/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/loops/invert_string-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:37:25,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:37:25,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:37:25,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:37:25,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:37:25,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:37:25,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:37:25,559 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 14:37:25,612 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:37:25,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:37:25,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:37:25,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:37:25,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:37:25,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:37:25,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:37:25,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:37:25,617 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:37:25,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:37:25,619 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:37:25,619 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:37:25,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:37:25,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:37:25,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:37:25,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:37:25,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:37:25,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:37:25,620 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:37:25,620 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:37:25,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:37:25,621 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:37:25,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:37:25,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:37:25,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:37:25,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:37:25,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:37:25,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:37:25,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:37:25,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:37:25,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:37:25,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:37:25,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:37:25,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:37:26,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:37:26,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:37:26,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:37:26,066 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:37:26,067 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:37:26,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/invert_string-3.c [2022-10-16 14:37:26,149 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a47298d/747cfbea1a0548a3be4ea79b5c8f2bf1/FLAG93303391a [2022-10-16 14:37:26,788 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:37:26,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/invert_string-3.c [2022-10-16 14:37:26,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a47298d/747cfbea1a0548a3be4ea79b5c8f2bf1/FLAG93303391a [2022-10-16 14:37:26,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a47298d/747cfbea1a0548a3be4ea79b5c8f2bf1 [2022-10-16 14:37:26,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:37:26,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:37:26,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:37:26,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:37:26,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:37:26,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:37:26" (1/1) ... [2022-10-16 14:37:26,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e689c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:26, skipping insertion in model container [2022-10-16 14:37:26,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:37:26" (1/1) ... [2022-10-16 14:37:26,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:37:26,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:37:27,013 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/loops/invert_string-3.c[327,340] [2022-10-16 14:37:27,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:37:27,043 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:37:27,057 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/loops/invert_string-3.c[327,340] [2022-10-16 14:37:27,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:37:27,082 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:37:27,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27 WrapperNode [2022-10-16 14:37:27,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:37:27,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:37:27,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:37:27,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:37:27,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (1/1) ... [2022-10-16 14:37:27,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (1/1) ... [2022-10-16 14:37:27,127 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2022-10-16 14:37:27,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:37:27,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:37:27,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:37:27,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:37:27,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (1/1) ... [2022-10-16 14:37:27,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (1/1) ... [2022-10-16 14:37:27,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (1/1) ... [2022-10-16 14:37:27,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (1/1) ... [2022-10-16 14:37:27,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (1/1) ... [2022-10-16 14:37:27,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (1/1) ... [2022-10-16 14:37:27,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (1/1) ... [2022-10-16 14:37:27,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (1/1) ... [2022-10-16 14:37:27,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:37:27,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:37:27,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:37:27,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:37:27,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (1/1) ... [2022-10-16 14:37:27,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:37:27,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:27,203 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 14:37:27,206 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 14:37:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:37:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:37:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:37:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:37:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:37:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:37:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:37:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:37:27,340 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:37:27,343 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:37:27,591 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:37:27,612 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:37:27,612 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 14:37:27,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:37:27 BoogieIcfgContainer [2022-10-16 14:37:27,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:37:27,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:37:27,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:37:27,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:37:27,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:37:26" (1/3) ... [2022-10-16 14:37:27,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb6d93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:37:27, skipping insertion in model container [2022-10-16 14:37:27,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:27" (2/3) ... [2022-10-16 14:37:27,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb6d93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:37:27, skipping insertion in model container [2022-10-16 14:37:27,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:37:27" (3/3) ... [2022-10-16 14:37:27,642 INFO L112 eAbstractionObserver]: Analyzing ICFG invert_string-3.c [2022-10-16 14:37:27,681 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:37:27,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 14:37:27,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:37:27,796 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;@3766d084, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:37:27,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 14:37:27,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 36 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 14:37:27,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:37:27,810 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:27,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:37:27,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:27,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 14:37:27,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:27,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924794169] [2022-10-16 14:37:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:27,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:28,205 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 14:37:28,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:28,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924794169] [2022-10-16 14:37:28,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924794169] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:28,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:28,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:37:28,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570852554] [2022-10-16 14:37:28,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:28,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:28,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:28,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:28,252 INFO L87 Difference]: Start difference. First operand has 37 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 36 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:28,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:28,351 INFO L93 Difference]: Finished difference Result 90 states and 104 transitions. [2022-10-16 14:37:28,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:28,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:37:28,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:28,364 INFO L225 Difference]: With dead ends: 90 [2022-10-16 14:37:28,364 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 14:37:28,368 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 14:37:28,373 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 20 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:28,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 83 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:28,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 14:37:28,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 36. [2022-10-16 14:37:28,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.5) internal successors, (39), 35 states have internal predecessors, (39), 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 14:37:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-10-16 14:37:28,417 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 5 [2022-10-16 14:37:28,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:28,417 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-10-16 14:37:28,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:28,418 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-10-16 14:37:28,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 14:37:28,418 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:28,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 14:37:28,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:37:28,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:28,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:28,420 INFO L85 PathProgramCache]: Analyzing trace with hash 889609168, now seen corresponding path program 1 times [2022-10-16 14:37:28,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:28,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113223766] [2022-10-16 14:37:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:28,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:28,620 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 14:37:28,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:28,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113223766] [2022-10-16 14:37:28,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113223766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:28,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:28,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:37:28,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065749414] [2022-10-16 14:37:28,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:28,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:28,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:28,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:28,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:28,628 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. 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 14:37:28,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:28,667 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2022-10-16 14:37:28,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:28,668 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 14:37:28,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:28,669 INFO L225 Difference]: With dead ends: 42 [2022-10-16 14:37:28,670 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 14:37:28,670 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 14:37:28,672 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:28,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 85 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 14:37:28,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2022-10-16 14:37:28,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 38 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 14:37:28,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-10-16 14:37:28,681 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 6 [2022-10-16 14:37:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:28,682 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-10-16 14:37:28,682 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 14:37:28,682 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-10-16 14:37:28,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:37:28,683 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:28,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:28,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:37:28,684 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:28,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:28,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1896398096, now seen corresponding path program 1 times [2022-10-16 14:37:28,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:28,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740453979] [2022-10-16 14:37:28,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:28,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:28,879 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 14:37:28,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:28,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740453979] [2022-10-16 14:37:28,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740453979] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:28,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:28,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:37:28,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263011476] [2022-10-16 14:37:28,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:28,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:28,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:28,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:28,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:28,883 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:28,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:28,936 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2022-10-16 14:37:28,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:28,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 14:37:28,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:28,939 INFO L225 Difference]: With dead ends: 52 [2022-10-16 14:37:28,939 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 14:37:28,939 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 14:37:28,941 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 23 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:28,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 56 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 14:37:28,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 38. [2022-10-16 14:37:28,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 37 states have internal predecessors, (42), 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 14:37:28,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-10-16 14:37:28,951 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 9 [2022-10-16 14:37:28,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:28,951 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-10-16 14:37:28,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:28,952 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-10-16 14:37:28,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:37:28,953 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:28,953 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:37:28,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:37:28,953 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:28,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:28,954 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 14:37:28,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:28,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782637944] [2022-10-16 14:37:28,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:28,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:29,083 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 14:37:29,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:29,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782637944] [2022-10-16 14:37:29,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782637944] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:29,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131827768] [2022-10-16 14:37:29,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:29,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:29,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:29,092 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 14:37:29,109 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 14:37:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:29,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:37:29,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:29,297 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 14:37:29,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:29,353 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 14:37:29,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131827768] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:29,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:29,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:37:29,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411367480] [2022-10-16 14:37:29,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:29,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:37:29,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:29,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:37:29,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:37:29,357 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 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 14:37:29,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:29,523 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2022-10-16 14:37:29,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:37:29,524 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 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 9 [2022-10-16 14:37:29,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:29,527 INFO L225 Difference]: With dead ends: 70 [2022-10-16 14:37:29,527 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 14:37:29,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:37:29,530 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 56 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:29,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 106 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:29,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 14:37:29,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 49. [2022-10-16 14:37:29,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.45) internal successors, (58), 48 states have internal predecessors, (58), 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 14:37:29,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2022-10-16 14:37:29,541 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 9 [2022-10-16 14:37:29,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:29,541 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2022-10-16 14:37:29,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 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 14:37:29,542 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2022-10-16 14:37:29,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:37:29,546 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:29,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:29,592 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 14:37:29,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:29,763 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:29,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:29,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1295584295, now seen corresponding path program 1 times [2022-10-16 14:37:29,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:29,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609625178] [2022-10-16 14:37:29,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:29,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:29,927 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 14:37:29,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:29,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609625178] [2022-10-16 14:37:29,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609625178] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:29,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:29,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:37:29,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419079146] [2022-10-16 14:37:29,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:29,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:37:29,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:29,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:37:29,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:37:29,931 INFO L87 Difference]: Start difference. First operand 49 states and 58 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 14:37:30,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:30,146 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2022-10-16 14:37:30,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:37:30,147 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 14:37:30,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:30,148 INFO L225 Difference]: With dead ends: 77 [2022-10-16 14:37:30,148 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 14:37:30,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:37:30,150 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 55 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:30,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 115 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:30,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 14:37:30,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 58. [2022-10-16 14:37:30,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 57 states have internal predecessors, (70), 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 14:37:30,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2022-10-16 14:37:30,162 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 10 [2022-10-16 14:37:30,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:30,163 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2022-10-16 14:37:30,163 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 14:37:30,163 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2022-10-16 14:37:30,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:37:30,164 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:30,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:30,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:37:30,165 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:30,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:30,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1341201236, now seen corresponding path program 1 times [2022-10-16 14:37:30,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:30,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412652033] [2022-10-16 14:37:30,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:30,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:30,239 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 14:37:30,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:30,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412652033] [2022-10-16 14:37:30,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412652033] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:30,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:30,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:37:30,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539462386] [2022-10-16 14:37:30,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:30,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:30,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:30,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:30,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:30,245 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 14:37:30,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:30,305 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2022-10-16 14:37:30,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:30,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 14:37:30,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:30,310 INFO L225 Difference]: With dead ends: 79 [2022-10-16 14:37:30,311 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 14:37:30,311 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 14:37:30,317 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:30,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 60 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:30,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 14:37:30,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 57. [2022-10-16 14:37:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 56 states have internal predecessors, (69), 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 14:37:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2022-10-16 14:37:30,345 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 10 [2022-10-16 14:37:30,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:30,346 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2022-10-16 14:37:30,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 14:37:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2022-10-16 14:37:30,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:37:30,347 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:30,347 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:37:30,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:37:30,348 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:30,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:30,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 14:37:30,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:30,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289332469] [2022-10-16 14:37:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:30,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:30,451 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 14:37:30,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:30,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289332469] [2022-10-16 14:37:30,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289332469] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:30,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651855078] [2022-10-16 14:37:30,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:30,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:30,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:30,453 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 14:37:30,476 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 14:37:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:30,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:37:30,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:30,544 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 14:37:30,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:37:30,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651855078] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:30,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:37:30,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:37:30,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744367698] [2022-10-16 14:37:30,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:30,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:37:30,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:30,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:37:30,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:37:30,547 INFO L87 Difference]: Start difference. First operand 57 states and 69 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 14:37:30,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:30,613 INFO L93 Difference]: Finished difference Result 78 states and 93 transitions. [2022-10-16 14:37:30,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:37:30,614 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 14:37:30,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:30,615 INFO L225 Difference]: With dead ends: 78 [2022-10-16 14:37:30,615 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 14:37:30,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:37:30,616 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 25 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:30,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 92 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:30,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 14:37:30,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 56. [2022-10-16 14:37:30,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 49 states have (on average 1.346938775510204) internal successors, (66), 55 states have internal predecessors, (66), 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 14:37:30,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2022-10-16 14:37:30,625 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 10 [2022-10-16 14:37:30,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:30,625 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2022-10-16 14:37:30,625 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 14:37:30,626 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2022-10-16 14:37:30,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:37:30,626 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:30,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:30,662 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 14:37:30,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-10-16 14:37:30,842 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:30,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:30,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1508407575, now seen corresponding path program 1 times [2022-10-16 14:37:30,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:30,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090164791] [2022-10-16 14:37:30,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:30,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:31,115 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 14:37:31,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:31,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090164791] [2022-10-16 14:37:31,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090164791] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:31,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:31,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 14:37:31,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247426667] [2022-10-16 14:37:31,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:31,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:37:31,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:31,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:37:31,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:37:31,119 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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 14:37:31,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:31,305 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2022-10-16 14:37:31,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:37:31,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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 14:37:31,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:31,306 INFO L225 Difference]: With dead ends: 68 [2022-10-16 14:37:31,306 INFO L226 Difference]: Without dead ends: 56 [2022-10-16 14:37:31,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:37:31,307 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 92 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:31,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 72 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:31,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-16 14:37:31,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2022-10-16 14:37:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 45 states have (on average 1.3111111111111111) 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 14:37:31,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2022-10-16 14:37:31,315 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 11 [2022-10-16 14:37:31,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:31,316 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2022-10-16 14:37:31,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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 14:37:31,316 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2022-10-16 14:37:31,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:37:31,317 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:31,317 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:31,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:37:31,317 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:31,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:31,318 INFO L85 PathProgramCache]: Analyzing trace with hash 404200854, now seen corresponding path program 1 times [2022-10-16 14:37:31,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:31,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673433269] [2022-10-16 14:37:31,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:31,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:31,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:31,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673433269] [2022-10-16 14:37:31,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673433269] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:31,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296571043] [2022-10-16 14:37:31,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:31,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:31,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:31,390 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 14:37:31,411 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 14:37:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:31,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:37:31,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:31,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:31,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:31,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:31,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296571043] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:31,547 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:31,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:37:31,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017858383] [2022-10-16 14:37:31,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:31,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:37:31,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:31,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:37:31,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:37:31,550 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 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 14:37:31,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:31,656 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2022-10-16 14:37:31,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:37:31,657 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:37:31,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:31,658 INFO L225 Difference]: With dead ends: 77 [2022-10-16 14:37:31,658 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 14:37:31,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:37:31,661 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 31 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:31,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 149 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:31,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 14:37:31,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 69. [2022-10-16 14:37:31,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 68 states have internal predecessors, (81), 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 14:37:31,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2022-10-16 14:37:31,677 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 12 [2022-10-16 14:37:31,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:31,677 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2022-10-16 14:37:31,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 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 14:37:31,678 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2022-10-16 14:37:31,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:37:31,679 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:31,680 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:31,719 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 14:37:31,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:31,896 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:31,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:31,897 INFO L85 PathProgramCache]: Analyzing trace with hash -354675352, now seen corresponding path program 1 times [2022-10-16 14:37:31,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:31,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123050906] [2022-10-16 14:37:31,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:31,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:31,968 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 14:37:31,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:31,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123050906] [2022-10-16 14:37:31,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123050906] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:31,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817848972] [2022-10-16 14:37:31,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:31,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:31,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:31,978 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 14:37:31,998 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 14:37:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:32,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:37:32,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:32,063 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 14:37:32,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:37:32,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817848972] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:32,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:37:32,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 14:37:32,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433504037] [2022-10-16 14:37:32,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:32,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:32,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:32,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:32,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:37:32,066 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:32,098 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2022-10-16 14:37:32,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:32,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 14:37:32,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:32,099 INFO L225 Difference]: With dead ends: 69 [2022-10-16 14:37:32,106 INFO L226 Difference]: Without dead ends: 68 [2022-10-16 14:37:32,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:37:32,108 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:32,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 54 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:32,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-10-16 14:37:32,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-10-16 14:37:32,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 67 states have internal predecessors, (78), 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 14:37:32,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2022-10-16 14:37:32,124 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 13 [2022-10-16 14:37:32,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:32,125 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2022-10-16 14:37:32,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:32,125 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2022-10-16 14:37:32,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:37:32,126 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:32,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:32,168 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 14:37:32,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:32,339 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:32,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:32,341 INFO L85 PathProgramCache]: Analyzing trace with hash -559416595, now seen corresponding path program 1 times [2022-10-16 14:37:32,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:32,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177080056] [2022-10-16 14:37:32,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:32,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:32,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:32,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177080056] [2022-10-16 14:37:32,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177080056] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:32,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740582323] [2022-10-16 14:37:32,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:32,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:32,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:32,530 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 14:37:32,554 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 14:37:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:32,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:37:32,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:32,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:32,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:32,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740582323] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:32,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 14:37:32,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 5] total 11 [2022-10-16 14:37:32,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519879861] [2022-10-16 14:37:32,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:32,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:32,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:32,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:32,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:37:32,824 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:32,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:32,874 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2022-10-16 14:37:32,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:32,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 14:37:32,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:32,875 INFO L225 Difference]: With dead ends: 68 [2022-10-16 14:37:32,875 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 14:37:32,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:37:32,877 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:32,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 58 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:32,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 14:37:32,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-10-16 14:37:32,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 66 states have internal predecessors, (76), 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 14:37:32,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2022-10-16 14:37:32,884 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 76 transitions. Word has length 16 [2022-10-16 14:37:32,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:32,885 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 76 transitions. [2022-10-16 14:37:32,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 76 transitions. [2022-10-16 14:37:32,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:37:32,886 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:32,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:32,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:33,100 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 14:37:33,101 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:33,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:33,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1106579757, now seen corresponding path program 1 times [2022-10-16 14:37:33,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:33,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110254707] [2022-10-16 14:37:33,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:33,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:33,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:33,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110254707] [2022-10-16 14:37:33,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110254707] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:33,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:33,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:37:33,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053688426] [2022-10-16 14:37:33,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:33,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:33,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:33,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:33,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:33,175 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 14:37:33,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:33,213 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2022-10-16 14:37:33,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:33,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 14:37:33,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:33,214 INFO L225 Difference]: With dead ends: 73 [2022-10-16 14:37:33,214 INFO L226 Difference]: Without dead ends: 71 [2022-10-16 14:37:33,215 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 14:37:33,215 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:33,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 56 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:33,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-16 14:37:33,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2022-10-16 14:37:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 69 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 14:37:33,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2022-10-16 14:37:33,225 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 19 [2022-10-16 14:37:33,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:33,225 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2022-10-16 14:37:33,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 14:37:33,226 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2022-10-16 14:37:33,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 14:37:33,227 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:33,228 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1] [2022-10-16 14:37:33,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 14:37:33,228 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:33,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:33,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1151175080, now seen corresponding path program 2 times [2022-10-16 14:37:33,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:33,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949461001] [2022-10-16 14:37:33,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:33,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:33,413 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:33,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:33,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949461001] [2022-10-16 14:37:33,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949461001] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:33,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723140517] [2022-10-16 14:37:33,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:37:33,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:33,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:33,416 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 14:37:33,437 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 14:37:33,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:37:33,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:33,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:37:33,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:33,535 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:33,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:33,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723140517] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:33,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:33,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 14:37:33,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467479455] [2022-10-16 14:37:33,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:33,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:37:33,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:33,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:37:33,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:37:33,672 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand has 24 states, 23 states have (on average 2.0) internal successors, (46), 24 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:33,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:33,920 INFO L93 Difference]: Finished difference Result 106 states and 126 transitions. [2022-10-16 14:37:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 14:37:33,921 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.0) internal successors, (46), 24 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 14:37:33,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:33,922 INFO L225 Difference]: With dead ends: 106 [2022-10-16 14:37:33,922 INFO L226 Difference]: Without dead ends: 105 [2022-10-16 14:37:33,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:37:33,924 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 81 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:33,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 141 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:33,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-10-16 14:37:33,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94. [2022-10-16 14:37:33,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 89 states have (on average 1.2247191011235956) internal successors, (109), 93 states have internal predecessors, (109), 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 14:37:33,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 109 transitions. [2022-10-16 14:37:33,932 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 109 transitions. Word has length 21 [2022-10-16 14:37:33,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:33,932 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 109 transitions. [2022-10-16 14:37:33,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.0) internal successors, (46), 24 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:33,933 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 109 transitions. [2022-10-16 14:37:33,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 14:37:33,934 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:33,934 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:33,972 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 14:37:34,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:34,146 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:34,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:34,147 INFO L85 PathProgramCache]: Analyzing trace with hash -493345628, now seen corresponding path program 1 times [2022-10-16 14:37:34,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:34,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746272182] [2022-10-16 14:37:34,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:34,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:34,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:34,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:34,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746272182] [2022-10-16 14:37:34,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746272182] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:34,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864345188] [2022-10-16 14:37:34,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:34,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:34,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:34,335 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 14:37:34,345 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 14:37:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:34,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:37:34,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:34,523 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:34,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:34,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864345188] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:34,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:34,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 15 [2022-10-16 14:37:34,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065486672] [2022-10-16 14:37:34,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:34,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:37:34,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:34,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:37:34,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:37:34,694 INFO L87 Difference]: Start difference. First operand 94 states and 109 transitions. Second operand has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:35,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:35,047 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2022-10-16 14:37:35,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:37:35,047 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 14:37:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:35,049 INFO L225 Difference]: With dead ends: 121 [2022-10-16 14:37:35,049 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 14:37:35,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:37:35,051 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 99 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:35,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 132 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:35,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 14:37:35,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 115. [2022-10-16 14:37:35,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 114 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:35,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2022-10-16 14:37:35,063 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 25 [2022-10-16 14:37:35,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:35,064 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2022-10-16 14:37:35,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:35,064 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2022-10-16 14:37:35,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 14:37:35,067 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:35,067 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:35,105 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 14:37:35,280 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 14:37:35,281 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:35,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:35,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1658742874, now seen corresponding path program 1 times [2022-10-16 14:37:35,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:35,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886304340] [2022-10-16 14:37:35,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:35,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:35,435 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:35,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:35,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886304340] [2022-10-16 14:37:35,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886304340] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:35,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170941792] [2022-10-16 14:37:35,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:35,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:35,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:35,437 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 14:37:35,439 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 14:37:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:35,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:37:35,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:35,523 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:35,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:35,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170941792] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:35,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:35,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:37:35,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393908539] [2022-10-16 14:37:35,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:35,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:37:35,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:35,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:37:35,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:37:35,583 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:35,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:35,738 INFO L93 Difference]: Finished difference Result 123 states and 140 transitions. [2022-10-16 14:37:35,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:37:35,739 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 14:37:35,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:35,740 INFO L225 Difference]: With dead ends: 123 [2022-10-16 14:37:35,740 INFO L226 Difference]: Without dead ends: 122 [2022-10-16 14:37:35,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:37:35,741 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 27 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:35,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 131 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:35,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-16 14:37:35,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 117. [2022-10-16 14:37:35,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 112 states have (on average 1.1964285714285714) internal successors, (134), 116 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:35,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 134 transitions. [2022-10-16 14:37:35,756 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 134 transitions. Word has length 27 [2022-10-16 14:37:35,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:35,757 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 134 transitions. [2022-10-16 14:37:35,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:35,757 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 134 transitions. [2022-10-16 14:37:35,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 14:37:35,758 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:35,758 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:35,797 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 14:37:35,972 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 14:37:35,973 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:35,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:35,974 INFO L85 PathProgramCache]: Analyzing trace with hash 118578558, now seen corresponding path program 1 times [2022-10-16 14:37:35,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:35,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942126863] [2022-10-16 14:37:35,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:35,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:36,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:36,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942126863] [2022-10-16 14:37:36,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942126863] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:36,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460796921] [2022-10-16 14:37:36,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:36,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:36,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:36,079 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 14:37:36,105 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 14:37:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:36,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:37:36,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:36,200 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:36,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:37:36,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460796921] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:36,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:37:36,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:37:36,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553043639] [2022-10-16 14:37:36,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:36,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:37:36,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:36,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:37:36,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:37:36,204 INFO L87 Difference]: Start difference. First operand 117 states and 134 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:36,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:36,262 INFO L93 Difference]: Finished difference Result 118 states and 135 transitions. [2022-10-16 14:37:36,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:37:36,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 14:37:36,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:36,264 INFO L225 Difference]: With dead ends: 118 [2022-10-16 14:37:36,264 INFO L226 Difference]: Without dead ends: 117 [2022-10-16 14:37:36,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:37:36,265 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 19 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:36,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 57 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:36,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-10-16 14:37:36,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2022-10-16 14:37:36,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 112 states have (on average 1.1696428571428572) internal successors, (131), 115 states have internal predecessors, (131), 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 14:37:36,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 131 transitions. [2022-10-16 14:37:36,280 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 131 transitions. Word has length 28 [2022-10-16 14:37:36,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:36,281 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 131 transitions. [2022-10-16 14:37:36,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:36,281 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 131 transitions. [2022-10-16 14:37:36,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 14:37:36,284 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:36,284 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-10-16 14:37:36,327 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 14:37:36,498 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 14:37:36,498 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:36,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:36,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1904257048, now seen corresponding path program 2 times [2022-10-16 14:37:36,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:36,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922986326] [2022-10-16 14:37:36,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:36,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:36,664 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:36,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:36,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922986326] [2022-10-16 14:37:36,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922986326] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:36,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779080389] [2022-10-16 14:37:36,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:37:36,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:36,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:36,666 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 14:37:36,674 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 14:37:36,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:37:36,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:36,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:37:36,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:36,743 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-16 14:37:36,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:37:36,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779080389] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:36,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:37:36,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 13 [2022-10-16 14:37:36,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568306994] [2022-10-16 14:37:36,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:36,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:37:36,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:36,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:37:36,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:37:36,745 INFO L87 Difference]: Start difference. First operand 116 states and 131 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 14:37:36,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:36,774 INFO L93 Difference]: Finished difference Result 186 states and 205 transitions. [2022-10-16 14:37:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:37:36,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 30 [2022-10-16 14:37:36,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:36,775 INFO L225 Difference]: With dead ends: 186 [2022-10-16 14:37:36,775 INFO L226 Difference]: Without dead ends: 116 [2022-10-16 14:37:36,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:37:36,777 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:36,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 40 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:36,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-10-16 14:37:36,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-10-16 14:37:36,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 112 states have (on average 1.1607142857142858) internal successors, (130), 115 states have internal predecessors, (130), 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 14:37:36,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 130 transitions. [2022-10-16 14:37:36,789 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 130 transitions. Word has length 30 [2022-10-16 14:37:36,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:36,790 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 130 transitions. [2022-10-16 14:37:36,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 14:37:36,790 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 130 transitions. [2022-10-16 14:37:36,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 14:37:36,791 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:36,791 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:36,832 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 14:37:37,004 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 14:37:37,005 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:37,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1958382316, now seen corresponding path program 1 times [2022-10-16 14:37:37,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:37,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603465288] [2022-10-16 14:37:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:37,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:37,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:37,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603465288] [2022-10-16 14:37:37,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603465288] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:37,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005888316] [2022-10-16 14:37:37,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:37,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:37,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:37,180 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 14:37:37,203 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 14:37:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:37,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:37:37,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:37,301 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:37,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:37,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005888316] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:37,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:37,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 14:37:37,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875051842] [2022-10-16 14:37:37,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:37,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:37:37,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:37,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:37:37,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:37:37,465 INFO L87 Difference]: Start difference. First operand 116 states and 130 transitions. Second operand has 24 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 24 states have internal predecessors, (65), 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 14:37:37,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:37,662 INFO L93 Difference]: Finished difference Result 163 states and 188 transitions. [2022-10-16 14:37:37,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:37:37,663 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 24 states have internal predecessors, (65), 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 34 [2022-10-16 14:37:37,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:37,664 INFO L225 Difference]: With dead ends: 163 [2022-10-16 14:37:37,664 INFO L226 Difference]: Without dead ends: 162 [2022-10-16 14:37:37,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:37:37,666 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 93 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:37,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 230 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:37,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-10-16 14:37:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 152. [2022-10-16 14:37:37,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 148 states have (on average 1.162162162162162) internal successors, (172), 151 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:37,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 172 transitions. [2022-10-16 14:37:37,682 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 172 transitions. Word has length 34 [2022-10-16 14:37:37,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:37,682 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 172 transitions. [2022-10-16 14:37:37,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 24 states have internal predecessors, (65), 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 14:37:37,682 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 172 transitions. [2022-10-16 14:37:37,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 14:37:37,686 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:37,686 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 1, 1, 1] [2022-10-16 14:37:37,730 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 14:37:37,900 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 14:37:37,900 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:37,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:37,901 INFO L85 PathProgramCache]: Analyzing trace with hash -234043584, now seen corresponding path program 3 times [2022-10-16 14:37:37,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:37,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936044701] [2022-10-16 14:37:37,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:37,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:38,369 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:38,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:38,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936044701] [2022-10-16 14:37:38,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936044701] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:38,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697074755] [2022-10-16 14:37:38,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:37:38,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:38,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:38,371 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 14:37:38,374 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 14:37:38,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:37:38,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:38,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:37:38,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:38,577 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 19 proven. 20 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-16 14:37:38,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-16 14:37:38,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697074755] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:38,862 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:38,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 6, 6] total 33 [2022-10-16 14:37:38,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919947956] [2022-10-16 14:37:38,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:38,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 14:37:38,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:38,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 14:37:38,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=874, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:37:38,865 INFO L87 Difference]: Start difference. First operand 152 states and 172 transitions. Second operand has 34 states, 33 states have (on average 1.9696969696969697) internal successors, (65), 34 states have internal predecessors, (65), 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 14:37:39,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:39,288 INFO L93 Difference]: Finished difference Result 258 states and 288 transitions. [2022-10-16 14:37:39,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:37:39,289 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.9696969696969697) internal successors, (65), 34 states have internal predecessors, (65), 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 45 [2022-10-16 14:37:39,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:39,290 INFO L225 Difference]: With dead ends: 258 [2022-10-16 14:37:39,290 INFO L226 Difference]: Without dead ends: 151 [2022-10-16 14:37:39,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=563, Invalid=1507, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 14:37:39,292 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 127 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:39,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 122 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:39,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-10-16 14:37:39,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 129. [2022-10-16 14:37:39,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 126 states have (on average 1.1111111111111112) internal successors, (140), 128 states have internal predecessors, (140), 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 14:37:39,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 140 transitions. [2022-10-16 14:37:39,306 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 140 transitions. Word has length 45 [2022-10-16 14:37:39,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:39,306 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 140 transitions. [2022-10-16 14:37:39,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.9696969696969697) internal successors, (65), 34 states have internal predecessors, (65), 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 14:37:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 140 transitions. [2022-10-16 14:37:39,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 14:37:39,308 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:39,308 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:39,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-10-16 14:37:39,522 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 14:37:39,522 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:39,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:39,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1062794295, now seen corresponding path program 1 times [2022-10-16 14:37:39,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:39,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457171017] [2022-10-16 14:37:39,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:39,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:39,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:39,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457171017] [2022-10-16 14:37:39,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457171017] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:39,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657017671] [2022-10-16 14:37:39,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:39,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:39,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:39,914 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 14:37:39,916 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 14:37:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:40,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 14:37:40,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:40,163 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:40,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:40,440 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 1 proven. 68 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:40,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657017671] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:40,441 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:40,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-10-16 14:37:40,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837063558] [2022-10-16 14:37:40,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:40,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 14:37:40,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:40,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 14:37:40,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:37:40,443 INFO L87 Difference]: Start difference. First operand 129 states and 140 transitions. Second operand has 26 states, 25 states have (on average 3.96) internal successors, (99), 26 states have internal predecessors, (99), 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 14:37:41,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:41,048 INFO L93 Difference]: Finished difference Result 181 states and 197 transitions. [2022-10-16 14:37:41,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 14:37:41,049 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.96) internal successors, (99), 26 states have internal predecessors, (99), 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 69 [2022-10-16 14:37:41,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:41,050 INFO L225 Difference]: With dead ends: 181 [2022-10-16 14:37:41,050 INFO L226 Difference]: Without dead ends: 180 [2022-10-16 14:37:41,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=590, Invalid=1666, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 14:37:41,052 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 387 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:41,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 139 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:37:41,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-10-16 14:37:41,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 175. [2022-10-16 14:37:41,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 172 states have (on average 1.1104651162790697) internal successors, (191), 174 states have internal predecessors, (191), 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 14:37:41,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 191 transitions. [2022-10-16 14:37:41,072 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 191 transitions. Word has length 69 [2022-10-16 14:37:41,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:41,072 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 191 transitions. [2022-10-16 14:37:41,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.96) internal successors, (99), 26 states have internal predecessors, (99), 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 14:37:41,073 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 191 transitions. [2022-10-16 14:37:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 14:37:41,073 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:41,074 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:41,113 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 14:37:41,288 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 14:37:41,288 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:41,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:41,289 INFO L85 PathProgramCache]: Analyzing trace with hash 856902027, now seen corresponding path program 1 times [2022-10-16 14:37:41,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:41,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252792837] [2022-10-16 14:37:41,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:41,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 14:37:41,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:41,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252792837] [2022-10-16 14:37:41,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252792837] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:41,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674992806] [2022-10-16 14:37:41,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:41,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:41,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:41,634 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 14:37:41,638 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 14:37:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:41,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:37:41,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 14:37:41,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 14:37:41,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674992806] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:41,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:41,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 14:37:41,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421526940] [2022-10-16 14:37:41,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:41,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:37:41,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:41,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:37:41,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:37:41,957 INFO L87 Difference]: Start difference. First operand 175 states and 191 transitions. Second operand has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 24 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 14:37:42,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:42,169 INFO L93 Difference]: Finished difference Result 179 states and 195 transitions. [2022-10-16 14:37:42,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 14:37:42,169 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 24 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) Word has length 71 [2022-10-16 14:37:42,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:42,171 INFO L225 Difference]: With dead ends: 179 [2022-10-16 14:37:42,171 INFO L226 Difference]: Without dead ends: 178 [2022-10-16 14:37:42,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:37:42,173 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 70 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:42,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 147 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:42,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-10-16 14:37:42,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 177. [2022-10-16 14:37:42,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 174 states have (on average 1.0804597701149425) internal successors, (188), 176 states have internal predecessors, (188), 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 14:37:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 188 transitions. [2022-10-16 14:37:42,191 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 188 transitions. Word has length 71 [2022-10-16 14:37:42,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:42,192 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 188 transitions. [2022-10-16 14:37:42,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 24 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 14:37:42,192 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 188 transitions. [2022-10-16 14:37:42,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-16 14:37:42,193 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:42,193 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2022-10-16 14:37:42,230 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 14:37:42,407 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 14:37:42,408 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:42,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:42,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1206783008, now seen corresponding path program 2 times [2022-10-16 14:37:42,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:42,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288995470] [2022-10-16 14:37:42,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:42,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:43,016 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:43,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:43,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288995470] [2022-10-16 14:37:43,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288995470] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:43,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392195397] [2022-10-16 14:37:43,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:37:43,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:43,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:43,018 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 14:37:43,020 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 14:37:43,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:37:43,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:43,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:37:43,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:43,223 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:43,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:43,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392195397] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:43,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:43,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2022-10-16 14:37:43,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956086343] [2022-10-16 14:37:43,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:43,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 14:37:43,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:43,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 14:37:43,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 14:37:43,741 INFO L87 Difference]: Start difference. First operand 177 states and 188 transitions. Second operand has 48 states, 47 states have (on average 2.9148936170212765) internal successors, (137), 48 states have internal predecessors, (137), 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 14:37:44,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:44,256 INFO L93 Difference]: Finished difference Result 272 states and 306 transitions. [2022-10-16 14:37:44,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-10-16 14:37:44,260 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.9148936170212765) internal successors, (137), 48 states have internal predecessors, (137), 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 86 [2022-10-16 14:37:44,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:44,262 INFO L225 Difference]: With dead ends: 272 [2022-10-16 14:37:44,262 INFO L226 Difference]: Without dead ends: 271 [2022-10-16 14:37:44,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1382, Invalid=3448, Unknown=0, NotChecked=0, Total=4830 [2022-10-16 14:37:44,265 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 211 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:44,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 337 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:44,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-10-16 14:37:44,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 249. [2022-10-16 14:37:44,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 246 states have (on average 1.1056910569105691) internal successors, (272), 248 states have internal predecessors, (272), 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 14:37:44,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 272 transitions. [2022-10-16 14:37:44,289 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 272 transitions. Word has length 86 [2022-10-16 14:37:44,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:44,290 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 272 transitions. [2022-10-16 14:37:44,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.9148936170212765) internal successors, (137), 48 states have internal predecessors, (137), 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 14:37:44,290 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 272 transitions. [2022-10-16 14:37:44,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-16 14:37:44,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:44,296 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:44,332 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 14:37:44,509 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 14:37:44,509 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:44,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:44,510 INFO L85 PathProgramCache]: Analyzing trace with hash -556836805, now seen corresponding path program 2 times [2022-10-16 14:37:44,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:44,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060133764] [2022-10-16 14:37:44,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:44,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:45,399 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 411 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:45,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:45,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060133764] [2022-10-16 14:37:45,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060133764] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:45,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189039883] [2022-10-16 14:37:45,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:37:45,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:45,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:45,401 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 14:37:45,421 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 14:37:45,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:37:45,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:45,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:37:45,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 411 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:45,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 1 proven. 410 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:46,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189039883] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:46,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:46,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-10-16 14:37:46,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625107375] [2022-10-16 14:37:46,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:46,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 14:37:46,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:46,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 14:37:46,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=1887, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 14:37:46,458 INFO L87 Difference]: Start difference. First operand 249 states and 272 transitions. Second operand has 50 states, 49 states have (on average 3.979591836734694) internal successors, (195), 50 states have internal predecessors, (195), 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 14:37:48,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:48,277 INFO L93 Difference]: Finished difference Result 355 states and 389 transitions. [2022-10-16 14:37:48,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 14:37:48,277 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 3.979591836734694) internal successors, (195), 50 states have internal predecessors, (195), 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 117 [2022-10-16 14:37:48,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:48,280 INFO L225 Difference]: With dead ends: 355 [2022-10-16 14:37:48,280 INFO L226 Difference]: Without dead ends: 354 [2022-10-16 14:37:48,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2292 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2318, Invalid=6802, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 14:37:48,284 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 599 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:48,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 233 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:37:48,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-10-16 14:37:48,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 343. [2022-10-16 14:37:48,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 340 states have (on average 1.1088235294117648) internal successors, (377), 342 states have internal predecessors, (377), 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 14:37:48,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 377 transitions. [2022-10-16 14:37:48,312 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 377 transitions. Word has length 117 [2022-10-16 14:37:48,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:48,313 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 377 transitions. [2022-10-16 14:37:48,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 3.979591836734694) internal successors, (195), 50 states have internal predecessors, (195), 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 14:37:48,313 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 377 transitions. [2022-10-16 14:37:48,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-10-16 14:37:48,314 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:48,315 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:48,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:48,515 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 14:37:48,516 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:48,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:48,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1750745469, now seen corresponding path program 2 times [2022-10-16 14:37:48,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:48,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848356275] [2022-10-16 14:37:48,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:48,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 14:37:49,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:49,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848356275] [2022-10-16 14:37:49,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848356275] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:49,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186543023] [2022-10-16 14:37:49,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:37:49,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:49,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:49,181 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 14:37:49,209 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 14:37:49,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:37:49,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:49,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:37:49,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:49,442 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 14:37:49,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:50,022 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 14:37:50,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186543023] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:50,022 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:50,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2022-10-16 14:37:50,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263401048] [2022-10-16 14:37:50,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:50,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 14:37:50,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:50,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 14:37:50,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 14:37:50,026 INFO L87 Difference]: Start difference. First operand 343 states and 377 transitions. Second operand has 48 states, 47 states have (on average 4.25531914893617) internal successors, (200), 48 states have internal predecessors, (200), 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 14:37:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:50,621 INFO L93 Difference]: Finished difference Result 347 states and 381 transitions. [2022-10-16 14:37:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-16 14:37:50,621 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.25531914893617) internal successors, (200), 48 states have internal predecessors, (200), 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 119 [2022-10-16 14:37:50,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:50,625 INFO L225 Difference]: With dead ends: 347 [2022-10-16 14:37:50,625 INFO L226 Difference]: Without dead ends: 346 [2022-10-16 14:37:50,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1382, Invalid=3448, Unknown=0, NotChecked=0, Total=4830 [2022-10-16 14:37:50,627 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 138 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:50,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 250 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:37:50,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-10-16 14:37:50,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 345. [2022-10-16 14:37:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 342 states have (on average 1.0760233918128654) internal successors, (368), 344 states have internal predecessors, (368), 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 14:37:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 368 transitions. [2022-10-16 14:37:50,659 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 368 transitions. Word has length 119 [2022-10-16 14:37:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:50,660 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 368 transitions. [2022-10-16 14:37:50,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.25531914893617) internal successors, (200), 48 states have internal predecessors, (200), 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 14:37:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 368 transitions. [2022-10-16 14:37:50,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-16 14:37:50,662 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:50,662 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2022-10-16 14:37:50,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:50,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:50,876 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:37:50,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:50,878 INFO L85 PathProgramCache]: Analyzing trace with hash -927803288, now seen corresponding path program 3 times [2022-10-16 14:37:50,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:50,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919435645] [2022-10-16 14:37:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:50,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:52,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:52,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919435645] [2022-10-16 14:37:52,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919435645] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:52,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488962529] [2022-10-16 14:37:52,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:37:52,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:52,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:52,712 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:52,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 14:37:56,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2022-10-16 14:37:56,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:56,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-16 14:37:56,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:56,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:56,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:58,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:37:58,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488962529] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:58,741 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:58,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2022-10-16 14:37:58,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966133424] [2022-10-16 14:37:58,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:58,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-10-16 14:37:58,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:58,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-10-16 14:37:58,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 14:37:58,749 INFO L87 Difference]: Start difference. First operand 345 states and 368 transitions. Second operand has 96 states, 95 states have (on average 2.957894736842105) internal successors, (281), 96 states have internal predecessors, (281), 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 14:38:00,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:00,586 INFO L93 Difference]: Finished difference Result 536 states and 606 transitions. [2022-10-16 14:38:00,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-10-16 14:38:00,587 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.957894736842105) internal successors, (281), 96 states have internal predecessors, (281), 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 158 [2022-10-16 14:38:00,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:00,590 INFO L225 Difference]: With dead ends: 536 [2022-10-16 14:38:00,591 INFO L226 Difference]: Without dead ends: 535 [2022-10-16 14:38:00,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4408 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=5642, Invalid=14380, Unknown=0, NotChecked=0, Total=20022 [2022-10-16 14:38:00,600 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 494 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:00,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 425 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:38:00,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-10-16 14:38:00,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 489. [2022-10-16 14:38:00,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 486 states have (on average 1.102880658436214) internal successors, (536), 488 states have internal predecessors, (536), 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 14:38:00,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 536 transitions. [2022-10-16 14:38:00,650 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 536 transitions. Word has length 158 [2022-10-16 14:38:00,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:00,651 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 536 transitions. [2022-10-16 14:38:00,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.957894736842105) internal successors, (281), 96 states have internal predecessors, (281), 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 14:38:00,651 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 536 transitions. [2022-10-16 14:38:00,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-10-16 14:38:00,654 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:00,655 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 22, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:38:00,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 14:38:00,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:00,868 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:38:00,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:00,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1826378465, now seen corresponding path program 3 times [2022-10-16 14:38:00,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:00,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809007119] [2022-10-16 14:38:00,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:00,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 0 proven. 1959 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:38:03,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:03,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809007119] [2022-10-16 14:38:03,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809007119] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:03,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976660657] [2022-10-16 14:38:03,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:38:03,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:03,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:03,260 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:38:03,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 14:38:03,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:38:03,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:38:03,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:38:03,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:38:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2003 trivial. 0 not checked. [2022-10-16 14:38:03,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:38:03,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2003 trivial. 0 not checked. [2022-10-16 14:38:03,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976660657] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:38:03,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:38:03,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 6, 7] total 59 [2022-10-16 14:38:03,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705991401] [2022-10-16 14:38:03,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:38:03,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-10-16 14:38:03,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:38:03,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-10-16 14:38:03,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=633, Invalid=2789, Unknown=0, NotChecked=0, Total=3422 [2022-10-16 14:38:03,780 INFO L87 Difference]: Start difference. First operand 489 states and 536 transitions. Second operand has 59 states, 59 states have (on average 3.983050847457627) internal successors, (235), 59 states have internal predecessors, (235), 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 14:38:06,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:06,075 INFO L93 Difference]: Finished difference Result 681 states and 729 transitions. [2022-10-16 14:38:06,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-10-16 14:38:06,078 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 3.983050847457627) internal successors, (235), 59 states have internal predecessors, (235), 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 213 [2022-10-16 14:38:06,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:06,081 INFO L225 Difference]: With dead ends: 681 [2022-10-16 14:38:06,081 INFO L226 Difference]: Without dead ends: 495 [2022-10-16 14:38:06,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2708 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2688, Invalid=10422, Unknown=0, NotChecked=0, Total=13110 [2022-10-16 14:38:06,084 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 545 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:06,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 244 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:38:06,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-10-16 14:38:06,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2022-10-16 14:38:06,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 492 states have (on average 1.0975609756097562) internal successors, (540), 494 states have internal predecessors, (540), 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 14:38:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 540 transitions. [2022-10-16 14:38:06,121 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 540 transitions. Word has length 213 [2022-10-16 14:38:06,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:06,121 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 540 transitions. [2022-10-16 14:38:06,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 3.983050847457627) internal successors, (235), 59 states have internal predecessors, (235), 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 14:38:06,121 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 540 transitions. [2022-10-16 14:38:06,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-10-16 14:38:06,124 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:06,125 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 22, 22, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:38:06,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 14:38:06,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:06,339 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:38:06,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:06,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1021579307, now seen corresponding path program 3 times [2022-10-16 14:38:06,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:06,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309794865] [2022-10-16 14:38:06,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:06,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2068 backedges. 0 proven. 2002 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 14:38:08,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:08,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309794865] [2022-10-16 14:38:08,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309794865] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:08,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684851561] [2022-10-16 14:38:08,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:38:08,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:08,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:08,450 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:38:08,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 14:38:08,597 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:38:08,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:38:08,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:38:08,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:38:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2068 backedges. 43 proven. 132 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2022-10-16 14:38:08,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:38:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2068 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2022-10-16 14:38:09,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684851561] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:38:09,766 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:38:09,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 6, 6] total 57 [2022-10-16 14:38:09,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455686503] [2022-10-16 14:38:09,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:38:09,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-10-16 14:38:09,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:38:09,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-10-16 14:38:09,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=764, Invalid=2542, Unknown=0, NotChecked=0, Total=3306 [2022-10-16 14:38:09,769 INFO L87 Difference]: Start difference. First operand 495 states and 540 transitions. Second operand has 58 states, 57 states have (on average 4.614035087719298) internal successors, (263), 58 states have internal predecessors, (263), 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 14:38:10,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:10,279 INFO L93 Difference]: Finished difference Result 495 states and 540 transitions. [2022-10-16 14:38:10,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:38:10,279 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 4.614035087719298) internal successors, (263), 58 states have internal predecessors, (263), 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 227 [2022-10-16 14:38:10,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:10,282 INFO L225 Difference]: With dead ends: 495 [2022-10-16 14:38:10,282 INFO L226 Difference]: Without dead ends: 494 [2022-10-16 14:38:10,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 995 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1301, Invalid=3669, Unknown=0, NotChecked=0, Total=4970 [2022-10-16 14:38:10,284 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 137 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:10,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 160 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:38:10,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-10-16 14:38:10,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2022-10-16 14:38:10,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 492 states have (on average 1.0955284552845528) internal successors, (539), 493 states have internal predecessors, (539), 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 14:38:10,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 539 transitions. [2022-10-16 14:38:10,324 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 539 transitions. Word has length 227 [2022-10-16 14:38:10,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:10,325 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 539 transitions. [2022-10-16 14:38:10,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 4.614035087719298) internal successors, (263), 58 states have internal predecessors, (263), 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 14:38:10,325 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 539 transitions. [2022-10-16 14:38:10,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-10-16 14:38:10,328 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:10,328 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 23, 23, 23, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:38:10,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 14:38:10,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 14:38:10,542 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:38:10,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:10,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1727061030, now seen corresponding path program 4 times [2022-10-16 14:38:10,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:10,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694502589] [2022-10-16 14:38:10,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:13,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2205 backedges. 8 proven. 2152 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:38:13,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:13,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694502589] [2022-10-16 14:38:13,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694502589] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:13,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463418106] [2022-10-16 14:38:13,380 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:38:13,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:13,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:13,381 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:38:13,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 14:38:13,569 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:38:13,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:38:13,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 14:38:13,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:38:14,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2205 backedges. 0 proven. 2142 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 14:38:14,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:38:17,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2205 backedges. 3 proven. 2139 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 14:38:17,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463418106] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:38:17,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:38:17,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 51, 51] total 110 [2022-10-16 14:38:17,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246698004] [2022-10-16 14:38:17,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:38:17,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2022-10-16 14:38:17,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:38:17,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2022-10-16 14:38:17,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2682, Invalid=9528, Unknown=0, NotChecked=0, Total=12210 [2022-10-16 14:38:17,255 INFO L87 Difference]: Start difference. First operand 494 states and 539 transitions. Second operand has 111 states, 110 states have (on average 4.0181818181818185) internal successors, (442), 111 states have internal predecessors, (442), 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 14:38:26,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:26,250 INFO L93 Difference]: Finished difference Result 711 states and 782 transitions. [2022-10-16 14:38:26,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-10-16 14:38:26,251 INFO L78 Accepts]: Start accepts. Automaton has has 111 states, 110 states have (on average 4.0181818181818185) internal successors, (442), 111 states have internal predecessors, (442), 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 233 [2022-10-16 14:38:26,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:26,254 INFO L225 Difference]: With dead ends: 711 [2022-10-16 14:38:26,254 INFO L226 Difference]: Without dead ends: 710 [2022-10-16 14:38:26,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 410 SyntacticMatches, 1 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13205 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=11128, Invalid=36614, Unknown=0, NotChecked=0, Total=47742 [2022-10-16 14:38:26,258 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 849 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:26,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 311 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:38:26,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-10-16 14:38:26,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2022-10-16 14:38:26,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 708 states have (on average 1.0663841807909604) internal successors, (755), 709 states have internal predecessors, (755), 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 14:38:26,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 755 transitions. [2022-10-16 14:38:26,324 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 755 transitions. Word has length 233 [2022-10-16 14:38:26,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:26,325 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 755 transitions. [2022-10-16 14:38:26,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 110 states have (on average 4.0181818181818185) internal successors, (442), 111 states have internal predecessors, (442), 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 14:38:26,325 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 755 transitions. [2022-10-16 14:38:26,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-10-16 14:38:26,328 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:26,328 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2022-10-16 14:38:26,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 14:38:26,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 14:38:26,541 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:38:26,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:26,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1068803848, now seen corresponding path program 4 times [2022-10-16 14:38:26,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:26,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702409621] [2022-10-16 14:38:26,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:26,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 6347 backedges. 0 proven. 6302 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:38:33,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:33,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702409621] [2022-10-16 14:38:33,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702409621] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:33,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826586487] [2022-10-16 14:38:33,003 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:38:33,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:33,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:33,004 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:38:33,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 14:39:15,915 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:39:15,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:39:15,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 95 conjunts are in the unsatisfiable core [2022-10-16 14:39:15,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:16,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6347 backedges. 0 proven. 6302 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:39:16,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:24,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6347 backedges. 0 proven. 6302 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:39:24,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826586487] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:24,942 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:24,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 191 [2022-10-16 14:39:24,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811025055] [2022-10-16 14:39:24,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:24,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-10-16 14:39:24,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:24,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-10-16 14:39:24,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9311, Invalid=27361, Unknown=0, NotChecked=0, Total=36672 [2022-10-16 14:39:24,952 INFO L87 Difference]: Start difference. First operand 710 states and 755 transitions. Second operand has 192 states, 191 states have (on average 2.979057591623037) internal successors, (569), 192 states have internal predecessors, (569), 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 14:39:32,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:32,741 INFO L93 Difference]: Finished difference Result 1091 states and 1231 transitions. [2022-10-16 14:39:32,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-10-16 14:39:32,742 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 2.979057591623037) internal successors, (569), 192 states have internal predecessors, (569), 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 302 [2022-10-16 14:39:32,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:32,748 INFO L225 Difference]: With dead ends: 1091 [2022-10-16 14:39:32,748 INFO L226 Difference]: Without dead ends: 1090 [2022-10-16 14:39:32,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18040 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=22802, Invalid=58708, Unknown=0, NotChecked=0, Total=81510 [2022-10-16 14:39:32,755 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1323 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:32,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 633 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:39:32,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2022-10-16 14:39:32,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 998. [2022-10-16 14:39:32,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 996 states have (on average 1.0953815261044177) internal successors, (1091), 997 states have internal predecessors, (1091), 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 14:39:32,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1091 transitions. [2022-10-16 14:39:32,837 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1091 transitions. Word has length 302 [2022-10-16 14:39:32,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:32,837 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1091 transitions. [2022-10-16 14:39:32,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 2.979057591623037) internal successors, (569), 192 states have internal predecessors, (569), 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 14:39:32,838 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1091 transitions. [2022-10-16 14:39:32,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2022-10-16 14:39:32,842 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:32,842 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 51, 50, 50, 50, 50, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:32,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-10-16 14:39:33,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 14:39:33,053 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:39:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:33,054 INFO L85 PathProgramCache]: Analyzing trace with hash -431013209, now seen corresponding path program 5 times [2022-10-16 14:39:33,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:33,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405969116] [2022-10-16 14:39:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:33,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:43,108 INFO L134 CoverageAnalysis]: Checked inductivity of 10116 backedges. 8 proven. 10063 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:39:43,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:43,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405969116] [2022-10-16 14:39:43,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405969116] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:43,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102256347] [2022-10-16 14:39:43,109 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:39:43,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:43,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:43,110 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:39:43,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process