/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-crafted-1/mono-crafted_13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:42:50,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:42:50,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:42:50,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:42:50,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:42:50,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:42:50,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:42:50,894 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 14:42:50,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:42:50,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:42:50,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:42:50,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:42:50,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:42:50,955 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:42:50,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:42:50,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:42:50,958 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:42:50,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:42:50,959 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:42:50,960 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:42:50,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:42:50,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:42:50,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:42:50,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:42:50,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:42:50,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:42:50,961 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:42:50,961 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:42:50,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:42:50,962 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:42:50,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:42:50,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:42:50,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:42:50,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:42:50,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:42:50,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:42:50,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:42:50,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:42:50,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:42:50,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:42:50,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:42:50,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:42:51,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:42:51,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:42:51,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:42:51,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:42:51,464 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:42:51,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/mono-crafted_13.c [2022-10-16 14:42:51,545 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25afb7090/8992943187934d3fb8af0a02479916e6/FLAG237f633f5 [2022-10-16 14:42:52,173 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:42:52,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/mono-crafted_13.c [2022-10-16 14:42:52,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25afb7090/8992943187934d3fb8af0a02479916e6/FLAG237f633f5 [2022-10-16 14:42:52,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25afb7090/8992943187934d3fb8af0a02479916e6 [2022-10-16 14:42:52,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:42:52,222 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:42:52,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:42:52,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:42:52,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:42:52,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a7e712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52, skipping insertion in model container [2022-10-16 14:42:52,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:42:52,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:42:52,538 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-crafted-1/mono-crafted_13.c[319,332] [2022-10-16 14:42:52,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:42:52,573 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:42:52,589 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-crafted-1/mono-crafted_13.c[319,332] [2022-10-16 14:42:52,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:42:52,624 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:42:52,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52 WrapperNode [2022-10-16 14:42:52,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:42:52,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:42:52,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:42:52,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:42:52,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,675 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2022-10-16 14:42:52,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:42:52,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:42:52,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:42:52,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:42:52,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,728 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:42:52,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:42:52,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:42:52,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:42:52,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (1/1) ... [2022-10-16 14:42:52,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:42:52,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:52,780 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 14:42:52,807 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 14:42:52,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:42:52,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:42:52,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:42:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:42:52,945 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:42:52,948 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:42:53,111 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:42:53,119 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:42:53,120 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 14:42:53,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:42:53 BoogieIcfgContainer [2022-10-16 14:42:53,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:42:53,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:42:53,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:42:53,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:42:53,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:42:52" (1/3) ... [2022-10-16 14:42:53,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc0ab98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:42:53, skipping insertion in model container [2022-10-16 14:42:53,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:52" (2/3) ... [2022-10-16 14:42:53,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc0ab98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:42:53, skipping insertion in model container [2022-10-16 14:42:53,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:42:53" (3/3) ... [2022-10-16 14:42:53,134 INFO L112 eAbstractionObserver]: Analyzing ICFG mono-crafted_13.c [2022-10-16 14:42:53,159 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:42:53,159 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 14:42:53,272 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:42:53,290 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;@1bee22fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:42:53,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 14:42:53,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:53,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:42:53,313 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:53,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:42:53,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:42:53,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:53,325 INFO L85 PathProgramCache]: Analyzing trace with hash 28698663, now seen corresponding path program 1 times [2022-10-16 14:42:53,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:53,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601566256] [2022-10-16 14:42:53,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:53,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:53,675 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 14:42:53,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:53,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601566256] [2022-10-16 14:42:53,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601566256] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:53,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:53,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:42:53,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305006612] [2022-10-16 14:42:53,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:53,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:42:53,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:53,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:42:53,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:42:53,744 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:53,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:53,823 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2022-10-16 14:42:53,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:42:53,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:42:53,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:53,836 INFO L225 Difference]: With dead ends: 68 [2022-10-16 14:42:53,837 INFO L226 Difference]: Without dead ends: 31 [2022-10-16 14:42:53,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:42:53,845 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 5 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:53,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 53 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:53,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-16 14:42:53,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2022-10-16 14:42:53,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:53,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-10-16 14:42:53,902 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 5 [2022-10-16 14:42:53,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:53,902 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-10-16 14:42:53,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:53,903 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-10-16 14:42:53,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:42:53,904 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:53,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:42:53,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:42:53,905 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:42:53,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:53,906 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2022-10-16 14:42:53,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:53,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742164468] [2022-10-16 14:42:53,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:53,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:53,977 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 14:42:53,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:53,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742164468] [2022-10-16 14:42:53,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742164468] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:53,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:53,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:42:53,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149896853] [2022-10-16 14:42:53,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:53,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:42:53,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:53,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:42:53,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:42:53,982 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. 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 14:42:54,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:54,027 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-10-16 14:42:54,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:42:54,027 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 14:42:54,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:54,028 INFO L225 Difference]: With dead ends: 31 [2022-10-16 14:42:54,029 INFO L226 Difference]: Without dead ends: 29 [2022-10-16 14:42:54,029 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 14:42:54,031 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:54,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 58 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:54,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-16 14:42:54,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-10-16 14:42:54,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.631578947368421) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:54,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-10-16 14:42:54,039 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 5 [2022-10-16 14:42:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:54,039 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-10-16 14:42:54,040 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 14:42:54,040 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-10-16 14:42:54,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:42:54,041 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:54,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:54,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:42:54,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:42:54,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:54,042 INFO L85 PathProgramCache]: Analyzing trace with hash 582876386, now seen corresponding path program 1 times [2022-10-16 14:42:54,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:54,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026312472] [2022-10-16 14:42:54,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:54,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:54,154 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 14:42:54,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:54,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026312472] [2022-10-16 14:42:54,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026312472] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:54,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329445195] [2022-10-16 14:42:54,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:54,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:54,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:54,162 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 14:42:54,181 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 14:42:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:54,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:42:54,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:54,283 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 14:42:54,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:54,323 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 14:42:54,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329445195] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:54,324 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:54,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:42:54,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019505978] [2022-10-16 14:42:54,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:54,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:42:54,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:54,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:42:54,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:42:54,328 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:54,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:54,428 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2022-10-16 14:42:54,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:42:54,428 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 14:42:54,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:54,429 INFO L225 Difference]: With dead ends: 56 [2022-10-16 14:42:54,430 INFO L226 Difference]: Without dead ends: 33 [2022-10-16 14:42:54,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:42:54,433 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 30 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:54,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 58 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:54,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-16 14:42:54,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2022-10-16 14:42:54,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 29 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:54,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-10-16 14:42:54,440 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 9 [2022-10-16 14:42:54,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:54,441 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-10-16 14:42:54,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:54,441 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-10-16 14:42:54,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:42:54,442 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:54,442 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:42:54,476 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 14:42:54,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:54,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:42:54,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:54,659 INFO L85 PathProgramCache]: Analyzing trace with hash 889332620, now seen corresponding path program 1 times [2022-10-16 14:42:54,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:54,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818253877] [2022-10-16 14:42:54,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:54,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:54,748 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 14:42:54,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:54,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818253877] [2022-10-16 14:42:54,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818253877] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:54,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116447236] [2022-10-16 14:42:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:54,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:54,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:54,752 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 14:42:54,774 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 14:42:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:54,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:42:54,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:54,844 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 14:42:54,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:42:54,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116447236] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:54,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:42:54,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:42:54,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037903434] [2022-10-16 14:42:54,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:54,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:42:54,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:54,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:42:54,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:42:54,848 INFO L87 Difference]: Start difference. First operand 30 states and 32 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 14:42:54,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:54,894 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2022-10-16 14:42:54,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:42:54,895 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 14:42:54,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:54,896 INFO L225 Difference]: With dead ends: 39 [2022-10-16 14:42:54,896 INFO L226 Difference]: Without dead ends: 37 [2022-10-16 14:42:54,896 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 14:42:54,898 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 19 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:54,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 43 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:54,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-16 14:42:54,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 28. [2022-10-16 14:42:54,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-10-16 14:42:54,917 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 10 [2022-10-16 14:42:54,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:54,918 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-10-16 14:42:54,918 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 14:42:54,918 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-10-16 14:42:54,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:42:54,921 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:54,921 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:54,959 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 14:42:55,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 14:42:55,123 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:42:55,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:55,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1192983585, now seen corresponding path program 1 times [2022-10-16 14:42:55,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:55,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073022422] [2022-10-16 14:42:55,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:55,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:55,218 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:42:55,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:55,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073022422] [2022-10-16 14:42:55,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073022422] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:55,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:55,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:42:55,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098714763] [2022-10-16 14:42:55,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:55,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:42:55,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:55,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:42:55,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:42:55,223 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 14:42:55,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:55,246 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-10-16 14:42:55,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:42:55,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 15 [2022-10-16 14:42:55,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:55,248 INFO L225 Difference]: With dead ends: 37 [2022-10-16 14:42:55,248 INFO L226 Difference]: Without dead ends: 36 [2022-10-16 14:42:55,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:42:55,253 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:55,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 36 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:55,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-16 14:42:55,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2022-10-16 14:42:55,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:55,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-10-16 14:42:55,269 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 15 [2022-10-16 14:42:55,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:55,269 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-10-16 14:42:55,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 14:42:55,270 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-10-16 14:42:55,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:42:55,270 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:55,270 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:55,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:42:55,272 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 14:42:55,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:55,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1672214471, now seen corresponding path program 1 times [2022-10-16 14:42:55,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:55,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707606796] [2022-10-16 14:42:55,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:55,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:42:55,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:55,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707606796] [2022-10-16 14:42:55,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707606796] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:55,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:55,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:42:55,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198519999] [2022-10-16 14:42:55,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:55,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:42:55,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:55,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:42:55,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:42:55,341 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 3 states, 2 states have (on average 5.5) 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 14:42:55,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:55,353 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-10-16 14:42:55,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:42:55,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 14:42:55,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:55,354 INFO L225 Difference]: With dead ends: 40 [2022-10-16 14:42:55,355 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 14:42:55,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:42:55,356 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:55,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 26 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:55,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 14:42:55,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2022-10-16 14:42:55,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-10-16 14:42:55,363 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 16 [2022-10-16 14:42:55,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:55,363 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-10-16 14:42:55,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) 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 14:42:55,364 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-10-16 14:42:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:42:55,365 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:55,365 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:55,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:42:55,365 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:42:55,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:55,366 INFO L85 PathProgramCache]: Analyzing trace with hash 384400464, now seen corresponding path program 1 times [2022-10-16 14:42:55,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:55,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543335930] [2022-10-16 14:42:55,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:55,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:55,445 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:42:55,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:55,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543335930] [2022-10-16 14:42:55,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543335930] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:55,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894949584] [2022-10-16 14:42:55,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:55,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:55,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:55,449 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 14:42:55,457 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 14:42:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:55,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:42:55,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:55,582 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:55,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:55,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894949584] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:55,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:55,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 15 [2022-10-16 14:42:55,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736511565] [2022-10-16 14:42:55,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:55,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 14:42:55,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:55,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 14:42:55,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:42:55,680 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 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 14:42:55,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:55,915 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2022-10-16 14:42:55,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 14:42:55,915 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 14:42:55,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:55,919 INFO L225 Difference]: With dead ends: 86 [2022-10-16 14:42:55,919 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 14:42:55,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:42:55,922 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 57 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:55,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 91 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:55,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 14:42:55,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2022-10-16 14:42:55,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 59 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:55,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2022-10-16 14:42:55,950 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 19 [2022-10-16 14:42:55,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:55,950 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2022-10-16 14:42:55,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 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 14:42:55,951 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2022-10-16 14:42:55,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 14:42:55,953 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:55,954 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:55,978 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 14:42:56,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:56,155 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 14:42:56,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:56,157 INFO L85 PathProgramCache]: Analyzing trace with hash -749447127, now seen corresponding path program 1 times [2022-10-16 14:42:56,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:56,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634343587] [2022-10-16 14:42:56,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:56,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:56,245 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-16 14:42:56,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:56,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634343587] [2022-10-16 14:42:56,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634343587] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:42:56,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:42:56,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:42:56,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935982735] [2022-10-16 14:42:56,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:42:56,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:42:56,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:56,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:42:56,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:42:56,249 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:56,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:56,264 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2022-10-16 14:42:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:42:56,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-16 14:42:56,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:56,266 INFO L225 Difference]: With dead ends: 60 [2022-10-16 14:42:56,266 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:42:56,266 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 14:42:56,267 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:56,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 34 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:42:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:42:56,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 14:42:56,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 1.2) internal successors, (66), 58 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 14:42:56,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2022-10-16 14:42:56,278 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 32 [2022-10-16 14:42:56,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:56,278 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2022-10-16 14:42:56,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:56,279 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2022-10-16 14:42:56,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 14:42:56,280 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:56,280 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:56,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:42:56,281 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:42:56,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:56,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1758024381, now seen corresponding path program 1 times [2022-10-16 14:42:56,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:56,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360657342] [2022-10-16 14:42:56,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:56,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:56,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:56,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360657342] [2022-10-16 14:42:56,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360657342] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:56,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191255937] [2022-10-16 14:42:56,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:56,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:56,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:56,586 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 14:42:56,614 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 14:42:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:56,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 14:42:56,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:56,757 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:56,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:56,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191255937] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:56,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:56,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2022-10-16 14:42:56,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111479473] [2022-10-16 14:42:56,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:56,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 14:42:56,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:56,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 14:42:56,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:42:56,957 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 26 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:57,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:57,182 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2022-10-16 14:42:57,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:42:57,183 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 0 states have call successors, (0), 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 33 [2022-10-16 14:42:57,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:57,184 INFO L225 Difference]: With dead ends: 118 [2022-10-16 14:42:57,185 INFO L226 Difference]: Without dead ends: 83 [2022-10-16 14:42:57,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=375, Invalid=885, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 14:42:57,187 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 46 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:57,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 90 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:42:57,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-10-16 14:42:57,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-10-16 14:42:57,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.139240506329114) internal successors, (90), 82 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:57,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2022-10-16 14:42:57,197 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 33 [2022-10-16 14:42:57,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:57,198 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2022-10-16 14:42:57,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:57,198 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2022-10-16 14:42:57,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 14:42:57,200 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:57,200 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:57,230 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 14:42:57,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:57,414 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:42:57,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:57,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1937252315, now seen corresponding path program 2 times [2022-10-16 14:42:57,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:57,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305981076] [2022-10-16 14:42:57,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:57,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 12 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:57,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:57,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305981076] [2022-10-16 14:42:57,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305981076] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:57,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127829221] [2022-10-16 14:42:57,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:42:57,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:57,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:57,916 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 14:42:57,918 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 14:42:57,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:42:57,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:42:57,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 14:42:57,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:58,074 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 12 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:58,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:58,740 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 12 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:42:58,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127829221] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:58,741 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:58,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 50 [2022-10-16 14:42:58,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035937040] [2022-10-16 14:42:58,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:58,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 14:42:58,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:58,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 14:42:58,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=650, Invalid=1800, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 14:42:58,766 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand has 50 states, 50 states have (on average 2.18) internal successors, (109), 50 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 14:42:59,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:59,334 INFO L93 Difference]: Finished difference Result 166 states and 191 transitions. [2022-10-16 14:42:59,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-10-16 14:42:59,335 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.18) internal successors, (109), 50 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) Word has length 57 [2022-10-16 14:42:59,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:59,337 INFO L225 Difference]: With dead ends: 166 [2022-10-16 14:42:59,337 INFO L226 Difference]: Without dead ends: 131 [2022-10-16 14:42:59,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1107 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1467, Invalid=3645, Unknown=0, NotChecked=0, Total=5112 [2022-10-16 14:42:59,341 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 134 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:59,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 118 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:42:59,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-10-16 14:42:59,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-10-16 14:42:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 127 states have (on average 1.0866141732283465) internal successors, (138), 130 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 138 transitions. [2022-10-16 14:42:59,355 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 138 transitions. Word has length 57 [2022-10-16 14:42:59,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:59,356 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 138 transitions. [2022-10-16 14:42:59,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.18) internal successors, (109), 50 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 14:42:59,356 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 138 transitions. [2022-10-16 14:42:59,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 14:42:59,360 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:59,360 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:59,400 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 14:42:59,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 14:42:59,575 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:42:59,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:59,576 INFO L85 PathProgramCache]: Analyzing trace with hash 661009385, now seen corresponding path program 3 times [2022-10-16 14:42:59,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:59,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677884649] [2022-10-16 14:42:59,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:59,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:43:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 24 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:43:01,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:43:01,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677884649] [2022-10-16 14:43:01,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677884649] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:43:01,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182886375] [2022-10-16 14:43:01,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:43:01,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:01,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:43:01,264 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 14:43:01,281 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 14:43:01,306 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:43:01,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:43:01,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:43:01,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:43:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2022-10-16 14:43:01,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:43:01,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182886375] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:43:01,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:43:01,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [49] total 52 [2022-10-16 14:43:01,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644597934] [2022-10-16 14:43:01,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:43:01,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:43:01,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:43:01,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:43:01,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=679, Invalid=1973, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 14:43:01,458 INFO L87 Difference]: Start difference. First operand 131 states and 138 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 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 14:43:01,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:43:01,508 INFO L93 Difference]: Finished difference Result 131 states and 138 transitions. [2022-10-16 14:43:01,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:43:01,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 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 105 [2022-10-16 14:43:01,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:43:01,510 INFO L225 Difference]: With dead ends: 131 [2022-10-16 14:43:01,510 INFO L226 Difference]: Without dead ends: 130 [2022-10-16 14:43:01,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=683, Invalid=2073, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 14:43:01,513 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:43:01,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:43:01,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-10-16 14:43:01,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-10-16 14:43:01,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 127 states have (on average 1.0708661417322836) internal successors, (136), 129 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:01,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 136 transitions. [2022-10-16 14:43:01,525 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 136 transitions. Word has length 105 [2022-10-16 14:43:01,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:43:01,525 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 136 transitions. [2022-10-16 14:43:01,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 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 14:43:01,526 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 136 transitions. [2022-10-16 14:43:01,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 14:43:01,527 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:43:01,528 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:43:01,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-16 14:43:01,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:01,743 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:43:01,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:43:01,744 INFO L85 PathProgramCache]: Analyzing trace with hash -983545467, now seen corresponding path program 1 times [2022-10-16 14:43:01,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:43:01,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551350816] [2022-10-16 14:43:01,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:43:01,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:43:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:43:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1082 trivial. 0 not checked. [2022-10-16 14:43:01,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:43:01,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551350816] [2022-10-16 14:43:01,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551350816] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:43:01,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:43:01,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:43:01,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121307232] [2022-10-16 14:43:01,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:43:01,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:43:01,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:43:01,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:43:01,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:43:01,837 INFO L87 Difference]: Start difference. First operand 130 states and 136 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:01,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:43:01,860 INFO L93 Difference]: Finished difference Result 142 states and 149 transitions. [2022-10-16 14:43:01,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:43:01,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-10-16 14:43:01,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:43:01,861 INFO L225 Difference]: With dead ends: 142 [2022-10-16 14:43:01,862 INFO L226 Difference]: Without dead ends: 141 [2022-10-16 14:43:01,862 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 14:43:01,863 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:43:01,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 42 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:43:01,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-10-16 14:43:01,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2022-10-16 14:43:01,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 137 states have (on average 1.072992700729927) internal successors, (147), 139 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:01,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 147 transitions. [2022-10-16 14:43:01,873 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 147 transitions. Word has length 106 [2022-10-16 14:43:01,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:43:01,874 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 147 transitions. [2022-10-16 14:43:01,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:01,874 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 147 transitions. [2022-10-16 14:43:01,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-16 14:43:01,876 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:43:01,876 INFO L195 NwaCegarLoop]: trace histogram [25, 23, 23, 23, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:43:01,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 14:43:01,876 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:43:01,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:43:01,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1514338022, now seen corresponding path program 2 times [2022-10-16 14:43:01,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:43:01,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58169580] [2022-10-16 14:43:01,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:43:01,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:43:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:43:02,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2022-10-16 14:43:02,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:43:02,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58169580] [2022-10-16 14:43:02,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58169580] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:43:02,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299241399] [2022-10-16 14:43:02,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:43:02,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:02,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:43:02,003 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 14:43:02,021 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 14:43:02,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:43:02,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:43:02,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-16 14:43:02,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:43:03,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 72 proven. 1058 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:43:03,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:43:05,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 72 proven. 1058 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:43:05,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299241399] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:43:05,209 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:43:05,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 49, 49] total 100 [2022-10-16 14:43:05,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183739565] [2022-10-16 14:43:05,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:43:05,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-10-16 14:43:05,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:43:05,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-10-16 14:43:05,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2363, Invalid=7537, Unknown=0, NotChecked=0, Total=9900 [2022-10-16 14:43:05,219 INFO L87 Difference]: Start difference. First operand 140 states and 147 transitions. Second operand has 100 states, 100 states have (on average 2.19) internal successors, (219), 100 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:09,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:43:09,193 INFO L93 Difference]: Finished difference Result 301 states and 343 transitions. [2022-10-16 14:43:09,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-10-16 14:43:09,194 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 2.19) internal successors, (219), 100 states have internal predecessors, (219), 0 states have call successors, (0), 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 109 [2022-10-16 14:43:09,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:43:09,195 INFO L225 Difference]: With dead ends: 301 [2022-10-16 14:43:09,195 INFO L226 Difference]: Without dead ends: 257 [2022-10-16 14:43:09,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10521 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=9661, Invalid=28951, Unknown=0, NotChecked=0, Total=38612 [2022-10-16 14:43:09,206 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 598 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:43:09,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 119 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:43:09,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-10-16 14:43:09,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 245. [2022-10-16 14:43:09,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 242 states have (on average 1.0495867768595042) internal successors, (254), 244 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:09,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 254 transitions. [2022-10-16 14:43:09,221 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 254 transitions. Word has length 109 [2022-10-16 14:43:09,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:43:09,222 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 254 transitions. [2022-10-16 14:43:09,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 2.19) internal successors, (219), 100 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:09,222 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 254 transitions. [2022-10-16 14:43:09,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-10-16 14:43:09,226 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:43:09,226 INFO L195 NwaCegarLoop]: trace histogram [48, 47, 47, 47, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:43:09,261 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 14:43:09,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:09,440 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:43:09,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:43:09,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2026291821, now seen corresponding path program 1 times [2022-10-16 14:43:09,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:43:09,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839646632] [2022-10-16 14:43:09,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:43:09,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:43:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:43:14,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4471 backedges. 48 proven. 4418 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:43:14,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:43:14,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839646632] [2022-10-16 14:43:14,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839646632] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:43:14,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459691000] [2022-10-16 14:43:14,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:43:14,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:14,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:43:14,810 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 14:43:14,811 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 14:43:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:43:14,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 96 conjunts are in the unsatisfiable core [2022-10-16 14:43:14,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:43:15,246 INFO L134 CoverageAnalysis]: Checked inductivity of 4471 backedges. 48 proven. 4418 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:43:15,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:43:23,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4471 backedges. 48 proven. 4418 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:43:23,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459691000] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:43:23,612 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:43:23,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 194 [2022-10-16 14:43:23,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841993599] [2022-10-16 14:43:23,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:43:23,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2022-10-16 14:43:23,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:43:23,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2022-10-16 14:43:23,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9506, Invalid=27936, Unknown=0, NotChecked=0, Total=37442 [2022-10-16 14:43:23,622 INFO L87 Difference]: Start difference. First operand 245 states and 254 transitions. Second operand has 194 states, 194 states have (on average 2.056701030927835) internal successors, (399), 194 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:43:30,785 INFO L93 Difference]: Finished difference Result 490 states and 555 transitions. [2022-10-16 14:43:30,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-10-16 14:43:30,788 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 194 states have (on average 2.056701030927835) internal successors, (399), 194 states have internal predecessors, (399), 0 states have call successors, (0), 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 207 [2022-10-16 14:43:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:43:30,790 INFO L225 Difference]: With dead ends: 490 [2022-10-16 14:43:30,790 INFO L226 Difference]: Without dead ends: 437 [2022-10-16 14:43:30,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 286 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18279 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=23139, Invalid=59517, Unknown=0, NotChecked=0, Total=82656 [2022-10-16 14:43:30,800 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 920 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:43:30,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 119 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:43:30,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-10-16 14:43:30,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2022-10-16 14:43:30,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 434 states have (on average 1.0276497695852536) internal successors, (446), 436 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:30,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 446 transitions. [2022-10-16 14:43:30,829 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 446 transitions. Word has length 207 [2022-10-16 14:43:30,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:43:30,831 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 446 transitions. [2022-10-16 14:43:30,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 194 states have (on average 2.056701030927835) internal successors, (399), 194 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:30,832 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 446 transitions. [2022-10-16 14:43:30,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-10-16 14:43:30,844 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:43:30,844 INFO L195 NwaCegarLoop]: trace histogram [96, 95, 95, 95, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:43:30,881 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 14:43:31,059 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,SelfDestructingSolverStorable13 [2022-10-16 14:43:31,059 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:43:31,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:43:31,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2120144253, now seen corresponding path program 2 times [2022-10-16 14:43:31,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:43:31,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131782634] [2022-10-16 14:43:31,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:43:31,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:43:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:43:51,875 INFO L134 CoverageAnalysis]: Checked inductivity of 18151 backedges. 96 proven. 18050 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:43:51,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:43:51,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131782634] [2022-10-16 14:43:51,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131782634] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:43:51,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30256409] [2022-10-16 14:43:51,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:43:51,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:43:51,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:43:51,877 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 14:43:51,877 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 14:43:52,034 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:43:52,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:43:52,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 192 conjunts are in the unsatisfiable core [2022-10-16 14:43:52,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:43:52,746 INFO L134 CoverageAnalysis]: Checked inductivity of 18151 backedges. 96 proven. 18050 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:43:52,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:44:25,951 INFO L134 CoverageAnalysis]: Checked inductivity of 18151 backedges. 96 proven. 18050 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:44:25,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30256409] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:44:25,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:44:25,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [193, 193, 193] total 386 [2022-10-16 14:44:25,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82779839] [2022-10-16 14:44:25,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:44:25,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 386 states [2022-10-16 14:44:25,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:25,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 386 interpolants. [2022-10-16 14:44:25,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37442, Invalid=111168, Unknown=0, NotChecked=0, Total=148610 [2022-10-16 14:44:25,978 INFO L87 Difference]: Start difference. First operand 437 states and 446 transitions. Second operand has 386 states, 386 states have (on average 2.028497409326425) internal successors, (783), 386 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:01,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:45:01,106 INFO L93 Difference]: Finished difference Result 874 states and 987 transitions. [2022-10-16 14:45:01,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-10-16 14:45:01,108 INFO L78 Accepts]: Start accepts. Automaton has has 386 states, 386 states have (on average 2.028497409326425) internal successors, (783), 386 states have internal predecessors, (783), 0 states have call successors, (0), 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 399 [2022-10-16 14:45:01,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:45:01,113 INFO L225 Difference]: With dead ends: 874 [2022-10-16 14:45:01,113 INFO L226 Difference]: Without dead ends: 821 [2022-10-16 14:45:01,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 574 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73431 ImplicationChecksByTransitivity, 68.0s TimeCoverageRelationStatistics Valid=92355, Invalid=238845, Unknown=0, NotChecked=0, Total=331200 [2022-10-16 14:45:01,141 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 1944 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:45:01,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 131 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:45:01,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-10-16 14:45:01,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2022-10-16 14:45:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 818 states have (on average 1.0146699266503667) internal successors, (830), 820 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:01,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 830 transitions. [2022-10-16 14:45:01,189 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 830 transitions. Word has length 399 [2022-10-16 14:45:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:45:01,190 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 830 transitions. [2022-10-16 14:45:01,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 386 states, 386 states have (on average 2.028497409326425) internal successors, (783), 386 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:45:01,191 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 830 transitions. [2022-10-16 14:45:01,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2022-10-16 14:45:01,217 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:45:01,218 INFO L195 NwaCegarLoop]: trace histogram [192, 191, 191, 191, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:45:01,253 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 14:45:01,433 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,SelfDestructingSolverStorable14 [2022-10-16 14:45:01,434 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 14:45:01,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:45:01,436 INFO L85 PathProgramCache]: Analyzing trace with hash 845839261, now seen corresponding path program 3 times [2022-10-16 14:45:01,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:45:01,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657255533] [2022-10-16 14:45:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:01,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:45:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:46:33,454 INFO L134 CoverageAnalysis]: Checked inductivity of 73159 backedges. 192 proven. 72962 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:46:33,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:46:33,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657255533] [2022-10-16 14:46:33,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657255533] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:46:33,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539458164] [2022-10-16 14:46:33,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:46:33,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:46:33,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:46:33,462 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 14:46:33,464 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 14:46:33,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:46:33,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:46:33,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:46:33,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:46:34,334 INFO L134 CoverageAnalysis]: Checked inductivity of 73159 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 73154 trivial. 0 not checked. [2022-10-16 14:46:34,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:46:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 73159 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 73154 trivial. 0 not checked. [2022-10-16 14:46:35,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539458164] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:46:35,093 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:46:35,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [385, 5, 5] total 393 [2022-10-16 14:46:35,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370964586] [2022-10-16 14:46:35,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:46:35,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 393 states [2022-10-16 14:46:35,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:46:35,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 393 interpolants. [2022-10-16 14:46:35,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37278, Invalid=116778, Unknown=0, NotChecked=0, Total=154056 [2022-10-16 14:46:35,124 INFO L87 Difference]: Start difference. First operand 821 states and 830 transitions. Second operand has 393 states, 393 states have (on average 2.063613231552163) internal successors, (811), 393 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)