/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/loop-lit/gcnr2008.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:29:29,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:29:29,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:29:29,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:29:29,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:29:29,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:29:29,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:29:29,876 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 14:29:29,928 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:29:29,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:29:29,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:29:29,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:29:29,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:29:29,931 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:29:29,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:29:29,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:29:29,935 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:29:29,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:29:29,936 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:29:29,936 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:29:29,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:29:29,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:29:29,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:29:29,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:29:29,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:29:29,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:29:29,938 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:29:29,938 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:29:29,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:29:29,939 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:29:29,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:29:29,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:29:29,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:29:29,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:29:29,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:29:29,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:29:29,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:29:29,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:29:29,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:29:29,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:29:29,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:29:29,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:29:30,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:29:30,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:29:30,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:29:30,328 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:29:30,329 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:29:30,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gcnr2008.i [2022-10-16 14:29:30,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ec3214b/f9d948b7ddc444bd9a750e30278961bd/FLAG05927ad46 [2022-10-16 14:29:31,180 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:29:31,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gcnr2008.i [2022-10-16 14:29:31,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ec3214b/f9d948b7ddc444bd9a750e30278961bd/FLAG05927ad46 [2022-10-16 14:29:31,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ec3214b/f9d948b7ddc444bd9a750e30278961bd [2022-10-16 14:29:31,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:29:31,230 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:29:31,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:29:31,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:29:31,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:29:31,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a78130a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31, skipping insertion in model container [2022-10-16 14:29:31,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:29:31,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:29:31,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gcnr2008.i[895,908] [2022-10-16 14:29:31,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:29:31,556 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:29:31,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gcnr2008.i[895,908] [2022-10-16 14:29:31,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:29:31,616 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:29:31,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31 WrapperNode [2022-10-16 14:29:31,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:29:31,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:29:31,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:29:31,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:29:31,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,666 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2022-10-16 14:29:31,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:29:31,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:29:31,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:29:31,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:29:31,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,713 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:29:31,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:29:31,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:29:31,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:29:31,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (1/1) ... [2022-10-16 14:29:31,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:29:31,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:31,764 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 14:29:31,791 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 14:29:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:29:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:29:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:29:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:29:31,925 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:29:31,928 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:29:32,178 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:29:32,185 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:29:32,186 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 14:29:32,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:32 BoogieIcfgContainer [2022-10-16 14:29:32,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:29:32,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:29:32,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:29:32,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:29:32,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:29:31" (1/3) ... [2022-10-16 14:29:32,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efda2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:32, skipping insertion in model container [2022-10-16 14:29:32,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:31" (2/3) ... [2022-10-16 14:29:32,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efda2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:32, skipping insertion in model container [2022-10-16 14:29:32,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:32" (3/3) ... [2022-10-16 14:29:32,198 INFO L112 eAbstractionObserver]: Analyzing ICFG gcnr2008.i [2022-10-16 14:29:32,233 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:29:32,233 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-10-16 14:29:32,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:29:32,373 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;@45436dc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:29:32,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-10-16 14:29:32,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 51 states have internal predecessors, (59), 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 14:29:32,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 14:29:32,405 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:32,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 14:29:32,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:32,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:32,420 INFO L85 PathProgramCache]: Analyzing trace with hash 889571273, now seen corresponding path program 1 times [2022-10-16 14:29:32,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:32,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84222457] [2022-10-16 14:29:32,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:32,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:32,825 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 14:29:32,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:32,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84222457] [2022-10-16 14:29:32,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84222457] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:32,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:32,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:29:32,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138342746] [2022-10-16 14:29:32,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:32,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:29:32,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:32,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:29:32,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:29:32,872 INFO L87 Difference]: Start difference. First operand has 52 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 51 states have internal predecessors, (59), 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 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 14:29:32,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:32,986 INFO L93 Difference]: Finished difference Result 134 states and 161 transitions. [2022-10-16 14:29:32,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:29:32,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 14:29:32,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:32,999 INFO L225 Difference]: With dead ends: 134 [2022-10-16 14:29:33,000 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 14:29:33,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 14:29:33,008 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 34 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:33,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 113 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:33,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 14:29:33,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 64. [2022-10-16 14:29:33,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.7173913043478262) internal successors, (79), 63 states have internal predecessors, (79), 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 14:29:33,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 79 transitions. [2022-10-16 14:29:33,056 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 79 transitions. Word has length 6 [2022-10-16 14:29:33,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:33,056 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 79 transitions. [2022-10-16 14:29:33,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 14:29:33,057 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 79 transitions. [2022-10-16 14:29:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:29:33,057 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:33,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:33,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:29:33,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:33,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:33,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1806916210, now seen corresponding path program 1 times [2022-10-16 14:29:33,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:33,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749780807] [2022-10-16 14:29:33,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:33,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:33,145 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 14:29:33,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:33,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749780807] [2022-10-16 14:29:33,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749780807] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:33,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:33,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:29:33,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050793397] [2022-10-16 14:29:33,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:33,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:29:33,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:33,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:29:33,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:29:33,150 INFO L87 Difference]: Start difference. First operand 64 states and 79 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:33,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:33,195 INFO L93 Difference]: Finished difference Result 91 states and 112 transitions. [2022-10-16 14:29:33,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:29:33,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 14:29:33,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:33,198 INFO L225 Difference]: With dead ends: 91 [2022-10-16 14:29:33,198 INFO L226 Difference]: Without dead ends: 85 [2022-10-16 14:29:33,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 14:29:33,201 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 38 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:33,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 81 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:33,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-16 14:29:33,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2022-10-16 14:29:33,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 66 states have (on average 1.5606060606060606) internal successors, (103), 83 states have internal predecessors, (103), 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 14:29:33,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 103 transitions. [2022-10-16 14:29:33,213 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 103 transitions. Word has length 7 [2022-10-16 14:29:33,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:33,214 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 103 transitions. [2022-10-16 14:29:33,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:33,214 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 103 transitions. [2022-10-16 14:29:33,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:29:33,215 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:33,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:33,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:29:33,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:33,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:33,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1000865417, now seen corresponding path program 1 times [2022-10-16 14:29:33,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:33,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966166513] [2022-10-16 14:29:33,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:33,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:33,428 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 14:29:33,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:33,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966166513] [2022-10-16 14:29:33,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966166513] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:33,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:33,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:29:33,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861931030] [2022-10-16 14:29:33,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:33,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:29:33,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:33,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:29:33,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:29:33,434 INFO L87 Difference]: Start difference. First operand 84 states and 103 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 14:29:33,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:33,551 INFO L93 Difference]: Finished difference Result 91 states and 113 transitions. [2022-10-16 14:29:33,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:29:33,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-10-16 14:29:33,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:33,553 INFO L225 Difference]: With dead ends: 91 [2022-10-16 14:29:33,553 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 14:29:33,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 14:29:33,555 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 28 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:33,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 90 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:33,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 14:29:33,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2022-10-16 14:29:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 69 states have (on average 1.5507246376811594) internal successors, (107), 86 states have internal predecessors, (107), 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 14:29:33,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 107 transitions. [2022-10-16 14:29:33,566 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 107 transitions. Word has length 10 [2022-10-16 14:29:33,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:33,567 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 107 transitions. [2022-10-16 14:29:33,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 14:29:33,567 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 107 transitions. [2022-10-16 14:29:33,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:29:33,568 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:33,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:33,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:29:33,569 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:33,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:33,570 INFO L85 PathProgramCache]: Analyzing trace with hash 962056961, now seen corresponding path program 1 times [2022-10-16 14:29:33,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:33,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958231087] [2022-10-16 14:29:33,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:33,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:33,641 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 14:29:33,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:33,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958231087] [2022-10-16 14:29:33,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958231087] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:33,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:33,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:29:33,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279891549] [2022-10-16 14:29:33,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:33,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:29:33,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:33,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:29:33,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:29:33,645 INFO L87 Difference]: Start difference. First operand 87 states and 107 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:33,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:33,707 INFO L93 Difference]: Finished difference Result 88 states and 107 transitions. [2022-10-16 14:29:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:29:33,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 14:29:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:33,710 INFO L225 Difference]: With dead ends: 88 [2022-10-16 14:29:33,710 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 14:29:33,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:29:33,713 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 83 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:33,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 78 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:33,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 14:29:33,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-10-16 14:29:33,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 69 states have (on average 1.5072463768115942) internal successors, (104), 85 states have internal predecessors, (104), 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 14:29:33,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 104 transitions. [2022-10-16 14:29:33,725 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 104 transitions. Word has length 11 [2022-10-16 14:29:33,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:33,726 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 104 transitions. [2022-10-16 14:29:33,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:33,726 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 104 transitions. [2022-10-16 14:29:33,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:29:33,727 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:33,727 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:33,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:29:33,728 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:33,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:33,729 INFO L85 PathProgramCache]: Analyzing trace with hash 392575635, now seen corresponding path program 1 times [2022-10-16 14:29:33,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:33,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815783145] [2022-10-16 14:29:33,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:33,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:33,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:33,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:33,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815783145] [2022-10-16 14:29:33,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815783145] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:33,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872299234] [2022-10-16 14:29:33,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:33,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:33,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:33,944 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 14:29:33,966 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 14:29:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:33,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:29:34,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:34,081 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:34,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:34,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:34,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872299234] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:34,147 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:34,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-16 14:29:34,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772791453] [2022-10-16 14:29:34,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:34,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:29:34,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:34,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:29:34,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:29:34,155 INFO L87 Difference]: Start difference. First operand 86 states and 104 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 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 14:29:34,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:34,310 INFO L93 Difference]: Finished difference Result 244 states and 305 transitions. [2022-10-16 14:29:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:29:34,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 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 16 [2022-10-16 14:29:34,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:34,316 INFO L225 Difference]: With dead ends: 244 [2022-10-16 14:29:34,316 INFO L226 Difference]: Without dead ends: 240 [2022-10-16 14:29:34,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:29:34,323 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 336 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:34,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 224 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:34,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-10-16 14:29:34,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 202. [2022-10-16 14:29:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 185 states have (on average 1.5513513513513513) internal successors, (287), 201 states have internal predecessors, (287), 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 14:29:34,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 287 transitions. [2022-10-16 14:29:34,368 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 287 transitions. Word has length 16 [2022-10-16 14:29:34,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:34,369 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 287 transitions. [2022-10-16 14:29:34,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 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 14:29:34,370 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 287 transitions. [2022-10-16 14:29:34,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:29:34,373 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:34,373 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:34,407 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 14:29:34,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:34,574 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:34,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:34,576 INFO L85 PathProgramCache]: Analyzing trace with hash -715057125, now seen corresponding path program 1 times [2022-10-16 14:29:34,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:34,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809229727] [2022-10-16 14:29:34,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:34,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:34,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:34,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:34,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809229727] [2022-10-16 14:29:34,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809229727] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:34,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12074488] [2022-10-16 14:29:34,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:34,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:34,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:34,686 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 14:29:34,695 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 14:29:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:34,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:29:34,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:34,768 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:34,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:29:34,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12074488] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:34,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:29:34,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 14:29:34,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386143885] [2022-10-16 14:29:34,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:34,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:29:34,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:34,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:29:34,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:29:34,774 INFO L87 Difference]: Start difference. First operand 202 states and 287 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:34,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:34,799 INFO L93 Difference]: Finished difference Result 202 states and 287 transitions. [2022-10-16 14:29:34,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:29:34,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-10-16 14:29:34,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:34,802 INFO L225 Difference]: With dead ends: 202 [2022-10-16 14:29:34,802 INFO L226 Difference]: Without dead ends: 200 [2022-10-16 14:29:34,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:29:34,810 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 75 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:34,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 80 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:34,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-10-16 14:29:34,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-10-16 14:29:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 185 states have (on average 1.4864864864864864) internal successors, (275), 199 states have internal predecessors, (275), 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 14:29:34,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 275 transitions. [2022-10-16 14:29:34,832 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 275 transitions. Word has length 17 [2022-10-16 14:29:34,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:34,832 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 275 transitions. [2022-10-16 14:29:34,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:34,833 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 275 transitions. [2022-10-16 14:29:34,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:29:34,833 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:34,834 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:34,870 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 14:29:35,047 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,SelfDestructingSolverStorable5 [2022-10-16 14:29:35,048 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:35,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:35,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1132838901, now seen corresponding path program 1 times [2022-10-16 14:29:35,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:35,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752904523] [2022-10-16 14:29:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:35,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:35,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:35,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752904523] [2022-10-16 14:29:35,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752904523] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:35,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271692873] [2022-10-16 14:29:35,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:35,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:35,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:35,169 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 14:29:35,194 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 14:29:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:35,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:29:35,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:35,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:35,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271692873] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:35,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:35,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-10-16 14:29:35,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641269038] [2022-10-16 14:29:35,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:35,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:29:35,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:35,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:29:35,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:29:35,334 INFO L87 Difference]: Start difference. First operand 200 states and 275 transitions. Second operand has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 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 14:29:35,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:35,616 INFO L93 Difference]: Finished difference Result 562 states and 782 transitions. [2022-10-16 14:29:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:29:35,616 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 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 17 [2022-10-16 14:29:35,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:35,619 INFO L225 Difference]: With dead ends: 562 [2022-10-16 14:29:35,619 INFO L226 Difference]: Without dead ends: 474 [2022-10-16 14:29:35,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=159, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:29:35,622 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 339 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:35,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 229 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:29:35,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-10-16 14:29:35,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 371. [2022-10-16 14:29:35,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 356 states have (on average 1.5) internal successors, (534), 370 states have internal predecessors, (534), 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 14:29:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 534 transitions. [2022-10-16 14:29:35,640 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 534 transitions. Word has length 17 [2022-10-16 14:29:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:35,640 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 534 transitions. [2022-10-16 14:29:35,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.9) internal successors, (49), 11 states have internal predecessors, (49), 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 14:29:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 534 transitions. [2022-10-16 14:29:35,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:29:35,642 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:35,642 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:35,678 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 14:29:35,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:35,857 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:35,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:35,861 INFO L85 PathProgramCache]: Analyzing trace with hash 758267612, now seen corresponding path program 1 times [2022-10-16 14:29:35,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:35,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379500432] [2022-10-16 14:29:35,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:35,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:35,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:35,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379500432] [2022-10-16 14:29:35,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379500432] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:35,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:35,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:35,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140195271] [2022-10-16 14:29:35,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:35,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:35,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:35,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:35,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:35,894 INFO L87 Difference]: Start difference. First operand 371 states and 534 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:35,915 INFO L93 Difference]: Finished difference Result 371 states and 534 transitions. [2022-10-16 14:29:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:35,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2022-10-16 14:29:35,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:35,918 INFO L225 Difference]: With dead ends: 371 [2022-10-16 14:29:35,918 INFO L226 Difference]: Without dead ends: 369 [2022-10-16 14:29:35,919 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 14:29:35,919 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 31 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:35,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 34 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:35,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-10-16 14:29:35,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2022-10-16 14:29:35,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 356 states have (on average 1.449438202247191) internal successors, (516), 368 states have internal predecessors, (516), 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 14:29:35,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 516 transitions. [2022-10-16 14:29:35,934 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 516 transitions. Word has length 18 [2022-10-16 14:29:35,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:35,935 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 516 transitions. [2022-10-16 14:29:35,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:35,935 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 516 transitions. [2022-10-16 14:29:35,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:29:35,936 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:35,936 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:29:35,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:29:35,937 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:35,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:35,937 INFO L85 PathProgramCache]: Analyzing trace with hash 9969352, now seen corresponding path program 1 times [2022-10-16 14:29:35,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:35,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787041639] [2022-10-16 14:29:35,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:35,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:36,042 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:36,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:36,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787041639] [2022-10-16 14:29:36,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787041639] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:36,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913089166] [2022-10-16 14:29:36,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:36,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:36,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:36,045 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 14:29:36,052 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 14:29:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:36,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:29:36,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:36,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:36,223 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:36,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913089166] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:36,224 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:36,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2022-10-16 14:29:36,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089430775] [2022-10-16 14:29:36,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:36,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:29:36,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:29:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=73, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:29:36,226 INFO L87 Difference]: Start difference. First operand 369 states and 516 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 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 14:29:36,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:36,461 INFO L93 Difference]: Finished difference Result 712 states and 984 transitions. [2022-10-16 14:29:36,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 14:29:36,462 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 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 19 [2022-10-16 14:29:36,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:36,466 INFO L225 Difference]: With dead ends: 712 [2022-10-16 14:29:36,466 INFO L226 Difference]: Without dead ends: 711 [2022-10-16 14:29:36,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=176, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:29:36,468 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 290 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:36,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 247 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:36,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-10-16 14:29:36,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 680. [2022-10-16 14:29:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 667 states have (on average 1.4377811094452773) internal successors, (959), 679 states have internal predecessors, (959), 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 14:29:36,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 959 transitions. [2022-10-16 14:29:36,499 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 959 transitions. Word has length 19 [2022-10-16 14:29:36,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:36,499 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 959 transitions. [2022-10-16 14:29:36,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 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 14:29:36,500 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 959 transitions. [2022-10-16 14:29:36,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:29:36,501 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:36,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:36,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:36,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:36,716 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:36,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:36,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2031459543, now seen corresponding path program 1 times [2022-10-16 14:29:36,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:36,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264612647] [2022-10-16 14:29:36,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:36,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:36,744 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:29:36,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:36,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264612647] [2022-10-16 14:29:36,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264612647] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:36,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:36,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:36,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068894936] [2022-10-16 14:29:36,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:36,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:36,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:36,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:36,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:36,747 INFO L87 Difference]: Start difference. First operand 680 states and 959 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:36,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:36,783 INFO L93 Difference]: Finished difference Result 829 states and 1119 transitions. [2022-10-16 14:29:36,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:36,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19 [2022-10-16 14:29:36,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:36,788 INFO L225 Difference]: With dead ends: 829 [2022-10-16 14:29:36,788 INFO L226 Difference]: Without dead ends: 826 [2022-10-16 14:29:36,789 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 14:29:36,790 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 33 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:36,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 39 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:36,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-10-16 14:29:36,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 677. [2022-10-16 14:29:36,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 667 states have (on average 1.35832083958021) internal successors, (906), 676 states have internal predecessors, (906), 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 14:29:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 906 transitions. [2022-10-16 14:29:36,816 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 906 transitions. Word has length 19 [2022-10-16 14:29:36,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:36,816 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 906 transitions. [2022-10-16 14:29:36,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:36,816 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 906 transitions. [2022-10-16 14:29:36,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:29:36,817 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:36,817 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:36,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:29:36,818 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:36,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:36,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1449263554, now seen corresponding path program 1 times [2022-10-16 14:29:36,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:36,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737121650] [2022-10-16 14:29:36,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:36,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:36,858 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:36,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:36,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737121650] [2022-10-16 14:29:36,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737121650] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:36,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69993516] [2022-10-16 14:29:36,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:36,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:36,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:36,861 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 14:29:36,883 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 14:29:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:36,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:29:36,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:36,934 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:36,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:29:36,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69993516] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:36,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:29:36,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-10-16 14:29:36,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243108858] [2022-10-16 14:29:36,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:36,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:36,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:36,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:36,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:29:36,937 INFO L87 Difference]: Start difference. First operand 677 states and 906 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:36,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:36,962 INFO L93 Difference]: Finished difference Result 677 states and 906 transitions. [2022-10-16 14:29:36,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:36,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 14:29:36,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:36,966 INFO L225 Difference]: With dead ends: 677 [2022-10-16 14:29:36,967 INFO L226 Difference]: Without dead ends: 675 [2022-10-16 14:29:36,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:29:36,968 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 25 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:36,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 32 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:36,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-10-16 14:29:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2022-10-16 14:29:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 667 states have (on average 1.3073463268365817) internal successors, (872), 674 states have internal predecessors, (872), 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 14:29:36,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 872 transitions. [2022-10-16 14:29:36,992 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 872 transitions. Word has length 20 [2022-10-16 14:29:36,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:36,992 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 872 transitions. [2022-10-16 14:29:36,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:36,992 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 872 transitions. [2022-10-16 14:29:36,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 14:29:36,993 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:36,993 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] [2022-10-16 14:29:37,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 14:29:37,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 14:29:37,209 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:37,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:37,210 INFO L85 PathProgramCache]: Analyzing trace with hash -89013205, now seen corresponding path program 1 times [2022-10-16 14:29:37,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:37,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951830145] [2022-10-16 14:29:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:37,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:37,273 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 14:29:37,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:37,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951830145] [2022-10-16 14:29:37,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951830145] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:37,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139719343] [2022-10-16 14:29:37,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:37,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:37,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:37,276 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 14:29:37,307 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 14:29:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:37,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:29:37,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:37,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:37,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:29:37,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139719343] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:37,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:29:37,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 14:29:37,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532584506] [2022-10-16 14:29:37,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:37,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:29:37,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:37,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:29:37,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:29:37,363 INFO L87 Difference]: Start difference. First operand 675 states and 872 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:37,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:37,395 INFO L93 Difference]: Finished difference Result 678 states and 872 transitions. [2022-10-16 14:29:37,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:29:37,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 14:29:37,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:37,399 INFO L225 Difference]: With dead ends: 678 [2022-10-16 14:29:37,399 INFO L226 Difference]: Without dead ends: 677 [2022-10-16 14:29:37,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:29:37,400 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 44 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:37,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 71 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:37,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-10-16 14:29:37,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 674. [2022-10-16 14:29:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 667 states have (on average 1.2818590704647677) internal successors, (855), 673 states have internal predecessors, (855), 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 14:29:37,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 855 transitions. [2022-10-16 14:29:37,425 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 855 transitions. Word has length 22 [2022-10-16 14:29:37,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:37,425 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 855 transitions. [2022-10-16 14:29:37,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:37,425 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 855 transitions. [2022-10-16 14:29:37,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 14:29:37,426 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:37,426 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] [2022-10-16 14:29:37,459 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 14:29:37,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:37,640 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:37,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:37,641 INFO L85 PathProgramCache]: Analyzing trace with hash -89007183, now seen corresponding path program 1 times [2022-10-16 14:29:37,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:37,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293195871] [2022-10-16 14:29:37,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:37,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:29:37,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:37,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293195871] [2022-10-16 14:29:37,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293195871] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:37,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:37,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:29:37,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167629670] [2022-10-16 14:29:37,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:37,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:37,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:37,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:37,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:37,677 INFO L87 Difference]: Start difference. First operand 674 states and 855 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:37,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:37,700 INFO L93 Difference]: Finished difference Result 1290 states and 1658 transitions. [2022-10-16 14:29:37,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:37,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 14:29:37,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:37,705 INFO L225 Difference]: With dead ends: 1290 [2022-10-16 14:29:37,706 INFO L226 Difference]: Without dead ends: 694 [2022-10-16 14:29:37,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 14:29:37,711 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:37,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:37,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-10-16 14:29:37,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2022-10-16 14:29:37,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 687 states have (on average 1.26783114992722) internal successors, (871), 693 states have internal predecessors, (871), 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 14:29:37,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 871 transitions. [2022-10-16 14:29:37,736 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 871 transitions. Word has length 22 [2022-10-16 14:29:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:37,736 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 871 transitions. [2022-10-16 14:29:37,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:37,737 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 871 transitions. [2022-10-16 14:29:37,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 14:29:37,738 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:37,739 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] [2022-10-16 14:29:37,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 14:29:37,739 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:37,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:37,740 INFO L85 PathProgramCache]: Analyzing trace with hash 357658829, now seen corresponding path program 1 times [2022-10-16 14:29:37,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:37,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774636742] [2022-10-16 14:29:37,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:37,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:37,801 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 14:29:37,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:37,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774636742] [2022-10-16 14:29:37,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774636742] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:37,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647463992] [2022-10-16 14:29:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:37,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:37,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:37,803 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 14:29:37,825 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 14:29:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:37,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:29:37,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:37,894 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 14:29:37,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:37,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:37,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647463992] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:37,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 14:29:37,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 4] total 9 [2022-10-16 14:29:37,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942167929] [2022-10-16 14:29:37,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:37,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:29:37,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:37,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:29:37,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:29:37,978 INFO L87 Difference]: Start difference. First operand 694 states and 871 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 14:29:38,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:38,034 INFO L93 Difference]: Finished difference Result 1252 states and 1578 transitions. [2022-10-16 14:29:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:29:38,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 14:29:38,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:38,040 INFO L225 Difference]: With dead ends: 1252 [2022-10-16 14:29:38,040 INFO L226 Difference]: Without dead ends: 1251 [2022-10-16 14:29:38,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:29:38,042 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 80 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:38,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 59 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:38,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2022-10-16 14:29:38,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 985. [2022-10-16 14:29:38,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 978 states have (on average 1.2791411042944785) internal successors, (1251), 984 states have internal predecessors, (1251), 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 14:29:38,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1251 transitions. [2022-10-16 14:29:38,082 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1251 transitions. Word has length 24 [2022-10-16 14:29:38,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:38,082 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1251 transitions. [2022-10-16 14:29:38,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 14:29:38,083 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1251 transitions. [2022-10-16 14:29:38,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 14:29:38,084 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:38,084 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:38,121 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 14:29:38,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:38,298 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:38,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:38,299 INFO L85 PathProgramCache]: Analyzing trace with hash -680803195, now seen corresponding path program 1 times [2022-10-16 14:29:38,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:38,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850374477] [2022-10-16 14:29:38,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:38,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:38,348 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:29:38,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:38,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850374477] [2022-10-16 14:29:38,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850374477] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:38,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788928132] [2022-10-16 14:29:38,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:38,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:38,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:38,350 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 14:29:38,354 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 14:29:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:38,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:29:38,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:38,521 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:29:38,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:38,589 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:29:38,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788928132] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:38,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 14:29:38,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 6] total 11 [2022-10-16 14:29:38,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267844938] [2022-10-16 14:29:38,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:38,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:29:38,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:38,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:29:38,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:29:38,591 INFO L87 Difference]: Start difference. First operand 985 states and 1251 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 14:29:38,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:38,726 INFO L93 Difference]: Finished difference Result 1841 states and 2348 transitions. [2022-10-16 14:29:38,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:29:38,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2022-10-16 14:29:38,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:38,733 INFO L225 Difference]: With dead ends: 1841 [2022-10-16 14:29:38,733 INFO L226 Difference]: Without dead ends: 1351 [2022-10-16 14:29:38,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:29:38,735 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 59 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:38,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 153 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:38,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-10-16 14:29:38,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1192. [2022-10-16 14:29:38,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 1185 states have (on average 1.2877637130801687) internal successors, (1526), 1191 states have internal predecessors, (1526), 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 14:29:38,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1526 transitions. [2022-10-16 14:29:38,787 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1526 transitions. Word has length 40 [2022-10-16 14:29:38,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:38,787 INFO L495 AbstractCegarLoop]: Abstraction has 1192 states and 1526 transitions. [2022-10-16 14:29:38,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 14:29:38,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1526 transitions. [2022-10-16 14:29:38,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 14:29:38,789 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:38,789 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-10-16 14:29:38,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:39,003 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,SelfDestructingSolverStorable14 [2022-10-16 14:29:39,004 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:39,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:39,005 INFO L85 PathProgramCache]: Analyzing trace with hash 915111090, now seen corresponding path program 2 times [2022-10-16 14:29:39,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:39,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085265046] [2022-10-16 14:29:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:39,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:39,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:39,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085265046] [2022-10-16 14:29:39,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085265046] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:39,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802527006] [2022-10-16 14:29:39,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:29:39,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:39,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:39,195 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 14:29:39,217 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 14:29:39,246 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:29:39,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:39,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:29:39,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:39,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:39,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802527006] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:39,415 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:39,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2022-10-16 14:29:39,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746272182] [2022-10-16 14:29:39,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:39,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:29:39,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:39,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:29:39,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=166, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:29:39,417 INFO L87 Difference]: Start difference. First operand 1192 states and 1526 transitions. Second operand has 18 states, 17 states have (on average 7.294117647058823) internal successors, (124), 18 states have internal predecessors, (124), 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 14:29:39,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:39,749 INFO L93 Difference]: Finished difference Result 3091 states and 4083 transitions. [2022-10-16 14:29:39,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 14:29:39,750 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.294117647058823) internal successors, (124), 18 states have internal predecessors, (124), 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 43 [2022-10-16 14:29:39,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:39,763 INFO L225 Difference]: With dead ends: 3091 [2022-10-16 14:29:39,764 INFO L226 Difference]: Without dead ends: 3089 [2022-10-16 14:29:39,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=188, Invalid=232, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:29:39,766 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 577 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:39,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 360 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:29:39,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2022-10-16 14:29:39,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 2970. [2022-10-16 14:29:39,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2970 states, 2963 states have (on average 1.2757340533243335) internal successors, (3780), 2969 states have internal predecessors, (3780), 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 14:29:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 3780 transitions. [2022-10-16 14:29:39,893 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 3780 transitions. Word has length 43 [2022-10-16 14:29:39,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:39,894 INFO L495 AbstractCegarLoop]: Abstraction has 2970 states and 3780 transitions. [2022-10-16 14:29:39,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.294117647058823) internal successors, (124), 18 states have internal predecessors, (124), 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 14:29:39,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 3780 transitions. [2022-10-16 14:29:39,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 14:29:39,896 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:39,896 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:39,932 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 14:29:40,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 14:29:40,111 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:40,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:40,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1767035772, now seen corresponding path program 1 times [2022-10-16 14:29:40,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:40,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657152499] [2022-10-16 14:29:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:40,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:40,165 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 14:29:40,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:40,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657152499] [2022-10-16 14:29:40,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657152499] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:40,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724069775] [2022-10-16 14:29:40,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:40,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:40,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:40,167 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 14:29:40,192 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 14:29:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:40,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:29:40,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:40,424 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 25 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:29:40,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:40,526 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:29:40,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724069775] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:40,527 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:40,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 13 [2022-10-16 14:29:40,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968993517] [2022-10-16 14:29:40,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:40,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:29:40,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:40,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:29:40,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:29:40,530 INFO L87 Difference]: Start difference. First operand 2970 states and 3780 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 13 states have internal predecessors, (120), 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 14:29:41,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:41,291 INFO L93 Difference]: Finished difference Result 6855 states and 8773 transitions. [2022-10-16 14:29:41,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 14:29:41,292 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 13 states have internal predecessors, (120), 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 49 [2022-10-16 14:29:41,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:41,318 INFO L225 Difference]: With dead ends: 6855 [2022-10-16 14:29:41,318 INFO L226 Difference]: Without dead ends: 5396 [2022-10-16 14:29:41,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=415, Invalid=1067, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 14:29:41,323 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 391 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:41,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 213 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:29:41,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5396 states. [2022-10-16 14:29:41,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5396 to 2592. [2022-10-16 14:29:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2592 states, 2586 states have (on average 1.2691415313225058) internal successors, (3282), 2591 states have internal predecessors, (3282), 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 14:29:41,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2592 states to 2592 states and 3282 transitions. [2022-10-16 14:29:41,510 INFO L78 Accepts]: Start accepts. Automaton has 2592 states and 3282 transitions. Word has length 49 [2022-10-16 14:29:41,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:41,510 INFO L495 AbstractCegarLoop]: Abstraction has 2592 states and 3282 transitions. [2022-10-16 14:29:41,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 13 states have internal predecessors, (120), 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 14:29:41,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states and 3282 transitions. [2022-10-16 14:29:41,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 14:29:41,512 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:41,513 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:41,549 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 14:29:41,727 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,SelfDestructingSolverStorable16 [2022-10-16 14:29:41,727 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:41,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:41,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1528127550, now seen corresponding path program 1 times [2022-10-16 14:29:41,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:41,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839669150] [2022-10-16 14:29:41,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:41,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:41,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:41,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839669150] [2022-10-16 14:29:41,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839669150] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:41,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210776406] [2022-10-16 14:29:41,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:41,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:41,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:41,854 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 14:29:41,876 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 14:29:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:41,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:29:41,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:42,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:42,193 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:42,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210776406] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:42,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:42,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2022-10-16 14:29:42,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577744967] [2022-10-16 14:29:42,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:42,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 14:29:42,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:42,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 14:29:42,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=209, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:29:42,195 INFO L87 Difference]: Start difference. First operand 2592 states and 3282 transitions. Second operand has 20 states, 19 states have (on average 8.421052631578947) internal successors, (160), 20 states have internal predecessors, (160), 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 14:29:42,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:42,661 INFO L93 Difference]: Finished difference Result 7602 states and 9917 transitions. [2022-10-16 14:29:42,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 14:29:42,663 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.421052631578947) internal successors, (160), 20 states have internal predecessors, (160), 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 54 [2022-10-16 14:29:42,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:42,690 INFO L225 Difference]: With dead ends: 7602 [2022-10-16 14:29:42,690 INFO L226 Difference]: Without dead ends: 5808 [2022-10-16 14:29:42,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=230, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:29:42,695 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 999 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:42,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 415 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:29:42,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5808 states. [2022-10-16 14:29:42,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5808 to 3474. [2022-10-16 14:29:42,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3474 states, 3468 states have (on average 1.2658592848904267) internal successors, (4390), 3473 states have internal predecessors, (4390), 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 14:29:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 4390 transitions. [2022-10-16 14:29:42,922 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 4390 transitions. Word has length 54 [2022-10-16 14:29:42,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:42,922 INFO L495 AbstractCegarLoop]: Abstraction has 3474 states and 4390 transitions. [2022-10-16 14:29:42,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.421052631578947) internal successors, (160), 20 states have internal predecessors, (160), 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 14:29:42,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 4390 transitions. [2022-10-16 14:29:42,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 14:29:42,925 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:42,925 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:42,958 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 14:29:43,140 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,SelfDestructingSolverStorable17 [2022-10-16 14:29:43,141 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:43,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:43,142 INFO L85 PathProgramCache]: Analyzing trace with hash 705761397, now seen corresponding path program 1 times [2022-10-16 14:29:43,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:43,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274925107] [2022-10-16 14:29:43,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:43,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:43,341 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:43,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:43,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274925107] [2022-10-16 14:29:43,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274925107] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:43,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962410763] [2022-10-16 14:29:43,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:43,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:43,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:43,344 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 14:29:43,376 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 14:29:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:43,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:29:43,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:43,550 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:43,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:43,759 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:43,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962410763] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:43,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:43,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2022-10-16 14:29:43,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317447783] [2022-10-16 14:29:43,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:43,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 14:29:43,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:43,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 14:29:43,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=324, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:29:43,762 INFO L87 Difference]: Start difference. First operand 3474 states and 4390 transitions. Second operand has 25 states, 24 states have (on average 7.041666666666667) internal successors, (169), 25 states have internal predecessors, (169), 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 14:29:44,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:44,365 INFO L93 Difference]: Finished difference Result 10437 states and 13670 transitions. [2022-10-16 14:29:44,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:29:44,366 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 7.041666666666667) internal successors, (169), 25 states have internal predecessors, (169), 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 57 [2022-10-16 14:29:44,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:44,406 INFO L225 Difference]: With dead ends: 10437 [2022-10-16 14:29:44,406 INFO L226 Difference]: Without dead ends: 10436 [2022-10-16 14:29:44,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=376, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:29:44,411 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 1154 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:44,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 590 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:44,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10436 states. [2022-10-16 14:29:44,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10436 to 10161. [2022-10-16 14:29:44,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10161 states, 10155 states have (on average 1.269916297390448) internal successors, (12896), 10160 states have internal predecessors, (12896), 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 14:29:44,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10161 states to 10161 states and 12896 transitions. [2022-10-16 14:29:44,919 INFO L78 Accepts]: Start accepts. Automaton has 10161 states and 12896 transitions. Word has length 57 [2022-10-16 14:29:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:44,920 INFO L495 AbstractCegarLoop]: Abstraction has 10161 states and 12896 transitions. [2022-10-16 14:29:44,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 7.041666666666667) internal successors, (169), 25 states have internal predecessors, (169), 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 14:29:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 10161 states and 12896 transitions. [2022-10-16 14:29:44,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-16 14:29:44,925 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:44,925 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-10-16 14:29:44,962 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 14:29:45,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:45,139 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:45,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:45,140 INFO L85 PathProgramCache]: Analyzing trace with hash -971836398, now seen corresponding path program 3 times [2022-10-16 14:29:45,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:45,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577364084] [2022-10-16 14:29:45,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:45,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:45,769 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:45,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:45,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577364084] [2022-10-16 14:29:45,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577364084] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:45,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114546978] [2022-10-16 14:29:45,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:29:45,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:45,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:45,772 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 14:29:45,797 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 14:29:45,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 14:29:45,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:45,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 14:29:45,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:46,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:46,453 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:46,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114546978] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:46,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:46,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 35 [2022-10-16 14:29:46,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37722266] [2022-10-16 14:29:46,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:46,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 14:29:46,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:46,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 14:29:46,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=566, Invalid=694, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 14:29:46,457 INFO L87 Difference]: Start difference. First operand 10161 states and 12896 transitions. Second operand has 36 states, 35 states have (on average 8.17142857142857) internal successors, (286), 36 states have internal predecessors, (286), 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 14:29:47,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:47,620 INFO L93 Difference]: Finished difference Result 14238 states and 18375 transitions. [2022-10-16 14:29:47,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-16 14:29:47,621 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 8.17142857142857) internal successors, (286), 36 states have internal predecessors, (286), 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 97 [2022-10-16 14:29:47,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:47,650 INFO L225 Difference]: With dead ends: 14238 [2022-10-16 14:29:47,650 INFO L226 Difference]: Without dead ends: 14236 [2022-10-16 14:29:47,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=845, Invalid=1135, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 14:29:47,657 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 2242 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:47,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 628 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:29:47,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14236 states. [2022-10-16 14:29:48,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14236 to 14000. [2022-10-16 14:29:48,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14000 states, 13994 states have (on average 1.2413177075889668) internal successors, (17371), 13999 states have internal predecessors, (17371), 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 14:29:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14000 states to 14000 states and 17371 transitions. [2022-10-16 14:29:48,514 INFO L78 Accepts]: Start accepts. Automaton has 14000 states and 17371 transitions. Word has length 97 [2022-10-16 14:29:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:48,515 INFO L495 AbstractCegarLoop]: Abstraction has 14000 states and 17371 transitions. [2022-10-16 14:29:48,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 8.17142857142857) internal successors, (286), 36 states have internal predecessors, (286), 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 14:29:48,516 INFO L276 IsEmpty]: Start isEmpty. Operand 14000 states and 17371 transitions. [2022-10-16 14:29:48,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-10-16 14:29:48,532 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:48,532 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1] [2022-10-16 14:29:48,569 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 14:29:48,748 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,SelfDestructingSolverStorable19 [2022-10-16 14:29:48,749 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:48,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:48,750 INFO L85 PathProgramCache]: Analyzing trace with hash 571603061, now seen corresponding path program 2 times [2022-10-16 14:29:48,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:48,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626099542] [2022-10-16 14:29:48,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:48,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:49,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 0 proven. 1215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:49,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:49,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626099542] [2022-10-16 14:29:49,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626099542] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:49,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275925775] [2022-10-16 14:29:49,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:29:49,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:49,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:49,407 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 14:29:49,409 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 14:29:49,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:29:49,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:49,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 14:29:49,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:50,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 0 proven. 1215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:50,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 0 proven. 1215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:50,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275925775] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:50,807 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:50,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 52 [2022-10-16 14:29:50,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149125788] [2022-10-16 14:29:50,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:50,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-16 14:29:50,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:50,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-16 14:29:50,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1315, Invalid=1441, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 14:29:50,811 INFO L87 Difference]: Start difference. First operand 14000 states and 17371 transitions. Second operand has 53 states, 52 states have (on average 9.826923076923077) internal successors, (511), 53 states have internal predecessors, (511), 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 14:29:53,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:53,327 INFO L93 Difference]: Finished difference Result 21243 states and 27028 transitions. [2022-10-16 14:29:53,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 14:29:53,328 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 9.826923076923077) internal successors, (511), 53 states have internal predecessors, (511), 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 171 [2022-10-16 14:29:53,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:53,364 INFO L225 Difference]: With dead ends: 21243 [2022-10-16 14:29:53,364 INFO L226 Difference]: Without dead ends: 21240 [2022-10-16 14:29:53,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1367, Invalid=1495, Unknown=0, NotChecked=0, Total=2862 [2022-10-16 14:29:53,371 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3441 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3441 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:53,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3441 Valid, 1215 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:29:53,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21240 states. [2022-10-16 14:29:54,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21240 to 16829. [2022-10-16 14:29:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16829 states, 16823 states have (on average 1.2534030791178743) internal successors, (21086), 16828 states have internal predecessors, (21086), 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 14:29:54,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16829 states to 16829 states and 21086 transitions. [2022-10-16 14:29:54,144 INFO L78 Accepts]: Start accepts. Automaton has 16829 states and 21086 transitions. Word has length 171 [2022-10-16 14:29:54,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:54,144 INFO L495 AbstractCegarLoop]: Abstraction has 16829 states and 21086 transitions. [2022-10-16 14:29:54,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 9.826923076923077) internal successors, (511), 53 states have internal predecessors, (511), 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 14:29:54,145 INFO L276 IsEmpty]: Start isEmpty. Operand 16829 states and 21086 transitions. [2022-10-16 14:29:54,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-10-16 14:29:54,162 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:54,162 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 1, 1, 1] [2022-10-16 14:29:54,204 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 14:29:54,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:54,378 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:29:54,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:54,380 INFO L85 PathProgramCache]: Analyzing trace with hash -908153751, now seen corresponding path program 2 times [2022-10-16 14:29:54,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:54,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678644331] [2022-10-16 14:29:54,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:54,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:55,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 0 proven. 1521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:55,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:55,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678644331] [2022-10-16 14:29:55,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678644331] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:55,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000368325] [2022-10-16 14:29:55,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:29:55,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:55,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:55,342 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 14:29:55,350 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 14:29:55,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:29:55,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:55,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 14:29:55,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:56,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 0 proven. 1521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:56,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:58,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 0 proven. 1521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:58,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000368325] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:58,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:58,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 62 [2022-10-16 14:29:58,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351269580] [2022-10-16 14:29:58,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:58,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-10-16 14:29:58,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:58,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-10-16 14:29:58,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1707, Invalid=2199, Unknown=0, NotChecked=0, Total=3906 [2022-10-16 14:29:58,017 INFO L87 Difference]: Start difference. First operand 16829 states and 21086 transitions. Second operand has 63 states, 62 states have (on average 8.290322580645162) internal successors, (514), 63 states have internal predecessors, (514), 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 14:30:12,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:12,980 INFO L93 Difference]: Finished difference Result 385032 states and 489144 transitions. [2022-10-16 14:30:12,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-10-16 14:30:12,982 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 8.290322580645162) internal successors, (514), 63 states have internal predecessors, (514), 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 172 [2022-10-16 14:30:12,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:13,843 INFO L225 Difference]: With dead ends: 385032 [2022-10-16 14:30:13,843 INFO L226 Difference]: Without dead ends: 385031 [2022-10-16 14:30:14,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3970 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=7035, Invalid=11597, Unknown=0, NotChecked=0, Total=18632 [2022-10-16 14:30:14,033 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 4393 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4393 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:14,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4393 Valid, 1361 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:30:14,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385031 states. [2022-10-16 14:30:28,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385031 to 354421. [2022-10-16 14:30:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354421 states, 354415 states have (on average 1.2583496748162466) internal successors, (445978), 354420 states have internal predecessors, (445978), 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 14:30:30,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354421 states to 354421 states and 445978 transitions. [2022-10-16 14:30:30,762 INFO L78 Accepts]: Start accepts. Automaton has 354421 states and 445978 transitions. Word has length 172 [2022-10-16 14:30:30,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:30,762 INFO L495 AbstractCegarLoop]: Abstraction has 354421 states and 445978 transitions. [2022-10-16 14:30:30,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 8.290322580645162) internal successors, (514), 63 states have internal predecessors, (514), 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 14:30:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 354421 states and 445978 transitions. [2022-10-16 14:30:30,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-16 14:30:30,996 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:30,996 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 18, 18, 18, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:31,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-10-16 14:30:31,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:31,210 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:30:31,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:31,211 INFO L85 PathProgramCache]: Analyzing trace with hash 269288902, now seen corresponding path program 1 times [2022-10-16 14:30:31,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:31,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299455158] [2022-10-16 14:30:31,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:31,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:32,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 0 proven. 1460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:32,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:32,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299455158] [2022-10-16 14:30:32,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299455158] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:32,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023789419] [2022-10-16 14:30:32,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:32,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:32,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:32,691 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 14:30:32,698 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 14:30:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:32,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 14:30:32,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:33,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 1318 proven. 123 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 14:30:33,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 1362 proven. 71 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 14:30:34,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023789419] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:34,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:34,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 19] total 59 [2022-10-16 14:30:34,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326939673] [2022-10-16 14:30:34,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:34,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-10-16 14:30:34,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:34,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-10-16 14:30:34,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=832, Invalid=2590, Unknown=0, NotChecked=0, Total=3422 [2022-10-16 14:30:34,455 INFO L87 Difference]: Start difference. First operand 354421 states and 445978 transitions. Second operand has 59 states, 59 states have (on average 8.59322033898305) internal successors, (507), 59 states have internal predecessors, (507), 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 14:31:07,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:31:07,290 INFO L93 Difference]: Finished difference Result 1222238 states and 1552372 transitions. [2022-10-16 14:31:07,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 233 states. [2022-10-16 14:31:07,290 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 8.59322033898305) internal successors, (507), 59 states have internal predecessors, (507), 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 188 [2022-10-16 14:31:07,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:31:09,424 INFO L225 Difference]: With dead ends: 1222238 [2022-10-16 14:31:09,424 INFO L226 Difference]: Without dead ends: 897254 [2022-10-16 14:31:09,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 339 SyntacticMatches, 1 SemanticMatches, 264 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26642 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=13247, Invalid=57243, Unknown=0, NotChecked=0, Total=70490 [2022-10-16 14:31:10,005 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 2043 mSDsluCounter, 2370 mSDsCounter, 0 mSdLazyCounter, 3847 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 4330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 3847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:31:10,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 2570 Invalid, 4330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 3847 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-16 14:31:10,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897254 states. [2022-10-16 14:31:38,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897254 to 829484. [2022-10-16 14:31:41,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829484 states, 829478 states have (on average 1.2727570833705053) internal successors, (1055724), 829483 states have internal predecessors, (1055724), 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 14:31:45,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829484 states to 829484 states and 1055724 transitions. [2022-10-16 14:31:45,037 INFO L78 Accepts]: Start accepts. Automaton has 829484 states and 1055724 transitions. Word has length 188 [2022-10-16 14:31:45,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:31:45,037 INFO L495 AbstractCegarLoop]: Abstraction has 829484 states and 1055724 transitions. [2022-10-16 14:31:45,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 8.59322033898305) internal successors, (507), 59 states have internal predecessors, (507), 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 14:31:45,038 INFO L276 IsEmpty]: Start isEmpty. Operand 829484 states and 1055724 transitions. [2022-10-16 14:31:45,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-16 14:31:45,256 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:31:45,256 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 18, 18, 18, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:31:45,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-10-16 14:31:45,457 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,SelfDestructingSolverStorable22 [2022-10-16 14:31:45,458 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 14:31:45,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:31:45,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1404787972, now seen corresponding path program 2 times [2022-10-16 14:31:45,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:31:45,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015010181] [2022-10-16 14:31:45,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:31:45,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:31:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:31:47,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 0 proven. 1460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:31:47,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:31:47,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015010181] [2022-10-16 14:31:47,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015010181] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:31:47,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451537929] [2022-10-16 14:31:47,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:31:47,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:31:47,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:31:47,241 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 14:31:47,243 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 14:31:47,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:31:47,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:31:47,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 14:31:47,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:31:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 772 proven. 343 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-10-16 14:31:47,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:31:48,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 839 proven. 276 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-10-16 14:31:48,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451537929] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:31:48,353 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:31:48,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 14, 14] total 65 [2022-10-16 14:31:48,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365482852] [2022-10-16 14:31:48,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:31:48,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-10-16 14:31:48,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:31:48,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-10-16 14:31:48,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=895, Invalid=3265, Unknown=0, NotChecked=0, Total=4160 [2022-10-16 14:31:48,357 INFO L87 Difference]: Start difference. First operand 829484 states and 1055724 transitions. Second operand has 65 states, 65 states have (on average 6.061538461538461) internal successors, (394), 65 states have internal predecessors, (394), 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)