/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/terminator_02-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:39:48,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:39:48,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:39:48,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:39:49,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:39:49,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:39:49,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:39:49,004 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 14:39:49,062 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:39:49,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:39:49,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:39:49,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:39:49,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:39:49,065 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:39:49,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:39:49,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:39:49,069 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:39:49,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:39:49,070 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:39:49,070 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:39:49,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:39:49,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:39:49,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:39:49,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:39:49,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:39:49,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:39:49,072 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:39:49,072 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:39:49,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:39:49,072 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:39:49,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:39:49,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:39:49,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:39:49,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:39:49,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:39:49,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:39:49,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:39:49,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:39:49,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:39:49,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:39:49,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:39:49,075 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:39:49,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:39:49,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:39:49,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:39:49,480 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:39:49,481 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:39:49,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_02-2.c [2022-10-16 14:39:49,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0369b5e74/9e288c4436bd42618f486cbc72081399/FLAG43b559919 [2022-10-16 14:39:50,143 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:39:50,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-2.c [2022-10-16 14:39:50,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0369b5e74/9e288c4436bd42618f486cbc72081399/FLAG43b559919 [2022-10-16 14:39:50,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0369b5e74/9e288c4436bd42618f486cbc72081399 [2022-10-16 14:39:50,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:39:50,520 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:39:50,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:39:50,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:39:50,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:39:50,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d9f496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50, skipping insertion in model container [2022-10-16 14:39:50,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:39:50,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:39:50,771 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/terminator_02-2.c[414,427] [2022-10-16 14:39:50,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:39:50,795 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:39:50,810 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/terminator_02-2.c[414,427] [2022-10-16 14:39:50,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:39:50,831 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:39:50,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50 WrapperNode [2022-10-16 14:39:50,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:39:50,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:39:50,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:39:50,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:39:50,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,871 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-10-16 14:39:50,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:39:50,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:39:50,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:39:50,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:39:50,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,894 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:39:50,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:39:50,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:39:50,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:39:50,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (1/1) ... [2022-10-16 14:39:50,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:39:50,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:50,946 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 14:39:50,969 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 14:39:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:39:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:39:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:39:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:39:51,102 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:39:51,105 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:39:51,340 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:39:51,358 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:39:51,358 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 14:39:51,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:39:51 BoogieIcfgContainer [2022-10-16 14:39:51,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:39:51,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:39:51,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:39:51,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:39:51,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:39:50" (1/3) ... [2022-10-16 14:39:51,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129fec3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:39:51, skipping insertion in model container [2022-10-16 14:39:51,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:50" (2/3) ... [2022-10-16 14:39:51,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129fec3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:39:51, skipping insertion in model container [2022-10-16 14:39:51,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:39:51" (3/3) ... [2022-10-16 14:39:51,396 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02-2.c [2022-10-16 14:39:51,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:39:51,445 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 14:39:51,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:39:51,545 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;@3603900b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:39:51,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 14:39:51,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 20 states have (on average 1.7) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:51,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:39:51,557 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:51,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:51,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:51,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:51,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1271634291, now seen corresponding path program 1 times [2022-10-16 14:39:51,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:51,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548492060] [2022-10-16 14:39:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:51,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:51,872 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 14:39:51,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:51,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548492060] [2022-10-16 14:39:51,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548492060] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:39:51,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:39:51,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:39:51,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867288835] [2022-10-16 14:39:51,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:39:51,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:39:51,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:51,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:39:51,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:39:51,917 INFO L87 Difference]: Start difference. First operand has 27 states, 20 states have (on average 1.7) internal successors, (34), 26 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:52,025 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2022-10-16 14:39:52,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:39:52,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 14:39:52,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:52,036 INFO L225 Difference]: With dead ends: 37 [2022-10-16 14:39:52,037 INFO L226 Difference]: Without dead ends: 19 [2022-10-16 14:39:52,040 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 14:39:52,045 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 11 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:52,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 65 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:39:52,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-10-16 14:39:52,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-10-16 14:39:52,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 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 14:39:52,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-10-16 14:39:52,081 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 9 [2022-10-16 14:39:52,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:52,082 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-10-16 14:39:52,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,082 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-10-16 14:39:52,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:39:52,083 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:52,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:52,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:39:52,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:52,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:52,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1271634483, now seen corresponding path program 1 times [2022-10-16 14:39:52,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:52,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622768985] [2022-10-16 14:39:52,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:52,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:39:52,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:52,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622768985] [2022-10-16 14:39:52,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622768985] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:39:52,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:39:52,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:39:52,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958363583] [2022-10-16 14:39:52,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:39:52,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:39:52,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:52,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:39:52,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:39:52,150 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:52,178 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-10-16 14:39:52,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:39:52,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 14:39:52,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:52,179 INFO L225 Difference]: With dead ends: 20 [2022-10-16 14:39:52,180 INFO L226 Difference]: Without dead ends: 19 [2022-10-16 14:39:52,180 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 14:39:52,182 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:52,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 30 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:39:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-10-16 14:39:52,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-10-16 14:39:52,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-10-16 14:39:52,188 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2022-10-16 14:39:52,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:52,188 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-10-16 14:39:52,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,189 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-10-16 14:39:52,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:39:52,189 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:52,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:52,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:39:52,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:52,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:52,191 INFO L85 PathProgramCache]: Analyzing trace with hash 765957425, now seen corresponding path program 1 times [2022-10-16 14:39:52,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:52,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906035671] [2022-10-16 14:39:52,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:52,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:52,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:39:52,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:52,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906035671] [2022-10-16 14:39:52,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906035671] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:39:52,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:39:52,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:39:52,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645020635] [2022-10-16 14:39:52,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:39:52,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:39:52,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:52,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:39:52,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:39:52,319 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:52,354 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-10-16 14:39:52,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:39:52,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 14:39:52,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:52,356 INFO L225 Difference]: With dead ends: 26 [2022-10-16 14:39:52,356 INFO L226 Difference]: Without dead ends: 25 [2022-10-16 14:39:52,356 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 14:39:52,358 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:52,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 33 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:39:52,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-10-16 14:39:52,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2022-10-16 14:39:52,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-10-16 14:39:52,365 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 10 [2022-10-16 14:39:52,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:52,366 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-10-16 14:39:52,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,366 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-10-16 14:39:52,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:39:52,367 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:52,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:52,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:39:52,368 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:52,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:52,369 INFO L85 PathProgramCache]: Analyzing trace with hash 765963383, now seen corresponding path program 1 times [2022-10-16 14:39:52,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:52,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664107180] [2022-10-16 14:39:52,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:52,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:52,461 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 14:39:52,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:52,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664107180] [2022-10-16 14:39:52,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664107180] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:39:52,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:39:52,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:39:52,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033084062] [2022-10-16 14:39:52,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:39:52,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:39:52,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:52,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:39:52,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:39:52,468 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:52,525 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-10-16 14:39:52,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:39:52,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 14:39:52,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:52,528 INFO L225 Difference]: With dead ends: 29 [2022-10-16 14:39:52,528 INFO L226 Difference]: Without dead ends: 28 [2022-10-16 14:39:52,529 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 14:39:52,534 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:52,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:39:52,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-10-16 14:39:52,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2022-10-16 14:39:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 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 14:39:52,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-10-16 14:39:52,546 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 10 [2022-10-16 14:39:52,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:52,547 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-10-16 14:39:52,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,547 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-10-16 14:39:52,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:39:52,549 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:52,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:52,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:39:52,551 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:52,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:52,551 INFO L85 PathProgramCache]: Analyzing trace with hash -2024938827, now seen corresponding path program 1 times [2022-10-16 14:39:52,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:52,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309908582] [2022-10-16 14:39:52,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:52,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:52,649 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 14:39:52,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:52,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309908582] [2022-10-16 14:39:52,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309908582] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:39:52,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:39:52,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:39:52,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007972651] [2022-10-16 14:39:52,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:39:52,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:39:52,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:52,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:39:52,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:39:52,652 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:52,676 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-10-16 14:39:52,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:39:52,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 14:39:52,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:52,677 INFO L225 Difference]: With dead ends: 26 [2022-10-16 14:39:52,677 INFO L226 Difference]: Without dead ends: 25 [2022-10-16 14:39:52,680 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 14:39:52,681 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:52,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 28 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:39:52,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-10-16 14:39:52,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-10-16 14:39:52,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-10-16 14:39:52,693 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 11 [2022-10-16 14:39:52,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:52,698 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-10-16 14:39:52,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-10-16 14:39:52,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:39:52,699 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:52,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:52,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:39:52,700 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:52,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1651405881, now seen corresponding path program 1 times [2022-10-16 14:39:52,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:52,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863049788] [2022-10-16 14:39:52,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:52,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:52,794 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 14:39:52,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:52,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863049788] [2022-10-16 14:39:52,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863049788] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:39:52,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:39:52,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:39:52,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570664811] [2022-10-16 14:39:52,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:39:52,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:39:52,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:52,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:39:52,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:39:52,801 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:52,834 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-10-16 14:39:52,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:39:52,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:39:52,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:52,835 INFO L225 Difference]: With dead ends: 26 [2022-10-16 14:39:52,835 INFO L226 Difference]: Without dead ends: 25 [2022-10-16 14:39:52,836 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 14:39:52,837 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:52,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 26 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:39:52,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-10-16 14:39:52,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-10-16 14:39:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-10-16 14:39:52,844 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 12 [2022-10-16 14:39:52,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:52,845 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-10-16 14:39:52,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:52,845 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-10-16 14:39:52,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 14:39:52,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:52,846 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:52,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:39:52,847 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:52,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:52,847 INFO L85 PathProgramCache]: Analyzing trace with hash 950296348, now seen corresponding path program 1 times [2022-10-16 14:39:52,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:52,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653794939] [2022-10-16 14:39:52,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:52,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:52,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:39:52,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:52,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653794939] [2022-10-16 14:39:52,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653794939] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:39:52,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:39:52,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:39:52,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019607244] [2022-10-16 14:39:52,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:39:52,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:39:52,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:52,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:39:52,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:39:52,925 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:53,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:53,002 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2022-10-16 14:39:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:39:53,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-10-16 14:39:53,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:53,004 INFO L225 Difference]: With dead ends: 43 [2022-10-16 14:39:53,004 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 14:39:53,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:39:53,006 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:53,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 48 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:39:53,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 14:39:53,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 30. [2022-10-16 14:39:53,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 29 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:53,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-10-16 14:39:53,014 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 14 [2022-10-16 14:39:53,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:53,014 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-10-16 14:39:53,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:53,015 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-10-16 14:39:53,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:39:53,016 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:53,016 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:53,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:39:53,016 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:53,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:53,017 INFO L85 PathProgramCache]: Analyzing trace with hash -514563362, now seen corresponding path program 1 times [2022-10-16 14:39:53,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:53,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896867437] [2022-10-16 14:39:53,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:53,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:39:53,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:53,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896867437] [2022-10-16 14:39:53,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896867437] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:53,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396418671] [2022-10-16 14:39:53,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:53,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:53,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:53,098 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 14:39:53,112 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 14:39:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:53,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:39:53,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:53,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:39:53,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:39:53,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396418671] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:53,329 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:53,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-16 14:39:53,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553110581] [2022-10-16 14:39:53,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:53,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:39:53,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:53,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:39:53,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:39:53,332 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 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 14:39:53,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:53,468 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2022-10-16 14:39:53,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:39:53,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 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) Word has length 16 [2022-10-16 14:39:53,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:53,472 INFO L225 Difference]: With dead ends: 48 [2022-10-16 14:39:53,473 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 14:39:53,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:39:53,478 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 32 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:53,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 22 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:39:53,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 14:39:53,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 25. [2022-10-16 14:39:53,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:53,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-10-16 14:39:53,501 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2022-10-16 14:39:53,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:53,505 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-10-16 14:39:53,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 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 14:39:53,505 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-10-16 14:39:53,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:39:53,506 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:53,506 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:53,544 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 14:39:53,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:53,708 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:53,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:53,709 INFO L85 PathProgramCache]: Analyzing trace with hash -514557404, now seen corresponding path program 1 times [2022-10-16 14:39:53,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:53,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044103750] [2022-10-16 14:39:53,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:53,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:53,826 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 14:39:53,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:53,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044103750] [2022-10-16 14:39:53,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044103750] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:53,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358796112] [2022-10-16 14:39:53,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:53,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:53,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:53,831 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 14:39:53,846 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 14:39:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:53,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:39:53,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:53,951 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 14:39:53,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:54,026 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 14:39:54,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358796112] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:54,027 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:54,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-16 14:39:54,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304529977] [2022-10-16 14:39:54,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:54,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:39:54,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:54,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:39:54,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:39:54,030 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 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 14:39:54,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:54,131 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2022-10-16 14:39:54,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:39:54,131 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 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) Word has length 16 [2022-10-16 14:39:54,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:54,136 INFO L225 Difference]: With dead ends: 56 [2022-10-16 14:39:54,137 INFO L226 Difference]: Without dead ends: 55 [2022-10-16 14:39:54,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:39:54,138 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 27 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:54,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 43 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:39:54,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-16 14:39:54,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2022-10-16 14:39:54,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.173913043478261) internal successors, (54), 46 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:54,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2022-10-16 14:39:54,159 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 16 [2022-10-16 14:39:54,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:54,160 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2022-10-16 14:39:54,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 10 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 14:39:54,160 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2022-10-16 14:39:54,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:39:54,164 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:54,164 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:54,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 14:39:54,365 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,SelfDestructingSolverStorable8 [2022-10-16 14:39:54,366 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:54,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:54,367 INFO L85 PathProgramCache]: Analyzing trace with hash -320348919, now seen corresponding path program 1 times [2022-10-16 14:39:54,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:54,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72536822] [2022-10-16 14:39:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:54,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:39:54,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:54,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72536822] [2022-10-16 14:39:54,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72536822] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:54,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761310020] [2022-10-16 14:39:54,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:54,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:54,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:54,472 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 14:39:54,496 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 14:39:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:54,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:39:54,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:54,569 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:39:54,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:54,651 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:39:54,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761310020] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:54,652 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:54,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 14:39:54,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221815264] [2022-10-16 14:39:54,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:54,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:39:54,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:54,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:39:54,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:39:54,654 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:54,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:54,826 INFO L93 Difference]: Finished difference Result 80 states and 93 transitions. [2022-10-16 14:39:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 14:39:54,827 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 14:39:54,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:54,830 INFO L225 Difference]: With dead ends: 80 [2022-10-16 14:39:54,830 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 14:39:54,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:39:54,833 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 33 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:54,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 50 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:39:54,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 14:39:54,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 61. [2022-10-16 14:39:54,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 60 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:54,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2022-10-16 14:39:54,863 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 20 [2022-10-16 14:39:54,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:54,863 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2022-10-16 14:39:54,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:54,863 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2022-10-16 14:39:54,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 14:39:54,868 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:54,868 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:54,906 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 14:39:55,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:55,070 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:55,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:55,072 INFO L85 PathProgramCache]: Analyzing trace with hash -331593501, now seen corresponding path program 2 times [2022-10-16 14:39:55,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:55,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45295999] [2022-10-16 14:39:55,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:55,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:39:55,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:55,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45295999] [2022-10-16 14:39:55,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45295999] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:55,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346535308] [2022-10-16 14:39:55,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:39:55,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:55,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:55,301 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 14:39:55,321 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 14:39:55,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:39:55,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:39:55,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:39:55,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:39:55,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:55,555 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:39:55,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346535308] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:55,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:55,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-10-16 14:39:55,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957985776] [2022-10-16 14:39:55,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:55,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:39:55,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:55,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:39:55,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:39:55,558 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:55,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:55,759 INFO L93 Difference]: Finished difference Result 124 states and 144 transitions. [2022-10-16 14:39:55,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 14:39:55,759 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 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 14:39:55,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:55,761 INFO L225 Difference]: With dead ends: 124 [2022-10-16 14:39:55,761 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 14:39:55,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:39:55,763 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 56 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:55,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 46 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:39:55,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 14:39:55,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 53. [2022-10-16 14:39:55,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 52 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:55,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2022-10-16 14:39:55,772 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 32 [2022-10-16 14:39:55,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:55,773 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2022-10-16 14:39:55,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:55,773 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-10-16 14:39:55,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 14:39:55,774 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:55,775 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 5, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:55,812 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 14:39:55,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:55,989 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:55,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:55,989 INFO L85 PathProgramCache]: Analyzing trace with hash 73123061, now seen corresponding path program 3 times [2022-10-16 14:39:55,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:55,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153889027] [2022-10-16 14:39:55,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:55,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 4 proven. 58 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 14:39:56,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:56,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153889027] [2022-10-16 14:39:56,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153889027] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:56,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129155821] [2022-10-16 14:39:56,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:39:56,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:56,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:56,243 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 14:39:56,252 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 14:39:56,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 14:39:56,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:39:56,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:39:56,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-10-16 14:39:56,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:39:56,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129155821] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:39:56,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:39:56,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2022-10-16 14:39:56,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637519542] [2022-10-16 14:39:56,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:39:56,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:39:56,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:56,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:39:56,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:39:56,364 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:56,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:56,432 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2022-10-16 14:39:56,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:39:56,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-10-16 14:39:56,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:56,433 INFO L225 Difference]: With dead ends: 68 [2022-10-16 14:39:56,434 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 14:39:56,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:39:56,435 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 12 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:56,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 24 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:39:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 14:39:56,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 53. [2022-10-16 14:39:56,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 52 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:56,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2022-10-16 14:39:56,445 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 42 [2022-10-16 14:39:56,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:56,445 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2022-10-16 14:39:56,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:56,446 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-10-16 14:39:56,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 14:39:56,447 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:56,447 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:56,487 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 14:39:56,661 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,SelfDestructingSolverStorable11 [2022-10-16 14:39:56,661 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:56,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:56,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1664496195, now seen corresponding path program 4 times [2022-10-16 14:39:56,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:56,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555160122] [2022-10-16 14:39:56,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:56,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 82 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:39:56,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:56,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555160122] [2022-10-16 14:39:56,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555160122] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:56,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310123948] [2022-10-16 14:39:56,904 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:39:56,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:56,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:56,905 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 14:39:56,910 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 14:39:56,956 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:39:56,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:39:56,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:39:56,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:57,040 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 82 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:39:57,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:57,228 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 82 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:39:57,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310123948] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:57,229 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:57,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-10-16 14:39:57,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494857196] [2022-10-16 14:39:57,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:57,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:39:57,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:57,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:39:57,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:39:57,232 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:57,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:57,582 INFO L93 Difference]: Finished difference Result 190 states and 221 transitions. [2022-10-16 14:39:57,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-16 14:39:57,582 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 0 states have call successors, (0), 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 44 [2022-10-16 14:39:57,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:57,584 INFO L225 Difference]: With dead ends: 190 [2022-10-16 14:39:57,584 INFO L226 Difference]: Without dead ends: 189 [2022-10-16 14:39:57,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=418, Invalid=1304, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 14:39:57,586 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 65 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:57,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 67 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:39:57,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-16 14:39:57,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 77. [2022-10-16 14:39:57,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 76 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:57,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2022-10-16 14:39:57,602 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 44 [2022-10-16 14:39:57,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:57,602 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2022-10-16 14:39:57,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:57,602 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2022-10-16 14:39:57,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 14:39:57,603 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:57,604 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 6, 5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:57,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:39:57,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:57,819 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:57,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:57,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1485944057, now seen corresponding path program 5 times [2022-10-16 14:39:57,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:57,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222420592] [2022-10-16 14:39:57,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:57,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 6 proven. 100 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 14:39:58,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:58,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222420592] [2022-10-16 14:39:58,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222420592] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:58,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452510503] [2022-10-16 14:39:58,102 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:39:58,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:58,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:58,104 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 14:39:58,124 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 14:39:58,173 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-10-16 14:39:58,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:39:58,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 14:39:58,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:58,261 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 6 proven. 100 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 14:39:58,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:58,463 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 6 proven. 100 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 14:39:58,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452510503] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:58,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:58,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-10-16 14:39:58,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247612140] [2022-10-16 14:39:58,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:58,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:39:58,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:58,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:39:58,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:39:58,466 INFO L87 Difference]: Start difference. First operand 77 states and 88 transitions. Second operand has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:58,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:58,765 INFO L93 Difference]: Finished difference Result 352 states and 412 transitions. [2022-10-16 14:39:58,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 14:39:58,765 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 0 states have call successors, (0), 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 52 [2022-10-16 14:39:58,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:58,768 INFO L225 Difference]: With dead ends: 352 [2022-10-16 14:39:58,768 INFO L226 Difference]: Without dead ends: 351 [2022-10-16 14:39:58,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1218, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 14:39:58,770 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 61 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:58,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 72 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:39:58,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-10-16 14:39:58,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 225. [2022-10-16 14:39:58,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.1607142857142858) internal successors, (260), 224 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:58,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 260 transitions. [2022-10-16 14:39:58,816 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 260 transitions. Word has length 52 [2022-10-16 14:39:58,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:58,818 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 260 transitions. [2022-10-16 14:39:58,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:39:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 260 transitions. [2022-10-16 14:39:58,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 14:39:58,820 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:58,820 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:58,859 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 14:39:59,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:59,035 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:39:59,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:59,036 INFO L85 PathProgramCache]: Analyzing trace with hash -169415785, now seen corresponding path program 6 times [2022-10-16 14:39:59,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:59,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836465472] [2022-10-16 14:39:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:59,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:59,372 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 2 proven. 160 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:39:59,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:59,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836465472] [2022-10-16 14:39:59,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836465472] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:59,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605530226] [2022-10-16 14:39:59,376 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:39:59,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:59,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:59,377 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 14:39:59,387 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 14:39:59,454 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-10-16 14:39:59,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:39:59,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 14:39:59,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:59,552 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 2 proven. 160 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:39:59,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 2 proven. 160 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:39:59,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605530226] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:59,848 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:59,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2022-10-16 14:39:59,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504642730] [2022-10-16 14:39:59,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:59,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 14:39:59,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:59,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 14:39:59,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=748, Unknown=0, NotChecked=0, Total=992 [2022-10-16 14:39:59,851 INFO L87 Difference]: Start difference. First operand 225 states and 260 transitions. Second operand has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:00,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:00,404 INFO L93 Difference]: Finished difference Result 634 states and 730 transitions. [2022-10-16 14:40:00,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-10-16 14:40:00,405 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 14:40:00,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:00,409 INFO L225 Difference]: With dead ends: 634 [2022-10-16 14:40:00,409 INFO L226 Difference]: Without dead ends: 633 [2022-10-16 14:40:00,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=764, Invalid=2428, Unknown=0, NotChecked=0, Total=3192 [2022-10-16 14:40:00,412 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 118 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:00,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 83 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:40:00,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-10-16 14:40:00,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 351. [2022-10-16 14:40:00,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.1685714285714286) internal successors, (409), 350 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:00,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 409 transitions. [2022-10-16 14:40:00,467 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 409 transitions. Word has length 56 [2022-10-16 14:40:00,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:00,467 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 409 transitions. [2022-10-16 14:40:00,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.096774193548387) internal successors, (96), 32 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:00,468 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 409 transitions. [2022-10-16 14:40:00,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 14:40:00,469 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:00,470 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:00,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 14:40:00,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 14:40:00,686 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:40:00,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:00,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1781146225, now seen corresponding path program 7 times [2022-10-16 14:40:00,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:00,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397508069] [2022-10-16 14:40:00,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:00,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 2 proven. 262 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:40:01,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:01,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397508069] [2022-10-16 14:40:01,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397508069] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:01,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787757917] [2022-10-16 14:40:01,108 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:40:01,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:01,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:01,110 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 14:40:01,111 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 14:40:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:01,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:40:01,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 2 proven. 262 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:40:01,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:01,688 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 2 proven. 262 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:40:01,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787757917] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:01,688 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:01,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 39 [2022-10-16 14:40:01,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195192625] [2022-10-16 14:40:01,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:01,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 14:40:01,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:01,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 14:40:01,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=1176, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 14:40:01,691 INFO L87 Difference]: Start difference. First operand 351 states and 409 transitions. Second operand has 40 states, 39 states have (on average 3.076923076923077) internal successors, (120), 40 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:02,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:02,411 INFO L93 Difference]: Finished difference Result 800 states and 923 transitions. [2022-10-16 14:40:02,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 14:40:02,411 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.076923076923077) internal successors, (120), 40 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-10-16 14:40:02,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:02,416 INFO L225 Difference]: With dead ends: 800 [2022-10-16 14:40:02,416 INFO L226 Difference]: Without dead ends: 799 [2022-10-16 14:40:02,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1214, Invalid=3898, Unknown=0, NotChecked=0, Total=5112 [2022-10-16 14:40:02,420 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 185 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:02,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 94 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:40:02,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2022-10-16 14:40:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 349. [2022-10-16 14:40:02,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.1666666666666667) internal successors, (406), 348 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:02,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 406 transitions. [2022-10-16 14:40:02,466 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 406 transitions. Word has length 68 [2022-10-16 14:40:02,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:02,466 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 406 transitions. [2022-10-16 14:40:02,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.076923076923077) internal successors, (120), 40 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:02,467 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 406 transitions. [2022-10-16 14:40:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 14:40:02,468 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:02,468 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:02,505 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 14:40:02,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 14:40:02,683 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:40:02,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:02,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1213807190, now seen corresponding path program 8 times [2022-10-16 14:40:02,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:02,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684501732] [2022-10-16 14:40:02,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:02,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 4 proven. 280 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 14:40:03,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:03,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684501732] [2022-10-16 14:40:03,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684501732] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:03,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274656631] [2022-10-16 14:40:03,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:40:03,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:03,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:03,143 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 14:40:03,149 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 14:40:03,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:40:03,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:40:03,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:40:03,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:03,340 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 4 proven. 280 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 14:40:03,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:03,786 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 4 proven. 280 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 14:40:03,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274656631] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:03,786 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:03,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 41 [2022-10-16 14:40:03,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174495622] [2022-10-16 14:40:03,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:03,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 14:40:03,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:03,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 14:40:03,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 14:40:03,789 INFO L87 Difference]: Start difference. First operand 349 states and 406 transitions. Second operand has 42 states, 41 states have (on average 3.073170731707317) internal successors, (126), 42 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:04,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:04,473 INFO L93 Difference]: Finished difference Result 1154 states and 1334 transitions. [2022-10-16 14:40:04,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-10-16 14:40:04,474 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.073170731707317) internal successors, (126), 42 states have internal predecessors, (126), 0 states have call successors, (0), 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 72 [2022-10-16 14:40:04,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:04,481 INFO L225 Difference]: With dead ends: 1154 [2022-10-16 14:40:04,482 INFO L226 Difference]: Without dead ends: 1153 [2022-10-16 14:40:04,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 126 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1192, Invalid=3920, Unknown=0, NotChecked=0, Total=5112 [2022-10-16 14:40:04,488 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 161 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:04,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 107 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:40:04,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2022-10-16 14:40:04,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 661. [2022-10-16 14:40:04,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 660 states have (on average 1.1681818181818182) internal successors, (771), 660 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:04,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 771 transitions. [2022-10-16 14:40:04,575 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 771 transitions. Word has length 72 [2022-10-16 14:40:04,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:04,575 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 771 transitions. [2022-10-16 14:40:04,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.073170731707317) internal successors, (126), 42 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:04,575 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 771 transitions. [2022-10-16 14:40:04,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 14:40:04,577 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:04,577 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:04,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:40:04,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 14:40:04,792 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:40:04,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1402791958, now seen corresponding path program 9 times [2022-10-16 14:40:04,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:04,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190368027] [2022-10-16 14:40:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:04,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:05,221 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 4 proven. 276 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 14:40:05,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:05,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190368027] [2022-10-16 14:40:05,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190368027] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:05,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487949295] [2022-10-16 14:40:05,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:40:05,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:05,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:05,224 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:40:05,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:40:05,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-10-16 14:40:05,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:40:05,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:40:05,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 4 proven. 276 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 14:40:05,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:05,794 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 4 proven. 276 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 14:40:05,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487949295] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:05,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:05,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 37 [2022-10-16 14:40:05,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515442743] [2022-10-16 14:40:05,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:05,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 14:40:05,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:05,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 14:40:05,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=1087, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 14:40:05,798 INFO L87 Difference]: Start difference. First operand 661 states and 771 transitions. Second operand has 38 states, 37 states have (on average 3.081081081081081) internal successors, (114), 38 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:06,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:06,661 INFO L93 Difference]: Finished difference Result 2594 states and 2999 transitions. [2022-10-16 14:40:06,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-10-16 14:40:06,661 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 3.081081081081081) internal successors, (114), 38 states have internal predecessors, (114), 0 states have call successors, (0), 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 72 [2022-10-16 14:40:06,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:06,673 INFO L225 Difference]: With dead ends: 2594 [2022-10-16 14:40:06,673 INFO L226 Difference]: Without dead ends: 2593 [2022-10-16 14:40:06,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1143 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1075, Invalid=3755, Unknown=0, NotChecked=0, Total=4830 [2022-10-16 14:40:06,678 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 125 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:06,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 109 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:40:06,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2593 states. [2022-10-16 14:40:06,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 1445. [2022-10-16 14:40:06,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.1738227146814404) internal successors, (1695), 1444 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:06,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1695 transitions. [2022-10-16 14:40:06,862 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1695 transitions. Word has length 72 [2022-10-16 14:40:06,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:06,862 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 1695 transitions. [2022-10-16 14:40:06,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 3.081081081081081) internal successors, (114), 38 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:06,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1695 transitions. [2022-10-16 14:40:06,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 14:40:06,866 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:06,866 INFO L195 NwaCegarLoop]: trace histogram [13, 10, 10, 9, 9, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:06,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 14:40:07,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:40:07,081 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:40:07,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:07,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1844361861, now seen corresponding path program 10 times [2022-10-16 14:40:07,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:07,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237077339] [2022-10-16 14:40:07,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:07,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:07,549 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 6 proven. 300 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 14:40:07,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:07,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237077339] [2022-10-16 14:40:07,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237077339] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:07,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214722612] [2022-10-16 14:40:07,550 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:40:07,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:07,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:07,552 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:40:07,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:40:07,609 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:40:07,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:40:07,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 14:40:07,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:07,707 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 6 proven. 300 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 14:40:07,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:08,135 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 6 proven. 300 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 14:40:08,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214722612] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:08,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:08,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 39 [2022-10-16 14:40:08,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633347583] [2022-10-16 14:40:08,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:08,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 14:40:08,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:08,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 14:40:08,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=1228, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 14:40:08,141 INFO L87 Difference]: Start difference. First operand 1445 states and 1695 transitions. Second operand has 40 states, 39 states have (on average 3.076923076923077) internal successors, (120), 40 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:09,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:09,224 INFO L93 Difference]: Finished difference Result 4768 states and 5525 transitions. [2022-10-16 14:40:09,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 14:40:09,225 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.076923076923077) internal successors, (120), 40 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-10-16 14:40:09,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:09,247 INFO L225 Difference]: With dead ends: 4768 [2022-10-16 14:40:09,247 INFO L226 Difference]: Without dead ends: 4767 [2022-10-16 14:40:09,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 138 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1078, Invalid=3892, Unknown=0, NotChecked=0, Total=4970 [2022-10-16 14:40:09,253 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 152 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:09,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 89 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:40:09,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2022-10-16 14:40:09,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 2307. [2022-10-16 14:40:09,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 2306 states have (on average 1.1743278404163053) internal successors, (2708), 2306 states have internal predecessors, (2708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:09,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 2708 transitions. [2022-10-16 14:40:09,541 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 2708 transitions. Word has length 76 [2022-10-16 14:40:09,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:09,541 INFO L495 AbstractCegarLoop]: Abstraction has 2307 states and 2708 transitions. [2022-10-16 14:40:09,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.076923076923077) internal successors, (120), 40 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:09,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 2708 transitions. [2022-10-16 14:40:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-16 14:40:09,554 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:09,555 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 12, 12, 12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:09,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 14:40:09,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:09,772 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:40:09,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:09,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1817993049, now seen corresponding path program 11 times [2022-10-16 14:40:09,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:09,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997130845] [2022-10-16 14:40:09,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:09,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 8 proven. 526 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-10-16 14:40:10,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:10,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997130845] [2022-10-16 14:40:10,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997130845] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:10,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514778573] [2022-10-16 14:40:10,503 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:40:10,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:10,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:10,504 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:40:10,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 14:40:10,609 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2022-10-16 14:40:10,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:40:10,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 14:40:10,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:10,745 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 8 proven. 526 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-10-16 14:40:10,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 8 proven. 526 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-10-16 14:40:11,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514778573] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:11,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:11,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2022-10-16 14:40:11,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525099047] [2022-10-16 14:40:11,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:11,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-10-16 14:40:11,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:11,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-10-16 14:40:11,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=1647, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 14:40:11,297 INFO L87 Difference]: Start difference. First operand 2307 states and 2708 transitions. Second operand has 46 states, 45 states have (on average 3.066666666666667) internal successors, (138), 46 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 14:40:12,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:12,617 INFO L93 Difference]: Finished difference Result 6456 states and 7539 transitions. [2022-10-16 14:40:12,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 14:40:12,617 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.066666666666667) internal successors, (138), 46 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) Word has length 98 [2022-10-16 14:40:12,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:12,642 INFO L225 Difference]: With dead ends: 6456 [2022-10-16 14:40:12,643 INFO L226 Difference]: Without dead ends: 6455 [2022-10-16 14:40:12,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1409 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1298, Invalid=4708, Unknown=0, NotChecked=0, Total=6006 [2022-10-16 14:40:12,650 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 144 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:12,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 116 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:40:12,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6455 states. [2022-10-16 14:40:12,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6455 to 871. [2022-10-16 14:40:12,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 870 states have (on average 1.1655172413793105) internal successors, (1014), 870 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:12,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1014 transitions. [2022-10-16 14:40:12,890 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1014 transitions. Word has length 98 [2022-10-16 14:40:12,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:12,890 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1014 transitions. [2022-10-16 14:40:12,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.066666666666667) internal successors, (138), 46 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 14:40:12,891 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1014 transitions. [2022-10-16 14:40:12,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-16 14:40:12,893 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:12,894 INFO L195 NwaCegarLoop]: trace histogram [17, 14, 14, 13, 13, 13, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:12,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 14:40:13,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-10-16 14:40:13,109 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:40:13,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:13,109 INFO L85 PathProgramCache]: Analyzing trace with hash 189018223, now seen corresponding path program 12 times [2022-10-16 14:40:13,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:13,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100158635] [2022-10-16 14:40:13,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:13,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 6 proven. 584 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 14:40:13,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:13,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100158635] [2022-10-16 14:40:13,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100158635] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:13,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323946580] [2022-10-16 14:40:13,818 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:40:13,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:13,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:13,819 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:40:13,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:40:13,910 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-10-16 14:40:13,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:40:13,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 14:40:13,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:14,065 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 6 proven. 584 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 14:40:14,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:14,806 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 6 proven. 584 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 14:40:14,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323946580] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:14,806 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:14,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 51 [2022-10-16 14:40:14,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74944949] [2022-10-16 14:40:14,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:14,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 14:40:14,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:14,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 14:40:14,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=578, Invalid=2074, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 14:40:14,810 INFO L87 Difference]: Start difference. First operand 871 states and 1014 transitions. Second operand has 52 states, 51 states have (on average 3.0588235294117645) internal successors, (156), 52 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:16,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:16,630 INFO L93 Difference]: Finished difference Result 3788 states and 4377 transitions. [2022-10-16 14:40:16,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-10-16 14:40:16,631 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 3.0588235294117645) internal successors, (156), 52 states have internal predecessors, (156), 0 states have call successors, (0), 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 100 [2022-10-16 14:40:16,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:16,642 INFO L225 Difference]: With dead ends: 3788 [2022-10-16 14:40:16,642 INFO L226 Difference]: Without dead ends: 3787 [2022-10-16 14:40:16,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2290 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1972, Invalid=7148, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 14:40:16,651 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 192 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:16,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 116 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:40:16,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3787 states. [2022-10-16 14:40:17,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3787 to 2277. [2022-10-16 14:40:17,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 2276 states have (on average 1.1704745166959578) internal successors, (2664), 2276 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:17,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 2664 transitions. [2022-10-16 14:40:17,202 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 2664 transitions. Word has length 100 [2022-10-16 14:40:17,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:17,202 INFO L495 AbstractCegarLoop]: Abstraction has 2277 states and 2664 transitions. [2022-10-16 14:40:17,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 3.0588235294117645) internal successors, (156), 52 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:17,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 2664 transitions. [2022-10-16 14:40:17,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-16 14:40:17,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:17,209 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 14, 14, 14, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:17,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 14:40:17,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:17,423 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:40:17,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:17,424 INFO L85 PathProgramCache]: Analyzing trace with hash 166893953, now seen corresponding path program 13 times [2022-10-16 14:40:17,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:17,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161724431] [2022-10-16 14:40:17,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:17,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 8 proven. 704 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 14:40:18,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:18,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161724431] [2022-10-16 14:40:18,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161724431] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:18,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055618202] [2022-10-16 14:40:18,236 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:40:18,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:18,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:18,238 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:40:18,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:40:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:18,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 39 conjunts are in the unsatisfiable core [2022-10-16 14:40:18,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 8 proven. 704 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 14:40:18,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 8 proven. 704 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 14:40:19,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055618202] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:19,301 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:19,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2022-10-16 14:40:19,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695731811] [2022-10-16 14:40:19,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:19,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-10-16 14:40:19,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:19,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-10-16 14:40:19,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=2267, Unknown=0, NotChecked=0, Total=2862 [2022-10-16 14:40:19,306 INFO L87 Difference]: Start difference. First operand 2277 states and 2664 transitions. Second operand has 54 states, 53 states have (on average 3.056603773584906) internal successors, (162), 54 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:22,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:22,121 INFO L93 Difference]: Finished difference Result 8024 states and 9288 transitions. [2022-10-16 14:40:22,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-10-16 14:40:22,123 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 3.056603773584906) internal successors, (162), 54 states have internal predecessors, (162), 0 states have call successors, (0), 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 110 [2022-10-16 14:40:22,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:22,155 INFO L225 Difference]: With dead ends: 8024 [2022-10-16 14:40:22,155 INFO L226 Difference]: Without dead ends: 8023 [2022-10-16 14:40:22,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2248 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1970, Invalid=7342, Unknown=0, NotChecked=0, Total=9312 [2022-10-16 14:40:22,162 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 338 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:22,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 92 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:40:22,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8023 states. [2022-10-16 14:40:23,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8023 to 2539. [2022-10-16 14:40:23,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2538 states have (on average 1.169424743892829) internal successors, (2968), 2538 states have internal predecessors, (2968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:23,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 2968 transitions. [2022-10-16 14:40:23,083 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 2968 transitions. Word has length 110 [2022-10-16 14:40:23,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:23,083 INFO L495 AbstractCegarLoop]: Abstraction has 2539 states and 2968 transitions. [2022-10-16 14:40:23,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 3.056603773584906) internal successors, (162), 54 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:23,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 2968 transitions. [2022-10-16 14:40:23,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-16 14:40:23,091 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:23,091 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 16, 16, 16, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:23,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 14:40:23,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:23,305 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:40:23,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:23,306 INFO L85 PathProgramCache]: Analyzing trace with hash 887607963, now seen corresponding path program 14 times [2022-10-16 14:40:23,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:23,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054631575] [2022-10-16 14:40:23,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:23,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:24,292 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 8 proven. 902 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 14:40:24,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:24,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054631575] [2022-10-16 14:40:24,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054631575] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:24,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741821467] [2022-10-16 14:40:24,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:40:24,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:24,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:24,295 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:40:24,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 14:40:24,368 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:40:24,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:40:24,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 14:40:24,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:24,535 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 8 proven. 902 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 14:40:24,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:25,497 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 8 proven. 902 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 14:40:25,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741821467] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:25,497 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:25,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 61 [2022-10-16 14:40:25,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951435154] [2022-10-16 14:40:25,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:25,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-10-16 14:40:25,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:25,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-10-16 14:40:25,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=2983, Unknown=0, NotChecked=0, Total=3782 [2022-10-16 14:40:25,501 INFO L87 Difference]: Start difference. First operand 2539 states and 2968 transitions. Second operand has 62 states, 61 states have (on average 3.0491803278688523) internal successors, (186), 62 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:29,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:29,401 INFO L93 Difference]: Finished difference Result 10222 states and 11825 transitions. [2022-10-16 14:40:29,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-10-16 14:40:29,402 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 3.0491803278688523) internal successors, (186), 62 states have internal predecessors, (186), 0 states have call successors, (0), 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 122 [2022-10-16 14:40:29,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:29,420 INFO L225 Difference]: With dead ends: 10222 [2022-10-16 14:40:29,421 INFO L226 Difference]: Without dead ends: 10221 [2022-10-16 14:40:29,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3081 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2652, Invalid=9780, Unknown=0, NotChecked=0, Total=12432 [2022-10-16 14:40:29,429 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 277 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:29,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 127 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:40:29,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10221 states. [2022-10-16 14:40:30,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10221 to 4117. [2022-10-16 14:40:30,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4117 states, 4116 states have (on average 1.1720116618075802) internal successors, (4824), 4116 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:30,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4117 states to 4117 states and 4824 transitions. [2022-10-16 14:40:30,820 INFO L78 Accepts]: Start accepts. Automaton has 4117 states and 4824 transitions. Word has length 122 [2022-10-16 14:40:30,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:30,820 INFO L495 AbstractCegarLoop]: Abstraction has 4117 states and 4824 transitions. [2022-10-16 14:40:30,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 3.0491803278688523) internal successors, (186), 62 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand 4117 states and 4824 transitions. [2022-10-16 14:40:30,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 14:40:30,830 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:30,831 INFO L195 NwaCegarLoop]: trace histogram [23, 16, 16, 15, 15, 15, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:30,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 14:40:31,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 14:40:31,047 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:40:31,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:31,047 INFO L85 PathProgramCache]: Analyzing trace with hash 539052893, now seen corresponding path program 15 times [2022-10-16 14:40:31,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:31,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77223801] [2022-10-16 14:40:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:31,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:32,041 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 14 proven. 926 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-10-16 14:40:32,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:32,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77223801] [2022-10-16 14:40:32,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77223801] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:32,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561396887] [2022-10-16 14:40:32,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:40:32,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:32,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:32,044 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:40:32,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 14:40:32,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2022-10-16 14:40:32,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:40:32,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-16 14:40:32,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:32,421 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 14 proven. 926 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-10-16 14:40:32,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 14 proven. 926 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-10-16 14:40:33,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561396887] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:33,181 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:33,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 55 [2022-10-16 14:40:33,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170797055] [2022-10-16 14:40:33,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:33,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-10-16 14:40:33,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:33,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-10-16 14:40:33,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=580, Invalid=2500, Unknown=0, NotChecked=0, Total=3080 [2022-10-16 14:40:33,184 INFO L87 Difference]: Start difference. First operand 4117 states and 4824 transitions. Second operand has 56 states, 55 states have (on average 3.0545454545454547) internal successors, (168), 56 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:38,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:38,906 INFO L93 Difference]: Finished difference Result 16504 states and 19209 transitions. [2022-10-16 14:40:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-10-16 14:40:38,907 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 3.0545454545454547) internal successors, (168), 56 states have internal predecessors, (168), 0 states have call successors, (0), 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 128 [2022-10-16 14:40:38,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:38,941 INFO L225 Difference]: With dead ends: 16504 [2022-10-16 14:40:38,941 INFO L226 Difference]: Without dead ends: 16503 [2022-10-16 14:40:38,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 246 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2370 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1824, Invalid=7296, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 14:40:38,955 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 226 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:38,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 141 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:40:38,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16503 states. [2022-10-16 14:40:42,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16503 to 10177. [2022-10-16 14:40:42,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10177 states, 10176 states have (on average 1.1696147798742138) internal successors, (11902), 10176 states have internal predecessors, (11902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:42,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10177 states to 10177 states and 11902 transitions. [2022-10-16 14:40:42,521 INFO L78 Accepts]: Start accepts. Automaton has 10177 states and 11902 transitions. Word has length 128 [2022-10-16 14:40:42,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:42,522 INFO L495 AbstractCegarLoop]: Abstraction has 10177 states and 11902 transitions. [2022-10-16 14:40:42,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 3.0545454545454547) internal successors, (168), 56 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:42,522 INFO L276 IsEmpty]: Start isEmpty. Operand 10177 states and 11902 transitions. [2022-10-16 14:40:42,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-10-16 14:40:42,549 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:42,550 INFO L195 NwaCegarLoop]: trace histogram [24, 21, 21, 20, 20, 20, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:42,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 14:40:42,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:42,765 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:40:42,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:42,766 INFO L85 PathProgramCache]: Analyzing trace with hash 380535466, now seen corresponding path program 16 times [2022-10-16 14:40:42,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:42,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541209513] [2022-10-16 14:40:42,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:42,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:44,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 6 proven. 1326 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 14:40:44,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:44,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541209513] [2022-10-16 14:40:44,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541209513] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:44,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112218051] [2022-10-16 14:40:44,155 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:40:44,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:44,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:44,157 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:40:44,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 14:40:44,249 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:40:44,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:40:44,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 14:40:44,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 6 proven. 1326 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 14:40:44,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:45,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 6 proven. 1326 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 14:40:45,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112218051] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:45,986 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:45,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 79 [2022-10-16 14:40:45,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212492882] [2022-10-16 14:40:45,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:45,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-10-16 14:40:45,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:45,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-10-16 14:40:45,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1432, Invalid=4888, Unknown=0, NotChecked=0, Total=6320 [2022-10-16 14:40:45,990 INFO L87 Difference]: Start difference. First operand 10177 states and 11902 transitions. Second operand has 80 states, 79 states have (on average 3.037974683544304) internal successors, (240), 80 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:40:58,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:58,649 INFO L93 Difference]: Finished difference Result 37086 states and 42878 transitions. [2022-10-16 14:40:58,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-10-16 14:40:58,650 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 3.037974683544304) internal successors, (240), 80 states have internal predecessors, (240), 0 states have call successors, (0), 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 142 [2022-10-16 14:40:58,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:58,724 INFO L225 Difference]: With dead ends: 37086 [2022-10-16 14:40:58,724 INFO L226 Difference]: Without dead ends: 37085 [2022-10-16 14:40:58,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5344 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=4714, Invalid=16456, Unknown=0, NotChecked=0, Total=21170 [2022-10-16 14:40:58,741 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 375 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:58,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 148 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:40:58,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37085 states. [2022-10-16 14:41:06,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37085 to 19691. [2022-10-16 14:41:06,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19691 states, 19690 states have (on average 1.1729304215337735) internal successors, (23095), 19690 states have internal predecessors, (23095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:06,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19691 states to 19691 states and 23095 transitions. [2022-10-16 14:41:06,336 INFO L78 Accepts]: Start accepts. Automaton has 19691 states and 23095 transitions. Word has length 142 [2022-10-16 14:41:06,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:06,336 INFO L495 AbstractCegarLoop]: Abstraction has 19691 states and 23095 transitions. [2022-10-16 14:41:06,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 3.037974683544304) internal successors, (240), 80 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:06,337 INFO L276 IsEmpty]: Start isEmpty. Operand 19691 states and 23095 transitions. [2022-10-16 14:41:06,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 14:41:06,379 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:06,379 INFO L195 NwaCegarLoop]: trace histogram [25, 22, 22, 21, 21, 21, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:41:06,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-10-16 14:41:06,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:06,580 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:06,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:06,581 INFO L85 PathProgramCache]: Analyzing trace with hash 396164567, now seen corresponding path program 17 times [2022-10-16 14:41:06,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:06,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231051039] [2022-10-16 14:41:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:06,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 6 proven. 1462 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 14:41:08,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:08,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231051039] [2022-10-16 14:41:08,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231051039] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:41:08,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943764214] [2022-10-16 14:41:08,166 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:41:08,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:08,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:08,167 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:41:08,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 14:41:08,286 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2022-10-16 14:41:08,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:41:08,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 14:41:08,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:41:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 6 proven. 1462 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 14:41:08,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:41:10,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 6 proven. 1462 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 14:41:10,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943764214] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:41:10,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:41:10,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 87 [2022-10-16 14:41:10,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408586420] [2022-10-16 14:41:10,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:41:10,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-10-16 14:41:10,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:10,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-10-16 14:41:10,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1748, Invalid=5908, Unknown=0, NotChecked=0, Total=7656 [2022-10-16 14:41:10,390 INFO L87 Difference]: Start difference. First operand 19691 states and 23095 transitions. Second operand has 88 states, 87 states have (on average 3.0344827586206895) internal successors, (264), 88 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:27,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:41:27,059 INFO L93 Difference]: Finished difference Result 51884 states and 60135 transitions. [2022-10-16 14:41:27,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-10-16 14:41:27,060 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 3.0344827586206895) internal successors, (264), 88 states have internal predecessors, (264), 0 states have call successors, (0), 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 148 [2022-10-16 14:41:27,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:41:27,161 INFO L225 Difference]: With dead ends: 51884 [2022-10-16 14:41:27,162 INFO L226 Difference]: Without dead ends: 51883 [2022-10-16 14:41:27,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 258 SyntacticMatches, 1 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6121 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5518, Invalid=18662, Unknown=0, NotChecked=0, Total=24180 [2022-10-16 14:41:27,180 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 475 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:41:27,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 172 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:41:27,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51883 states. [2022-10-16 14:41:39,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51883 to 36989. [2022-10-16 14:41:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36989 states, 36988 states have (on average 1.1748404888071806) internal successors, (43455), 36988 states have internal predecessors, (43455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:39,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36989 states to 36989 states and 43455 transitions. [2022-10-16 14:41:39,844 INFO L78 Accepts]: Start accepts. Automaton has 36989 states and 43455 transitions. Word has length 148 [2022-10-16 14:41:39,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:41:39,845 INFO L495 AbstractCegarLoop]: Abstraction has 36989 states and 43455 transitions. [2022-10-16 14:41:39,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 3.0344827586206895) internal successors, (264), 88 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:41:39,846 INFO L276 IsEmpty]: Start isEmpty. Operand 36989 states and 43455 transitions. [2022-10-16 14:41:39,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 14:41:39,928 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:41:39,928 INFO L195 NwaCegarLoop]: trace histogram [25, 22, 22, 21, 21, 21, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:41:39,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 14:41:40,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:40,142 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:41:40,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:41:40,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1204448809, now seen corresponding path program 18 times [2022-10-16 14:41:40,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:41:40,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502003276] [2022-10-16 14:41:40,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:41:40,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:41:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:41:41,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 6 proven. 1464 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 14:41:41,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:41:41,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502003276] [2022-10-16 14:41:41,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502003276] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:41:41,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648282781] [2022-10-16 14:41:41,631 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:41:41,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:41:41,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:41:41,632 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:41:41,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 14:41:41,761 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-10-16 14:41:41,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:41:41,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 14:41:41,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:41:41,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 6 proven. 1464 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 14:41:41,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:41:43,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 6 proven. 1464 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 14:41:43,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648282781] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:41:43,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:41:43,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 87 [2022-10-16 14:41:43,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262347451] [2022-10-16 14:41:43,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:41:43,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-10-16 14:41:43,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:41:43,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-10-16 14:41:43,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1748, Invalid=5908, Unknown=0, NotChecked=0, Total=7656 [2022-10-16 14:41:43,870 INFO L87 Difference]: Start difference. First operand 36989 states and 43455 transitions. Second operand has 88 states, 87 states have (on average 3.0344827586206895) internal successors, (264), 88 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:23,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:42:23,167 INFO L93 Difference]: Finished difference Result 118718 states and 137652 transitions. [2022-10-16 14:42:23,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-10-16 14:42:23,168 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 3.0344827586206895) internal successors, (264), 88 states have internal predecessors, (264), 0 states have call successors, (0), 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 148 [2022-10-16 14:42:23,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:42:23,345 INFO L225 Difference]: With dead ends: 118718 [2022-10-16 14:42:23,345 INFO L226 Difference]: Without dead ends: 118717 [2022-10-16 14:42:23,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 258 SyntacticMatches, 1 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7690 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=6054, Invalid=22002, Unknown=0, NotChecked=0, Total=28056 [2022-10-16 14:42:23,381 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 416 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:42:23,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 130 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:42:23,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118717 states. [2022-10-16 14:42:48,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118717 to 74375. [2022-10-16 14:42:48,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74375 states, 74374 states have (on average 1.1758544652701213) internal successors, (87453), 74374 states have internal predecessors, (87453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:49,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74375 states to 74375 states and 87453 transitions. [2022-10-16 14:42:49,152 INFO L78 Accepts]: Start accepts. Automaton has 74375 states and 87453 transitions. Word has length 148 [2022-10-16 14:42:49,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:42:49,153 INFO L495 AbstractCegarLoop]: Abstraction has 74375 states and 87453 transitions. [2022-10-16 14:42:49,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 3.0344827586206895) internal successors, (264), 88 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:42:49,153 INFO L276 IsEmpty]: Start isEmpty. Operand 74375 states and 87453 transitions. [2022-10-16 14:42:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-10-16 14:42:49,255 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:42:49,255 INFO L195 NwaCegarLoop]: trace histogram [26, 21, 21, 20, 20, 20, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:42:49,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 14:42:49,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 14:42:49,471 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:42:49,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:42:49,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1439526796, now seen corresponding path program 19 times [2022-10-16 14:42:49,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:42:49,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281095294] [2022-10-16 14:42:49,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:42:49,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:42:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:51,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 10 proven. 1418 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-16 14:42:51,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:42:51,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281095294] [2022-10-16 14:42:51,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281095294] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:42:51,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128329840] [2022-10-16 14:42:51,210 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:42:51,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:42:51,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:42:51,211 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:42:51,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 14:42:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:42:51,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 53 conjunts are in the unsatisfiable core [2022-10-16 14:42:51,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:42:51,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 10 proven. 1418 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-16 14:42:51,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:42:52,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 10 proven. 1418 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-16 14:42:52,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128329840] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:42:52,894 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:42:52,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 75 [2022-10-16 14:42:52,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701094028] [2022-10-16 14:42:52,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:42:52,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-10-16 14:42:52,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:42:52,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-10-16 14:42:52,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1186, Invalid=4514, Unknown=0, NotChecked=0, Total=5700 [2022-10-16 14:42:52,897 INFO L87 Difference]: Start difference. First operand 74375 states and 87453 transitions. Second operand has 76 states, 75 states have (on average 3.04) internal successors, (228), 76 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:43:52,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:43:52,492 INFO L93 Difference]: Finished difference Result 199864 states and 232509 transitions. [2022-10-16 14:43:52,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-10-16 14:43:52,494 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 75 states have (on average 3.04) internal successors, (228), 76 states have internal predecessors, (228), 0 states have call successors, (0), 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 150 [2022-10-16 14:43:52,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:43:52,820 INFO L225 Difference]: With dead ends: 199864 [2022-10-16 14:43:52,820 INFO L226 Difference]: Without dead ends: 199863 [2022-10-16 14:43:53,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 276 SyntacticMatches, 1 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4908 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4010, Invalid=14896, Unknown=0, NotChecked=0, Total=18906 [2022-10-16 14:43:53,115 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 324 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:43:53,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 129 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:43:53,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199863 states.