/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/Mysore-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:50:42,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:50:42,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:50:42,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 17:50:42,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:50:42,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:50:42,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:50:42,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:50:42,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:50:42,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:50:42,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:50:42,501 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:50:42,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:50:42,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:50:42,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:50:42,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:50:42,505 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:50:42,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:50:42,507 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:50:42,507 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:50:42,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:50:42,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:50:42,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:50:42,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:50:42,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:50:42,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:50:42,508 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:50:42,508 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:50:42,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:50:42,509 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:50:42,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:50:42,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:50:42,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:50:42,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:50:42,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:50:42,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:50:42,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:50:42,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:50:42,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:50:42,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:50:42,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:50:42,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:50:42,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:50:42,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:50:42,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:50:42,931 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:50:42,932 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:50:42,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Mysore-3.c [2022-10-16 17:50:43,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97ca6b5f/a10e9c71184b4a63bcb3a177d09dee6e/FLAGb6dd9a70c [2022-10-16 17:50:43,588 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:50:43,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Mysore-3.c [2022-10-16 17:50:43,596 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97ca6b5f/a10e9c71184b4a63bcb3a177d09dee6e/FLAGb6dd9a70c [2022-10-16 17:50:43,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97ca6b5f/a10e9c71184b4a63bcb3a177d09dee6e [2022-10-16 17:50:43,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:50:43,982 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:50:43,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:50:43,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:50:43,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:50:43,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:50:43" (1/1) ... [2022-10-16 17:50:43,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211d89e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:43, skipping insertion in model container [2022-10-16 17:50:43,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:50:43" (1/1) ... [2022-10-16 17:50:44,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:50:44,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:50:44,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:50:44,187 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:50:44,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:50:44,223 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:50:44,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44 WrapperNode [2022-10-16 17:50:44,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:50:44,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:50:44,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:50:44,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:50:44,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (1/1) ... [2022-10-16 17:50:44,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (1/1) ... [2022-10-16 17:50:44,264 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2022-10-16 17:50:44,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:50:44,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:50:44,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:50:44,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:50:44,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (1/1) ... [2022-10-16 17:50:44,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (1/1) ... [2022-10-16 17:50:44,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (1/1) ... [2022-10-16 17:50:44,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (1/1) ... [2022-10-16 17:50:44,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (1/1) ... [2022-10-16 17:50:44,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (1/1) ... [2022-10-16 17:50:44,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (1/1) ... [2022-10-16 17:50:44,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (1/1) ... [2022-10-16 17:50:44,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:50:44,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:50:44,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:50:44,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:50:44,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (1/1) ... [2022-10-16 17:50:44,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:50:44,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:44,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:50:44,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:50:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:50:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:50:44,477 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:50:44,479 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:50:44,638 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:50:44,647 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:50:44,647 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:50:44,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:50:44 BoogieIcfgContainer [2022-10-16 17:50:44,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:50:44,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:50:44,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:50:44,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:50:44,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:50:43" (1/3) ... [2022-10-16 17:50:44,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519241df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:50:44, skipping insertion in model container [2022-10-16 17:50:44,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:44" (2/3) ... [2022-10-16 17:50:44,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519241df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:50:44, skipping insertion in model container [2022-10-16 17:50:44,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:50:44" (3/3) ... [2022-10-16 17:50:44,661 INFO L112 eAbstractionObserver]: Analyzing ICFG Mysore-3.c [2022-10-16 17:50:44,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:50:44,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 17:50:44,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:50:44,758 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;@1f7f9648, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:50:44,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 17:50:44,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:44,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:50:44,771 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:44,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:50:44,772 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:44,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:44,779 INFO L85 PathProgramCache]: Analyzing trace with hash 889571277, now seen corresponding path program 1 times [2022-10-16 17:50:44,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:44,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116009041] [2022-10-16 17:50:44,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:44,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:45,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:45,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:45,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116009041] [2022-10-16 17:50:45,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116009041] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:50:45,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:50:45,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:50:45,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729881374] [2022-10-16 17:50:45,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:50:45,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:50:45,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:45,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:50:45,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:50:45,228 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:45,350 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2022-10-16 17:50:45,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:50:45,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 17:50:45,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:45,363 INFO L225 Difference]: With dead ends: 55 [2022-10-16 17:50:45,363 INFO L226 Difference]: Without dead ends: 36 [2022-10-16 17:50:45,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:50:45,371 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 41 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:45,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 26 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:50:45,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-16 17:50:45,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 26. [2022-10-16 17:50:45,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.55) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-10-16 17:50:45,412 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 6 [2022-10-16 17:50:45,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:45,413 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-10-16 17:50:45,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,413 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-10-16 17:50:45,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 17:50:45,414 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:45,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:45,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:50:45,418 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:45,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:45,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1806905864, now seen corresponding path program 1 times [2022-10-16 17:50:45,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:45,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059555923] [2022-10-16 17:50:45,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:45,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:45,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:45,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:45,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059555923] [2022-10-16 17:50:45,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059555923] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:50:45,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:50:45,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:50:45,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509325714] [2022-10-16 17:50:45,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:50:45,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:50:45,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:45,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:50:45,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:50:45,475 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. 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) [2022-10-16 17:50:45,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:45,531 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2022-10-16 17:50:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:50:45,532 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 [2022-10-16 17:50:45,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:45,533 INFO L225 Difference]: With dead ends: 30 [2022-10-16 17:50:45,533 INFO L226 Difference]: Without dead ends: 29 [2022-10-16 17:50:45,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:50:45,536 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:45,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 9 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:50:45,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-16 17:50:45,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2022-10-16 17:50:45,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-10-16 17:50:45,547 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 7 [2022-10-16 17:50:45,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:45,548 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-10-16 17:50:45,548 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) [2022-10-16 17:50:45,548 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-10-16 17:50:45,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:50:45,552 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:45,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:45,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:50:45,553 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:45,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:45,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1269749578, now seen corresponding path program 1 times [2022-10-16 17:50:45,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:45,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264946587] [2022-10-16 17:50:45,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:45,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:45,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:45,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264946587] [2022-10-16 17:50:45,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264946587] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:50:45,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:50:45,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:50:45,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528008255] [2022-10-16 17:50:45,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:50:45,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:50:45,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:45,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:50:45,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:50:45,664 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:45,725 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-10-16 17:50:45,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:50:45,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 17:50:45,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:45,727 INFO L225 Difference]: With dead ends: 28 [2022-10-16 17:50:45,727 INFO L226 Difference]: Without dead ends: 27 [2022-10-16 17:50:45,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:50:45,730 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:45,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 17 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:50:45,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-16 17:50:45,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-10-16 17:50:45,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-10-16 17:50:45,738 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 9 [2022-10-16 17:50:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:45,738 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-10-16 17:50:45,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-10-16 17:50:45,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 17:50:45,740 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:45,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:45,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:50:45,740 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:45,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:45,741 INFO L85 PathProgramCache]: Analyzing trace with hash 707531316, now seen corresponding path program 1 times [2022-10-16 17:50:45,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:45,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84283846] [2022-10-16 17:50:45,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:45,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:45,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:45,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:45,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84283846] [2022-10-16 17:50:45,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84283846] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:50:45,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:50:45,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:50:45,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077729268] [2022-10-16 17:50:45,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:50:45,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:50:45,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:45,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:50:45,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:50:45,809 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:45,859 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2022-10-16 17:50:45,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:50:45,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 17:50:45,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:45,861 INFO L225 Difference]: With dead ends: 36 [2022-10-16 17:50:45,861 INFO L226 Difference]: Without dead ends: 35 [2022-10-16 17:50:45,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:50:45,864 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:45,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 16 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:50:45,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-16 17:50:45,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2022-10-16 17:50:45,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.4) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-10-16 17:50:45,872 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 10 [2022-10-16 17:50:45,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:45,873 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-10-16 17:50:45,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,873 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-10-16 17:50:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 17:50:45,874 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:45,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:45,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:50:45,875 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:45,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:45,875 INFO L85 PathProgramCache]: Analyzing trace with hash 458634380, now seen corresponding path program 1 times [2022-10-16 17:50:45,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:45,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327966089] [2022-10-16 17:50:45,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:45,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:45,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:45,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:45,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327966089] [2022-10-16 17:50:45,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327966089] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:50:45,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:50:45,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:50:45,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854135262] [2022-10-16 17:50:45,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:50:45,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:50:45,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:45,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:50:45,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:50:45,916 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:45,935 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-10-16 17:50:45,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:50:45,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 17:50:45,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:45,936 INFO L225 Difference]: With dead ends: 26 [2022-10-16 17:50:45,936 INFO L226 Difference]: Without dead ends: 25 [2022-10-16 17:50:45,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:50:45,939 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:45,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:50:45,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-10-16 17:50:45,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-10-16 17:50:45,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.3) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-10-16 17:50:45,946 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 11 [2022-10-16 17:50:45,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:45,946 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-10-16 17:50:45,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:45,947 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-10-16 17:50:45,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:50:45,947 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:45,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:45,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:50:45,948 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:45,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:45,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1332763958, now seen corresponding path program 1 times [2022-10-16 17:50:45,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:45,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173564476] [2022-10-16 17:50:45,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:45,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:45,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:45,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:45,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173564476] [2022-10-16 17:50:45,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173564476] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:50:45,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:50:45,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:50:45,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234824596] [2022-10-16 17:50:45,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:50:45,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:50:45,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:45,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:50:45,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:50:45,989 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:46,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:46,015 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2022-10-16 17:50:46,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:50:46,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:50:46,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:46,016 INFO L225 Difference]: With dead ends: 26 [2022-10-16 17:50:46,016 INFO L226 Difference]: Without dead ends: 25 [2022-10-16 17:50:46,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:50:46,018 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:46,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:50:46,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-10-16 17:50:46,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-10-16 17:50:46,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.25) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:46,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-10-16 17:50:46,026 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 12 [2022-10-16 17:50:46,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:46,027 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-10-16 17:50:46,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:46,027 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-10-16 17:50:46,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 17:50:46,028 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:46,028 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:46,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:50:46,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:46,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:46,029 INFO L85 PathProgramCache]: Analyzing trace with hash 885911064, now seen corresponding path program 1 times [2022-10-16 17:50:46,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:46,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316800323] [2022-10-16 17:50:46,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:46,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:46,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:46,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:46,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316800323] [2022-10-16 17:50:46,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316800323] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:46,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780300031] [2022-10-16 17:50:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:46,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:46,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:46,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:46,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 17:50:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:46,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:50:46,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:46,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:46,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:46,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780300031] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:46,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:46,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-16 17:50:46,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370426491] [2022-10-16 17:50:46,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:46,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 17:50:46,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:46,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 17:50:46,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-10-16 17:50:46,412 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:46,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:46,553 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-10-16 17:50:46,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:50:46,554 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 17:50:46,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:46,555 INFO L225 Difference]: With dead ends: 25 [2022-10-16 17:50:46,555 INFO L226 Difference]: Without dead ends: 23 [2022-10-16 17:50:46,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=197, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:50:46,557 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 36 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:46,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 10 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:50:46,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-16 17:50:46,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-10-16 17:50:46,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:46,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2022-10-16 17:50:46,565 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 14 [2022-10-16 17:50:46,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:46,566 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2022-10-16 17:50:46,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:46,566 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2022-10-16 17:50:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 17:50:46,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:46,567 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:46,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 17:50:46,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:46,781 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:46,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:46,783 INFO L85 PathProgramCache]: Analyzing trace with hash 957009754, now seen corresponding path program 1 times [2022-10-16 17:50:46,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:46,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102687971] [2022-10-16 17:50:46,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:46,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:46,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:46,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102687971] [2022-10-16 17:50:46,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102687971] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:46,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294896076] [2022-10-16 17:50:46,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:46,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:46,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:46,877 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:46,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 17:50:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:46,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:50:46,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:47,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:47,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:47,092 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:47,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294896076] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:47,093 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:47,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-16 17:50:47,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419616773] [2022-10-16 17:50:47,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:47,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 17:50:47,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:47,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 17:50:47,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-10-16 17:50:47,096 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:47,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:47,244 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2022-10-16 17:50:47,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:50:47,244 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 17:50:47,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:47,245 INFO L225 Difference]: With dead ends: 37 [2022-10-16 17:50:47,246 INFO L226 Difference]: Without dead ends: 36 [2022-10-16 17:50:47,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:50:47,247 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 41 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:47,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 17 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:50:47,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-16 17:50:47,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2022-10-16 17:50:47,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-10-16 17:50:47,256 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 16 [2022-10-16 17:50:47,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:47,257 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-10-16 17:50:47,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:47,257 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-10-16 17:50:47,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 17:50:47,258 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:47,258 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:47,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:47,473 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,SelfDestructingSolverStorable7 [2022-10-16 17:50:47,474 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:47,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:47,476 INFO L85 PathProgramCache]: Analyzing trace with hash 284732198, now seen corresponding path program 1 times [2022-10-16 17:50:47,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:47,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361913060] [2022-10-16 17:50:47,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:47,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:47,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:47,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361913060] [2022-10-16 17:50:47,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361913060] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:47,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437247072] [2022-10-16 17:50:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:47,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:47,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:47,535 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:47,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 17:50:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:47,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:50:47,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:47,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:47,657 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:47,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437247072] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:47,657 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:47,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 7 [2022-10-16 17:50:47,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581324806] [2022-10-16 17:50:47,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:47,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:50:47,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:47,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:50:47,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:50:47,660 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:47,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:47,735 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2022-10-16 17:50:47,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 17:50:47,736 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 17:50:47,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:47,737 INFO L225 Difference]: With dead ends: 47 [2022-10-16 17:50:47,737 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 17:50:47,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:50:47,738 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 17 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:47,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 13 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:50:47,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 17:50:47,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2022-10-16 17:50:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.15) internal successors, (46), 42 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:47,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2022-10-16 17:50:47,747 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 19 [2022-10-16 17:50:47,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:47,747 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2022-10-16 17:50:47,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:47,748 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2022-10-16 17:50:47,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 17:50:47,748 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:47,749 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:47,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:47,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:47,965 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:47,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:47,966 INFO L85 PathProgramCache]: Analyzing trace with hash 236763597, now seen corresponding path program 1 times [2022-10-16 17:50:47,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:47,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584660257] [2022-10-16 17:50:47,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:47,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:48,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:48,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584660257] [2022-10-16 17:50:48,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584660257] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:48,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723434690] [2022-10-16 17:50:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:48,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:48,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:48,049 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:48,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 17:50:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:48,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:50:48,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:48,138 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:48,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:48,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723434690] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:48,205 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:48,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-10-16 17:50:48,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294812201] [2022-10-16 17:50:48,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:48,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 17:50:48,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:48,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 17:50:48,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-10-16 17:50:48,208 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:48,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:48,364 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-10-16 17:50:48,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 17:50:48,365 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 17:50:48,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:48,366 INFO L225 Difference]: With dead ends: 43 [2022-10-16 17:50:48,366 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 17:50:48,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2022-10-16 17:50:48,368 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 54 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:48,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 11 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:50:48,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 17:50:48,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 17:50:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.075) 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) [2022-10-16 17:50:48,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2022-10-16 17:50:48,375 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 20 [2022-10-16 17:50:48,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:48,376 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2022-10-16 17:50:48,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2022-10-16 17:50:48,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 17:50:48,377 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:48,377 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:48,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:48,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:48,593 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:48,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:48,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1604010330, now seen corresponding path program 2 times [2022-10-16 17:50:48,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:48,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004475021] [2022-10-16 17:50:48,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:48,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:48,734 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:48,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:48,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004475021] [2022-10-16 17:50:48,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004475021] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:48,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176302045] [2022-10-16 17:50:48,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:50:48,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:48,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:48,736 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:48,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 17:50:48,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:50:48,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:48,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 17:50:48,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:48,946 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:48,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:49,087 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:49,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176302045] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:49,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:49,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2022-10-16 17:50:49,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144266662] [2022-10-16 17:50:49,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:49,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 17:50:49,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:49,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 17:50:49,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2022-10-16 17:50:49,090 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand has 25 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 25 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:49,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:49,495 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2022-10-16 17:50:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 17:50:49,496 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 25 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 17:50:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:49,497 INFO L225 Difference]: With dead ends: 64 [2022-10-16 17:50:49,497 INFO L226 Difference]: Without dead ends: 63 [2022-10-16 17:50:49,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=495, Invalid=1065, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 17:50:49,499 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 125 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:49,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 22 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:50:49,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-16 17:50:49,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2022-10-16 17:50:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 58 states have (on average 1.0689655172413792) internal successors, (62), 59 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:49,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2022-10-16 17:50:49,509 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 30 [2022-10-16 17:50:49,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:49,510 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2022-10-16 17:50:49,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 25 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:49,510 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2022-10-16 17:50:49,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 17:50:49,511 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:49,511 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:49,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:49,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 17:50:49,725 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:49,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:49,726 INFO L85 PathProgramCache]: Analyzing trace with hash 775143734, now seen corresponding path program 2 times [2022-10-16 17:50:49,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:49,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55256733] [2022-10-16 17:50:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:49,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:49,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:49,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55256733] [2022-10-16 17:50:49,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55256733] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:49,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877258716] [2022-10-16 17:50:49,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:50:49,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:49,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:49,856 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:49,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 17:50:49,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:50:49,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:49,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:50:49,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:49,915 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-10-16 17:50:49,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:50:49,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877258716] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:50:49,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:50:49,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2022-10-16 17:50:49,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880017894] [2022-10-16 17:50:49,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:50:49,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:50:49,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:49,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:50:49,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:50:49,918 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:49,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:49,946 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2022-10-16 17:50:49,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:50:49,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-16 17:50:49,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:49,948 INFO L225 Difference]: With dead ends: 60 [2022-10-16 17:50:49,948 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 17:50:49,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:50:49,949 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:49,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:50:49,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 17:50:49,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 17:50:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 58 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:49,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2022-10-16 17:50:49,958 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 40 [2022-10-16 17:50:49,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:49,959 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2022-10-16 17:50:49,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:49,959 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2022-10-16 17:50:49,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 17:50:49,961 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:49,961 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:49,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:50,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:50,177 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:50,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:50,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1043487398, now seen corresponding path program 3 times [2022-10-16 17:50:50,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:50,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566868292] [2022-10-16 17:50:50,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:50,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:50,609 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:50,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:50,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566868292] [2022-10-16 17:50:50,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566868292] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:50,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733232429] [2022-10-16 17:50:50,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:50:50,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:50,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:50,611 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:50,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 17:50:50,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-10-16 17:50:50,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:50,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 17:50:50,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:51,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:51,551 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:51,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733232429] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:51,551 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:51,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 48 [2022-10-16 17:50:51,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348596009] [2022-10-16 17:50:51,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:51,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-16 17:50:51,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:51,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-16 17:50:51,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=658, Invalid=1694, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 17:50:51,554 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 49 states, 48 states have (on average 3.4375) internal successors, (165), 49 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:54,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:54,425 INFO L93 Difference]: Finished difference Result 165 states and 179 transitions. [2022-10-16 17:50:54,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-10-16 17:50:54,425 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 3.4375) internal successors, (165), 49 states have internal predecessors, (165), 0 states have call successors, (0), 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 58 [2022-10-16 17:50:54,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:54,427 INFO L225 Difference]: With dead ends: 165 [2022-10-16 17:50:54,427 INFO L226 Difference]: Without dead ends: 164 [2022-10-16 17:50:54,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3301 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=3189, Invalid=5931, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 17:50:54,432 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 641 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:54,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 27 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:50:54,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-10-16 17:50:54,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-10-16 17:50:54,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 163 states have (on average 1.0061349693251533) internal successors, (164), 163 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:54,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 164 transitions. [2022-10-16 17:50:54,481 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 164 transitions. Word has length 58 [2022-10-16 17:50:54,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:54,482 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 164 transitions. [2022-10-16 17:50:54,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 3.4375) internal successors, (165), 49 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:50:54,482 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 164 transitions. [2022-10-16 17:50:54,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-16 17:50:54,485 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:50:54,485 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2022-10-16 17:50:54,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:54,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:54,686 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:50:54,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:50:54,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1131073206, now seen corresponding path program 4 times [2022-10-16 17:50:54,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:50:54,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414094407] [2022-10-16 17:50:54,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:50:54,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:50:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:50:56,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:56,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:50:56,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414094407] [2022-10-16 17:50:56,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414094407] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:50:56,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032391108] [2022-10-16 17:50:56,981 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:50:56,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:50:56,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:50:56,983 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:50:56,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 17:50:57,074 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:50:57,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:50:57,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-16 17:50:57,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:50:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:50:59,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:51:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:51:02,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032391108] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:51:02,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:51:02,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 138 [2022-10-16 17:51:02,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621815834] [2022-10-16 17:51:02,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:51:02,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2022-10-16 17:51:02,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:51:02,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2022-10-16 17:51:02,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4944, Invalid=14238, Unknown=0, NotChecked=0, Total=19182 [2022-10-16 17:51:02,035 INFO L87 Difference]: Start difference. First operand 164 states and 164 transitions. Second operand has 139 states, 138 states have (on average 3.5072463768115942) internal successors, (484), 139 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:51:31,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:51:31,679 INFO L93 Difference]: Finished difference Result 445 states and 484 transitions. [2022-10-16 17:51:31,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-10-16 17:51:31,680 INFO L78 Accepts]: Start accepts. Automaton has has 139 states, 138 states have (on average 3.5072463768115942) internal successors, (484), 139 states have internal predecessors, (484), 0 states have call successors, (0), 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 163 [2022-10-16 17:51:31,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:51:31,682 INFO L225 Difference]: With dead ends: 445 [2022-10-16 17:51:31,682 INFO L226 Difference]: Without dead ends: 444 [2022-10-16 17:51:31,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 276 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30981 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=26657, Invalid=50349, Unknown=0, NotChecked=0, Total=77006 [2022-10-16 17:51:31,695 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4209 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 1701 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4209 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1701 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:51:31,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4209 Valid, 58 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1701 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 17:51:31,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-10-16 17:51:31,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2022-10-16 17:51:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 443 states have (on average 1.002257336343115) internal successors, (444), 443 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:51:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 444 transitions. [2022-10-16 17:51:31,732 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 444 transitions. Word has length 163 [2022-10-16 17:51:31,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:51:31,733 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 444 transitions. [2022-10-16 17:51:31,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 138 states have (on average 3.5072463768115942) internal successors, (484), 139 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:51:31,734 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 444 transitions. [2022-10-16 17:51:31,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2022-10-16 17:51:31,742 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:51:31,742 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1] [2022-10-16 17:51:31,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 17:51:31,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 17:51:31,956 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:51:31,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:51:31,957 INFO L85 PathProgramCache]: Analyzing trace with hash -227260086, now seen corresponding path program 5 times [2022-10-16 17:51:31,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:51:31,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379800080] [2022-10-16 17:51:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:51:31,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:51:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:51:46,869 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 0 proven. 13485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:51:46,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:51:46,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379800080] [2022-10-16 17:51:46,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379800080] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:51:46,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315808371] [2022-10-16 17:51:46,870 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 17:51:46,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:51:46,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:51:46,871 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:51:46,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 17:51:47,212 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2022-10-16 17:51:47,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:51:47,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 127 conjunts are in the unsatisfiable core [2022-10-16 17:51:47,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:52:02,496 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 0 proven. 13485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:52:02,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:52:21,194 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 0 proven. 13485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:52:21,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315808371] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:52:21,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:52:21,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [127, 127, 127] total 378 [2022-10-16 17:52:21,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092316991] [2022-10-16 17:52:21,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:52:21,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 379 states [2022-10-16 17:52:21,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:52:21,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 379 interpolants. [2022-10-16 17:52:21,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37102, Invalid=106160, Unknown=0, NotChecked=0, Total=143262 [2022-10-16 17:52:21,222 INFO L87 Difference]: Start difference. First operand 444 states and 444 transitions. Second operand has 379 states, 378 states have (on average 3.502645502645503) internal successors, (1324), 379 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:54:24,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:54:24,631 INFO L93 Difference]: Finished difference Result 907 states and 972 transitions. [2022-10-16 17:54:24,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 270 states. [2022-10-16 17:54:24,633 INFO L78 Accepts]: Start accepts. Automaton has has 379 states, 378 states have (on average 3.502645502645503) internal successors, (1324), 379 states have internal predecessors, (1324), 0 states have call successors, (0), 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 443 [2022-10-16 17:54:24,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:54:24,638 INFO L225 Difference]: With dead ends: 907 [2022-10-16 17:54:24,638 INFO L226 Difference]: Without dead ends: 906 [2022-10-16 17:54:24,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1213 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 579 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137192 ImplicationChecksByTransitivity, 146.6s TimeCoverageRelationStatistics Valid=110294, Invalid=226686, Unknown=0, NotChecked=0, Total=336980 [2022-10-16 17:54:24,660 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 17942 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 7294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17942 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 10065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7294 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:54:24,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17942 Valid, 129 Invalid, 10065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7294 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-10-16 17:54:24,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-10-16 17:54:24,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 906. [2022-10-16 17:54:24,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 905 states have (on average 1.0011049723756906) internal successors, (906), 905 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:54:24,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 906 transitions. [2022-10-16 17:54:24,715 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 906 transitions. Word has length 443 [2022-10-16 17:54:24,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:54:24,716 INFO L495 AbstractCegarLoop]: Abstraction has 906 states and 906 transitions. [2022-10-16 17:54:24,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 379 states, 378 states have (on average 3.502645502645503) internal successors, (1324), 379 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:54:24,718 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 906 transitions. [2022-10-16 17:54:24,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 906 [2022-10-16 17:54:24,747 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:54:24,747 INFO L195 NwaCegarLoop]: trace histogram [129, 129, 129, 128, 128, 128, 128, 1, 1, 1, 1, 1, 1] [2022-10-16 17:54:24,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 17:54:24,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 17:54:24,961 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:54:24,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:54:24,963 INFO L85 PathProgramCache]: Analyzing trace with hash -223193270, now seen corresponding path program 6 times [2022-10-16 17:54:24,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:54:24,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220658752] [2022-10-16 17:54:24,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:54:24,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:54:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat