/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-lit/gr2006.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:30:00,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:30:00,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:30:00,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:30:00,632 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 14:30:00,686 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:30:00,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:30:00,687 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:30:00,687 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:30:00,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:30:00,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:30:00,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:30:00,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:30:00,692 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:30:00,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:30:00,693 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:30:00,693 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:30:00,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:30:00,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:30:00,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:30:00,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:30:00,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:30:00,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:30:00,695 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:30:00,695 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:30:00,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:30:00,695 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:30:00,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:30:00,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:30:00,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:30:00,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:30:00,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:30:00,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:30:00,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:30:00,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:30:00,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:30:00,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:30:00,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:30:00,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:30:01,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:30:01,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:30:01,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:30:01,172 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:30:01,172 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:30:01,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gr2006.i [2022-10-16 14:30:01,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b3539ecf/20bb04e275474a26a663f0be630952f7/FLAG394552d78 [2022-10-16 14:30:01,890 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:30:01,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gr2006.i [2022-10-16 14:30:01,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b3539ecf/20bb04e275474a26a663f0be630952f7/FLAG394552d78 [2022-10-16 14:30:02,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b3539ecf/20bb04e275474a26a663f0be630952f7 [2022-10-16 14:30:02,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:30:02,253 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:30:02,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:30:02,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:30:02,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:30:02,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7e6512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02, skipping insertion in model container [2022-10-16 14:30:02,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:30:02,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:30:02,442 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gr2006.i[895,908] [2022-10-16 14:30:02,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:30:02,468 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:30:02,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gr2006.i[895,908] [2022-10-16 14:30:02,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:30:02,516 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:30:02,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02 WrapperNode [2022-10-16 14:30:02,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:30:02,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:30:02,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:30:02,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:30:02,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,563 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-10-16 14:30:02,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:30:02,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:30:02,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:30:02,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:30:02,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,599 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:30:02,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:30:02,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:30:02,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:30:02,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (1/1) ... [2022-10-16 14:30:02,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:30:02,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:02,668 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 14:30:02,690 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 14:30:02,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:30:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:30:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:30:02,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:30:02,844 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:30:02,847 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:30:02,987 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:30:02,995 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:30:02,995 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 14:30:02,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:02 BoogieIcfgContainer [2022-10-16 14:30:02,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:30:03,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:30:03,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:30:03,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:30:03,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:30:02" (1/3) ... [2022-10-16 14:30:03,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad23e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:03, skipping insertion in model container [2022-10-16 14:30:03,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:02" (2/3) ... [2022-10-16 14:30:03,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad23e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:03, skipping insertion in model container [2022-10-16 14:30:03,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:02" (3/3) ... [2022-10-16 14:30:03,009 INFO L112 eAbstractionObserver]: Analyzing ICFG gr2006.i [2022-10-16 14:30:03,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:30:03,034 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 14:30:03,096 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:30:03,106 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;@74a9e453, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:30:03,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 14:30:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 23 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 14:30:03,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:30:03,119 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:03,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:30:03,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:03,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:03,128 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2022-10-16 14:30:03,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:03,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78481576] [2022-10-16 14:30:03,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:03,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:03,361 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 14:30:03,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:03,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78481576] [2022-10-16 14:30:03,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78481576] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:03,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:30:03,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:30:03,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379212305] [2022-10-16 14:30:03,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:03,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:30:03,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:03,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:30:03,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:30:03,411 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 23 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:03,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:03,454 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2022-10-16 14:30:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:30:03,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:30:03,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:03,467 INFO L225 Difference]: With dead ends: 64 [2022-10-16 14:30:03,468 INFO L226 Difference]: Without dead ends: 28 [2022-10-16 14:30:03,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:30:03,477 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:03,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 41 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:03,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-10-16 14:30:03,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 19. [2022-10-16 14:30:03,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.5384615384615385) 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 14:30:03,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-10-16 14:30:03,524 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 5 [2022-10-16 14:30:03,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:03,524 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-10-16 14:30:03,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:03,525 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-10-16 14:30:03,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:30:03,526 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:03,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:30:03,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:30:03,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:03,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:03,528 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2022-10-16 14:30:03,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:03,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381228316] [2022-10-16 14:30:03,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:03,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:03,648 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 14:30:03,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:03,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381228316] [2022-10-16 14:30:03,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381228316] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:03,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:30:03,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:30:03,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413890183] [2022-10-16 14:30:03,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:03,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:30:03,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:03,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:30:03,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:30:03,653 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:03,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:03,686 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-10-16 14:30:03,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:30:03,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:30:03,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:03,688 INFO L225 Difference]: With dead ends: 23 [2022-10-16 14:30:03,688 INFO L226 Difference]: Without dead ends: 21 [2022-10-16 14:30:03,689 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 14:30:03,691 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 39 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 14:30:03,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 39 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:03,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-10-16 14:30:03,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-10-16 14:30:03,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:03,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-10-16 14:30:03,698 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 5 [2022-10-16 14:30:03,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:03,698 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-10-16 14:30:03,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:03,699 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-10-16 14:30:03,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 14:30:03,699 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:03,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:03,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:30:03,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:03,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:03,701 INFO L85 PathProgramCache]: Analyzing trace with hash 295897769, now seen corresponding path program 1 times [2022-10-16 14:30:03,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:03,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439549842] [2022-10-16 14:30:03,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:03,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:03,798 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 14:30:03,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:03,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439549842] [2022-10-16 14:30:03,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439549842] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:03,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:30:03,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:30:03,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190036344] [2022-10-16 14:30:03,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:03,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:30:03,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:03,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:30:03,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:30:03,802 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:03,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:03,832 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-10-16 14:30:03,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:30:03,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-10-16 14:30:03,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:03,833 INFO L225 Difference]: With dead ends: 26 [2022-10-16 14:30:03,833 INFO L226 Difference]: Without dead ends: 24 [2022-10-16 14:30:03,834 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 14:30:03,836 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:03,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 38 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:03,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-10-16 14:30:03,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-10-16 14:30:03,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:03,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-10-16 14:30:03,844 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 8 [2022-10-16 14:30:03,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:03,844 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-10-16 14:30:03,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:03,845 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-10-16 14:30:03,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:30:03,845 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:03,846 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:03,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:30:03,846 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:03,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:03,847 INFO L85 PathProgramCache]: Analyzing trace with hash 511264276, now seen corresponding path program 1 times [2022-10-16 14:30:03,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:03,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618818537] [2022-10-16 14:30:03,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:03,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:03,946 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 14:30:03,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:03,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618818537] [2022-10-16 14:30:03,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618818537] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:03,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821411935] [2022-10-16 14:30:03,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:03,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:03,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:03,950 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 14:30:03,971 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 14:30:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:04,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:30:04,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:04,090 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 14:30:04,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:04,153 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 14:30:04,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821411935] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:04,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:04,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:30:04,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575910552] [2022-10-16 14:30:04,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:04,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:30:04,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:04,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:30:04,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:30:04,160 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 10 states, 10 states have (on average 3.0) 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 14:30:04,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:04,260 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2022-10-16 14:30:04,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:30:04,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) 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 12 [2022-10-16 14:30:04,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:04,262 INFO L225 Difference]: With dead ends: 56 [2022-10-16 14:30:04,262 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 14:30:04,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:30:04,265 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 27 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:04,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 73 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:04,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 14:30:04,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2022-10-16 14:30:04,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-10-16 14:30:04,274 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 12 [2022-10-16 14:30:04,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:04,274 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-10-16 14:30:04,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) 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 14:30:04,275 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-10-16 14:30:04,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:30:04,275 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:04,276 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:04,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:30:04,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:04,490 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:04,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:04,492 INFO L85 PathProgramCache]: Analyzing trace with hash 511264084, now seen corresponding path program 1 times [2022-10-16 14:30:04,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:04,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127773653] [2022-10-16 14:30:04,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:04,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:04,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:04,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127773653] [2022-10-16 14:30:04,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127773653] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:04,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069800592] [2022-10-16 14:30:04,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:04,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:04,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:04,602 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 14:30:04,616 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 14:30:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:04,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:30:04,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:04,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:04,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:04,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069800592] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:04,741 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:04,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:30:04,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306910001] [2022-10-16 14:30:04,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:04,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:30:04,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:04,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:30:04,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:30:04,745 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 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 14:30:04,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:04,911 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2022-10-16 14:30:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:30:04,914 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:30:04,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:04,917 INFO L225 Difference]: With dead ends: 53 [2022-10-16 14:30:04,918 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 14:30:04,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:30:04,923 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 33 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:04,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 76 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:30:04,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 14:30:04,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 41. [2022-10-16 14:30:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 40 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 14:30:04,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2022-10-16 14:30:04,945 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 12 [2022-10-16 14:30:04,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:04,950 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2022-10-16 14:30:04,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 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 14:30:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2022-10-16 14:30:04,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:30:04,954 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:04,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:05,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:05,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:05,173 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:05,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:05,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1330682532, now seen corresponding path program 1 times [2022-10-16 14:30:05,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:05,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435151827] [2022-10-16 14:30:05,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:05,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:05,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:05,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:05,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435151827] [2022-10-16 14:30:05,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435151827] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:05,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:30:05,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:30:05,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490680705] [2022-10-16 14:30:05,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:05,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:30:05,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:05,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:30:05,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:30:05,229 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:05,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:05,251 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2022-10-16 14:30:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:30:05,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 14:30:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:05,253 INFO L225 Difference]: With dead ends: 42 [2022-10-16 14:30:05,253 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 14:30:05,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 14:30:05,255 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:05,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 22 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:05,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 14:30:05,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-10-16 14:30:05,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 39 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:05,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2022-10-16 14:30:05,265 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 13 [2022-10-16 14:30:05,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:05,265 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2022-10-16 14:30:05,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:05,266 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2022-10-16 14:30:05,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:30:05,266 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:05,267 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:30:05,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:30:05,267 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:05,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:05,268 INFO L85 PathProgramCache]: Analyzing trace with hash 184890914, now seen corresponding path program 1 times [2022-10-16 14:30:05,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:05,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129569944] [2022-10-16 14:30:05,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:05,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:05,365 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:05,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:05,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129569944] [2022-10-16 14:30:05,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129569944] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:05,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898274018] [2022-10-16 14:30:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:05,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:05,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:05,368 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 14:30:05,380 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 14:30:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:05,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:30:05,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:05,475 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:05,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:30:05,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898274018] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:05,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:30:05,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 14:30:05,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016808171] [2022-10-16 14:30:05,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:05,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:30:05,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:05,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:30:05,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:30:05,478 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:05,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:05,501 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2022-10-16 14:30:05,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:30:05,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 14:30:05,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:05,503 INFO L225 Difference]: With dead ends: 40 [2022-10-16 14:30:05,503 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 14:30:05,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:30:05,505 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 20 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 14:30:05,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 20 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:05,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 14:30:05,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-10-16 14:30:05,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:05,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-10-16 14:30:05,514 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 16 [2022-10-16 14:30:05,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:05,515 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-10-16 14:30:05,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:05,515 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-10-16 14:30:05,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 14:30:05,516 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:05,516 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2022-10-16 14:30:05,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 14:30:05,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:05,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:05,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:05,732 INFO L85 PathProgramCache]: Analyzing trace with hash -758057719, now seen corresponding path program 1 times [2022-10-16 14:30:05,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:05,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748924067] [2022-10-16 14:30:05,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:05,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 14:30:05,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:05,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748924067] [2022-10-16 14:30:05,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748924067] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:05,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:30:05,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:30:05,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445506513] [2022-10-16 14:30:05,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:05,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:30:05,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:05,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:30:05,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:30:05,791 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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 14:30:05,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:05,813 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-10-16 14:30:05,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:30:05,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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 22 [2022-10-16 14:30:05,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:05,815 INFO L225 Difference]: With dead ends: 43 [2022-10-16 14:30:05,815 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 14:30:05,815 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 14:30:05,817 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 5 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:05,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 30 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:05,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 14:30:05,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2022-10-16 14:30:05,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 37 states have (on average 1.162162162162162) internal successors, (43), 40 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:05,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2022-10-16 14:30:05,825 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 22 [2022-10-16 14:30:05,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:05,826 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2022-10-16 14:30:05,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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 14:30:05,826 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2022-10-16 14:30:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 14:30:05,827 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:05,827 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-10-16 14:30:05,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:30:05,828 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:05,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:05,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1743454324, now seen corresponding path program 2 times [2022-10-16 14:30:05,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:05,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70172300] [2022-10-16 14:30:05,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:05,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:06,046 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:06,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:06,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70172300] [2022-10-16 14:30:06,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70172300] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:06,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362152964] [2022-10-16 14:30:06,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:30:06,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:06,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:06,049 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 14:30:06,070 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 14:30:06,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:30:06,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:06,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:30:06,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:06,176 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:06,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:06,310 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:06,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362152964] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:06,311 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:06,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-10-16 14:30:06,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778973164] [2022-10-16 14:30:06,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:06,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 14:30:06,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:06,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 14:30:06,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:30:06,314 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:06,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:06,574 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2022-10-16 14:30:06,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 14:30:06,575 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 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 26 [2022-10-16 14:30:06,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:06,576 INFO L225 Difference]: With dead ends: 73 [2022-10-16 14:30:06,576 INFO L226 Difference]: Without dead ends: 71 [2022-10-16 14:30:06,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=811, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 14:30:06,579 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 90 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:06,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 58 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:30:06,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-16 14:30:06,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 54. [2022-10-16 14:30:06,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 53 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 14:30:06,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2022-10-16 14:30:06,587 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 26 [2022-10-16 14:30:06,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:06,588 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2022-10-16 14:30:06,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:06,588 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-10-16 14:30:06,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 14:30:06,589 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:06,589 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2022-10-16 14:30:06,616 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 14:30:06,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:06,804 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 14:30:06,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:06,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1787490750, now seen corresponding path program 1 times [2022-10-16 14:30:06,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:06,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722123578] [2022-10-16 14:30:06,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:06,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:06,872 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-16 14:30:06,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:06,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722123578] [2022-10-16 14:30:06,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722123578] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:06,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:30:06,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:30:06,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116290769] [2022-10-16 14:30:06,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:06,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:30:06,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:06,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:30:06,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:30:06,875 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:06,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:06,890 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-10-16 14:30:06,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:30:06,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 14:30:06,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:06,891 INFO L225 Difference]: With dead ends: 54 [2022-10-16 14:30:06,892 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 14:30:06,892 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 14:30:06,893 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:06,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 20 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:06,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 14:30:06,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-10-16 14:30:06,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2022-10-16 14:30:06,901 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 27 [2022-10-16 14:30:06,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:06,901 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2022-10-16 14:30:06,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:06,902 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-10-16 14:30:06,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 14:30:06,903 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:06,903 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:06,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:30:06,903 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:06,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:06,904 INFO L85 PathProgramCache]: Analyzing trace with hash 208309572, now seen corresponding path program 1 times [2022-10-16 14:30:06,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:06,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371326627] [2022-10-16 14:30:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:06,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:07,028 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:07,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:07,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371326627] [2022-10-16 14:30:07,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371326627] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:07,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980842841] [2022-10-16 14:30:07,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:07,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:07,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:07,031 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 14:30:07,033 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 14:30:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:07,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:30:07,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:07,124 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:07,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:07,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980842841] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:07,244 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:07,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-16 14:30:07,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98189238] [2022-10-16 14:30:07,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:07,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:30:07,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:07,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:30:07,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:30:07,247 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:07,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:07,381 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2022-10-16 14:30:07,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:30:07,382 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 14:30:07,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:07,383 INFO L225 Difference]: With dead ends: 96 [2022-10-16 14:30:07,383 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:30:07,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:30:07,385 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 53 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:07,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 62 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:30:07,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:30:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2022-10-16 14:30:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 57 states have (on average 1.0701754385964912) internal successors, (61), 58 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:07,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2022-10-16 14:30:07,393 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 29 [2022-10-16 14:30:07,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:07,393 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2022-10-16 14:30:07,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:07,394 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2022-10-16 14:30:07,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 14:30:07,395 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:07,395 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1] [2022-10-16 14:30:07,424 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 14:30:07,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 14:30:07,611 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:07,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:07,612 INFO L85 PathProgramCache]: Analyzing trace with hash -183037420, now seen corresponding path program 2 times [2022-10-16 14:30:07,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:07,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957646802] [2022-10-16 14:30:07,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:07,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:07,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:07,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957646802] [2022-10-16 14:30:07,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957646802] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:07,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382275122] [2022-10-16 14:30:07,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:30:07,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:07,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:07,892 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 14:30:07,910 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 14:30:07,938 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:30:07,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:07,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 14:30:07,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:08,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:08,245 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:08,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382275122] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:08,246 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:08,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2022-10-16 14:30:08,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847396938] [2022-10-16 14:30:08,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:08,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 14:30:08,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:08,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 14:30:08,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2022-10-16 14:30:08,250 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand has 28 states, 27 states have (on average 3.111111111111111) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:08,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:08,486 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2022-10-16 14:30:08,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 14:30:08,487 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.111111111111111) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-16 14:30:08,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:08,488 INFO L225 Difference]: With dead ends: 107 [2022-10-16 14:30:08,488 INFO L226 Difference]: Without dead ends: 106 [2022-10-16 14:30:08,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=457, Invalid=1103, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 14:30:08,490 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 96 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:08,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 96 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:30:08,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-16 14:30:08,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 95. [2022-10-16 14:30:08,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 93 states have (on average 1.086021505376344) internal successors, (101), 94 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 101 transitions. [2022-10-16 14:30:08,501 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 101 transitions. Word has length 40 [2022-10-16 14:30:08,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:08,502 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 101 transitions. [2022-10-16 14:30:08,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.111111111111111) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:08,502 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 101 transitions. [2022-10-16 14:30:08,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 14:30:08,504 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:08,504 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:08,540 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 14:30:08,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:08,718 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:08,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:08,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1359468676, now seen corresponding path program 2 times [2022-10-16 14:30:08,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:08,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181120847] [2022-10-16 14:30:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:08,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:09,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:09,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181120847] [2022-10-16 14:30:09,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181120847] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:09,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257832671] [2022-10-16 14:30:09,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:30:09,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:09,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:09,016 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 14:30:09,036 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 14:30:09,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:30:09,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:09,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 14:30:09,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:09,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:09,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257832671] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:09,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:09,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 36 [2022-10-16 14:30:09,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771471836] [2022-10-16 14:30:09,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:09,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 14:30:09,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:09,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 14:30:09,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=341, Invalid=919, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 14:30:09,500 INFO L87 Difference]: Start difference. First operand 95 states and 101 transitions. Second operand has 36 states, 36 states have (on average 3.5) internal successors, (126), 36 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 14:30:09,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:09,820 INFO L93 Difference]: Finished difference Result 162 states and 184 transitions. [2022-10-16 14:30:09,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 14:30:09,821 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.5) internal successors, (126), 36 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 57 [2022-10-16 14:30:09,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:09,823 INFO L225 Difference]: With dead ends: 162 [2022-10-16 14:30:09,824 INFO L226 Difference]: Without dead ends: 149 [2022-10-16 14:30:09,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=767, Invalid=1885, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 14:30:09,827 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 149 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:09,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 88 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:30:09,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-10-16 14:30:09,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 146. [2022-10-16 14:30:09,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 144 states have (on average 1.0972222222222223) internal successors, (158), 145 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 158 transitions. [2022-10-16 14:30:09,841 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 158 transitions. Word has length 57 [2022-10-16 14:30:09,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:09,841 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 158 transitions. [2022-10-16 14:30:09,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.5) internal successors, (126), 36 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 14:30:09,842 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 158 transitions. [2022-10-16 14:30:09,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 14:30:09,844 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:09,844 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2022-10-16 14:30:09,883 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 14:30:10,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:10,058 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:10,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:10,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1166194278, now seen corresponding path program 1 times [2022-10-16 14:30:10,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:10,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321975860] [2022-10-16 14:30:10,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:10,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-10-16 14:30:10,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:10,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321975860] [2022-10-16 14:30:10,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321975860] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:10,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:30:10,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:30:10,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147861826] [2022-10-16 14:30:10,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:10,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:30:10,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:10,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:30:10,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:30:10,144 INFO L87 Difference]: Start difference. First operand 146 states and 158 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:10,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:10,173 INFO L93 Difference]: Finished difference Result 218 states and 239 transitions. [2022-10-16 14:30:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:30:10,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-10-16 14:30:10,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:10,175 INFO L225 Difference]: With dead ends: 218 [2022-10-16 14:30:10,175 INFO L226 Difference]: Without dead ends: 156 [2022-10-16 14:30:10,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:30:10,177 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:10,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 36 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:30:10,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-10-16 14:30:10,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2022-10-16 14:30:10,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 149 states have (on average 1.0469798657718121) internal successors, (156), 150 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 14:30:10,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 156 transitions. [2022-10-16 14:30:10,189 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 156 transitions. Word has length 68 [2022-10-16 14:30:10,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:10,189 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 156 transitions. [2022-10-16 14:30:10,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:10,190 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 156 transitions. [2022-10-16 14:30:10,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 14:30:10,192 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:10,192 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1] [2022-10-16 14:30:10,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 14:30:10,192 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:10,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:10,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1964437033, now seen corresponding path program 3 times [2022-10-16 14:30:10,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:10,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056027876] [2022-10-16 14:30:10,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:10,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:10,797 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:10,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:10,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056027876] [2022-10-16 14:30:10,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056027876] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:10,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772626556] [2022-10-16 14:30:10,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:30:10,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:10,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:10,800 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 14:30:10,806 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 14:30:10,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-10-16 14:30:10,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:10,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 14:30:10,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:11,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:11,801 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:11,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772626556] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:11,801 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:11,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 55 [2022-10-16 14:30:11,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189122058] [2022-10-16 14:30:11,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:11,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-10-16 14:30:11,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:11,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-10-16 14:30:11,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=811, Invalid=2269, Unknown=0, NotChecked=0, Total=3080 [2022-10-16 14:30:11,805 INFO L87 Difference]: Start difference. First operand 151 states and 156 transitions. Second operand has 56 states, 55 states have (on average 3.309090909090909) internal successors, (182), 56 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:12,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:12,525 INFO L93 Difference]: Finished difference Result 285 states and 317 transitions. [2022-10-16 14:30:12,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-10-16 14:30:12,526 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 3.309090909090909) internal successors, (182), 56 states have internal predecessors, (182), 0 states have call successors, (0), 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 89 [2022-10-16 14:30:12,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:12,528 INFO L225 Difference]: With dead ends: 285 [2022-10-16 14:30:12,528 INFO L226 Difference]: Without dead ends: 284 [2022-10-16 14:30:12,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1892, Invalid=4750, Unknown=0, NotChecked=0, Total=6642 [2022-10-16 14:30:12,532 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 257 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:12,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 194 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:30:12,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-10-16 14:30:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2022-10-16 14:30:12,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 247 states have (on average 1.0850202429149798) internal successors, (268), 248 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:12,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions. [2022-10-16 14:30:12,546 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 89 [2022-10-16 14:30:12,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:12,547 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions. [2022-10-16 14:30:12,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 3.309090909090909) internal successors, (182), 56 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:12,547 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions. [2022-10-16 14:30:12,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 14:30:12,550 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:12,550 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 9, 9, 9, 8, 8, 8, 1, 1, 1] [2022-10-16 14:30:12,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:12,764 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 14:30:12,765 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:12,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:12,766 INFO L85 PathProgramCache]: Analyzing trace with hash -2067626385, now seen corresponding path program 3 times [2022-10-16 14:30:12,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:12,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084196979] [2022-10-16 14:30:12,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:12,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:13,329 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 352 proven. 212 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-10-16 14:30:13,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:13,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084196979] [2022-10-16 14:30:13,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084196979] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:13,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250461513] [2022-10-16 14:30:13,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:30:13,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:13,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:13,331 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 14:30:13,354 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 14:30:13,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-10-16 14:30:13,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:13,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 14:30:13,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 352 proven. 212 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-10-16 14:30:13,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 352 proven. 212 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-10-16 14:30:13,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250461513] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:13,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:13,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 38 [2022-10-16 14:30:13,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960574679] [2022-10-16 14:30:13,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:13,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 14:30:13,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:13,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 14:30:13,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=1026, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 14:30:13,862 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand has 38 states, 38 states have (on average 3.5526315789473686) internal successors, (135), 38 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:14,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:14,195 INFO L93 Difference]: Finished difference Result 303 states and 322 transitions. [2022-10-16 14:30:14,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 14:30:14,195 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.5526315789473686) internal successors, (135), 38 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-10-16 14:30:14,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:14,197 INFO L225 Difference]: With dead ends: 303 [2022-10-16 14:30:14,197 INFO L226 Difference]: Without dead ends: 242 [2022-10-16 14:30:14,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=831, Invalid=2031, Unknown=0, NotChecked=0, Total=2862 [2022-10-16 14:30:14,200 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 130 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:14,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 116 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:30:14,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-10-16 14:30:14,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-10-16 14:30:14,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 240 states have (on average 1.05) internal successors, (252), 241 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:14,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 252 transitions. [2022-10-16 14:30:14,212 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 252 transitions. Word has length 120 [2022-10-16 14:30:14,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:14,213 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 252 transitions. [2022-10-16 14:30:14,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.5526315789473686) internal successors, (135), 38 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:14,213 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 252 transitions. [2022-10-16 14:30:14,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-16 14:30:14,221 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:14,221 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 24, 24, 17, 17, 17, 8, 8, 8, 1, 1, 1] [2022-10-16 14:30:14,257 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 14:30:14,435 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 14:30:14,436 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:14,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:14,437 INFO L85 PathProgramCache]: Analyzing trace with hash -194515927, now seen corresponding path program 4 times [2022-10-16 14:30:14,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:14,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553718701] [2022-10-16 14:30:14,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:14,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:15,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1804 backedges. 643 proven. 986 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-16 14:30:15,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:15,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553718701] [2022-10-16 14:30:15,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553718701] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:15,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592452741] [2022-10-16 14:30:15,574 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:30:15,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:15,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:15,578 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 14:30:15,588 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 14:30:15,684 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:30:15,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:15,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 36 conjunts are in the unsatisfiable core [2022-10-16 14:30:15,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:15,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1804 backedges. 643 proven. 986 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-16 14:30:15,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1804 backedges. 643 proven. 986 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-16 14:30:17,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592452741] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:17,039 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:17,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 74 [2022-10-16 14:30:17,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385528189] [2022-10-16 14:30:17,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:17,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-10-16 14:30:17,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:17,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-10-16 14:30:17,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1406, Invalid=3996, Unknown=0, NotChecked=0, Total=5402 [2022-10-16 14:30:17,044 INFO L87 Difference]: Start difference. First operand 242 states and 252 transitions. Second operand has 74 states, 74 states have (on average 3.527027027027027) internal successors, (261), 74 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:18,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:18,106 INFO L93 Difference]: Finished difference Result 366 states and 385 transitions. [2022-10-16 14:30:18,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-10-16 14:30:18,107 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 3.527027027027027) internal successors, (261), 74 states have internal predecessors, (261), 0 states have call successors, (0), 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 176 [2022-10-16 14:30:18,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:18,109 INFO L225 Difference]: With dead ends: 366 [2022-10-16 14:30:18,109 INFO L226 Difference]: Without dead ends: 312 [2022-10-16 14:30:18,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2529 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3279, Invalid=8277, Unknown=0, NotChecked=0, Total=11556 [2022-10-16 14:30:18,119 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 465 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:18,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 173 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:30:18,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-10-16 14:30:18,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 304. [2022-10-16 14:30:18,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 302 states have (on average 1.0364238410596027) internal successors, (313), 303 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:18,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 313 transitions. [2022-10-16 14:30:18,133 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 313 transitions. Word has length 176 [2022-10-16 14:30:18,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:18,134 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 313 transitions. [2022-10-16 14:30:18,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.527027027027027) internal successors, (261), 74 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:18,134 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 313 transitions. [2022-10-16 14:30:18,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-10-16 14:30:18,136 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:18,137 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 1, 1, 1] [2022-10-16 14:30:18,172 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 14:30:18,351 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 14:30:18,352 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:18,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:18,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1038835319, now seen corresponding path program 4 times [2022-10-16 14:30:18,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:18,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974219896] [2022-10-16 14:30:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:18,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2353 backedges. 0 proven. 2353 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:20,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:20,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974219896] [2022-10-16 14:30:20,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974219896] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:20,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065943200] [2022-10-16 14:30:20,390 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:30:20,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:20,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:20,392 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 14:30:20,406 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 14:30:20,487 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:30:20,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:20,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 55 conjunts are in the unsatisfiable core [2022-10-16 14:30:20,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2353 backedges. 0 proven. 2353 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:20,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:23,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2353 backedges. 0 proven. 2353 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:23,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065943200] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:23,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:23,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 55] total 111 [2022-10-16 14:30:23,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396442460] [2022-10-16 14:30:23,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:23,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-10-16 14:30:23,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:23,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-10-16 14:30:23,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3191, Invalid=9241, Unknown=0, NotChecked=0, Total=12432 [2022-10-16 14:30:23,565 INFO L87 Difference]: Start difference. First operand 304 states and 313 transitions. Second operand has 112 states, 111 states have (on average 3.4054054054054053) internal successors, (378), 112 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:25,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:25,970 INFO L93 Difference]: Finished difference Result 478 states and 525 transitions. [2022-10-16 14:30:25,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-10-16 14:30:25,971 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 111 states have (on average 3.4054054054054053) internal successors, (378), 112 states have internal predecessors, (378), 0 states have call successors, (0), 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 187 [2022-10-16 14:30:25,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:25,974 INFO L225 Difference]: With dead ends: 478 [2022-10-16 14:30:25,974 INFO L226 Difference]: Without dead ends: 477 [2022-10-16 14:30:25,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6040 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=7702, Invalid=19688, Unknown=0, NotChecked=0, Total=27390 [2022-10-16 14:30:25,981 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 624 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:25,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 249 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:30:25,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-10-16 14:30:25,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 438. [2022-10-16 14:30:25,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 436 states have (on average 1.0504587155963303) internal successors, (458), 437 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 458 transitions. [2022-10-16 14:30:26,000 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 458 transitions. Word has length 187 [2022-10-16 14:30:26,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:26,000 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 458 transitions. [2022-10-16 14:30:26,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 111 states have (on average 3.4054054054054053) internal successors, (378), 112 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:26,001 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 458 transitions. [2022-10-16 14:30:26,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-10-16 14:30:26,005 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:26,006 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 42, 42, 35, 35, 35, 8, 8, 8, 1, 1, 1] [2022-10-16 14:30:26,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:26,219 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 14:30:26,220 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:26,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:26,221 INFO L85 PathProgramCache]: Analyzing trace with hash -442848887, now seen corresponding path program 5 times [2022-10-16 14:30:26,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:26,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309598067] [2022-10-16 14:30:26,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:26,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:30,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5719 backedges. 1309 proven. 4235 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-16 14:30:30,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:30,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309598067] [2022-10-16 14:30:30,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309598067] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:30,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091238835] [2022-10-16 14:30:30,087 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:30:30,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:30,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:30,088 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 14:30:30,097 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 14:30:30,273 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2022-10-16 14:30:30,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:30,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 72 conjunts are in the unsatisfiable core [2022-10-16 14:30:30,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:30,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5719 backedges. 1309 proven. 4235 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-16 14:30:30,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:33,962 INFO L134 CoverageAnalysis]: Checked inductivity of 5719 backedges. 1309 proven. 4235 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-16 14:30:33,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091238835] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:33,963 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:33,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73, 73] total 103 [2022-10-16 14:30:33,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693211910] [2022-10-16 14:30:33,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:33,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-10-16 14:30:33,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:33,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-10-16 14:30:33,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2703, Invalid=7803, Unknown=0, NotChecked=0, Total=10506 [2022-10-16 14:30:33,980 INFO L87 Difference]: Start difference. First operand 438 states and 458 transitions. Second operand has 103 states, 103 states have (on average 3.5436893203883497) internal successors, (365), 103 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:36,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:36,080 INFO L93 Difference]: Finished difference Result 492 states and 512 transitions. [2022-10-16 14:30:36,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-10-16 14:30:36,080 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 3.5436893203883497) internal successors, (365), 103 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 302 [2022-10-16 14:30:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:36,086 INFO L225 Difference]: With dead ends: 492 [2022-10-16 14:30:36,086 INFO L226 Difference]: Without dead ends: 438 [2022-10-16 14:30:36,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 531 SyntacticMatches, 43 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7552 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=6478, Invalid=16474, Unknown=0, NotChecked=0, Total=22952 [2022-10-16 14:30:36,090 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 539 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:36,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 233 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:30:36,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-10-16 14:30:36,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2022-10-16 14:30:36,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 436 states have (on average 1.0160550458715596) internal successors, (443), 437 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:36,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 443 transitions. [2022-10-16 14:30:36,109 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 443 transitions. Word has length 302 [2022-10-16 14:30:36,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:36,109 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 443 transitions. [2022-10-16 14:30:36,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 3.5436893203883497) internal successors, (365), 103 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:36,110 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 443 transitions. [2022-10-16 14:30:36,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-10-16 14:30:36,117 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:36,117 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 54, 54, 54, 54, 54, 1, 1, 1] [2022-10-16 14:30:36,154 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 14:30:36,330 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 14:30:36,331 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:36,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:36,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1955168183, now seen corresponding path program 5 times [2022-10-16 14:30:36,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:36,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731425903] [2022-10-16 14:30:36,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:36,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 10179 backedges. 0 proven. 10179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:44,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:44,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731425903] [2022-10-16 14:30:44,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731425903] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:44,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408461959] [2022-10-16 14:30:44,444 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:30:44,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:44,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:44,450 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 14:30:44,453 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 14:30:44,685 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 55 check-sat command(s) [2022-10-16 14:30:44,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:44,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 102 conjunts are in the unsatisfiable core [2022-10-16 14:30:44,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:53,207 INFO L134 CoverageAnalysis]: Checked inductivity of 10179 backedges. 10133 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 14:30:53,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:30:53,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408461959] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:30:53,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:30:53,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [111] total 213 [2022-10-16 14:30:53,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365841749] [2022-10-16 14:30:53,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:30:53,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-10-16 14:30:53,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:53,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-10-16 14:30:53,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5893, Invalid=39263, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 14:30:53,214 INFO L87 Difference]: Start difference. First operand 438 states and 443 transitions. Second operand has 103 states, 103 states have (on average 3.5145631067961167) internal successors, (362), 103 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:57,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:57,514 INFO L93 Difference]: Finished difference Result 492 states and 497 transitions. [2022-10-16 14:30:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-10-16 14:30:57,515 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 3.5145631067961167) internal successors, (362), 103 states have internal predecessors, (362), 0 states have call successors, (0), 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 383 [2022-10-16 14:30:57,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:57,518 INFO L225 Difference]: With dead ends: 492 [2022-10-16 14:30:57,518 INFO L226 Difference]: Without dead ends: 408 [2022-10-16 14:30:57,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 262 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18675 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=9921, Invalid=59511, Unknown=0, NotChecked=0, Total=69432 [2022-10-16 14:30:57,525 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 124 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:57,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1117 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 14:30:57,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-10-16 14:30:57,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2022-10-16 14:30:57,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.0024570024570025) internal successors, (408), 407 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:57,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 408 transitions. [2022-10-16 14:30:57,556 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 408 transitions. Word has length 383 [2022-10-16 14:30:57,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:57,558 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 408 transitions. [2022-10-16 14:30:57,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 3.5145631067961167) internal successors, (362), 103 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 408 transitions. [2022-10-16 14:30:57,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-10-16 14:30:57,568 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:57,569 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 57, 57, 50, 50, 50, 8, 8, 8, 1, 1, 1] [2022-10-16 14:30:57,595 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 14:30:57,779 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 14:30:57,780 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:30:57,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:57,781 INFO L85 PathProgramCache]: Analyzing trace with hash -496936866, now seen corresponding path program 6 times [2022-10-16 14:30:57,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:57,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601899996] [2022-10-16 14:30:57,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:57,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:31:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 10714 backedges. 0 proven. 10714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:31:06,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:31:06,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601899996] [2022-10-16 14:31:06,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601899996] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:31:06,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674937008] [2022-10-16 14:31:06,698 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:31:06,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:31:06,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:31:06,699 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 14:31:06,700 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 14:31:06,798 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2022-10-16 14:31:06,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:31:06,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 14:31:06,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:31:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 10714 backedges. 2466 proven. 256 refuted. 0 times theorem prover too weak. 7992 trivial. 0 not checked. [2022-10-16 14:31:07,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:31:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 10714 backedges. 2466 proven. 256 refuted. 0 times theorem prover too weak. 7992 trivial. 0 not checked. [2022-10-16 14:31:08,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674937008] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:31:08,787 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:31:08,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 21, 21] total 139 [2022-10-16 14:31:08,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623727566] [2022-10-16 14:31:08,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:31:08,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 140 states [2022-10-16 14:31:08,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:31:08,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2022-10-16 14:31:08,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4969, Invalid=14491, Unknown=0, NotChecked=0, Total=19460 [2022-10-16 14:31:08,793 INFO L87 Difference]: Start difference. First operand 408 states and 408 transitions. Second operand has 140 states, 139 states have (on average 3.5611510791366907) internal successors, (495), 140 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:31:12,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:31:12,968 INFO L93 Difference]: Finished difference Result 494 states and 505 transitions. [2022-10-16 14:31:12,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-10-16 14:31:12,969 INFO L78 Accepts]: Start accepts. Automaton has has 140 states, 139 states have (on average 3.5611510791366907) internal successors, (495), 140 states have internal predecessors, (495), 0 states have call successors, (0), 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 407 [2022-10-16 14:31:12,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:31:12,973 INFO L225 Difference]: With dead ends: 494 [2022-10-16 14:31:12,973 INFO L226 Difference]: Without dead ends: 493 [2022-10-16 14:31:12,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 998 GetRequests, 790 SyntacticMatches, 1 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7188 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=12283, Invalid=31189, Unknown=0, NotChecked=0, Total=43472 [2022-10-16 14:31:12,977 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1395 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:31:12,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 254 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:31:12,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-10-16 14:31:12,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 492. [2022-10-16 14:31:12,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 491 states have (on average 1.0020366598778003) internal successors, (492), 491 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:31:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 492 transitions. [2022-10-16 14:31:12,996 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 492 transitions. Word has length 407 [2022-10-16 14:31:12,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:31:12,997 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 492 transitions. [2022-10-16 14:31:12,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 140 states, 139 states have (on average 3.5611510791366907) internal successors, (495), 140 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:31:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 492 transitions. [2022-10-16 14:31:13,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2022-10-16 14:31:13,001 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:31:13,002 INFO L195 NwaCegarLoop]: trace histogram [70, 70, 69, 69, 50, 50, 50, 20, 20, 20, 1, 1, 1] [2022-10-16 14:31:13,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-10-16 14:31:13,215 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 14:31:13,216 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:31:13,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:31:13,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2103744926, now seen corresponding path program 7 times [2022-10-16 14:31:13,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:31:13,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702898207] [2022-10-16 14:31:13,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:31:13,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:31:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:31:25,352 INFO L134 CoverageAnalysis]: Checked inductivity of 14836 backedges. 0 proven. 14836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:31:25,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:31:25,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702898207] [2022-10-16 14:31:25,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702898207] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:31:25,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304753151] [2022-10-16 14:31:25,353 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:31:25,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:31:25,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:31:25,354 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 14:31:25,362 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 14:31:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:31:25,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 141 conjunts are in the unsatisfiable core [2022-10-16 14:31:25,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:31:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 14836 backedges. 0 proven. 14836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:31:26,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:31:43,681 INFO L134 CoverageAnalysis]: Checked inductivity of 14836 backedges. 0 proven. 14836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:31:43,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304753151] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:31:43,682 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:31:43,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [141, 141, 141] total 283 [2022-10-16 14:31:43,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294450788] [2022-10-16 14:31:43,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:31:43,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 284 states [2022-10-16 14:31:43,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:31:43,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 284 interpolants. [2022-10-16 14:31:43,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20305, Invalid=60067, Unknown=0, NotChecked=0, Total=80372 [2022-10-16 14:31:43,732 INFO L87 Difference]: Start difference. First operand 492 states and 492 transitions. Second operand has 284 states, 283 states have (on average 3.4946996466431095) internal successors, (989), 284 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:32:01,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:32:01,480 INFO L93 Difference]: Finished difference Result 991 states and 1061 transitions. [2022-10-16 14:32:01,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 283 states. [2022-10-16 14:32:01,482 INFO L78 Accepts]: Start accepts. Automaton has has 284 states, 283 states have (on average 3.4946996466431095) internal successors, (989), 284 states have internal predecessors, (989), 0 states have call successors, (0), 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 491 [2022-10-16 14:32:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:32:01,487 INFO L225 Difference]: With dead ends: 991 [2022-10-16 14:32:01,487 INFO L226 Difference]: Without dead ends: 990 [2022-10-16 14:32:01,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1261 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 422 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39752 ImplicationChecksByTransitivity, 34.9s TimeCoverageRelationStatistics Valid=50057, Invalid=129295, Unknown=0, NotChecked=0, Total=179352 [2022-10-16 14:32:01,499 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3389 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3389 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:32:01,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3389 Valid, 464 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:32:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-10-16 14:32:01,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 989. [2022-10-16 14:32:01,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 988 states have (on average 1.0010121457489878) internal successors, (989), 988 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:32:01,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 989 transitions. [2022-10-16 14:32:01,536 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 989 transitions. Word has length 491 [2022-10-16 14:32:01,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:32:01,537 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 989 transitions. [2022-10-16 14:32:01,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 284 states, 283 states have (on average 3.4946996466431095) internal successors, (989), 284 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:32:01,538 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 989 transitions. [2022-10-16 14:32:01,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 989 [2022-10-16 14:32:01,547 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:32:01,548 INFO L195 NwaCegarLoop]: trace histogram [141, 141, 140, 140, 91, 91, 91, 50, 50, 50, 1, 1, 1] [2022-10-16 14:32:01,588 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 14:32:01,763 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 14:32:01,763 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 14:32:01,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:32:01,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1542438289, now seen corresponding path program 8 times [2022-10-16 14:32:01,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:32:01,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048733179] [2022-10-16 14:32:01,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:32:01,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:32:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:32:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 59850 backedges. 0 proven. 59850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:32:59,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:32:59,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048733179] [2022-10-16 14:32:59,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048733179] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:32:59,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015911877] [2022-10-16 14:32:59,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:32:59,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:32:59,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:32:59,013 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 14:32:59,014 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 14:32:59,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:32:59,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:32:59,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 2137 conjuncts, 204 conjunts are in the unsatisfiable core [2022-10-16 14:32:59,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:33:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 59850 backedges. 39450 proven. 14653 refuted. 0 times theorem prover too weak. 5747 trivial. 0 not checked. [2022-10-16 14:33:26,236 INFO L328 TraceCheckSpWp]: Computing backward predicates...