 124 states and 134 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 17:23:19,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:19,218 INFO L93 Difference]: Finished difference Result 124 states and 134 transitions. [2022-10-16 17:23:19,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:23:19,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 36 [2022-10-16 17:23:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:19,220 INFO L225 Difference]: With dead ends: 124 [2022-10-16 17:23:19,220 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 17:23:19,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:23:19,221 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 38 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:19,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 60 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:23:19,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 17:23:19,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2022-10-16 17:23:19,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 98 states have (on average 1.346938775510204) internal successors, (132), 122 states have internal predecessors, (132), 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 17:23:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 132 transitions. [2022-10-16 17:23:19,226 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 132 transitions. Word has length 36 [2022-10-16 17:23:19,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:19,227 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 132 transitions. [2022-10-16 17:23:19,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 17:23:19,227 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 132 transitions. [2022-10-16 17:23:19,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 17:23:19,228 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:19,228 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:19,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 17:23:19,440 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,SelfDestructingSolverStorable9 [2022-10-16 17:23:19,441 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:19,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:19,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1480553463, now seen corresponding path program 1 times [2022-10-16 17:23:19,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:19,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997246124] [2022-10-16 17:23:19,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:19,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:19,452 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:19,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067340259] [2022-10-16 17:23:19,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:19,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:19,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:19,454 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:19,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 17:23:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:19,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:23:19,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:19,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:19,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:19,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:19,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997246124] [2022-10-16 17:23:19,755 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:19,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067340259] [2022-10-16 17:23:19,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067340259] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:19,756 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:19,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 17:23:19,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585724984] [2022-10-16 17:23:19,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:19,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:23:19,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:19,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:23:19,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:23:19,758 INFO L87 Difference]: Start difference. First operand 123 states and 132 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 17:23:20,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:20,020 INFO L93 Difference]: Finished difference Result 141 states and 145 transitions. [2022-10-16 17:23:20,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 17:23:20,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 38 [2022-10-16 17:23:20,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:20,022 INFO L225 Difference]: With dead ends: 141 [2022-10-16 17:23:20,022 INFO L226 Difference]: Without dead ends: 136 [2022-10-16 17:23:20,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:23:20,023 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 194 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:20,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 75 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:23:20,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-10-16 17:23:20,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 128. [2022-10-16 17:23:20,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 106 states have (on average 1.2830188679245282) internal successors, (136), 127 states have internal predecessors, (136), 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 17:23:20,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 136 transitions. [2022-10-16 17:23:20,030 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 136 transitions. Word has length 38 [2022-10-16 17:23:20,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:20,030 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 136 transitions. [2022-10-16 17:23:20,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 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 17:23:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 136 transitions. [2022-10-16 17:23:20,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 17:23:20,031 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:20,032 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:20,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:20,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:20,245 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:20,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:20,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1347482948, now seen corresponding path program 1 times [2022-10-16 17:23:20,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:20,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809505972] [2022-10-16 17:23:20,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:20,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:20,257 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:20,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965318066] [2022-10-16 17:23:20,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:20,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:20,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:20,258 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:20,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 17:23:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:20,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:23:20,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:20,457 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 17:23:20,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:20,816 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 17:23:20,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:20,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809505972] [2022-10-16 17:23:20,816 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:20,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965318066] [2022-10-16 17:23:20,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965318066] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:20,817 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:20,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 17:23:20,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474758609] [2022-10-16 17:23:20,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:20,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:23:20,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:20,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:23:20,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:23:20,819 INFO L87 Difference]: Start difference. First operand 128 states and 136 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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 17:23:20,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:20,936 INFO L93 Difference]: Finished difference Result 128 states and 136 transitions. [2022-10-16 17:23:20,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:23:20,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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 39 [2022-10-16 17:23:20,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:20,938 INFO L225 Difference]: With dead ends: 128 [2022-10-16 17:23:20,938 INFO L226 Difference]: Without dead ends: 122 [2022-10-16 17:23:20,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:23:20,939 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 106 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:20,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 22 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 93 Invalid, 0 Unknown, 71 Unchecked, 0.1s Time] [2022-10-16 17:23:20,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-16 17:23:20,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-10-16 17:23:20,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 106 states have (on average 1.2075471698113207) internal successors, (128), 121 states have internal predecessors, (128), 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 17:23:20,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 128 transitions. [2022-10-16 17:23:20,945 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 128 transitions. Word has length 39 [2022-10-16 17:23:20,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:20,946 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 128 transitions. [2022-10-16 17:23:20,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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 17:23:20,946 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 128 transitions. [2022-10-16 17:23:20,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 17:23:20,947 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:20,947 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:20,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:21,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 17:23:21,161 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:21,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:21,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1831725260, now seen corresponding path program 1 times [2022-10-16 17:23:21,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:21,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400915788] [2022-10-16 17:23:21,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:21,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:21,172 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:21,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988969874] [2022-10-16 17:23:21,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:21,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:21,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:21,173 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:21,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 17:23:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:21,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:23:21,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:21,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:21,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:21,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400915788] [2022-10-16 17:23:21,424 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:21,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988969874] [2022-10-16 17:23:21,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988969874] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:21,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:21,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:23:21,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692255218] [2022-10-16 17:23:21,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:21,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:23:21,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:21,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:23:21,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:23:21,427 INFO L87 Difference]: Start difference. First operand 122 states and 128 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 17:23:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:21,563 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2022-10-16 17:23:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:23:21,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2022-10-16 17:23:21,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:21,565 INFO L225 Difference]: With dead ends: 122 [2022-10-16 17:23:21,565 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 17:23:21,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:23:21,566 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 66 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:21,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 17 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:23:21,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 17:23:21,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-10-16 17:23:21,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 106 states have (on average 1.1037735849056605) internal successors, (117), 113 states have internal predecessors, (117), 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 17:23:21,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 117 transitions. [2022-10-16 17:23:21,573 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 117 transitions. Word has length 47 [2022-10-16 17:23:21,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:21,573 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 117 transitions. [2022-10-16 17:23:21,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 17:23:21,573 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 117 transitions. [2022-10-16 17:23:21,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 17:23:21,574 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:21,574 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:21,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:21,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 17:23:21,788 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:21,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:21,789 INFO L85 PathProgramCache]: Analyzing trace with hash 51485530, now seen corresponding path program 1 times [2022-10-16 17:23:21,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:21,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253736761] [2022-10-16 17:23:21,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:21,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:21,801 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:21,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827994401] [2022-10-16 17:23:21,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:21,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:21,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:21,802 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:21,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 17:23:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:21,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:23:21,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:21,918 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:21,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:21,990 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:21,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:21,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253736761] [2022-10-16 17:23:21,991 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:21,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827994401] [2022-10-16 17:23:21,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827994401] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:21,991 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:21,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-10-16 17:23:21,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494122408] [2022-10-16 17:23:21,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:21,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:23:21,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:21,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:23:21,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:23:21,993 INFO L87 Difference]: Start difference. First operand 114 states and 117 transitions. Second operand has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 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 17:23:22,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:22,015 INFO L93 Difference]: Finished difference Result 184 states and 186 transitions. [2022-10-16 17:23:22,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:23:22,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 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 61 [2022-10-16 17:23:22,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:22,017 INFO L225 Difference]: With dead ends: 184 [2022-10-16 17:23:22,017 INFO L226 Difference]: Without dead ends: 183 [2022-10-16 17:23:22,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:23:22,019 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 32 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:22,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 199 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:23:22,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-10-16 17:23:22,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 171. [2022-10-16 17:23:22,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 163 states have (on average 1.1226993865030674) internal successors, (183), 170 states have internal predecessors, (183), 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 17:23:22,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 183 transitions. [2022-10-16 17:23:22,027 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 183 transitions. Word has length 61 [2022-10-16 17:23:22,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:22,027 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 183 transitions. [2022-10-16 17:23:22,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 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 17:23:22,027 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 183 transitions. [2022-10-16 17:23:22,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 17:23:22,028 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:22,028 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:22,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:22,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 17:23:22,243 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:22,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1611887138, now seen corresponding path program 1 times [2022-10-16 17:23:22,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:22,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127767761] [2022-10-16 17:23:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:22,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:22,257 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:22,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115687681] [2022-10-16 17:23:22,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:22,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:22,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:22,259 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:22,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 17:23:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:22,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:23:22,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:22,405 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:22,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:22,563 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:22,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:22,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127767761] [2022-10-16 17:23:22,564 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:22,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115687681] [2022-10-16 17:23:22,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115687681] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:22,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:22,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 17:23:22,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967516508] [2022-10-16 17:23:22,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:22,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:23:22,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:22,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:23:22,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:23:22,566 INFO L87 Difference]: Start difference. First operand 171 states and 183 transitions. Second operand has 8 states, 7 states have (on average 18.428571428571427) internal successors, (129), 8 states have internal predecessors, (129), 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 17:23:22,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:22,767 INFO L93 Difference]: Finished difference Result 175 states and 183 transitions. [2022-10-16 17:23:22,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:23:22,768 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.428571428571427) internal successors, (129), 8 states have internal predecessors, (129), 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 65 [2022-10-16 17:23:22,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:22,769 INFO L225 Difference]: With dead ends: 175 [2022-10-16 17:23:22,770 INFO L226 Difference]: Without dead ends: 170 [2022-10-16 17:23:22,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:23:22,771 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 194 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:22,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 60 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:23:22,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-10-16 17:23:22,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 169. [2022-10-16 17:23:22,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 163 states have (on average 1.0674846625766872) internal successors, (174), 168 states have internal predecessors, (174), 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 17:23:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 174 transitions. [2022-10-16 17:23:22,802 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 174 transitions. Word has length 65 [2022-10-16 17:23:22,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:22,803 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 174 transitions. [2022-10-16 17:23:22,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.428571428571427) internal successors, (129), 8 states have internal predecessors, (129), 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 17:23:22,803 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 174 transitions. [2022-10-16 17:23:22,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 17:23:22,804 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:22,804 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1] [2022-10-16 17:23:22,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:23,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 17:23:23,020 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:23,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:23,021 INFO L85 PathProgramCache]: Analyzing trace with hash -2110501157, now seen corresponding path program 1 times [2022-10-16 17:23:23,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:23,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752296902] [2022-10-16 17:23:23,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:23,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:23,037 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:23,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [688523209] [2022-10-16 17:23:23,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:23,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:23,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:23,038 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:23,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 17:23:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:23,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:23:23,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:23,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:24,059 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:24,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:24,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752296902] [2022-10-16 17:23:24,060 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:24,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688523209] [2022-10-16 17:23:24,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688523209] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:24,060 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:24,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 17:23:24,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504480148] [2022-10-16 17:23:24,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:24,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 17:23:24,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:24,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 17:23:24,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:23:24,062 INFO L87 Difference]: Start difference. First operand 169 states and 174 transitions. Second operand has 10 states, 9 states have (on average 22.333333333333332) internal successors, (201), 10 states have internal predecessors, (201), 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 17:23:24,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:24,218 INFO L93 Difference]: Finished difference Result 252 states and 261 transitions. [2022-10-16 17:23:24,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 17:23:24,218 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 22.333333333333332) internal successors, (201), 10 states have internal predecessors, (201), 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 101 [2022-10-16 17:23:24,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:24,220 INFO L225 Difference]: With dead ends: 252 [2022-10-16 17:23:24,220 INFO L226 Difference]: Without dead ends: 250 [2022-10-16 17:23:24,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:23:24,222 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 245 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 174 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:24,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 52 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 0 Unknown, 174 Unchecked, 0.1s Time] [2022-10-16 17:23:24,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-10-16 17:23:24,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 243. [2022-10-16 17:23:24,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 237 states have (on average 1.080168776371308) internal successors, (256), 242 states have internal predecessors, (256), 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 17:23:24,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 256 transitions. [2022-10-16 17:23:24,234 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 256 transitions. Word has length 101 [2022-10-16 17:23:24,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:24,234 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 256 transitions. [2022-10-16 17:23:24,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 22.333333333333332) internal successors, (201), 10 states have internal predecessors, (201), 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 17:23:24,234 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 256 transitions. [2022-10-16 17:23:24,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 17:23:24,241 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:24,241 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2022-10-16 17:23:24,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:24,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:24,455 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:24,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:24,456 INFO L85 PathProgramCache]: Analyzing trace with hash -967044771, now seen corresponding path program 1 times [2022-10-16 17:23:24,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:24,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099741] [2022-10-16 17:23:24,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:24,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:24,482 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:24,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515702046] [2022-10-16 17:23:24,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:24,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:24,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:24,484 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:24,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 17:23:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:24,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:23:24,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:24,893 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:24,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:26,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:26,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099741] [2022-10-16 17:23:26,928 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:26,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515702046] [2022-10-16 17:23:26,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515702046] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:26,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:26,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2022-10-16 17:23:26,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023294952] [2022-10-16 17:23:26,929 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:26,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 17:23:26,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:26,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 17:23:26,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:23:26,931 INFO L87 Difference]: Start difference. First operand 243 states and 256 transitions. Second operand has 15 states, 14 states have (on average 14.642857142857142) internal successors, (205), 15 states have internal predecessors, (205), 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 17:23:27,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:27,465 INFO L93 Difference]: Finished difference Result 245 states and 256 transitions. [2022-10-16 17:23:27,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:23:27,466 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 14.642857142857142) internal successors, (205), 15 states have internal predecessors, (205), 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 103 [2022-10-16 17:23:27,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:27,469 INFO L225 Difference]: With dead ends: 245 [2022-10-16 17:23:27,469 INFO L226 Difference]: Without dead ends: 244 [2022-10-16 17:23:27,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=171, Invalid=291, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:23:27,470 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 343 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 417 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:27,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 54 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 130 Invalid, 0 Unknown, 417 Unchecked, 0.1s Time] [2022-10-16 17:23:27,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-10-16 17:23:27,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 243. [2022-10-16 17:23:27,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 237 states have (on average 1.0675105485232068) internal successors, (253), 242 states have internal predecessors, (253), 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 17:23:27,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 253 transitions. [2022-10-16 17:23:27,481 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 253 transitions. Word has length 103 [2022-10-16 17:23:27,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:27,481 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 253 transitions. [2022-10-16 17:23:27,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 14.642857142857142) internal successors, (205), 15 states have internal predecessors, (205), 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 17:23:27,482 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 253 transitions. [2022-10-16 17:23:27,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 17:23:27,483 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:27,483 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2022-10-16 17:23:27,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:27,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 17:23:27,697 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:27,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:27,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1409955731, now seen corresponding path program 2 times [2022-10-16 17:23:27,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:27,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509686075] [2022-10-16 17:23:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:27,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:27,724 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:27,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1330661630] [2022-10-16 17:23:27,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:23:27,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:27,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:27,726 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:27,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 17:23:27,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:23:27,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:27,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 17:23:27,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:28,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:29,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:29,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509686075] [2022-10-16 17:23:29,785 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:29,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330661630] [2022-10-16 17:23:29,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330661630] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:29,785 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:29,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2022-10-16 17:23:29,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969363050] [2022-10-16 17:23:29,786 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:29,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 17:23:29,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:29,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 17:23:29,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:23:29,788 INFO L87 Difference]: Start difference. First operand 243 states and 253 transitions. Second operand has 15 states, 14 states have (on average 15.071428571428571) internal successors, (211), 15 states have internal predecessors, (211), 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 17:23:31,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:31,557 INFO L93 Difference]: Finished difference Result 245 states and 253 transitions. [2022-10-16 17:23:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 17:23:31,558 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 15.071428571428571) internal successors, (211), 15 states have internal predecessors, (211), 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 106 [2022-10-16 17:23:31,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:31,560 INFO L225 Difference]: With dead ends: 245 [2022-10-16 17:23:31,560 INFO L226 Difference]: Without dead ends: 244 [2022-10-16 17:23:31,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=262, Invalid=608, Unknown=0, NotChecked=0, Total=870 [2022-10-16 17:23:31,562 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 287 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 370 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:31,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 106 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 444 Invalid, 0 Unknown, 370 Unchecked, 0.3s Time] [2022-10-16 17:23:31,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-10-16 17:23:31,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 243. [2022-10-16 17:23:31,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 237 states have (on average 1.0548523206751055) internal successors, (250), 242 states have internal predecessors, (250), 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 17:23:31,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 250 transitions. [2022-10-16 17:23:31,573 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 250 transitions. Word has length 106 [2022-10-16 17:23:31,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:31,574 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 250 transitions. [2022-10-16 17:23:31,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 15.071428571428571) internal successors, (211), 15 states have internal predecessors, (211), 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 17:23:31,574 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 250 transitions. [2022-10-16 17:23:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 17:23:31,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:31,576 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2022-10-16 17:23:31,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:31,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 17:23:31,790 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:31,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:31,791 INFO L85 PathProgramCache]: Analyzing trace with hash -890212807, now seen corresponding path program 1 times [2022-10-16 17:23:31,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:31,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681909977] [2022-10-16 17:23:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:31,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:31,803 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:31,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [207950087] [2022-10-16 17:23:31,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:31,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:31,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:31,805 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:31,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 17:23:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:31,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 17:23:31,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:32,004 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 17:23:32,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:32,344 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 17:23:32,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:32,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681909977] [2022-10-16 17:23:32,345 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:32,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207950087] [2022-10-16 17:23:32,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207950087] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:32,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:32,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 17:23:32,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885056377] [2022-10-16 17:23:32,346 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:32,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 17:23:32,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:32,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 17:23:32,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:23:32,347 INFO L87 Difference]: Start difference. First operand 243 states and 250 transitions. Second operand has 10 states, 9 states have (on average 24.77777777777778) internal successors, (223), 10 states have internal predecessors, (223), 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 17:23:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:32,864 INFO L93 Difference]: Finished difference Result 298 states and 305 transitions. [2022-10-16 17:23:32,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:23:32,867 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 24.77777777777778) internal successors, (223), 10 states have internal predecessors, (223), 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 112 [2022-10-16 17:23:32,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:32,872 INFO L225 Difference]: With dead ends: 298 [2022-10-16 17:23:32,873 INFO L226 Difference]: Without dead ends: 295 [2022-10-16 17:23:32,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-10-16 17:23:32,874 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 200 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:32,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 121 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:23:32,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-10-16 17:23:32,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 288. [2022-10-16 17:23:32,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 282 states have (on average 1.0460992907801419) internal successors, (295), 287 states have internal predecessors, (295), 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 17:23:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 295 transitions. [2022-10-16 17:23:32,895 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 295 transitions. Word has length 112 [2022-10-16 17:23:32,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:32,896 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 295 transitions. [2022-10-16 17:23:32,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 24.77777777777778) internal successors, (223), 10 states have internal predecessors, (223), 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 17:23:32,896 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 295 transitions. [2022-10-16 17:23:32,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-16 17:23:32,898 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:32,899 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2022-10-16 17:23:32,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:33,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:33,114 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:33,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:33,115 INFO L85 PathProgramCache]: Analyzing trace with hash -13589749, now seen corresponding path program 2 times [2022-10-16 17:23:33,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:33,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220011251] [2022-10-16 17:23:33,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:33,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:33,128 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:33,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566204536] [2022-10-16 17:23:33,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:23:33,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:33,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:33,130 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:33,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 17:23:33,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:23:33,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:33,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:23:33,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:33,397 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:33,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:33,638 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:33,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:33,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220011251] [2022-10-16 17:23:33,639 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:33,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566204536] [2022-10-16 17:23:33,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566204536] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:33,639 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:33,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 17:23:33,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174665497] [2022-10-16 17:23:33,640 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:33,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:23:33,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:33,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:23:33,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:23:33,642 INFO L87 Difference]: Start difference. First operand 288 states and 295 transitions. Second operand has 12 states, 11 states have (on average 29.545454545454547) internal successors, (325), 12 states have internal predecessors, (325), 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 17:23:33,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:33,689 INFO L93 Difference]: Finished difference Result 388 states and 393 transitions. [2022-10-16 17:23:33,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 17:23:33,690 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 29.545454545454547) internal successors, (325), 12 states have internal predecessors, (325), 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 163 [2022-10-16 17:23:33,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:33,692 INFO L225 Difference]: With dead ends: 388 [2022-10-16 17:23:33,692 INFO L226 Difference]: Without dead ends: 387 [2022-10-16 17:23:33,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:23:33,693 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 68 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:33,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 392 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:23:33,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-10-16 17:23:33,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 373. [2022-10-16 17:23:33,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 367 states have (on average 1.0544959128065394) internal successors, (387), 372 states have internal predecessors, (387), 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 17:23:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 387 transitions. [2022-10-16 17:23:33,710 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 387 transitions. Word has length 163 [2022-10-16 17:23:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:33,711 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 387 transitions. [2022-10-16 17:23:33,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 29.545454545454547) internal successors, (325), 12 states have internal predecessors, (325), 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 17:23:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 387 transitions. [2022-10-16 17:23:33,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-10-16 17:23:33,714 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:33,714 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1] [2022-10-16 17:23:33,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-10-16 17:23:33,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:33,928 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:33,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:33,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2013260750, now seen corresponding path program 2 times [2022-10-16 17:23:33,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:33,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777127549] [2022-10-16 17:23:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:33,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:33,942 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:33,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2116510490] [2022-10-16 17:23:33,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:23:33,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:33,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:33,944 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:33,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 17:23:34,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:23:34,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:34,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:23:34,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-10-16 17:23:34,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:34,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:34,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777127549] [2022-10-16 17:23:34,333 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:34,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116510490] [2022-10-16 17:23:34,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116510490] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:34,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:34,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:23:34,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046638160] [2022-10-16 17:23:34,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:34,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:23:34,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:34,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:23:34,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:23:34,335 INFO L87 Difference]: Start difference. First operand 373 states and 387 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 17:23:34,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:34,383 INFO L93 Difference]: Finished difference Result 373 states and 387 transitions. [2022-10-16 17:23:34,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:23:34,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 205 [2022-10-16 17:23:34,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:34,386 INFO L225 Difference]: With dead ends: 373 [2022-10-16 17:23:34,387 INFO L226 Difference]: Without dead ends: 372 [2022-10-16 17:23:34,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:23:34,388 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 31 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:34,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 16 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-10-16 17:23:34,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-10-16 17:23:34,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2022-10-16 17:23:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 367 states have (on average 1.0408719346049047) internal successors, (382), 371 states have internal predecessors, (382), 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 17:23:34,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 382 transitions. [2022-10-16 17:23:34,404 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 382 transitions. Word has length 205 [2022-10-16 17:23:34,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:34,404 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 382 transitions. [2022-10-16 17:23:34,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 17:23:34,405 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 382 transitions. [2022-10-16 17:23:34,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-10-16 17:23:34,407 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:34,407 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1] [2022-10-16 17:23:34,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:34,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:34,613 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:34,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:34,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2127788930, now seen corresponding path program 3 times [2022-10-16 17:23:34,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:34,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340237983] [2022-10-16 17:23:34,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:34,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:34,628 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:34,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851099506] [2022-10-16 17:23:34,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:23:34,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:34,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:34,630 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:34,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 17:23:36,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-10-16 17:23:36,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:36,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 17:23:36,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 522 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:37,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 522 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:42,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:42,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340237983] [2022-10-16 17:23:42,303 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:42,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851099506] [2022-10-16 17:23:42,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851099506] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:42,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:42,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2022-10-16 17:23:42,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823816516] [2022-10-16 17:23:42,304 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:42,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 17:23:42,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:42,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 17:23:42,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=413, Unknown=0, NotChecked=0, Total=600 [2022-10-16 17:23:42,307 INFO L87 Difference]: Start difference. First operand 372 states and 382 transitions. Second operand has 25 states, 24 states have (on average 17.291666666666668) internal successors, (415), 25 states have internal predecessors, (415), 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 17:23:52,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:52,399 INFO L93 Difference]: Finished difference Result 419 states and 434 transitions. [2022-10-16 17:23:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 17:23:52,400 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 17.291666666666668) internal successors, (415), 25 states have internal predecessors, (415), 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 208 [2022-10-16 17:23:52,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:52,402 INFO L225 Difference]: With dead ends: 419 [2022-10-16 17:23:52,402 INFO L226 Difference]: Without dead ends: 418 [2022-10-16 17:23:52,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 407 SyntacticMatches, 12 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 971 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=850, Invalid=1700, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 17:23:52,405 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1544 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1326 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:52,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 93 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 380 Invalid, 0 Unknown, 1326 Unchecked, 0.4s Time] [2022-10-16 17:23:52,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-10-16 17:23:52,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 417. [2022-10-16 17:23:52,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 412 states have (on average 1.0388349514563107) internal successors, (428), 416 states have internal predecessors, (428), 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 17:23:52,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 428 transitions. [2022-10-16 17:23:52,425 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 428 transitions. Word has length 208 [2022-10-16 17:23:52,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:52,425 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 428 transitions. [2022-10-16 17:23:52,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 17.291666666666668) internal successors, (415), 25 states have internal predecessors, (415), 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 17:23:52,426 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 428 transitions. [2022-10-16 17:23:52,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-10-16 17:23:52,429 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:52,429 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1] [2022-10-16 17:23:52,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:52,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 17:23:52,638 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:52,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:52,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1599755330, now seen corresponding path program 2 times [2022-10-16 17:23:52,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:52,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013355213] [2022-10-16 17:23:52,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:52,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:52,655 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:52,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381091548] [2022-10-16 17:23:52,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:23:52,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:52,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:52,657 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:52,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 17:23:52,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:23:52,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:52,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:23:52,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:52,893 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-10-16 17:23:52,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:52,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:52,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013355213] [2022-10-16 17:23:52,894 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:52,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381091548] [2022-10-16 17:23:52,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381091548] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:52,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:52,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:23:52,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358805440] [2022-10-16 17:23:52,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:52,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:23:52,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:52,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:23:52,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:23:52,899 INFO L87 Difference]: Start difference. First operand 417 states and 428 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 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 17:23:52,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:52,944 INFO L93 Difference]: Finished difference Result 417 states and 428 transitions. [2022-10-16 17:23:52,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:23:52,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 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 271 [2022-10-16 17:23:52,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:52,953 INFO L225 Difference]: With dead ends: 417 [2022-10-16 17:23:52,954 INFO L226 Difference]: Without dead ends: 416 [2022-10-16 17:23:52,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:23:52,955 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 28 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:52,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 24 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2022-10-16 17:23:52,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-10-16 17:23:52,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2022-10-16 17:23:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 412 states have (on average 1.0266990291262137) internal successors, (423), 415 states have internal predecessors, (423), 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 17:23:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 423 transitions. [2022-10-16 17:23:52,986 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 423 transitions. Word has length 271 [2022-10-16 17:23:52,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:52,986 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 423 transitions. [2022-10-16 17:23:52,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 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 17:23:52,987 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 423 transitions. [2022-10-16 17:23:52,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-10-16 17:23:52,990 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:52,991 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1] [2022-10-16 17:23:52,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:53,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 17:23:53,197 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:53,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:53,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1801486384, now seen corresponding path program 1 times [2022-10-16 17:23:53,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:53,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100160889] [2022-10-16 17:23:53,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:53,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:53,220 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:53,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [964816415] [2022-10-16 17:23:53,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:53,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:53,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:53,221 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:53,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 17:23:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:53,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 17:23:53,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1000 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2022-10-16 17:23:53,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:23:53,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:53,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100160889] [2022-10-16 17:23:53,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:53,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964816415] [2022-10-16 17:23:53,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964816415] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:23:53,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:23:53,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:23:53,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830578336] [2022-10-16 17:23:53,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:23:53,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:23:53,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:53,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:23:53,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:23:53,342 INFO L87 Difference]: Start difference. First operand 416 states and 423 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 17:23:53,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:53,385 INFO L93 Difference]: Finished difference Result 416 states and 423 transitions. [2022-10-16 17:23:53,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:23:53,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 280 [2022-10-16 17:23:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:53,389 INFO L225 Difference]: With dead ends: 416 [2022-10-16 17:23:53,389 INFO L226 Difference]: Without dead ends: 415 [2022-10-16 17:23:53,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 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 17:23:53,390 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 25 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:53,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 13 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:23:53,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-10-16 17:23:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2022-10-16 17:23:53,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 412 states have (on average 1.016990291262136) internal successors, (419), 414 states have internal predecessors, (419), 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 17:23:53,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 419 transitions. [2022-10-16 17:23:53,421 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 419 transitions. Word has length 280 [2022-10-16 17:23:53,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:53,421 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 419 transitions. [2022-10-16 17:23:53,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 17:23:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 419 transitions. [2022-10-16 17:23:53,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-10-16 17:23:53,430 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:53,430 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1] [2022-10-16 17:23:53,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:53,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:53,643 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:53,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:53,644 INFO L85 PathProgramCache]: Analyzing trace with hash -356593038, now seen corresponding path program 2 times [2022-10-16 17:23:53,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:53,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186357240] [2022-10-16 17:23:53,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:53,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:53,662 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:53,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604551933] [2022-10-16 17:23:53,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:23:53,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:53,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:53,664 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:53,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 17:23:54,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:23:54,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:54,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 17:23:54,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 0 proven. 1016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:54,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:55,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 0 proven. 1016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:55,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:55,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186357240] [2022-10-16 17:23:55,627 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:55,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604551933] [2022-10-16 17:23:55,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604551933] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:55,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:55,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2022-10-16 17:23:55,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879731020] [2022-10-16 17:23:55,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:55,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 17:23:55,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:55,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 17:23:55,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:23:55,630 INFO L87 Difference]: Start difference. First operand 415 states and 419 transitions. Second operand has 20 states, 19 states have (on average 29.63157894736842) internal successors, (563), 20 states have internal predecessors, (563), 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 17:23:57,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:57,697 INFO L93 Difference]: Finished difference Result 639 states and 648 transitions. [2022-10-16 17:23:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 17:23:57,698 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 29.63157894736842) internal successors, (563), 20 states have internal predecessors, (563), 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 282 [2022-10-16 17:23:57,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:57,703 INFO L225 Difference]: With dead ends: 639 [2022-10-16 17:23:57,704 INFO L226 Difference]: Without dead ends: 638 [2022-10-16 17:23:57,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=278, Invalid=478, Unknown=0, NotChecked=0, Total=756 [2022-10-16 17:23:57,705 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 491 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 2556 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:57,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 487 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2556 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 17:23:57,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-10-16 17:23:57,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 625. [2022-10-16 17:23:57,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 622 states have (on average 1.0257234726688103) internal successors, (638), 624 states have internal predecessors, (638), 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 17:23:57,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 638 transitions. [2022-10-16 17:23:57,740 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 638 transitions. Word has length 282 [2022-10-16 17:23:57,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:57,741 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 638 transitions. [2022-10-16 17:23:57,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 29.63157894736842) internal successors, (563), 20 states have internal predecessors, (563), 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 17:23:57,741 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 638 transitions. [2022-10-16 17:23:57,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-10-16 17:23:57,744 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:57,744 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2022-10-16 17:23:57,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:57,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:57,950 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:23:57,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:57,951 INFO L85 PathProgramCache]: Analyzing trace with hash -697088979, now seen corresponding path program 3 times [2022-10-16 17:23:57,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:57,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342519369] [2022-10-16 17:23:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:57,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:57,970 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:57,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1736130250] [2022-10-16 17:23:57,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:23:57,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:57,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:57,972 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:57,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 17:23:58,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 17:23:58,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:58,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 17:23:58,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 0 proven. 1780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:59,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 0 proven. 1780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:59,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:59,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342519369] [2022-10-16 17:23:59,982 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:59,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736130250] [2022-10-16 17:23:59,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736130250] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:59,983 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:59,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2022-10-16 17:23:59,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795961647] [2022-10-16 17:23:59,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:59,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 17:23:59,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:59,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 17:23:59,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:23:59,986 INFO L87 Difference]: Start difference. First operand 625 states and 638 transitions. Second operand has 24 states, 23 states have (on average 31.869565217391305) internal successors, (733), 24 states have internal predecessors, (733), 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 17:24:00,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:24:00,091 INFO L93 Difference]: Finished difference Result 793 states and 804 transitions. [2022-10-16 17:24:00,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 17:24:00,092 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 31.869565217391305) internal successors, (733), 24 states have internal predecessors, (733), 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 367 [2022-10-16 17:24:00,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:24:00,102 INFO L225 Difference]: With dead ends: 793 [2022-10-16 17:24:00,102 INFO L226 Difference]: Without dead ends: 792 [2022-10-16 17:24:00,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:24:00,103 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 135 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:24:00,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 771 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:24:00,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2022-10-16 17:24:00,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 778. [2022-10-16 17:24:00,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 775 states have (on average 1.0219354838709678) internal successors, (792), 777 states have internal predecessors, (792), 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 17:24:00,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 792 transitions. [2022-10-16 17:24:00,135 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 792 transitions. Word has length 367 [2022-10-16 17:24:00,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:24:00,136 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 792 transitions. [2022-10-16 17:24:00,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 31.869565217391305) internal successors, (733), 24 states have internal predecessors, (733), 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 17:24:00,136 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 792 transitions. [2022-10-16 17:24:00,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-10-16 17:24:00,139 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:24:00,140 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1] [2022-10-16 17:24:00,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 17:24:00,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 17:24:00,345 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-10-16 17:24:00,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:24:00,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1556302240, now seen corresponding path program 4 times [2022-10-16 17:24:00,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:24:00,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80577822] [2022-10-16 17:24:00,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:24:00,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:24:00,382 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:24:00,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394391126] [2022-10-16 17:24:00,383 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:24:00,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:24:00,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:24:00,385 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:24:00,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 17:24:01,577 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:24:01,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:24:01,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 17:24:01,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:24:02,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 0 proven. 2268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:24:02,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:24:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 0 proven. 2268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:24:07,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:24:07,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80577822] [2022-10-16 17:24:07,272 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:24:07,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394391126] [2022-10-16 17:24:07,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394391126] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:24:07,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:24:07,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2022-10-16 17:24:07,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840174850] [2022-10-16 17:24:07,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:24:07,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 17:24:07,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:24:07,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 17:24:07,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=763, Unknown=0, NotChecked=0, Total=992 [2022-10-16 17:24:07,276 INFO L87 Difference]: Start difference. First operand 778 states and 792 transitions. Second operand has 32 states, 31 states have (on average 26.548387096774192) internal successors, (823), 32 states have internal predecessors, (823), 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 17:24:27,723 WARN L233 SmtUtils]: Spent 17.32s on a formula simplification. DAG size of input: 171 DAG size of output: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:24:38,662 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification. DAG size of input: 173 DAG size of output: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:24:50,773 WARN L233 SmtUtils]: Spent 9.25s on a formula simplification. DAG size of input: 166 DAG size of output: 35 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:25:12,193 WARN L233 SmtUtils]: Spent 21.01s on a formula simplification. DAG size of input: 172 DAG size of output: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:25:41,009 WARN L233 SmtUtils]: Spent 14.87s on a formula simplification. DAG size of input: 151 DAG size of output: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:26:12,912 WARN L233 SmtUtils]: Spent 22.42s on a formula simplification. DAG size of input: 141 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:26:29,901 WARN L233 SmtUtils]: Spent 11.06s on a formula simplification. DAG size of input: 137 DAG size of output: 65 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:26:44,013 WARN L233 SmtUtils]: Spent 13.67s on a formula simplification. DAG size of input: 143 DAG size of output: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:26:58,491 WARN L233 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 126 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:27:12,422 WARN L233 SmtUtils]: Spent 11.60s on a formula simplification. DAG size of input: 126 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:27:26,094 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 128 DAG size of output: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 17:27:42,356 WARN L233 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 111 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)