/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/termination-crafted/4NestedWith3Variables-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:44:03,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:44:03,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:44:03,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 22:44:03,888 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 [2022-10-15 22:44:03,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:44:03,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:44:03,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:44:03,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:44:03,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:44:03,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:44:03,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:44:03,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:44:03,949 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:44:03,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:44:03,951 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:44:03,952 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:44:03,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:44:03,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:44:03,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:44:03,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:44:03,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:44:03,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:44:03,953 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:44:03,953 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:44:03,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:44:03,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:44:03,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:44:03,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:44:03,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:44:03,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:44:03,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:44:03,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:44:03,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:44:03,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:44:03,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:44:03,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:44:03,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:44:03,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:44:04,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:44:04,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:44:04,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:44:04,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:44:04,386 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:44:04,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2022-10-15 22:44:04,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef4b9deed/d6b9ec260d7b4960b2eed67d33969675/FLAG1473e95ab [2022-10-15 22:44:05,130 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:44:05,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2022-10-15 22:44:05,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef4b9deed/d6b9ec260d7b4960b2eed67d33969675/FLAG1473e95ab [2022-10-15 22:44:05,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef4b9deed/d6b9ec260d7b4960b2eed67d33969675 [2022-10-15 22:44:05,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:44:05,534 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:44:05,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:44:05,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:44:05,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:44:05,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440446eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05, skipping insertion in model container [2022-10-15 22:44:05,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:44:05,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:44:05,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:44:05,783 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:44:05,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:44:05,815 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:44:05,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05 WrapperNode [2022-10-15 22:44:05,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:44:05,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:44:05,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:44:05,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:44:05,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,855 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2022-10-15 22:44:05,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:44:05,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:44:05,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:44:05,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:44:05,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,877 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:44:05,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:44:05,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:44:05,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:44:05,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (1/1) ... [2022-10-15 22:44:05,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:44:05,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:05,920 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) [2022-10-15 22:44:05,930 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 [2022-10-15 22:44:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:44:06,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:44:06,099 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:44:06,103 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:44:06,358 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:44:06,367 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:44:06,368 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 22:44:06,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:44:06 BoogieIcfgContainer [2022-10-15 22:44:06,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:44:06,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:44:06,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:44:06,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:44:06,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:44:05" (1/3) ... [2022-10-15 22:44:06,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f6e3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:44:06, skipping insertion in model container [2022-10-15 22:44:06,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:44:05" (2/3) ... [2022-10-15 22:44:06,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f6e3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:44:06, skipping insertion in model container [2022-10-15 22:44:06,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:44:06" (3/3) ... [2022-10-15 22:44:06,381 INFO L112 eAbstractionObserver]: Analyzing ICFG 4NestedWith3Variables-1.c [2022-10-15 22:44:06,405 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:44:06,405 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-15 22:44:06,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:44:06,493 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;@198e30d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:44:06,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-15 22:44:06,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.84) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:06,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 22:44:06,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:06,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:06,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:06,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:06,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907946, now seen corresponding path program 1 times [2022-10-15 22:44:06,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:06,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114003825] [2022-10-15 22:44:06,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:06,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:06,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:06,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114003825] [2022-10-15 22:44:06,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114003825] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:06,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:06,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:44:06,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227709650] [2022-10-15 22:44:06,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:06,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:44:06,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:06,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:44:06,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:44:06,987 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.84) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:07,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:07,130 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2022-10-15 22:44:07,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:44:07,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-15 22:44:07,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:07,146 INFO L225 Difference]: With dead ends: 62 [2022-10-15 22:44:07,146 INFO L226 Difference]: Without dead ends: 45 [2022-10-15 22:44:07,150 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 [2022-10-15 22:44:07,155 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 25 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:07,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 97 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:07,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-15 22:44:07,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-10-15 22:44:07,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 41 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) [2022-10-15 22:44:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2022-10-15 22:44:07,200 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 7 [2022-10-15 22:44:07,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:07,201 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2022-10-15 22:44:07,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:07,201 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2022-10-15 22:44:07,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 22:44:07,202 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:07,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:07,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:44:07,203 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:07,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:07,204 INFO L85 PathProgramCache]: Analyzing trace with hash 179571538, now seen corresponding path program 1 times [2022-10-15 22:44:07,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:07,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442069200] [2022-10-15 22:44:07,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:07,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:07,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:07,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:07,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442069200] [2022-10-15 22:44:07,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442069200] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:07,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:07,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:44:07,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325681060] [2022-10-15 22:44:07,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:07,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:44:07,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:07,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:44:07,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:44:07,277 INFO L87 Difference]: Start difference. First operand 42 states and 43 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) [2022-10-15 22:44:07,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:07,374 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2022-10-15 22:44:07,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:44:07,377 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 [2022-10-15 22:44:07,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:07,379 INFO L225 Difference]: With dead ends: 57 [2022-10-15 22:44:07,380 INFO L226 Difference]: Without dead ends: 55 [2022-10-15 22:44:07,380 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 [2022-10-15 22:44:07,385 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 17 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:07,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 85 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:07,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-15 22:44:07,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 43. [2022-10-15 22:44:07,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 42 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) [2022-10-15 22:44:07,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2022-10-15 22:44:07,405 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 8 [2022-10-15 22:44:07,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:07,406 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2022-10-15 22:44:07,408 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) [2022-10-15 22:44:07,409 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2022-10-15 22:44:07,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 22:44:07,410 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:07,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:07,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 22:44:07,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:07,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:07,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1913500626, now seen corresponding path program 1 times [2022-10-15 22:44:07,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:07,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391010216] [2022-10-15 22:44:07,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:07,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:07,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:07,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391010216] [2022-10-15 22:44:07,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391010216] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:07,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:07,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:44:07,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697229382] [2022-10-15 22:44:07,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:07,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:44:07,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:07,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:44:07,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:44:07,533 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:07,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:07,644 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2022-10-15 22:44:07,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:44:07,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-15 22:44:07,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:07,648 INFO L225 Difference]: With dead ends: 75 [2022-10-15 22:44:07,648 INFO L226 Difference]: Without dead ends: 73 [2022-10-15 22:44:07,649 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 [2022-10-15 22:44:07,652 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 40 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:07,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 61 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:07,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-15 22:44:07,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 50. [2022-10-15 22:44:07,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 49 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:07,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2022-10-15 22:44:07,673 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 11 [2022-10-15 22:44:07,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:07,676 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2022-10-15 22:44:07,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:07,677 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2022-10-15 22:44:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 22:44:07,678 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:07,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:07,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 22:44:07,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:07,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:07,681 INFO L85 PathProgramCache]: Analyzing trace with hash 811022806, now seen corresponding path program 1 times [2022-10-15 22:44:07,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:07,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875188278] [2022-10-15 22:44:07,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:07,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:07,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:07,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875188278] [2022-10-15 22:44:07,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875188278] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:07,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:07,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:44:07,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281831354] [2022-10-15 22:44:07,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:07,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:44:07,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:07,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:44:07,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:44:07,808 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:07,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:07,915 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2022-10-15 22:44:07,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:44:07,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-15 22:44:07,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:07,917 INFO L225 Difference]: With dead ends: 74 [2022-10-15 22:44:07,918 INFO L226 Difference]: Without dead ends: 72 [2022-10-15 22:44:07,918 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 [2022-10-15 22:44:07,920 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 36 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:07,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 64 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:07,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-10-15 22:44:07,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 51. [2022-10-15 22:44:07,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 50 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:07,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2022-10-15 22:44:07,935 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 12 [2022-10-15 22:44:07,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:07,936 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2022-10-15 22:44:07,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:07,936 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2022-10-15 22:44:07,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 22:44:07,944 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:07,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:07,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 22:44:07,945 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:07,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:07,946 INFO L85 PathProgramCache]: Analyzing trace with hash -628096720, now seen corresponding path program 1 times [2022-10-15 22:44:07,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:07,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13800232] [2022-10-15 22:44:07,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:07,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:08,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:08,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:08,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13800232] [2022-10-15 22:44:08,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13800232] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:08,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:08,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:44:08,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656326826] [2022-10-15 22:44:08,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:08,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:44:08,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:08,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:44:08,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:44:08,028 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) [2022-10-15 22:44:08,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:08,105 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2022-10-15 22:44:08,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:44:08,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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 [2022-10-15 22:44:08,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:08,107 INFO L225 Difference]: With dead ends: 61 [2022-10-15 22:44:08,107 INFO L226 Difference]: Without dead ends: 59 [2022-10-15 22:44:08,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:44:08,110 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 15 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:08,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 44 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:08,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-15 22:44:08,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 52. [2022-10-15 22:44:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 51 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:08,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2022-10-15 22:44:08,127 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 13 [2022-10-15 22:44:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:08,130 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-10-15 22:44:08,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) [2022-10-15 22:44:08,131 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2022-10-15 22:44:08,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 22:44:08,131 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:08,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:08,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 22:44:08,132 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:08,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:08,133 INFO L85 PathProgramCache]: Analyzing trace with hash 2003838232, now seen corresponding path program 1 times [2022-10-15 22:44:08,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:08,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271646877] [2022-10-15 22:44:08,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:08,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:08,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:08,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271646877] [2022-10-15 22:44:08,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271646877] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:08,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:08,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:44:08,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510766188] [2022-10-15 22:44:08,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:08,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:44:08,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:08,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:44:08,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:44:08,179 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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) [2022-10-15 22:44:08,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:08,239 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2022-10-15 22:44:08,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:44:08,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-15 22:44:08,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:08,241 INFO L225 Difference]: With dead ends: 61 [2022-10-15 22:44:08,241 INFO L226 Difference]: Without dead ends: 59 [2022-10-15 22:44:08,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:44:08,243 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:08,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 46 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:08,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-15 22:44:08,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2022-10-15 22:44:08,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 52 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:08,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2022-10-15 22:44:08,262 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 14 [2022-10-15 22:44:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:08,263 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2022-10-15 22:44:08,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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) [2022-10-15 22:44:08,264 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2022-10-15 22:44:08,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 22:44:08,267 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:08,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:08,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 22:44:08,268 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:08,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:08,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1989443122, now seen corresponding path program 1 times [2022-10-15 22:44:08,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:08,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019483740] [2022-10-15 22:44:08,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:08,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:08,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:08,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019483740] [2022-10-15 22:44:08,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019483740] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:08,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:08,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:44:08,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625313519] [2022-10-15 22:44:08,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:08,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:44:08,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:08,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:44:08,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:44:08,349 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:08,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:08,481 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2022-10-15 22:44:08,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:44:08,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-15 22:44:08,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:08,482 INFO L225 Difference]: With dead ends: 59 [2022-10-15 22:44:08,482 INFO L226 Difference]: Without dead ends: 58 [2022-10-15 22:44:08,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:44:08,485 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 28 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:08,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 54 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-15 22:44:08,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53. [2022-10-15 22:44:08,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 52 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:08,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2022-10-15 22:44:08,493 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 15 [2022-10-15 22:44:08,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:08,494 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2022-10-15 22:44:08,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2022-10-15 22:44:08,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 22:44:08,495 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:08,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:08,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 22:44:08,496 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:08,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:08,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1543194714, now seen corresponding path program 1 times [2022-10-15 22:44:08,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:08,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278735994] [2022-10-15 22:44:08,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:08,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:08,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:08,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278735994] [2022-10-15 22:44:08,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278735994] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:08,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:08,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:44:08,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810123220] [2022-10-15 22:44:08,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:08,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:44:08,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:08,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:44:08,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:44:08,593 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:08,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:08,782 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2022-10-15 22:44:08,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:44:08,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-15 22:44:08,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:08,785 INFO L225 Difference]: With dead ends: 58 [2022-10-15 22:44:08,785 INFO L226 Difference]: Without dead ends: 57 [2022-10-15 22:44:08,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:44:08,787 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 24 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:08,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 55 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:44:08,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-15 22:44:08,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2022-10-15 22:44:08,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 52 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:08,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2022-10-15 22:44:08,795 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 16 [2022-10-15 22:44:08,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:08,795 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2022-10-15 22:44:08,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:08,796 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2022-10-15 22:44:08,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 22:44:08,796 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:08,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:08,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 22:44:08,797 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:08,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:08,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1675011384, now seen corresponding path program 1 times [2022-10-15 22:44:08,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:08,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780515792] [2022-10-15 22:44:08,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:08,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:08,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:08,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780515792] [2022-10-15 22:44:08,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780515792] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:08,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:08,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:44:08,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592299501] [2022-10-15 22:44:08,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:08,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:44:08,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:08,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:44:08,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:44:08,865 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:08,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:08,972 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2022-10-15 22:44:08,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:44:08,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-15 22:44:08,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:08,973 INFO L225 Difference]: With dead ends: 56 [2022-10-15 22:44:08,974 INFO L226 Difference]: Without dead ends: 55 [2022-10-15 22:44:08,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:44:08,975 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 19 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:08,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 57 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:08,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-15 22:44:08,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2022-10-15 22:44:08,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 53 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:08,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2022-10-15 22:44:08,983 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 21 [2022-10-15 22:44:08,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:08,983 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2022-10-15 22:44:08,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:08,984 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2022-10-15 22:44:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 22:44:08,985 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:08,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:08,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 22:44:08,985 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:08,986 INFO L85 PathProgramCache]: Analyzing trace with hash 385745440, now seen corresponding path program 1 times [2022-10-15 22:44:08,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:08,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062700343] [2022-10-15 22:44:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:08,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:09,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:09,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062700343] [2022-10-15 22:44:09,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062700343] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:09,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:09,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:44:09,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334517604] [2022-10-15 22:44:09,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:09,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:44:09,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:09,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:44:09,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:44:09,052 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2022-10-15 22:44:09,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:09,151 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2022-10-15 22:44:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:44:09,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-15 22:44:09,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:09,153 INFO L225 Difference]: With dead ends: 56 [2022-10-15 22:44:09,153 INFO L226 Difference]: Without dead ends: 55 [2022-10-15 22:44:09,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:44:09,155 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 17 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:09,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 59 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-15 22:44:09,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-10-15 22:44:09,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 54 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2022-10-15 22:44:09,162 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 22 [2022-10-15 22:44:09,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:09,162 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2022-10-15 22:44:09,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2022-10-15 22:44:09,163 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2022-10-15 22:44:09,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 22:44:09,163 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:09,164 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:09,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 22:44:09,164 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:09,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:09,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1334182178, now seen corresponding path program 1 times [2022-10-15 22:44:09,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:09,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299221482] [2022-10-15 22:44:09,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:09,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:09,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:09,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299221482] [2022-10-15 22:44:09,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299221482] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:09,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485684582] [2022-10-15 22:44:09,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:09,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:09,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:09,261 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) [2022-10-15 22:44:09,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 22:44:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:09,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 22:44:09,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:09,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:09,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:09,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485684582] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:09,819 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:09,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 17 [2022-10-15 22:44:09,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480114033] [2022-10-15 22:44:09,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:09,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 22:44:09,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:09,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 22:44:09,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-10-15 22:44:09,822 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 18 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:10,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:10,286 INFO L93 Difference]: Finished difference Result 106 states and 109 transitions. [2022-10-15 22:44:10,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-15 22:44:10,287 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-15 22:44:10,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:10,288 INFO L225 Difference]: With dead ends: 106 [2022-10-15 22:44:10,288 INFO L226 Difference]: Without dead ends: 104 [2022-10-15 22:44:10,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2022-10-15 22:44:10,290 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 199 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:10,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 140 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:44:10,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-10-15 22:44:10,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 56. [2022-10-15 22:44:10,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 55 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) [2022-10-15 22:44:10,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2022-10-15 22:44:10,296 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 24 [2022-10-15 22:44:10,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:10,309 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2022-10-15 22:44:10,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:10,310 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2022-10-15 22:44:10,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 22:44:10,310 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:10,311 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:10,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:10,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 22:44:10,515 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:10,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:10,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1590025382, now seen corresponding path program 1 times [2022-10-15 22:44:10,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:10,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465061085] [2022-10-15 22:44:10,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:10,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:10,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:10,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:10,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465061085] [2022-10-15 22:44:10,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465061085] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:10,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970703738] [2022-10-15 22:44:10,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:10,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:10,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:10,589 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) [2022-10-15 22:44:10,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 22:44:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:10,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 22:44:10,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:10,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:10,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:10,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:10,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970703738] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:10,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:10,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-15 22:44:10,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221269466] [2022-10-15 22:44:10,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:10,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 22:44:10,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:10,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 22:44:10,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-10-15 22:44:10,798 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 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) [2022-10-15 22:44:11,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:11,033 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2022-10-15 22:44:11,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 22:44:11,034 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 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 25 [2022-10-15 22:44:11,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:11,035 INFO L225 Difference]: With dead ends: 72 [2022-10-15 22:44:11,035 INFO L226 Difference]: Without dead ends: 70 [2022-10-15 22:44:11,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2022-10-15 22:44:11,036 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 84 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:11,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 137 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:11,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-15 22:44:11,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 58. [2022-10-15 22:44:11,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 57 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) [2022-10-15 22:44:11,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2022-10-15 22:44:11,042 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 25 [2022-10-15 22:44:11,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:11,042 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2022-10-15 22:44:11,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 13 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) [2022-10-15 22:44:11,043 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2022-10-15 22:44:11,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-15 22:44:11,044 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:11,044 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:11,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:11,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-15 22:44:11,258 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:11,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:11,259 INFO L85 PathProgramCache]: Analyzing trace with hash 748214054, now seen corresponding path program 1 times [2022-10-15 22:44:11,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:11,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538743204] [2022-10-15 22:44:11,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:11,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:11,340 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:11,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:11,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538743204] [2022-10-15 22:44:11,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538743204] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:11,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580070884] [2022-10-15 22:44:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:11,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:11,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:11,342 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) [2022-10-15 22:44:11,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 22:44:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:11,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 22:44:11,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:11,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:11,566 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:11,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580070884] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:11,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:11,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-10-15 22:44:11,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901372290] [2022-10-15 22:44:11,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:11,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 22:44:11,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:11,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 22:44:11,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-10-15 22:44:11,572 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 14 states, 13 states have (on average 5.0) internal successors, (65), 14 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:11,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:11,828 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2022-10-15 22:44:11,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 22:44:11,829 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.0) internal successors, (65), 14 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-15 22:44:11,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:11,829 INFO L225 Difference]: With dead ends: 88 [2022-10-15 22:44:11,830 INFO L226 Difference]: Without dead ends: 86 [2022-10-15 22:44:11,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2022-10-15 22:44:11,831 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 115 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:11,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 91 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:44:11,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-15 22:44:11,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 65. [2022-10-15 22:44:11,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 64 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:11,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2022-10-15 22:44:11,838 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 28 [2022-10-15 22:44:11,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:11,839 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2022-10-15 22:44:11,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.0) internal successors, (65), 14 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:11,839 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2022-10-15 22:44:11,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-15 22:44:11,840 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:11,840 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:11,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:12,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:12,055 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:12,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:12,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1719799262, now seen corresponding path program 1 times [2022-10-15 22:44:12,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:12,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279434339] [2022-10-15 22:44:12,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:12,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:12,157 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:12,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:12,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279434339] [2022-10-15 22:44:12,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279434339] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:12,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359091832] [2022-10-15 22:44:12,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:12,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:12,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:12,160 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) [2022-10-15 22:44:12,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 22:44:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:12,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 22:44:12,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:12,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:12,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359091832] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:12,470 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:12,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2022-10-15 22:44:12,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511031994] [2022-10-15 22:44:12,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:12,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 22:44:12,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:12,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 22:44:12,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-10-15 22:44:12,473 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand has 18 states, 17 states have (on average 4.823529411764706) internal successors, (82), 18 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:12,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:12,823 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2022-10-15 22:44:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 22:44:12,823 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.823529411764706) internal successors, (82), 18 states have internal predecessors, (82), 0 states have call successors, (0), 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 [2022-10-15 22:44:12,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:12,824 INFO L225 Difference]: With dead ends: 87 [2022-10-15 22:44:12,824 INFO L226 Difference]: Without dead ends: 85 [2022-10-15 22:44:12,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=627, Unknown=0, NotChecked=0, Total=812 [2022-10-15 22:44:12,826 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 172 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:12,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 98 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:44:12,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-15 22:44:12,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 66. [2022-10-15 22:44:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 65 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:12,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2022-10-15 22:44:12,832 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 29 [2022-10-15 22:44:12,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:12,833 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2022-10-15 22:44:12,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.823529411764706) internal successors, (82), 18 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:12,833 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2022-10-15 22:44:12,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 22:44:12,834 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:12,834 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:12,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:13,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:13,050 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:13,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:13,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1774169640, now seen corresponding path program 1 times [2022-10-15 22:44:13,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:13,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37945792] [2022-10-15 22:44:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:13,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:13,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:13,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:13,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37945792] [2022-10-15 22:44:13,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37945792] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:13,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448302019] [2022-10-15 22:44:13,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:13,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:13,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:13,154 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) [2022-10-15 22:44:13,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 22:44:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:13,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 22:44:13,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:13,294 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:13,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:13,374 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:13,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448302019] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:13,374 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:13,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-15 22:44:13,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562467511] [2022-10-15 22:44:13,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:13,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 22:44:13,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:13,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 22:44:13,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-15 22:44:13,376 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:13,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:13,548 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2022-10-15 22:44:13,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 22:44:13,549 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-15 22:44:13,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:13,550 INFO L225 Difference]: With dead ends: 75 [2022-10-15 22:44:13,550 INFO L226 Difference]: Without dead ends: 73 [2022-10-15 22:44:13,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-10-15 22:44:13,551 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 89 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:13,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 100 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:44:13,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-15 22:44:13,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 65. [2022-10-15 22:44:13,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 64 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:13,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2022-10-15 22:44:13,557 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 30 [2022-10-15 22:44:13,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:13,558 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2022-10-15 22:44:13,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:13,558 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2022-10-15 22:44:13,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-15 22:44:13,559 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:13,559 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:13,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:13,773 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,SelfDestructingSolverStorable14 [2022-10-15 22:44:13,774 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:13,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:13,775 INFO L85 PathProgramCache]: Analyzing trace with hash -835315936, now seen corresponding path program 1 times [2022-10-15 22:44:13,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:13,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109404496] [2022-10-15 22:44:13,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:13,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:13,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:13,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109404496] [2022-10-15 22:44:13,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109404496] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:13,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788984528] [2022-10-15 22:44:13,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:13,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:13,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:13,888 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) [2022-10-15 22:44:13,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 22:44:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:13,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 22:44:13,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:14,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:14,160 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:14,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788984528] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:14,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:14,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2022-10-15 22:44:14,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666082366] [2022-10-15 22:44:14,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:14,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-15 22:44:14,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:14,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-15 22:44:14,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-10-15 22:44:14,163 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:14,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:14,443 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2022-10-15 22:44:14,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 22:44:14,444 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-15 22:44:14,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:14,445 INFO L225 Difference]: With dead ends: 74 [2022-10-15 22:44:14,445 INFO L226 Difference]: Without dead ends: 72 [2022-10-15 22:44:14,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2022-10-15 22:44:14,446 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 81 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:14,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 89 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:44:14,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-10-15 22:44:14,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2022-10-15 22:44:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 63 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2022-10-15 22:44:14,452 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 31 [2022-10-15 22:44:14,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:14,453 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2022-10-15 22:44:14,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2022-10-15 22:44:14,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 22:44:14,454 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:14,454 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:14,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:14,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-15 22:44:14,669 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:14,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:14,670 INFO L85 PathProgramCache]: Analyzing trace with hash -124990166, now seen corresponding path program 1 times [2022-10-15 22:44:14,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:14,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918988339] [2022-10-15 22:44:14,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:14,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:14,796 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:14,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:14,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918988339] [2022-10-15 22:44:14,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918988339] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:14,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861816118] [2022-10-15 22:44:14,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:14,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:14,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:14,798 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) [2022-10-15 22:44:14,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 22:44:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:14,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 22:44:14,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:15,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:15,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861816118] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:15,288 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:15,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2022-10-15 22:44:15,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877701429] [2022-10-15 22:44:15,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:15,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-15 22:44:15,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:15,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-15 22:44:15,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-10-15 22:44:15,290 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand has 21 states, 20 states have (on average 4.55) internal successors, (91), 21 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:16,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:16,006 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2022-10-15 22:44:16,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 22:44:16,007 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.55) internal successors, (91), 21 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-15 22:44:16,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:16,008 INFO L225 Difference]: With dead ends: 72 [2022-10-15 22:44:16,008 INFO L226 Difference]: Without dead ends: 71 [2022-10-15 22:44:16,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=157, Invalid=835, Unknown=0, NotChecked=0, Total=992 [2022-10-15 22:44:16,010 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 119 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:16,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 72 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 22:44:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-15 22:44:16,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 64. [2022-10-15 22:44:16,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 52 states have (on average 1.25) internal successors, (65), 63 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:16,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2022-10-15 22:44:16,016 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 32 [2022-10-15 22:44:16,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:16,017 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2022-10-15 22:44:16,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.55) internal successors, (91), 21 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:16,017 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2022-10-15 22:44:16,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-15 22:44:16,018 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:16,018 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:16,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-15 22:44:16,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:16,232 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:16,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:16,233 INFO L85 PathProgramCache]: Analyzing trace with hash 420272226, now seen corresponding path program 1 times [2022-10-15 22:44:16,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:16,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685289981] [2022-10-15 22:44:16,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:16,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:16,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:16,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685289981] [2022-10-15 22:44:16,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685289981] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:16,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353216504] [2022-10-15 22:44:16,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:16,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:16,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:16,316 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) [2022-10-15 22:44:16,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 22:44:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:16,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 22:44:16,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:16,570 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:16,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:16,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353216504] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:16,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:16,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2022-10-15 22:44:16,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923853651] [2022-10-15 22:44:16,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:16,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-15 22:44:16,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:16,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-15 22:44:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-10-15 22:44:16,730 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 19 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:17,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:17,158 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2022-10-15 22:44:17,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 22:44:17,159 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 19 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-15 22:44:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:17,160 INFO L225 Difference]: With dead ends: 71 [2022-10-15 22:44:17,160 INFO L226 Difference]: Without dead ends: 70 [2022-10-15 22:44:17,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2022-10-15 22:44:17,161 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 114 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:17,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 86 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 22:44:17,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-15 22:44:17,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 64. [2022-10-15 22:44:17,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 63 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:17,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2022-10-15 22:44:17,182 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 33 [2022-10-15 22:44:17,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:17,182 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2022-10-15 22:44:17,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 19 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:17,182 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2022-10-15 22:44:17,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-15 22:44:17,183 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:17,183 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:17,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:17,398 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,SelfDestructingSolverStorable17 [2022-10-15 22:44:17,399 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:17,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:17,400 INFO L85 PathProgramCache]: Analyzing trace with hash -253371856, now seen corresponding path program 1 times [2022-10-15 22:44:17,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:17,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432877310] [2022-10-15 22:44:17,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:17,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:17,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:17,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432877310] [2022-10-15 22:44:17,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432877310] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:17,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887517937] [2022-10-15 22:44:17,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:17,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:17,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:17,502 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) [2022-10-15 22:44:17,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 22:44:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:17,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 22:44:17,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:18,114 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:18,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:18,277 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:18,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887517937] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:18,279 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:18,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2022-10-15 22:44:18,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049427736] [2022-10-15 22:44:18,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:18,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-15 22:44:18,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:18,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-15 22:44:18,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-10-15 22:44:18,284 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 19 states, 18 states have (on average 5.944444444444445) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:18,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:18,767 INFO L93 Difference]: Finished difference Result 96 states and 97 transitions. [2022-10-15 22:44:18,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-15 22:44:18,768 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.944444444444445) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-15 22:44:18,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:18,768 INFO L225 Difference]: With dead ends: 96 [2022-10-15 22:44:18,768 INFO L226 Difference]: Without dead ends: 95 [2022-10-15 22:44:18,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2022-10-15 22:44:18,770 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 89 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:18,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 53 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 363 Invalid, 0 Unknown, 57 Unchecked, 0.2s Time] [2022-10-15 22:44:18,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-10-15 22:44:18,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2022-10-15 22:44:18,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 83 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 95 transitions. [2022-10-15 22:44:18,778 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 95 transitions. Word has length 38 [2022-10-15 22:44:18,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:18,778 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 95 transitions. [2022-10-15 22:44:18,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.944444444444445) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:18,779 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 95 transitions. [2022-10-15 22:44:18,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-15 22:44:18,779 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:18,779 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:18,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:18,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:18,994 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:18,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:18,995 INFO L85 PathProgramCache]: Analyzing trace with hash 735407144, now seen corresponding path program 1 times [2022-10-15 22:44:18,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:18,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505227161] [2022-10-15 22:44:18,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:18,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:19,127 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:19,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:19,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505227161] [2022-10-15 22:44:19,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505227161] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:19,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022209771] [2022-10-15 22:44:19,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:19,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:19,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:19,129 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) [2022-10-15 22:44:19,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 22:44:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:19,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-15 22:44:19,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:19,858 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:19,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:20,094 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:20,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022209771] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:20,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:20,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2022-10-15 22:44:20,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825679574] [2022-10-15 22:44:20,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:20,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-15 22:44:20,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:20,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-15 22:44:20,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2022-10-15 22:44:20,100 INFO L87 Difference]: Start difference. First operand 84 states and 95 transitions. Second operand has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:20,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:20,241 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2022-10-15 22:44:20,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 22:44:20,241 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 0 states have call successors, (0), 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 39 [2022-10-15 22:44:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:20,242 INFO L225 Difference]: With dead ends: 85 [2022-10-15 22:44:20,242 INFO L226 Difference]: Without dead ends: 84 [2022-10-15 22:44:20,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2022-10-15 22:44:20,244 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:20,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 74 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 216 Invalid, 0 Unknown, 86 Unchecked, 0.1s Time] [2022-10-15 22:44:20,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-10-15 22:44:20,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-10-15 22:44:20,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 72 states have (on average 1.3055555555555556) internal successors, (94), 83 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2022-10-15 22:44:20,253 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 39 [2022-10-15 22:44:20,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:20,253 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2022-10-15 22:44:20,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2022-10-15 22:44:20,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-15 22:44:20,256 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:20,256 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:20,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:20,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:20,468 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:20,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:20,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1943336662, now seen corresponding path program 2 times [2022-10-15 22:44:20,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:20,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714821392] [2022-10-15 22:44:20,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:20,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:20,632 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:20,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:20,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714821392] [2022-10-15 22:44:20,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714821392] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:20,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120083758] [2022-10-15 22:44:20,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 22:44:20,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:20,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:20,634 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) [2022-10-15 22:44:20,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 22:44:20,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 22:44:20,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:44:20,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 22:44:20,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:21,149 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:21,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:21,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120083758] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:21,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:21,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2022-10-15 22:44:21,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649731806] [2022-10-15 22:44:21,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:21,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-15 22:44:21,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:21,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-15 22:44:21,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2022-10-15 22:44:21,457 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 28 states, 27 states have (on average 4.333333333333333) internal successors, (117), 28 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:22,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:22,792 INFO L93 Difference]: Finished difference Result 98 states and 99 transitions. [2022-10-15 22:44:22,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-15 22:44:22,792 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.333333333333333) internal successors, (117), 28 states have internal predecessors, (117), 0 states have call successors, (0), 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 41 [2022-10-15 22:44:22,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:22,794 INFO L225 Difference]: With dead ends: 98 [2022-10-15 22:44:22,794 INFO L226 Difference]: Without dead ends: 97 [2022-10-15 22:44:22,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=289, Invalid=1967, Unknown=0, NotChecked=0, Total=2256 [2022-10-15 22:44:22,797 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 117 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:22,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 84 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 651 Invalid, 0 Unknown, 13 Unchecked, 0.5s Time] [2022-10-15 22:44:22,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-15 22:44:22,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 87. [2022-10-15 22:44:22,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 75 states have (on average 1.2933333333333332) internal successors, (97), 86 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:22,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2022-10-15 22:44:22,805 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 41 [2022-10-15 22:44:22,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:22,805 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2022-10-15 22:44:22,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.333333333333333) internal successors, (117), 28 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2022-10-15 22:44:22,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 22:44:22,806 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:22,807 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:22,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-15 22:44:23,015 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,SelfDestructingSolverStorable20 [2022-10-15 22:44:23,016 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:23,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2078255212, now seen corresponding path program 1 times [2022-10-15 22:44:23,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:23,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762033961] [2022-10-15 22:44:23,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:23,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 22:44:23,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:23,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762033961] [2022-10-15 22:44:23,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762033961] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:44:23,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:44:23,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:44:23,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974123619] [2022-10-15 22:44:23,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:44:23,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:44:23,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:23,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:44:23,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:44:23,069 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:23,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:23,090 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2022-10-15 22:44:23,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:44:23,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-15 22:44:23,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:23,091 INFO L225 Difference]: With dead ends: 87 [2022-10-15 22:44:23,091 INFO L226 Difference]: Without dead ends: 86 [2022-10-15 22:44:23,092 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 [2022-10-15 22:44:23,093 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 24 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 51 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 [2022-10-15 22:44:23,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 51 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:44:23,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-15 22:44:23,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-10-15 22:44:23,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.2666666666666666) internal successors, (95), 85 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:23,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2022-10-15 22:44:23,104 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 44 [2022-10-15 22:44:23,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:23,105 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2022-10-15 22:44:23,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:23,106 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2022-10-15 22:44:23,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-15 22:44:23,107 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:23,108 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:23,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-15 22:44:23,108 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:23,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:23,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1402066, now seen corresponding path program 2 times [2022-10-15 22:44:23,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:23,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285795489] [2022-10-15 22:44:23,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:23,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:23,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:23,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285795489] [2022-10-15 22:44:23,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285795489] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:23,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779676493] [2022-10-15 22:44:23,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 22:44:23,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:23,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:23,285 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) [2022-10-15 22:44:23,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-15 22:44:23,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 22:44:23,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:44:23,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 22:44:23,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:23,618 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:23,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:23,890 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:23,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779676493] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:23,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:23,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2022-10-15 22:44:23,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556929808] [2022-10-15 22:44:23,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:23,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-15 22:44:23,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:23,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-15 22:44:23,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2022-10-15 22:44:23,893 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand has 26 states, 25 states have (on average 4.68) internal successors, (117), 26 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:24,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:24,967 INFO L93 Difference]: Finished difference Result 109 states and 110 transitions. [2022-10-15 22:44:24,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-15 22:44:24,967 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.68) internal successors, (117), 26 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-10-15 22:44:24,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:24,968 INFO L225 Difference]: With dead ends: 109 [2022-10-15 22:44:24,969 INFO L226 Difference]: Without dead ends: 106 [2022-10-15 22:44:24,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=329, Invalid=1741, Unknown=0, NotChecked=0, Total=2070 [2022-10-15 22:44:24,972 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 271 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:24,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 64 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 22:44:24,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-15 22:44:24,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 90. [2022-10-15 22:44:24,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 89 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2022-10-15 22:44:24,979 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 45 [2022-10-15 22:44:24,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:24,979 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2022-10-15 22:44:24,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.68) internal successors, (117), 26 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:24,980 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2022-10-15 22:44:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-15 22:44:24,980 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:24,980 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:25,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:25,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-15 22:44:25,195 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:25,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash -43463978, now seen corresponding path program 2 times [2022-10-15 22:44:25,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:25,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960874803] [2022-10-15 22:44:25,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:25,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:25,348 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:25,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:25,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960874803] [2022-10-15 22:44:25,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960874803] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:25,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777623065] [2022-10-15 22:44:25,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 22:44:25,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:25,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:25,350 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) [2022-10-15 22:44:25,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-15 22:44:25,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 22:44:25,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:44:25,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-15 22:44:25,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:25,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:25,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777623065] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:25,941 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:25,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 26 [2022-10-15 22:44:25,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139441035] [2022-10-15 22:44:25,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:25,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-15 22:44:25,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:25,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-15 22:44:25,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2022-10-15 22:44:25,943 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 27 states, 26 states have (on average 5.115384615384615) internal successors, (133), 27 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:27,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:27,249 INFO L93 Difference]: Finished difference Result 105 states and 106 transitions. [2022-10-15 22:44:27,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-15 22:44:27,249 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.115384615384615) internal successors, (133), 27 states have internal predecessors, (133), 0 states have call successors, (0), 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 46 [2022-10-15 22:44:27,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:27,250 INFO L225 Difference]: With dead ends: 105 [2022-10-15 22:44:27,251 INFO L226 Difference]: Without dead ends: 102 [2022-10-15 22:44:27,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=341, Invalid=1729, Unknown=0, NotChecked=0, Total=2070 [2022-10-15 22:44:27,254 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 314 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:27,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 102 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 22:44:27,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-10-15 22:44:27,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 91. [2022-10-15 22:44:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.175) internal successors, (94), 90 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:27,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 94 transitions. [2022-10-15 22:44:27,263 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 94 transitions. Word has length 46 [2022-10-15 22:44:27,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:27,263 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 94 transitions. [2022-10-15 22:44:27,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.115384615384615) internal successors, (133), 27 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:27,263 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 94 transitions. [2022-10-15 22:44:27,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 22:44:27,264 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:27,264 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:27,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:27,477 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,SelfDestructingSolverStorable23 [2022-10-15 22:44:27,477 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:27,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:27,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1347383248, now seen corresponding path program 2 times [2022-10-15 22:44:27,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:27,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474717437] [2022-10-15 22:44:27,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:27,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:27,607 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:27,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:27,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474717437] [2022-10-15 22:44:27,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474717437] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:27,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577710468] [2022-10-15 22:44:27,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 22:44:27,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:27,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:27,610 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) [2022-10-15 22:44:27,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-15 22:44:27,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 22:44:27,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:44:27,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 22:44:27,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:28,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:28,303 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:28,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577710468] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:28,303 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:28,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-10-15 22:44:28,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869791036] [2022-10-15 22:44:28,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:28,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-15 22:44:28,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:28,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-15 22:44:28,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2022-10-15 22:44:28,305 INFO L87 Difference]: Start difference. First operand 91 states and 94 transitions. Second operand has 21 states, 20 states have (on average 6.3) internal successors, (126), 21 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) [2022-10-15 22:44:28,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:28,827 INFO L93 Difference]: Finished difference Result 95 states and 96 transitions. [2022-10-15 22:44:28,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-15 22:44:28,827 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.3) internal successors, (126), 21 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 47 [2022-10-15 22:44:28,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:28,828 INFO L225 Difference]: With dead ends: 95 [2022-10-15 22:44:28,829 INFO L226 Difference]: Without dead ends: 94 [2022-10-15 22:44:28,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=977, Unknown=0, NotChecked=0, Total=1190 [2022-10-15 22:44:28,831 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 108 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:28,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 119 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 361 Invalid, 0 Unknown, 42 Unchecked, 0.2s Time] [2022-10-15 22:44:28,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-15 22:44:28,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2022-10-15 22:44:28,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.1604938271604939) internal successors, (94), 91 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:28,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 94 transitions. [2022-10-15 22:44:28,839 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 94 transitions. Word has length 47 [2022-10-15 22:44:28,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:28,840 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 94 transitions. [2022-10-15 22:44:28,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.3) internal successors, (126), 21 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) [2022-10-15 22:44:28,840 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 94 transitions. [2022-10-15 22:44:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-15 22:44:28,840 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:28,841 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:28,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:29,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:29,055 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:29,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:29,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1180792344, now seen corresponding path program 2 times [2022-10-15 22:44:29,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:29,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129837797] [2022-10-15 22:44:29,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:29,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:29,288 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:29,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:29,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129837797] [2022-10-15 22:44:29,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129837797] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:29,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378051926] [2022-10-15 22:44:29,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 22:44:29,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:29,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:29,291 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) [2022-10-15 22:44:29,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-15 22:44:29,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 22:44:29,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:44:29,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 22:44:29,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:29,845 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:29,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:44:30,110 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:30,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378051926] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:44:30,110 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:44:30,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 26 [2022-10-15 22:44:30,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687865448] [2022-10-15 22:44:30,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:44:30,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-15 22:44:30,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:44:30,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-15 22:44:30,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2022-10-15 22:44:30,113 INFO L87 Difference]: Start difference. First operand 92 states and 94 transitions. Second operand has 27 states, 26 states have (on average 5.346153846153846) internal successors, (139), 27 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:31,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:44:31,242 INFO L93 Difference]: Finished difference Result 95 states and 96 transitions. [2022-10-15 22:44:31,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-15 22:44:31,242 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.346153846153846) internal successors, (139), 27 states have internal predecessors, (139), 0 states have call successors, (0), 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 48 [2022-10-15 22:44:31,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:44:31,243 INFO L225 Difference]: With dead ends: 95 [2022-10-15 22:44:31,244 INFO L226 Difference]: Without dead ends: 93 [2022-10-15 22:44:31,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=215, Invalid=1425, Unknown=0, NotChecked=0, Total=1640 [2022-10-15 22:44:31,246 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 159 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 85 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 22:44:31,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 127 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 551 Invalid, 0 Unknown, 85 Unchecked, 0.4s Time] [2022-10-15 22:44:31,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-15 22:44:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-10-15 22:44:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.1341463414634145) internal successors, (93), 92 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:31,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2022-10-15 22:44:31,256 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 48 [2022-10-15 22:44:31,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:44:31,256 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2022-10-15 22:44:31,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.346153846153846) internal successors, (139), 27 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:44:31,256 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2022-10-15 22:44:31,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 22:44:31,257 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:44:31,257 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-15 22:44:31,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-15 22:44:31,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-15 22:44:31,471 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 22:44:31,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:44:31,472 INFO L85 PathProgramCache]: Analyzing trace with hash 908844586, now seen corresponding path program 2 times [2022-10-15 22:44:31,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:44:31,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578256774] [2022-10-15 22:44:31,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:44:31,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:44:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:44:31,747 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:31,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:44:31,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578256774] [2022-10-15 22:44:31,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578256774] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:44:31,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143001052] [2022-10-15 22:44:31,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 22:44:31,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:44:31,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:44:31,750 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) [2022-10-15 22:44:31,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-15 22:44:31,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 22:44:31,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:44:31,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-15 22:44:31,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:44:47,418 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:44:47,418 INFO L328 TraceCheckSpWp]: Computing backward predicates...