/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-industry-pattern/nested-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:24:55,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:24:55,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:24:55,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:24:55,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:24:55,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:24:55,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:24:55,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:24:55,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:24:55,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:24:55,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:24:55,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:24:55,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:24:55,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:24:55,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:24:55,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:24:55,615 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:24:55,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:24:55,615 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:24:55,616 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:24:55,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:24:55,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:24:55,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:24:55,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:24:55,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:24:55,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:24:55,618 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:24:55,618 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:24:55,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:24:55,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:24:55,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:24:55,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:24:55,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:24:55,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:24:55,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:24:55,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:24:55,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:24:55,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:24:55,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:24:55,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:24:55,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:24:55,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:24:55,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:24:56,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:24:56,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:24:56,010 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:24:56,015 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:24:56,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/nested-3.c [2022-10-16 14:24:56,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39dba525/aa78c3b5b8ee4a41b9edc1cfbec72516/FLAGe37a65cf2 [2022-10-16 14:24:56,685 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:24:56,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/nested-3.c [2022-10-16 14:24:56,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39dba525/aa78c3b5b8ee4a41b9edc1cfbec72516/FLAGe37a65cf2 [2022-10-16 14:24:57,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c39dba525/aa78c3b5b8ee4a41b9edc1cfbec72516 [2022-10-16 14:24:57,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:24:57,086 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:24:57,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:24:57,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:24:57,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:24:57,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef41cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57, skipping insertion in model container [2022-10-16 14:24:57,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:24:57,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:24:57,278 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/nested-3.c[404,417] [2022-10-16 14:24:57,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:24:57,305 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:24:57,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/nested-3.c[404,417] [2022-10-16 14:24:57,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:24:57,342 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:24:57,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57 WrapperNode [2022-10-16 14:24:57,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:24:57,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:24:57,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:24:57,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:24:57,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,386 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2022-10-16 14:24:57,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:24:57,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:24:57,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:24:57,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:24:57,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,410 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:24:57,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:24:57,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:24:57,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:24:57,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (1/1) ... [2022-10-16 14:24:57,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:24:57,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:24:57,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:24:57,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:24:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:24:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:24:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:24:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:24:57,637 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:24:57,640 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:24:57,897 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:24:57,905 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:24:57,906 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 14:24:57,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:24:57 BoogieIcfgContainer [2022-10-16 14:24:57,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:24:57,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:24:57,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:24:57,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:24:57,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:24:57" (1/3) ... [2022-10-16 14:24:57,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61931c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:24:57, skipping insertion in model container [2022-10-16 14:24:57,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:57" (2/3) ... [2022-10-16 14:24:57,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61931c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:24:57, skipping insertion in model container [2022-10-16 14:24:57,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:24:57" (3/3) ... [2022-10-16 14:24:57,920 INFO L112 eAbstractionObserver]: Analyzing ICFG nested-3.c [2022-10-16 14:24:57,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:24:57,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-16 14:24:58,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:24:58,045 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;@4ec2b9e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:24:58,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-16 14:24:58,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 44 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:24:58,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:24:58,058 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:24:58,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:24:58,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:24:58,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:24:58,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1811214539, now seen corresponding path program 1 times [2022-10-16 14:24:58,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:24:58,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839558132] [2022-10-16 14:24:58,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:24:58,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:24:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:24:58,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:24:58,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839558132] [2022-10-16 14:24:58,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839558132] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:24:58,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:24:58,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:24:58,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425416915] [2022-10-16 14:24:58,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:24:58,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 14:24:58,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:24:58,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 14:24:58,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 14:24:58,338 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 44 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 14:24:58,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:24:58,360 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2022-10-16 14:24:58,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 14:24:58,363 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 14:24:58,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:24:58,373 INFO L225 Difference]: With dead ends: 85 [2022-10-16 14:24:58,373 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 14:24:58,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 14:24:58,382 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:24:58,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:24:58,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 14:24:58,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-10-16 14:24:58,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 40 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 14:24:58,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2022-10-16 14:24:58,425 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 7 [2022-10-16 14:24:58,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:24:58,425 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2022-10-16 14:24:58,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 14:24:58,426 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2022-10-16 14:24:58,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:24:58,427 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:24:58,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:24:58,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:24:58,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:24:58,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:24:58,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1810767674, now seen corresponding path program 1 times [2022-10-16 14:24:58,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:24:58,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723155429] [2022-10-16 14:24:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:24:58,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:24:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:58,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:24:58,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:24:58,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723155429] [2022-10-16 14:24:58,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723155429] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:24:58,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:24:58,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:24:58,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58940443] [2022-10-16 14:24:58,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:24:58,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:24:58,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:24:58,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:24:58,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:24:58,508 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 14:24:58,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:24:58,560 INFO L93 Difference]: Finished difference Result 88 states and 100 transitions. [2022-10-16 14:24:58,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:24:58,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 14:24:58,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:24:58,563 INFO L225 Difference]: With dead ends: 88 [2022-10-16 14:24:58,563 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 14:24:58,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:24:58,570 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:24:58,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 76 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:24:58,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 14:24:58,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2022-10-16 14:24:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 41 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:24:58,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-10-16 14:24:58,590 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 7 [2022-10-16 14:24:58,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:24:58,592 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-10-16 14:24:58,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 14:24:58,592 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-10-16 14:24:58,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:24:58,594 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:24:58,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:24:58,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:24:58,595 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:24:58,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:24:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1810815372, now seen corresponding path program 1 times [2022-10-16 14:24:58,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:24:58,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164871619] [2022-10-16 14:24:58,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:24:58,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:24:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:58,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:24:58,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:24:58,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164871619] [2022-10-16 14:24:58,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164871619] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:24:58,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:24:58,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:24:58,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70262640] [2022-10-16 14:24:58,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:24:58,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:24:58,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:24:58,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:24:58,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:24:58,740 INFO L87 Difference]: Start difference. First operand 42 states and 47 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 14:24:58,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:24:58,802 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-10-16 14:24:58,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:24:58,802 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 14:24:58,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:24:58,803 INFO L225 Difference]: With dead ends: 49 [2022-10-16 14:24:58,804 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 14:24:58,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:24:58,806 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 4 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:24:58,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 111 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:24:58,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 14:24:58,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2022-10-16 14:24:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.625) internal successors, (52), 45 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:24:58,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-10-16 14:24:58,814 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 7 [2022-10-16 14:24:58,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:24:58,815 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-10-16 14:24:58,815 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 14:24:58,815 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-10-16 14:24:58,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:24:58,816 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:24:58,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:24:58,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:24:58,817 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:24:58,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:24:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash 381359683, now seen corresponding path program 1 times [2022-10-16 14:24:58,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:24:58,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569256278] [2022-10-16 14:24:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:24:58,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:24:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:24:58,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:24:58,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569256278] [2022-10-16 14:24:58,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569256278] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:24:58,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292144566] [2022-10-16 14:24:58,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:24:58,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:24:58,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:24:58,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:24:58,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:24:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:59,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:24:59,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:24:59,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:24:59,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:24:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:24:59,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292144566] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:24:59,140 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:24:59,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2022-10-16 14:24:59,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284591026] [2022-10-16 14:24:59,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:24:59,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:24:59,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:24:59,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:24:59,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:24:59,143 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:24:59,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:24:59,463 INFO L93 Difference]: Finished difference Result 208 states and 241 transitions. [2022-10-16 14:24:59,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 14:24:59,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:24:59,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:24:59,467 INFO L225 Difference]: With dead ends: 208 [2022-10-16 14:24:59,467 INFO L226 Difference]: Without dead ends: 164 [2022-10-16 14:24:59,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=224, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:24:59,471 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 153 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:24:59,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 246 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:24:59,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-10-16 14:24:59,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 77. [2022-10-16 14:24:59,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 63 states have (on average 1.6031746031746033) internal successors, (101), 76 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:24:59,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 101 transitions. [2022-10-16 14:24:59,487 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 101 transitions. Word has length 12 [2022-10-16 14:24:59,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:24:59,488 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 101 transitions. [2022-10-16 14:24:59,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:24:59,488 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2022-10-16 14:24:59,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:24:59,489 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:24:59,489 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:24:59,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:24:59,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:24:59,705 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:24:59,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:24:59,707 INFO L85 PathProgramCache]: Analyzing trace with hash 381407381, now seen corresponding path program 1 times [2022-10-16 14:24:59,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:24:59,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212768423] [2022-10-16 14:24:59,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:24:59,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:24:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:24:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:24:59,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:24:59,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212768423] [2022-10-16 14:24:59,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212768423] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:24:59,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:24:59,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:24:59,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563436974] [2022-10-16 14:24:59,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:24:59,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:24:59,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:24:59,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:24:59,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:24:59,817 INFO L87 Difference]: Start difference. First operand 77 states and 101 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:24:59,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:24:59,859 INFO L93 Difference]: Finished difference Result 78 states and 102 transitions. [2022-10-16 14:24:59,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:24:59,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:24:59,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:24:59,863 INFO L225 Difference]: With dead ends: 78 [2022-10-16 14:24:59,863 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 14:24:59,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:24:59,869 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 6 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:24:59,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 106 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:24:59,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 14:24:59,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2022-10-16 14:24:59,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 63 states have (on average 1.5714285714285714) internal successors, (99), 75 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:24:59,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2022-10-16 14:24:59,893 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 12 [2022-10-16 14:24:59,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:24:59,893 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2022-10-16 14:24:59,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:24:59,896 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2022-10-16 14:24:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:24:59,897 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:24:59,897 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:24:59,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:24:59,898 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:24:59,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:24:59,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1061273017, now seen corresponding path program 1 times [2022-10-16 14:24:59,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:24:59,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578376811] [2022-10-16 14:24:59,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:24:59,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:24:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:00,008 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:00,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:00,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578376811] [2022-10-16 14:25:00,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578376811] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:00,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020621588] [2022-10-16 14:25:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:00,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:00,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:00,022 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:00,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:25:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:00,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:25:00,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:00,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:25:00,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020621588] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:00,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:25:00,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-10-16 14:25:00,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788762770] [2022-10-16 14:25:00,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:00,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:25:00,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:00,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:25:00,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:25:00,128 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:00,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:00,254 INFO L93 Difference]: Finished difference Result 168 states and 202 transitions. [2022-10-16 14:25:00,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:25:00,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 14:25:00,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:00,257 INFO L225 Difference]: With dead ends: 168 [2022-10-16 14:25:00,258 INFO L226 Difference]: Without dead ends: 125 [2022-10-16 14:25:00,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:25:00,269 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 46 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:00,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 120 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:25:00,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-10-16 14:25:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 99. [2022-10-16 14:25:00,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 86 states have (on average 1.569767441860465) internal successors, (135), 98 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:00,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 135 transitions. [2022-10-16 14:25:00,302 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 135 transitions. Word has length 13 [2022-10-16 14:25:00,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:00,303 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 135 transitions. [2022-10-16 14:25:00,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:00,303 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 135 transitions. [2022-10-16 14:25:00,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:25:00,305 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:00,305 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:00,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:25:00,518 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,SelfDestructingSolverStorable5 [2022-10-16 14:25:00,519 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:25:00,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:00,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1061213435, now seen corresponding path program 1 times [2022-10-16 14:25:00,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:00,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890625277] [2022-10-16 14:25:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:00,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:00,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:00,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890625277] [2022-10-16 14:25:00,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890625277] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:00,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512428668] [2022-10-16 14:25:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:00,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:00,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:00,595 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:00,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:25:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:00,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:25:00,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:00,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:00,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:25:00,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512428668] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:00,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:25:00,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:25:00,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789785923] [2022-10-16 14:25:00,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:00,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:25:00,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:00,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:25:00,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:25:00,681 INFO L87 Difference]: Start difference. First operand 99 states and 135 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:00,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:00,733 INFO L93 Difference]: Finished difference Result 100 states and 136 transitions. [2022-10-16 14:25:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:25:00,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 14:25:00,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:00,735 INFO L225 Difference]: With dead ends: 100 [2022-10-16 14:25:00,735 INFO L226 Difference]: Without dead ends: 99 [2022-10-16 14:25:00,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:25:00,736 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 76 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:00,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 101 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:25:00,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-16 14:25:00,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2022-10-16 14:25:00,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 86 states have (on average 1.5348837209302326) internal successors, (132), 97 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 132 transitions. [2022-10-16 14:25:00,750 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 132 transitions. Word has length 13 [2022-10-16 14:25:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:00,750 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 132 transitions. [2022-10-16 14:25:00,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:00,756 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 132 transitions. [2022-10-16 14:25:00,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:25:00,758 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:00,758 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:00,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:25:00,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:00,959 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:25:00,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:00,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2070641766, now seen corresponding path program 1 times [2022-10-16 14:25:00,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:00,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952356521] [2022-10-16 14:25:00,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:00,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:01,063 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:25:01,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:01,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952356521] [2022-10-16 14:25:01,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952356521] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:01,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:25:01,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:25:01,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170410224] [2022-10-16 14:25:01,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:01,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:25:01,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:01,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:25:01,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:25:01,066 INFO L87 Difference]: Start difference. First operand 98 states and 132 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:01,104 INFO L93 Difference]: Finished difference Result 186 states and 240 transitions. [2022-10-16 14:25:01,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:25:01,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 14:25:01,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:01,106 INFO L225 Difference]: With dead ends: 186 [2022-10-16 14:25:01,106 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 14:25:01,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:25:01,111 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 14 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:01,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 132 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:25:01,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 14:25:01,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 52. [2022-10-16 14:25:01,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 51 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2022-10-16 14:25:01,127 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 17 [2022-10-16 14:25:01,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:01,128 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2022-10-16 14:25:01,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,130 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2022-10-16 14:25:01,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:25:01,131 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:01,131 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:01,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:25:01,131 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:25:01,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:01,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1245732015, now seen corresponding path program 1 times [2022-10-16 14:25:01,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:01,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462246554] [2022-10-16 14:25:01,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:01,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:25:01,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:01,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462246554] [2022-10-16 14:25:01,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462246554] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:01,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:25:01,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:25:01,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018839320] [2022-10-16 14:25:01,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:01,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:25:01,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:01,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:25:01,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:01,173 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:01,183 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-10-16 14:25:01,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:25:01,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:25:01,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:01,184 INFO L225 Difference]: With dead ends: 52 [2022-10-16 14:25:01,184 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 14:25:01,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:01,186 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:01,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 32 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:25:01,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 14:25:01,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-10-16 14:25:01,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 50 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2022-10-16 14:25:01,192 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 18 [2022-10-16 14:25:01,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:01,192 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2022-10-16 14:25:01,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,193 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-10-16 14:25:01,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:25:01,194 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:01,194 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:01,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 14:25:01,194 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:25:01,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:01,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1245738357, now seen corresponding path program 1 times [2022-10-16 14:25:01,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:01,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151985961] [2022-10-16 14:25:01,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:01,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:01,235 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 14:25:01,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:01,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151985961] [2022-10-16 14:25:01,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151985961] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:01,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:25:01,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:25:01,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596805879] [2022-10-16 14:25:01,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:01,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:25:01,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:01,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:25:01,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:25:01,241 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:01,267 INFO L93 Difference]: Finished difference Result 113 states and 125 transitions. [2022-10-16 14:25:01,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:25:01,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:25:01,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:01,269 INFO L225 Difference]: With dead ends: 113 [2022-10-16 14:25:01,269 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 14:25:01,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:25:01,271 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 28 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:01,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 111 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:25:01,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 14:25:01,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 51. [2022-10-16 14:25:01,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.302325581395349) internal successors, (56), 50 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-10-16 14:25:01,282 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 18 [2022-10-16 14:25:01,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:01,283 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-10-16 14:25:01,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-10-16 14:25:01,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:25:01,285 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:01,285 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:01,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:25:01,291 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:25:01,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:01,292 INFO L85 PathProgramCache]: Analyzing trace with hash 234621107, now seen corresponding path program 1 times [2022-10-16 14:25:01,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:01,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235284892] [2022-10-16 14:25:01,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:01,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:01,347 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:25:01,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:01,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235284892] [2022-10-16 14:25:01,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235284892] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:01,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:25:01,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:25:01,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271657470] [2022-10-16 14:25:01,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:01,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:25:01,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:01,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:25:01,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:01,350 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:01,373 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2022-10-16 14:25:01,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:25:01,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:25:01,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:01,374 INFO L225 Difference]: With dead ends: 88 [2022-10-16 14:25:01,374 INFO L226 Difference]: Without dead ends: 84 [2022-10-16 14:25:01,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:01,375 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 7 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:01,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 60 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:25:01,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-10-16 14:25:01,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-10-16 14:25:01,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 76 states have (on average 1.236842105263158) internal successors, (94), 83 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2022-10-16 14:25:01,385 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 18 [2022-10-16 14:25:01,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:01,386 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2022-10-16 14:25:01,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,386 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2022-10-16 14:25:01,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:25:01,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:01,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:01,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:25:01,387 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:25:01,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:01,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2132587349, now seen corresponding path program 1 times [2022-10-16 14:25:01,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:01,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776137965] [2022-10-16 14:25:01,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:01,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:01,423 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:25:01,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:01,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776137965] [2022-10-16 14:25:01,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776137965] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:01,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:25:01,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:25:01,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263397268] [2022-10-16 14:25:01,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:01,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:25:01,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:01,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:25:01,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:01,425 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:01,446 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2022-10-16 14:25:01,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:25:01,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 14:25:01,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:01,447 INFO L225 Difference]: With dead ends: 92 [2022-10-16 14:25:01,447 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 14:25:01,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:01,449 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 9 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:01,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 60 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:25:01,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 14:25:01,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-10-16 14:25:01,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.225) internal successors, (98), 87 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2022-10-16 14:25:01,464 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 20 [2022-10-16 14:25:01,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:01,464 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2022-10-16 14:25:01,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:01,465 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2022-10-16 14:25:01,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 14:25:01,469 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:01,469 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:01,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 14:25:01,470 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:25:01,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:01,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1893988480, now seen corresponding path program 1 times [2022-10-16 14:25:01,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:01,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747119966] [2022-10-16 14:25:01,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:01,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:01,568 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 14:25:01,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:01,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747119966] [2022-10-16 14:25:01,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747119966] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:01,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094092417] [2022-10-16 14:25:01,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:01,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:01,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:01,574 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:01,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:25:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:01,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:25:01,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 14:25:01,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:25:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 14:25:01,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094092417] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:25:01,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:25:01,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-10-16 14:25:01,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314403262] [2022-10-16 14:25:01,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:25:01,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 14:25:01,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:01,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 14:25:01,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:25:01,787 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:02,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:02,106 INFO L93 Difference]: Finished difference Result 280 states and 332 transitions. [2022-10-16 14:25:02,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 14:25:02,106 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 14:25:02,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:02,108 INFO L225 Difference]: With dead ends: 280 [2022-10-16 14:25:02,108 INFO L226 Difference]: Without dead ends: 215 [2022-10-16 14:25:02,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 14:25:02,113 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 145 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:02,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 140 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:25:02,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-10-16 14:25:02,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2022-10-16 14:25:02,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 205 states have (on average 1.1560975609756097) internal successors, (237), 212 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:02,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 237 transitions. [2022-10-16 14:25:02,135 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 237 transitions. Word has length 41 [2022-10-16 14:25:02,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:02,136 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 237 transitions. [2022-10-16 14:25:02,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 237 transitions. [2022-10-16 14:25:02,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 14:25:02,143 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:02,143 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:02,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:25:02,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:02,357 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:25:02,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:02,358 INFO L85 PathProgramCache]: Analyzing trace with hash 711043683, now seen corresponding path program 1 times [2022-10-16 14:25:02,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:02,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083701142] [2022-10-16 14:25:02,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:02,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:02,464 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-10-16 14:25:02,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:02,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083701142] [2022-10-16 14:25:02,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083701142] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:02,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750786470] [2022-10-16 14:25:02,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:02,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:02,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:02,466 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:02,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:25:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:02,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 14:25:02,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:02,672 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 137 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 14:25:02,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:25:02,869 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 137 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 14:25:02,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750786470] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:25:02,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:25:02,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 13, 13] total 26 [2022-10-16 14:25:02,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473022830] [2022-10-16 14:25:02,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:25:02,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 14:25:02,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:02,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 14:25:02,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:25:02,872 INFO L87 Difference]: Start difference. First operand 213 states and 237 transitions. Second operand has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:03,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:03,658 INFO L93 Difference]: Finished difference Result 551 states and 648 transitions. [2022-10-16 14:25:03,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-10-16 14:25:03,659 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-10-16 14:25:03,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:03,660 INFO L225 Difference]: With dead ends: 551 [2022-10-16 14:25:03,660 INFO L226 Difference]: Without dead ends: 391 [2022-10-16 14:25:03,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1202 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1012, Invalid=3544, Unknown=0, NotChecked=0, Total=4556 [2022-10-16 14:25:03,664 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 240 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:03,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 230 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:25:03,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-10-16 14:25:03,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2022-10-16 14:25:03,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 385 states have (on average 1.1246753246753247) internal successors, (433), 390 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:03,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 433 transitions. [2022-10-16 14:25:03,694 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 433 transitions. Word has length 72 [2022-10-16 14:25:03,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:03,694 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 433 transitions. [2022-10-16 14:25:03,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.076923076923077) internal successors, (106), 26 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:03,695 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 433 transitions. [2022-10-16 14:25:03,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-16 14:25:03,696 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:03,696 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:03,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:25:03,913 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,SelfDestructingSolverStorable13 [2022-10-16 14:25:03,914 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:25:03,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:03,915 INFO L85 PathProgramCache]: Analyzing trace with hash -2111543012, now seen corresponding path program 1 times [2022-10-16 14:25:03,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:03,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403707389] [2022-10-16 14:25:03,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:03,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2022-10-16 14:25:04,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:04,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403707389] [2022-10-16 14:25:04,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403707389] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:04,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643326081] [2022-10-16 14:25:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:04,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:04,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:04,095 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:04,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:25:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:04,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 14:25:04,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 629 proven. 286 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-10-16 14:25:04,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:25:05,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 629 proven. 286 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-10-16 14:25:05,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643326081] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:25:05,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:25:05,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 25, 25] total 50 [2022-10-16 14:25:05,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28353837] [2022-10-16 14:25:05,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:25:05,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 14:25:05,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:05,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 14:25:05,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=1845, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 14:25:05,212 INFO L87 Difference]: Start difference. First operand 391 states and 433 transitions. Second operand has 50 states, 50 states have (on average 3.44) internal successors, (172), 50 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:08,296 INFO L93 Difference]: Finished difference Result 1276 states and 1507 transitions. [2022-10-16 14:25:08,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-10-16 14:25:08,297 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.44) internal successors, (172), 50 states have internal predecessors, (172), 0 states have call successors, (0), 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 133 [2022-10-16 14:25:08,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:08,302 INFO L225 Difference]: With dead ends: 1276 [2022-10-16 14:25:08,302 INFO L226 Difference]: Without dead ends: 998 [2022-10-16 14:25:08,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8432 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=6219, Invalid=19863, Unknown=0, NotChecked=0, Total=26082 [2022-10-16 14:25:08,317 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 675 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:08,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 226 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:25:08,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2022-10-16 14:25:08,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 751. [2022-10-16 14:25:08,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 745 states have (on average 1.112751677852349) internal successors, (829), 750 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:08,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 829 transitions. [2022-10-16 14:25:08,367 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 829 transitions. Word has length 133 [2022-10-16 14:25:08,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:08,367 INFO L495 AbstractCegarLoop]: Abstraction has 751 states and 829 transitions. [2022-10-16 14:25:08,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.44) internal successors, (172), 50 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:08,368 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 829 transitions. [2022-10-16 14:25:08,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-16 14:25:08,370 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:08,370 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 46, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:08,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:25:08,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 14:25:08,587 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:25:08,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:08,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1326073318, now seen corresponding path program 1 times [2022-10-16 14:25:08,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:08,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133577935] [2022-10-16 14:25:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:08,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5275 backedges. 0 proven. 2699 refuted. 0 times theorem prover too weak. 2576 trivial. 0 not checked. [2022-10-16 14:25:08,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:08,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133577935] [2022-10-16 14:25:08,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133577935] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:08,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746370598] [2022-10-16 14:25:08,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:08,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:08,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:08,878 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:08,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:25:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:08,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-16 14:25:08,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5275 backedges. 2693 proven. 1288 refuted. 0 times theorem prover too weak. 1294 trivial. 0 not checked. [2022-10-16 14:25:09,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:25:12,012 INFO L134 CoverageAnalysis]: Checked inductivity of 5275 backedges. 2693 proven. 1288 refuted. 0 times theorem prover too weak. 1294 trivial. 0 not checked. [2022-10-16 14:25:12,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746370598] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:25:12,013 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:25:12,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 49, 49] total 98 [2022-10-16 14:25:12,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227484466] [2022-10-16 14:25:12,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:25:12,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-10-16 14:25:12,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:12,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-10-16 14:25:12,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2357, Invalid=7149, Unknown=0, NotChecked=0, Total=9506 [2022-10-16 14:25:12,019 INFO L87 Difference]: Start difference. First operand 751 states and 829 transitions. Second operand has 98 states, 98 states have (on average 2.9285714285714284) internal successors, (287), 98 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:23,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:23,254 INFO L93 Difference]: Finished difference Result 2480 states and 2929 transitions. [2022-10-16 14:25:23,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 283 states. [2022-10-16 14:25:23,255 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 2.9285714285714284) internal successors, (287), 98 states have internal predecessors, (287), 0 states have call successors, (0), 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 253 [2022-10-16 14:25:23,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:23,265 INFO L225 Difference]: With dead ends: 2480 [2022-10-16 14:25:23,265 INFO L226 Difference]: Without dead ends: 1962 [2022-10-16 14:25:23,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 328 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36668 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=25119, Invalid=83451, Unknown=0, NotChecked=0, Total=108570 [2022-10-16 14:25:23,286 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 1807 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:23,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1807 Valid, 353 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:25:23,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-10-16 14:25:23,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1960. [2022-10-16 14:25:23,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1960 states, 1954 states have (on average 1.105424769703173) internal successors, (2160), 1959 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2160 transitions. [2022-10-16 14:25:23,406 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2160 transitions. Word has length 253 [2022-10-16 14:25:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:23,408 INFO L495 AbstractCegarLoop]: Abstraction has 1960 states and 2160 transitions. [2022-10-16 14:25:23,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 2.9285714285714284) internal successors, (287), 98 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:23,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2160 transitions. [2022-10-16 14:25:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-10-16 14:25:23,424 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:23,424 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 94, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:23,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:25:23,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:23,642 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:25:23,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:23,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1553173371, now seen corresponding path program 1 times [2022-10-16 14:25:23,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:23,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242024147] [2022-10-16 14:25:23,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:23,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:24,255 INFO L134 CoverageAnalysis]: Checked inductivity of 22052 backedges. 0 proven. 11148 refuted. 0 times theorem prover too weak. 10904 trivial. 0 not checked. [2022-10-16 14:25:24,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:24,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242024147] [2022-10-16 14:25:24,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242024147] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:24,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362888875] [2022-10-16 14:25:24,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:24,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:24,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:24,258 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:24,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:25:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:24,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 96 conjunts are in the unsatisfiable core [2022-10-16 14:25:24,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 22052 backedges. 11141 proven. 5452 refuted. 0 times theorem prover too weak. 5459 trivial. 0 not checked. [2022-10-16 14:25:27,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:25:35,953 INFO L134 CoverageAnalysis]: Checked inductivity of 22052 backedges. 11141 proven. 5452 refuted. 0 times theorem prover too weak. 5459 trivial. 0 not checked. [2022-10-16 14:25:35,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362888875] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:25:35,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:25:35,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 97, 97] total 194 [2022-10-16 14:25:35,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464250401] [2022-10-16 14:25:35,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:25:35,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2022-10-16 14:25:35,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:35,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2022-10-16 14:25:35,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9316, Invalid=28126, Unknown=0, NotChecked=0, Total=37442 [2022-10-16 14:25:35,964 INFO L87 Difference]: Start difference. First operand 1960 states and 2160 transitions. Second operand has 194 states, 194 states have (on average 2.7216494845360826) internal successors, (528), 194 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:26:06,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:26:06,909 INFO L93 Difference]: Finished difference Result 5365 states and 6294 transitions. [2022-10-16 14:26:06,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-10-16 14:26:06,910 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 194 states have (on average 2.7216494845360826) internal successors, (528), 194 states have internal predecessors, (528), 0 states have call successors, (0), 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 494 [2022-10-16 14:26:06,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:26:06,928 INFO L225 Difference]: With dead ends: 5365 [2022-10-16 14:26:06,928 INFO L226 Difference]: Without dead ends: 3878 [2022-10-16 14:26:06,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1368 GetRequests, 798 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106034 ImplicationChecksByTransitivity, 36.3s TimeCoverageRelationStatistics Valid=64600, Invalid=262012, Unknown=0, NotChecked=0, Total=326612 [2022-10-16 14:26:06,960 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3294 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:26:06,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3294 Valid, 385 Invalid, 1871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 14:26:06,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3878 states. [2022-10-16 14:26:07,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3878 to 3878. [2022-10-16 14:26:07,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3878 states, 3874 states have (on average 1.1022199277232834) internal successors, (4270), 3877 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:26:07,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 4270 transitions. [2022-10-16 14:26:07,195 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 4270 transitions. Word has length 494 [2022-10-16 14:26:07,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:26:07,196 INFO L495 AbstractCegarLoop]: Abstraction has 3878 states and 4270 transitions. [2022-10-16 14:26:07,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 194 states have (on average 2.7216494845360826) internal successors, (528), 194 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:26:07,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 4270 transitions. [2022-10-16 14:26:07,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2022-10-16 14:26:07,246 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:26:07,247 INFO L195 NwaCegarLoop]: trace histogram [190, 190, 190, 190, 189, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:26:07,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:26:07,461 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,SelfDestructingSolverStorable16 [2022-10-16 14:26:07,462 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-10-16 14:26:07,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:26:07,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1870691838, now seen corresponding path program 1 times [2022-10-16 14:26:07,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:26:07,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30296565] [2022-10-16 14:26:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:26:07,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:26:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:26:08,519 INFO L134 CoverageAnalysis]: Checked inductivity of 90160 backedges. 0 proven. 45320 refuted. 0 times theorem prover too weak. 44840 trivial. 0 not checked. [2022-10-16 14:26:08,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:26:08,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30296565] [2022-10-16 14:26:08,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30296565] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:26:08,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332135183] [2022-10-16 14:26:08,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:26:08,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:26:08,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:26:08,522 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:26:08,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:26:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:26:08,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 192 conjunts are in the unsatisfiable core [2022-10-16 14:26:08,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:26:20,806 INFO L134 CoverageAnalysis]: Checked inductivity of 90160 backedges. 45317 proven. 22420 refuted. 0 times theorem prover too weak. 22423 trivial. 0 not checked. [2022-10-16 14:26:20,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:26:53,929 INFO L134 CoverageAnalysis]: Checked inductivity of 90160 backedges. 45317 proven. 22420 refuted. 0 times theorem prover too weak. 22423 trivial. 0 not checked. [2022-10-16 14:26:53,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332135183] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:26:53,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:26:53,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 193, 193] total 386 [2022-10-16 14:26:53,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145427823] [2022-10-16 14:26:53,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:26:53,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 386 states [2022-10-16 14:26:53,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:26:53,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 386 interpolants. [2022-10-16 14:26:53,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37061, Invalid=111549, Unknown=0, NotChecked=0, Total=148610 [2022-10-16 14:26:53,956 INFO L87 Difference]: Start difference. First operand 3878 states and 4270 transitions. Second operand has 386 states, 386 states have (on average 2.6321243523316062) internal successors, (1016), 386 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)