/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/systemc/toy2.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:06:38,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:06:38,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:06:38,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 17:06:38,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:06:38,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:06:38,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:06:38,916 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:06:38,945 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:06:38,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:06:38,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:06:38,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:06:38,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:06:38,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:06:38,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:06:38,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:06:38,952 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:06:38,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:06:38,953 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:06:38,953 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:06:38,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:06:38,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:06:38,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:06:38,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:06:38,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:06:38,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:06:38,955 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:06:38,955 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:06:38,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:06:38,955 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:06:38,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:06:38,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:06:38,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:06:38,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:06:38,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:06:38,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:06:38,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:06:38,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:06:38,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:06:38,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:06:38,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:06:38,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:06:39,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:06:39,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:06:39,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:06:39,365 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:06:39,366 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:06:39,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/toy2.cil.c [2022-10-16 17:06:39,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aec3431cb/3b2e5e9d78c14c1b8d626e2284d713ea/FLAG08dcd3a8f [2022-10-16 17:06:40,071 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:06:40,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/toy2.cil.c [2022-10-16 17:06:40,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aec3431cb/3b2e5e9d78c14c1b8d626e2284d713ea/FLAG08dcd3a8f [2022-10-16 17:06:40,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aec3431cb/3b2e5e9d78c14c1b8d626e2284d713ea [2022-10-16 17:06:40,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:06:40,449 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:06:40,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:06:40,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:06:40,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:06:40,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:40,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b4894c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40, skipping insertion in model container [2022-10-16 17:06:40,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:40,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:06:40,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:06:40,769 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/systemc/toy2.cil.c[698,711] [2022-10-16 17:06:40,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:06:40,848 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:06:40,861 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/systemc/toy2.cil.c[698,711] [2022-10-16 17:06:40,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:06:40,930 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:06:40,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40 WrapperNode [2022-10-16 17:06:40,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:06:40,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:06:40,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:06:40,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:06:40,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:40,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:41,028 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 367 [2022-10-16 17:06:41,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:06:41,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:06:41,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:06:41,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:06:41,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:41,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:41,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:41,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:41,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:41,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:41,074 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:41,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:41,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:06:41,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:06:41,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:06:41,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:06:41,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (1/1) ... [2022-10-16 17:06:41,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:06:41,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:06:41,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:06:41,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:06:41,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:06:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:06:41,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:06:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:06:41,341 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:06:41,343 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:06:41,930 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:06:41,940 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:06:41,940 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-16 17:06:41,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:06:41 BoogieIcfgContainer [2022-10-16 17:06:41,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:06:41,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:06:41,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:06:41,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:06:41,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:06:40" (1/3) ... [2022-10-16 17:06:41,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608a381e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:06:41, skipping insertion in model container [2022-10-16 17:06:41,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:40" (2/3) ... [2022-10-16 17:06:41,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608a381e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:06:41, skipping insertion in model container [2022-10-16 17:06:41,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:06:41" (3/3) ... [2022-10-16 17:06:41,955 INFO L112 eAbstractionObserver]: Analyzing ICFG toy2.cil.c [2022-10-16 17:06:41,978 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:06:41,978 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 17:06:42,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:06:42,056 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;@3af0cd13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:06:42,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 17:06:42,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 135 states have (on average 1.837037037037037) internal successors, (248), 141 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:42,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:42,073 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:42,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:42,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:42,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:42,081 INFO L85 PathProgramCache]: Analyzing trace with hash -85848250, now seen corresponding path program 1 times [2022-10-16 17:06:42,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:42,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834295806] [2022-10-16 17:06:42,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:42,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:42,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:42,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834295806] [2022-10-16 17:06:42,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834295806] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:42,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:42,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:42,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267678123] [2022-10-16 17:06:42,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:42,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:42,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:42,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:42,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:42,643 INFO L87 Difference]: Start difference. First operand has 142 states, 135 states have (on average 1.837037037037037) internal successors, (248), 141 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:42,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:42,752 INFO L93 Difference]: Finished difference Result 275 states and 482 transitions. [2022-10-16 17:06:42,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:42,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:42,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:42,767 INFO L225 Difference]: With dead ends: 275 [2022-10-16 17:06:42,767 INFO L226 Difference]: Without dead ends: 136 [2022-10-16 17:06:42,772 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 17:06:42,776 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 228 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:42,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 232 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:42,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-10-16 17:06:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-10-16 17:06:42,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 130 states have (on average 1.7538461538461538) internal successors, (228), 135 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 228 transitions. [2022-10-16 17:06:42,838 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 228 transitions. Word has length 34 [2022-10-16 17:06:42,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:42,839 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 228 transitions. [2022-10-16 17:06:42,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:42,840 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 228 transitions. [2022-10-16 17:06:42,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:42,841 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:42,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:42,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:06:42,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:42,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:42,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1472051644, now seen corresponding path program 1 times [2022-10-16 17:06:42,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:42,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734358402] [2022-10-16 17:06:42,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:42,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:43,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:43,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734358402] [2022-10-16 17:06:43,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734358402] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:43,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:43,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:06:43,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486882734] [2022-10-16 17:06:43,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:43,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:06:43,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:43,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:06:43,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:06:43,067 INFO L87 Difference]: Start difference. First operand 136 states and 228 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:43,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:43,206 INFO L93 Difference]: Finished difference Result 370 states and 616 transitions. [2022-10-16 17:06:43,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:06:43,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:43,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:43,215 INFO L225 Difference]: With dead ends: 370 [2022-10-16 17:06:43,216 INFO L226 Difference]: Without dead ends: 237 [2022-10-16 17:06:43,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:06:43,222 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 598 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:43,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 386 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:43,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-10-16 17:06:43,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 230. [2022-10-16 17:06:43,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 224 states have (on average 1.7321428571428572) internal successors, (388), 229 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:43,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 388 transitions. [2022-10-16 17:06:43,288 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 388 transitions. Word has length 34 [2022-10-16 17:06:43,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:43,291 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 388 transitions. [2022-10-16 17:06:43,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:43,292 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 388 transitions. [2022-10-16 17:06:43,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:43,294 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:43,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:43,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:06:43,295 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:43,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:43,298 INFO L85 PathProgramCache]: Analyzing trace with hash 451176390, now seen corresponding path program 1 times [2022-10-16 17:06:43,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:43,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287934144] [2022-10-16 17:06:43,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:43,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:43,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:43,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:43,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287934144] [2022-10-16 17:06:43,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287934144] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:43,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:43,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:43,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925624510] [2022-10-16 17:06:43,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:43,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:43,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:43,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:43,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:43,485 INFO L87 Difference]: Start difference. First operand 230 states and 388 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:43,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:43,560 INFO L93 Difference]: Finished difference Result 451 states and 763 transitions. [2022-10-16 17:06:43,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:43,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:43,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:43,564 INFO L225 Difference]: With dead ends: 451 [2022-10-16 17:06:43,564 INFO L226 Difference]: Without dead ends: 230 [2022-10-16 17:06:43,566 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 17:06:43,568 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 197 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:43,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 211 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:43,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-10-16 17:06:43,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-10-16 17:06:43,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 224 states have (on average 1.6785714285714286) internal successors, (376), 229 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:43,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 376 transitions. [2022-10-16 17:06:43,630 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 376 transitions. Word has length 34 [2022-10-16 17:06:43,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:43,631 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 376 transitions. [2022-10-16 17:06:43,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:43,631 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 376 transitions. [2022-10-16 17:06:43,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:43,633 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:43,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:43,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:06:43,634 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:43,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:43,635 INFO L85 PathProgramCache]: Analyzing trace with hash -497901246, now seen corresponding path program 1 times [2022-10-16 17:06:43,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:43,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167200775] [2022-10-16 17:06:43,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:43,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:43,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:43,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:43,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167200775] [2022-10-16 17:06:43,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167200775] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:43,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:43,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:06:43,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004417104] [2022-10-16 17:06:43,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:43,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:06:43,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:43,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:06:43,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:06:43,729 INFO L87 Difference]: Start difference. First operand 230 states and 376 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:43,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:43,853 INFO L93 Difference]: Finished difference Result 631 states and 1031 transitions. [2022-10-16 17:06:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:06:43,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:43,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:43,856 INFO L225 Difference]: With dead ends: 631 [2022-10-16 17:06:43,857 INFO L226 Difference]: Without dead ends: 411 [2022-10-16 17:06:43,858 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 17:06:43,860 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 385 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:43,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 482 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:06:43,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-10-16 17:06:43,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 230. [2022-10-16 17:06:43,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 224 states have (on average 1.6651785714285714) internal successors, (373), 229 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:43,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 373 transitions. [2022-10-16 17:06:43,900 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 373 transitions. Word has length 34 [2022-10-16 17:06:43,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:43,901 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 373 transitions. [2022-10-16 17:06:43,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:43,901 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 373 transitions. [2022-10-16 17:06:43,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:43,902 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:43,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:43,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:06:43,903 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:43,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:43,904 INFO L85 PathProgramCache]: Analyzing trace with hash -357352636, now seen corresponding path program 1 times [2022-10-16 17:06:43,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:43,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672980799] [2022-10-16 17:06:43,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:43,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:43,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:43,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:43,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672980799] [2022-10-16 17:06:43,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672980799] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:43,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:43,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:06:43,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918359119] [2022-10-16 17:06:43,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:43,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:06:43,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:43,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:06:43,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:06:43,963 INFO L87 Difference]: Start difference. First operand 230 states and 373 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:44,067 INFO L93 Difference]: Finished difference Result 632 states and 1025 transitions. [2022-10-16 17:06:44,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:06:44,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:44,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:44,071 INFO L225 Difference]: With dead ends: 632 [2022-10-16 17:06:44,071 INFO L226 Difference]: Without dead ends: 413 [2022-10-16 17:06:44,072 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 17:06:44,074 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 383 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:44,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 489 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:06:44,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-10-16 17:06:44,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 230. [2022-10-16 17:06:44,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 224 states have (on average 1.6517857142857142) internal successors, (370), 229 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 370 transitions. [2022-10-16 17:06:44,101 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 370 transitions. Word has length 34 [2022-10-16 17:06:44,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:44,101 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 370 transitions. [2022-10-16 17:06:44,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,102 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 370 transitions. [2022-10-16 17:06:44,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:44,103 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:44,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:44,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:06:44,104 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:44,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:44,105 INFO L85 PathProgramCache]: Analyzing trace with hash -491366142, now seen corresponding path program 1 times [2022-10-16 17:06:44,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:44,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592137993] [2022-10-16 17:06:44,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:44,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:44,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:44,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:44,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592137993] [2022-10-16 17:06:44,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592137993] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:44,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:44,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:06:44,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138145047] [2022-10-16 17:06:44,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:44,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:06:44,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:44,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:06:44,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:06:44,166 INFO L87 Difference]: Start difference. First operand 230 states and 370 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:44,268 INFO L93 Difference]: Finished difference Result 646 states and 1038 transitions. [2022-10-16 17:06:44,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:06:44,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:44,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:44,272 INFO L225 Difference]: With dead ends: 646 [2022-10-16 17:06:44,273 INFO L226 Difference]: Without dead ends: 428 [2022-10-16 17:06:44,273 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 17:06:44,275 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 389 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:44,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 499 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:44,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-10-16 17:06:44,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 236. [2022-10-16 17:06:44,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 230 states have (on average 1.626086956521739) internal successors, (374), 235 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 374 transitions. [2022-10-16 17:06:44,331 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 374 transitions. Word has length 34 [2022-10-16 17:06:44,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:44,332 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 374 transitions. [2022-10-16 17:06:44,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,332 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 374 transitions. [2022-10-16 17:06:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:44,333 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:44,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:44,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:06:44,334 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:44,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:44,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1998162820, now seen corresponding path program 1 times [2022-10-16 17:06:44,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:44,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306452277] [2022-10-16 17:06:44,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:44,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:44,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:44,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:44,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306452277] [2022-10-16 17:06:44,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306452277] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:44,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:44,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:06:44,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742226628] [2022-10-16 17:06:44,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:44,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:06:44,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:44,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:06:44,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:06:44,410 INFO L87 Difference]: Start difference. First operand 236 states and 374 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:44,564 INFO L93 Difference]: Finished difference Result 815 states and 1287 transitions. [2022-10-16 17:06:44,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:06:44,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:44,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:44,570 INFO L225 Difference]: With dead ends: 815 [2022-10-16 17:06:44,571 INFO L226 Difference]: Without dead ends: 592 [2022-10-16 17:06:44,571 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 17:06:44,576 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 385 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:44,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 601 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:06:44,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-10-16 17:06:44,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 389. [2022-10-16 17:06:44,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 383 states have (on average 1.6109660574412532) internal successors, (617), 388 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 617 transitions. [2022-10-16 17:06:44,637 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 617 transitions. Word has length 34 [2022-10-16 17:06:44,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:44,638 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 617 transitions. [2022-10-16 17:06:44,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,638 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 617 transitions. [2022-10-16 17:06:44,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:44,644 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:44,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:44,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:06:44,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:44,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:44,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2077949758, now seen corresponding path program 1 times [2022-10-16 17:06:44,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:44,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714575558] [2022-10-16 17:06:44,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:44,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:44,737 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 17:06:44,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:44,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714575558] [2022-10-16 17:06:44,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714575558] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:44,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:44,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:44,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796753111] [2022-10-16 17:06:44,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:44,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:44,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:44,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:44,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:44,742 INFO L87 Difference]: Start difference. First operand 389 states and 617 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:44,836 INFO L93 Difference]: Finished difference Result 934 states and 1482 transitions. [2022-10-16 17:06:44,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:44,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:44,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:44,843 INFO L225 Difference]: With dead ends: 934 [2022-10-16 17:06:44,843 INFO L226 Difference]: Without dead ends: 569 [2022-10-16 17:06:44,844 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 17:06:44,845 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 185 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:44,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 359 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:44,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-10-16 17:06:44,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 563. [2022-10-16 17:06:44,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 557 states have (on average 1.606822262118492) internal successors, (895), 562 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 895 transitions. [2022-10-16 17:06:44,942 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 895 transitions. Word has length 34 [2022-10-16 17:06:44,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:44,942 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 895 transitions. [2022-10-16 17:06:44,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:44,943 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 895 transitions. [2022-10-16 17:06:44,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:44,944 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:44,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:44,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 17:06:44,954 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:44,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:44,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1454114622, now seen corresponding path program 1 times [2022-10-16 17:06:44,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:44,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001569387] [2022-10-16 17:06:44,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:44,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:45,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:45,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001569387] [2022-10-16 17:06:45,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001569387] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:45,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:45,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:06:45,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922567157] [2022-10-16 17:06:45,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:45,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:06:45,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:45,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:06:45,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:06:45,071 INFO L87 Difference]: Start difference. First operand 563 states and 895 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:45,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:45,232 INFO L93 Difference]: Finished difference Result 1439 states and 2286 transitions. [2022-10-16 17:06:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:06:45,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:45,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:45,239 INFO L225 Difference]: With dead ends: 1439 [2022-10-16 17:06:45,239 INFO L226 Difference]: Without dead ends: 893 [2022-10-16 17:06:45,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:06:45,243 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 507 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:45,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 347 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2022-10-16 17:06:45,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 563. [2022-10-16 17:06:45,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 557 states have (on average 1.59245960502693) internal successors, (887), 562 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:45,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 887 transitions. [2022-10-16 17:06:45,314 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 887 transitions. Word has length 34 [2022-10-16 17:06:45,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:45,315 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 887 transitions. [2022-10-16 17:06:45,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:45,315 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 887 transitions. [2022-10-16 17:06:45,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:45,316 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:45,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:45,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 17:06:45,317 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:45,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:45,318 INFO L85 PathProgramCache]: Analyzing trace with hash 174250944, now seen corresponding path program 1 times [2022-10-16 17:06:45,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:45,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481324606] [2022-10-16 17:06:45,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:45,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:45,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:45,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:45,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481324606] [2022-10-16 17:06:45,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481324606] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:45,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:45,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:06:45,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38693676] [2022-10-16 17:06:45,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:45,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:06:45,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:45,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:06:45,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:06:45,420 INFO L87 Difference]: Start difference. First operand 563 states and 887 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:45,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:45,594 INFO L93 Difference]: Finished difference Result 1439 states and 2263 transitions. [2022-10-16 17:06:45,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:06:45,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:45,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:45,600 INFO L225 Difference]: With dead ends: 1439 [2022-10-16 17:06:45,600 INFO L226 Difference]: Without dead ends: 899 [2022-10-16 17:06:45,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:06:45,604 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 491 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:45,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 336 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:45,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-10-16 17:06:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 563. [2022-10-16 17:06:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 557 states have (on average 1.5780969479353681) internal successors, (879), 562 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:45,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 879 transitions. [2022-10-16 17:06:45,680 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 879 transitions. Word has length 34 [2022-10-16 17:06:45,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:45,682 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 879 transitions. [2022-10-16 17:06:45,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 879 transitions. [2022-10-16 17:06:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:45,684 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:45,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:45,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 17:06:45,684 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:45,685 INFO L85 PathProgramCache]: Analyzing trace with hash -412555070, now seen corresponding path program 1 times [2022-10-16 17:06:45,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:45,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495844650] [2022-10-16 17:06:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:45,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:45,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:45,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495844650] [2022-10-16 17:06:45,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495844650] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:45,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:45,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:06:45,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355455255] [2022-10-16 17:06:45,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:45,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:06:45,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:45,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:06:45,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:06:45,774 INFO L87 Difference]: Start difference. First operand 563 states and 879 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:45,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:45,913 INFO L93 Difference]: Finished difference Result 1358 states and 2113 transitions. [2022-10-16 17:06:45,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:06:45,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:45,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:45,919 INFO L225 Difference]: With dead ends: 1358 [2022-10-16 17:06:45,919 INFO L226 Difference]: Without dead ends: 812 [2022-10-16 17:06:45,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:06:45,921 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 503 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:45,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 366 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:45,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2022-10-16 17:06:45,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 611. [2022-10-16 17:06:45,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 605 states have (on average 1.5471074380165288) internal successors, (936), 610 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:45,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 936 transitions. [2022-10-16 17:06:45,998 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 936 transitions. Word has length 34 [2022-10-16 17:06:45,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:45,998 INFO L495 AbstractCegarLoop]: Abstraction has 611 states and 936 transitions. [2022-10-16 17:06:45,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:46,000 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 936 transitions. [2022-10-16 17:06:46,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 17:06:46,001 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:46,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:46,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 17:06:46,001 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:46,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:46,002 INFO L85 PathProgramCache]: Analyzing trace with hash 288509508, now seen corresponding path program 1 times [2022-10-16 17:06:46,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:46,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252877934] [2022-10-16 17:06:46,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:46,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:46,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:46,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:46,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252877934] [2022-10-16 17:06:46,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252877934] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:46,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:46,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:46,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610232844] [2022-10-16 17:06:46,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:46,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:46,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:46,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:46,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:46,080 INFO L87 Difference]: Start difference. First operand 611 states and 936 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:46,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:46,191 INFO L93 Difference]: Finished difference Result 1456 states and 2234 transitions. [2022-10-16 17:06:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:46,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 17:06:46,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:46,197 INFO L225 Difference]: With dead ends: 1456 [2022-10-16 17:06:46,197 INFO L226 Difference]: Without dead ends: 859 [2022-10-16 17:06:46,199 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 17:06:46,200 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 126 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:46,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 328 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:46,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2022-10-16 17:06:46,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 852. [2022-10-16 17:06:46,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 846 states have (on average 1.5319148936170213) internal successors, (1296), 851 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:46,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1296 transitions. [2022-10-16 17:06:46,285 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1296 transitions. Word has length 34 [2022-10-16 17:06:46,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:46,286 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1296 transitions. [2022-10-16 17:06:46,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:46,286 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1296 transitions. [2022-10-16 17:06:46,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 17:06:46,287 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:46,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:46,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 17:06:46,288 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:46,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:46,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1726712424, now seen corresponding path program 1 times [2022-10-16 17:06:46,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:46,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967943509] [2022-10-16 17:06:46,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:46,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:46,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:46,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967943509] [2022-10-16 17:06:46,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967943509] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:46,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:46,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:46,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752817084] [2022-10-16 17:06:46,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:46,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:46,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:46,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:46,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:46,330 INFO L87 Difference]: Start difference. First operand 852 states and 1296 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:46,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:46,513 INFO L93 Difference]: Finished difference Result 2151 states and 3303 transitions. [2022-10-16 17:06:46,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:46,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 17:06:46,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:46,523 INFO L225 Difference]: With dead ends: 2151 [2022-10-16 17:06:46,523 INFO L226 Difference]: Without dead ends: 1326 [2022-10-16 17:06:46,525 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 17:06:46,527 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 98 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:46,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 388 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:46,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-10-16 17:06:46,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1322. [2022-10-16 17:06:46,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1316 states have (on average 1.53419452887538) internal successors, (2019), 1321 states have internal predecessors, (2019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:46,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 2019 transitions. [2022-10-16 17:06:46,694 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 2019 transitions. Word has length 35 [2022-10-16 17:06:46,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:46,695 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 2019 transitions. [2022-10-16 17:06:46,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:46,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 2019 transitions. [2022-10-16 17:06:46,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 17:06:46,696 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:46,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:46,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 17:06:46,697 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:46,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:46,698 INFO L85 PathProgramCache]: Analyzing trace with hash -878205933, now seen corresponding path program 1 times [2022-10-16 17:06:46,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:46,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823309121] [2022-10-16 17:06:46,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:46,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:46,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:46,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823309121] [2022-10-16 17:06:46,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823309121] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:46,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:46,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:46,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999282154] [2022-10-16 17:06:46,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:46,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:46,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:46,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:46,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:46,750 INFO L87 Difference]: Start difference. First operand 1322 states and 2019 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:47,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:47,025 INFO L93 Difference]: Finished difference Result 3722 states and 5683 transitions. [2022-10-16 17:06:47,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:47,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-10-16 17:06:47,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:47,041 INFO L225 Difference]: With dead ends: 3722 [2022-10-16 17:06:47,042 INFO L226 Difference]: Without dead ends: 2428 [2022-10-16 17:06:47,045 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 17:06:47,046 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 137 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:47,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 336 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:47,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-10-16 17:06:47,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2388. [2022-10-16 17:06:47,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 2382 states have (on average 1.5218303946263645) internal successors, (3625), 2387 states have internal predecessors, (3625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3625 transitions. [2022-10-16 17:06:47,334 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3625 transitions. Word has length 36 [2022-10-16 17:06:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:47,334 INFO L495 AbstractCegarLoop]: Abstraction has 2388 states and 3625 transitions. [2022-10-16 17:06:47,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3625 transitions. [2022-10-16 17:06:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 17:06:47,335 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:47,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:47,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 17:06:47,336 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:47,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:47,336 INFO L85 PathProgramCache]: Analyzing trace with hash 224589607, now seen corresponding path program 1 times [2022-10-16 17:06:47,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:47,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503185678] [2022-10-16 17:06:47,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:47,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:47,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:47,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:47,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503185678] [2022-10-16 17:06:47,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503185678] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:47,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:47,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:47,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526888393] [2022-10-16 17:06:47,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:47,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:47,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:47,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:47,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:47,372 INFO L87 Difference]: Start difference. First operand 2388 states and 3625 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:47,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:47,871 INFO L93 Difference]: Finished difference Result 6174 states and 9457 transitions. [2022-10-16 17:06:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:47,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-10-16 17:06:47,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:47,894 INFO L225 Difference]: With dead ends: 6174 [2022-10-16 17:06:47,894 INFO L226 Difference]: Without dead ends: 3834 [2022-10-16 17:06:47,899 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 17:06:47,900 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 86 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:47,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 430 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:47,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3834 states. [2022-10-16 17:06:48,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3834 to 3830. [2022-10-16 17:06:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3830 states, 3824 states have (on average 1.525889121338912) internal successors, (5835), 3829 states have internal predecessors, (5835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3830 states to 3830 states and 5835 transitions. [2022-10-16 17:06:48,388 INFO L78 Accepts]: Start accepts. Automaton has 3830 states and 5835 transitions. Word has length 37 [2022-10-16 17:06:48,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:48,388 INFO L495 AbstractCegarLoop]: Abstraction has 3830 states and 5835 transitions. [2022-10-16 17:06:48,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:48,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3830 states and 5835 transitions. [2022-10-16 17:06:48,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 17:06:48,390 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:48,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:48,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 17:06:48,390 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:48,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:48,391 INFO L85 PathProgramCache]: Analyzing trace with hash 152203049, now seen corresponding path program 1 times [2022-10-16 17:06:48,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:48,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623211248] [2022-10-16 17:06:48,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:48,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:48,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:48,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623211248] [2022-10-16 17:06:48,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623211248] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:48,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:48,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:48,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708575598] [2022-10-16 17:06:48,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:48,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:48,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:48,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:48,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:48,431 INFO L87 Difference]: Start difference. First operand 3830 states and 5835 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:48,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:48,744 INFO L93 Difference]: Finished difference Result 6114 states and 9358 transitions. [2022-10-16 17:06:48,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:48,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-10-16 17:06:48,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:48,757 INFO L225 Difference]: With dead ends: 6114 [2022-10-16 17:06:48,757 INFO L226 Difference]: Without dead ends: 2334 [2022-10-16 17:06:48,763 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 17:06:48,764 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 185 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:48,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 188 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:48,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2334 states. [2022-10-16 17:06:49,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2334 to 2334. [2022-10-16 17:06:49,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2334 states, 2328 states have (on average 1.5378006872852235) internal successors, (3580), 2333 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:49,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 3580 transitions. [2022-10-16 17:06:49,054 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 3580 transitions. Word has length 37 [2022-10-16 17:06:49,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:49,055 INFO L495 AbstractCegarLoop]: Abstraction has 2334 states and 3580 transitions. [2022-10-16 17:06:49,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 3580 transitions. [2022-10-16 17:06:49,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 17:06:49,056 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:49,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:49,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 17:06:49,056 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:49,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:49,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1639609974, now seen corresponding path program 1 times [2022-10-16 17:06:49,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:49,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244794461] [2022-10-16 17:06:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:49,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:49,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:49,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:49,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244794461] [2022-10-16 17:06:49,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244794461] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:49,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:49,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:49,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270010187] [2022-10-16 17:06:49,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:49,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:49,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:49,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:49,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:49,096 INFO L87 Difference]: Start difference. First operand 2334 states and 3580 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:49,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:49,636 INFO L93 Difference]: Finished difference Result 6538 states and 9988 transitions. [2022-10-16 17:06:49,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:49,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 17:06:49,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:49,659 INFO L225 Difference]: With dead ends: 6538 [2022-10-16 17:06:49,659 INFO L226 Difference]: Without dead ends: 4234 [2022-10-16 17:06:49,664 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 17:06:49,665 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 132 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:49,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 333 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:49,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2022-10-16 17:06:50,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 4142. [2022-10-16 17:06:50,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4142 states, 4136 states have (on average 1.519100580270793) internal successors, (6283), 4141 states have internal predecessors, (6283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:50,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4142 states to 4142 states and 6283 transitions. [2022-10-16 17:06:50,148 INFO L78 Accepts]: Start accepts. Automaton has 4142 states and 6283 transitions. Word has length 38 [2022-10-16 17:06:50,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:50,149 INFO L495 AbstractCegarLoop]: Abstraction has 4142 states and 6283 transitions. [2022-10-16 17:06:50,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:50,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4142 states and 6283 transitions. [2022-10-16 17:06:50,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 17:06:50,150 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:50,151 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:50,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 17:06:50,151 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:50,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:50,152 INFO L85 PathProgramCache]: Analyzing trace with hash -397657078, now seen corresponding path program 1 times [2022-10-16 17:06:50,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:50,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852097766] [2022-10-16 17:06:50,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:50,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:50,193 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 17:06:50,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:50,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852097766] [2022-10-16 17:06:50,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852097766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:50,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:50,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:50,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468219306] [2022-10-16 17:06:50,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:50,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:50,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:50,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:50,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:50,195 INFO L87 Difference]: Start difference. First operand 4142 states and 6283 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:50,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:50,637 INFO L93 Difference]: Finished difference Result 8575 states and 13109 transitions. [2022-10-16 17:06:50,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:50,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) Word has length 46 [2022-10-16 17:06:50,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:50,663 INFO L225 Difference]: With dead ends: 8575 [2022-10-16 17:06:50,663 INFO L226 Difference]: Without dead ends: 4483 [2022-10-16 17:06:50,718 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 17:06:50,719 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 82 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:50,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 337 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:50,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4483 states. [2022-10-16 17:06:51,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4483 to 4479. [2022-10-16 17:06:51,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4479 states, 4473 states have (on average 1.520232506147999) internal successors, (6800), 4478 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:51,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4479 states to 4479 states and 6800 transitions. [2022-10-16 17:06:51,227 INFO L78 Accepts]: Start accepts. Automaton has 4479 states and 6800 transitions. Word has length 46 [2022-10-16 17:06:51,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:51,228 INFO L495 AbstractCegarLoop]: Abstraction has 4479 states and 6800 transitions. [2022-10-16 17:06:51,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:51,228 INFO L276 IsEmpty]: Start isEmpty. Operand 4479 states and 6800 transitions. [2022-10-16 17:06:51,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 17:06:51,230 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:51,230 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:51,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 17:06:51,231 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:51,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:51,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1790419525, now seen corresponding path program 1 times [2022-10-16 17:06:51,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:51,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377243001] [2022-10-16 17:06:51,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:51,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:51,270 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 17:06:51,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:51,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377243001] [2022-10-16 17:06:51,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377243001] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:51,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:51,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:51,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188049961] [2022-10-16 17:06:51,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:51,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:51,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:51,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:51,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:51,273 INFO L87 Difference]: Start difference. First operand 4479 states and 6800 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 17:06:52,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:52,025 INFO L93 Difference]: Finished difference Result 12283 states and 18786 transitions. [2022-10-16 17:06:52,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:52,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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) Word has length 47 [2022-10-16 17:06:52,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:52,047 INFO L225 Difference]: With dead ends: 12283 [2022-10-16 17:06:52,048 INFO L226 Difference]: Without dead ends: 7854 [2022-10-16 17:06:52,055 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 17:06:52,056 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 90 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:52,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 421 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:52,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7854 states. [2022-10-16 17:06:52,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7854 to 7848. [2022-10-16 17:06:52,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7848 states, 7842 states have (on average 1.520020402958429) internal successors, (11920), 7847 states have internal predecessors, (11920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:52,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7848 states to 7848 states and 11920 transitions. [2022-10-16 17:06:52,781 INFO L78 Accepts]: Start accepts. Automaton has 7848 states and 11920 transitions. Word has length 47 [2022-10-16 17:06:52,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:52,781 INFO L495 AbstractCegarLoop]: Abstraction has 7848 states and 11920 transitions. [2022-10-16 17:06:52,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 17:06:52,781 INFO L276 IsEmpty]: Start isEmpty. Operand 7848 states and 11920 transitions. [2022-10-16 17:06:52,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 17:06:52,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:52,783 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:52,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 17:06:52,784 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:52,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:52,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1366772803, now seen corresponding path program 1 times [2022-10-16 17:06:52,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:52,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577178424] [2022-10-16 17:06:52,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:52,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:52,811 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 17:06:52,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:52,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577178424] [2022-10-16 17:06:52,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577178424] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:52,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:52,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:06:52,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155264496] [2022-10-16 17:06:52,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:52,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:06:52,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:52,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:06:52,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:06:52,814 INFO L87 Difference]: Start difference. First operand 7848 states and 11920 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:53,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:53,592 INFO L93 Difference]: Finished difference Result 15606 states and 23743 transitions. [2022-10-16 17:06:53,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:06:53,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-10-16 17:06:53,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:53,617 INFO L225 Difference]: With dead ends: 15606 [2022-10-16 17:06:53,618 INFO L226 Difference]: Without dead ends: 7808 [2022-10-16 17:06:53,629 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 17:06:53,631 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 180 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:53,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 185 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:53,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7808 states. [2022-10-16 17:06:54,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7808 to 7808. [2022-10-16 17:06:54,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7808 states, 7802 states have (on average 1.522173801589336) internal successors, (11876), 7807 states have internal predecessors, (11876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7808 states to 7808 states and 11876 transitions. [2022-10-16 17:06:54,543 INFO L78 Accepts]: Start accepts. Automaton has 7808 states and 11876 transitions. Word has length 47 [2022-10-16 17:06:54,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:54,544 INFO L495 AbstractCegarLoop]: Abstraction has 7808 states and 11876 transitions. [2022-10-16 17:06:54,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:54,544 INFO L276 IsEmpty]: Start isEmpty. Operand 7808 states and 11876 transitions. [2022-10-16 17:06:54,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 17:06:54,546 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:54,547 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:54,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 17:06:54,547 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:54,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:54,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2071230874, now seen corresponding path program 1 times [2022-10-16 17:06:54,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:54,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469908171] [2022-10-16 17:06:54,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:54,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:54,626 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 17:06:54,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:54,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469908171] [2022-10-16 17:06:54,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469908171] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:54,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:54,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:06:54,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224808281] [2022-10-16 17:06:54,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:54,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:06:54,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:54,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:06:54,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:06:54,630 INFO L87 Difference]: Start difference. First operand 7808 states and 11876 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:55,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:55,553 INFO L93 Difference]: Finished difference Result 14039 states and 21424 transitions. [2022-10-16 17:06:55,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:06:55,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-16 17:06:55,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:55,574 INFO L225 Difference]: With dead ends: 14039 [2022-10-16 17:06:55,574 INFO L226 Difference]: Without dead ends: 7570 [2022-10-16 17:06:55,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:06:55,585 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 354 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:55,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 377 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:55,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7570 states. [2022-10-16 17:06:56,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7570 to 7566. [2022-10-16 17:06:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7566 states, 7560 states have (on average 1.4936507936507937) internal successors, (11292), 7565 states have internal predecessors, (11292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7566 states to 7566 states and 11292 transitions. [2022-10-16 17:06:56,460 INFO L78 Accepts]: Start accepts. Automaton has 7566 states and 11292 transitions. Word has length 48 [2022-10-16 17:06:56,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:56,460 INFO L495 AbstractCegarLoop]: Abstraction has 7566 states and 11292 transitions. [2022-10-16 17:06:56,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:56,461 INFO L276 IsEmpty]: Start isEmpty. Operand 7566 states and 11292 transitions. [2022-10-16 17:06:56,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 17:06:56,463 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:56,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:56,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 17:06:56,464 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:56,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:56,464 INFO L85 PathProgramCache]: Analyzing trace with hash -229518593, now seen corresponding path program 1 times [2022-10-16 17:06:56,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:56,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663380274] [2022-10-16 17:06:56,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:56,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:56,531 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:56,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:56,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663380274] [2022-10-16 17:06:56,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663380274] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:56,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:56,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:06:56,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687028775] [2022-10-16 17:06:56,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:56,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:06:56,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:56,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:06:56,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:06:56,534 INFO L87 Difference]: Start difference. First operand 7566 states and 11292 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:57,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:57,114 INFO L93 Difference]: Finished difference Result 12870 states and 19297 transitions. [2022-10-16 17:06:57,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:06:57,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-10-16 17:06:57,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:57,143 INFO L225 Difference]: With dead ends: 12870 [2022-10-16 17:06:57,144 INFO L226 Difference]: Without dead ends: 6690 [2022-10-16 17:06:57,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:06:57,155 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 309 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:57,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 365 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:57,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6690 states. [2022-10-16 17:06:57,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6690 to 6686. [2022-10-16 17:06:57,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6686 states, 6680 states have (on average 1.4718562874251497) internal successors, (9832), 6685 states have internal predecessors, (9832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6686 states to 6686 states and 9832 transitions. [2022-10-16 17:06:57,874 INFO L78 Accepts]: Start accepts. Automaton has 6686 states and 9832 transitions. Word has length 51 [2022-10-16 17:06:57,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:57,874 INFO L495 AbstractCegarLoop]: Abstraction has 6686 states and 9832 transitions. [2022-10-16 17:06:57,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 6686 states and 9832 transitions. [2022-10-16 17:06:57,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 17:06:57,877 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:57,878 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:57,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 17:06:57,878 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:57,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:57,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1280667850, now seen corresponding path program 1 times [2022-10-16 17:06:57,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:57,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745924036] [2022-10-16 17:06:57,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:57,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:57,951 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:06:57,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:57,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745924036] [2022-10-16 17:06:57,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745924036] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:57,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:57,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:06:57,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899209539] [2022-10-16 17:06:57,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:57,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:06:57,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:57,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:06:57,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:06:57,954 INFO L87 Difference]: Start difference. First operand 6686 states and 9832 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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 17:06:58,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:58,506 INFO L93 Difference]: Finished difference Result 11677 states and 17282 transitions. [2022-10-16 17:06:58,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:06:58,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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) Word has length 53 [2022-10-16 17:06:58,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:58,519 INFO L225 Difference]: With dead ends: 11677 [2022-10-16 17:06:58,519 INFO L226 Difference]: Without dead ends: 5645 [2022-10-16 17:06:58,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:06:58,529 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 307 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:58,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 368 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:58,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5645 states. [2022-10-16 17:06:59,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5645 to 5641. [2022-10-16 17:06:59,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5641 states, 5635 states have (on average 1.4803904170363797) internal successors, (8342), 5640 states have internal predecessors, (8342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:59,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5641 states to 5641 states and 8342 transitions. [2022-10-16 17:06:59,183 INFO L78 Accepts]: Start accepts. Automaton has 5641 states and 8342 transitions. Word has length 53 [2022-10-16 17:06:59,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:59,184 INFO L495 AbstractCegarLoop]: Abstraction has 5641 states and 8342 transitions. [2022-10-16 17:06:59,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 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 17:06:59,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5641 states and 8342 transitions. [2022-10-16 17:06:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 17:06:59,186 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:06:59,186 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:06:59,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 17:06:59,187 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:06:59,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:06:59,187 INFO L85 PathProgramCache]: Analyzing trace with hash -308936793, now seen corresponding path program 1 times [2022-10-16 17:06:59,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:06:59,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912183877] [2022-10-16 17:06:59,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:06:59,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:06:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:06:59,279 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 17:06:59,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:06:59,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912183877] [2022-10-16 17:06:59,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912183877] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:06:59,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:06:59,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:06:59,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277360852] [2022-10-16 17:06:59,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:06:59,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:06:59,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:06:59,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:06:59,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:06:59,282 INFO L87 Difference]: Start difference. First operand 5641 states and 8342 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:06:59,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:59,958 INFO L93 Difference]: Finished difference Result 10154 states and 14745 transitions. [2022-10-16 17:06:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:06:59,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-16 17:06:59,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:59,970 INFO L225 Difference]: With dead ends: 10154 [2022-10-16 17:06:59,970 INFO L226 Difference]: Without dead ends: 4534 [2022-10-16 17:06:59,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:06:59,979 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 690 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:59,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 520 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:06:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4534 states. [2022-10-16 17:07:00,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4534 to 3435. [2022-10-16 17:07:00,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3435 states, 3429 states have (on average 1.3928258967629046) internal successors, (4776), 3434 states have internal predecessors, (4776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:00,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 4776 transitions. [2022-10-16 17:07:00,379 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 4776 transitions. Word has length 54 [2022-10-16 17:07:00,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:00,380 INFO L495 AbstractCegarLoop]: Abstraction has 3435 states and 4776 transitions. [2022-10-16 17:07:00,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:00,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 4776 transitions. [2022-10-16 17:07:00,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 17:07:00,383 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:00,383 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:00,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 17:07:00,384 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:00,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:00,384 INFO L85 PathProgramCache]: Analyzing trace with hash -463980605, now seen corresponding path program 1 times [2022-10-16 17:07:00,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:00,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482839872] [2022-10-16 17:07:00,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:00,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:00,435 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:07:00,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:00,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482839872] [2022-10-16 17:07:00,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482839872] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:00,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:07:00,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:07:00,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057531817] [2022-10-16 17:07:00,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:00,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:07:00,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:00,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:07:00,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:07:00,438 INFO L87 Difference]: Start difference. First operand 3435 states and 4776 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:00,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:00,928 INFO L93 Difference]: Finished difference Result 6340 states and 8917 transitions. [2022-10-16 17:07:00,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:07:00,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-10-16 17:07:00,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:00,933 INFO L225 Difference]: With dead ends: 6340 [2022-10-16 17:07:00,933 INFO L226 Difference]: Without dead ends: 3439 [2022-10-16 17:07:00,936 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 17:07:00,937 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 122 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:00,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 276 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:07:00,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2022-10-16 17:07:01,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 3435. [2022-10-16 17:07:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3435 states, 3429 states have (on average 1.3616214639836688) internal successors, (4669), 3434 states have internal predecessors, (4669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:01,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 4669 transitions. [2022-10-16 17:07:01,320 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 4669 transitions. Word has length 88 [2022-10-16 17:07:01,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:01,320 INFO L495 AbstractCegarLoop]: Abstraction has 3435 states and 4669 transitions. [2022-10-16 17:07:01,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:01,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 4669 transitions. [2022-10-16 17:07:01,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 17:07:01,323 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:01,323 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:01,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 17:07:01,324 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:01,324 INFO L85 PathProgramCache]: Analyzing trace with hash 354363720, now seen corresponding path program 1 times [2022-10-16 17:07:01,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:01,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802497577] [2022-10-16 17:07:01,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:01,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:01,371 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:07:01,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:01,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802497577] [2022-10-16 17:07:01,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802497577] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:01,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:07:01,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:07:01,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459505642] [2022-10-16 17:07:01,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:01,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:07:01,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:01,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:07:01,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:07:01,374 INFO L87 Difference]: Start difference. First operand 3435 states and 4669 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:01,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:01,820 INFO L93 Difference]: Finished difference Result 6340 states and 8703 transitions. [2022-10-16 17:07:01,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:07:01,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-10-16 17:07:01,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:01,826 INFO L225 Difference]: With dead ends: 6340 [2022-10-16 17:07:01,826 INFO L226 Difference]: Without dead ends: 3439 [2022-10-16 17:07:01,834 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 17:07:01,835 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 123 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:01,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 277 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:07:01,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2022-10-16 17:07:02,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 3435. [2022-10-16 17:07:02,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3435 states, 3429 states have (on average 1.3275007290755323) internal successors, (4552), 3434 states have internal predecessors, (4552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:02,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 4552 transitions. [2022-10-16 17:07:02,293 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 4552 transitions. Word has length 89 [2022-10-16 17:07:02,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:02,294 INFO L495 AbstractCegarLoop]: Abstraction has 3435 states and 4552 transitions. [2022-10-16 17:07:02,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:02,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 4552 transitions. [2022-10-16 17:07:02,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 17:07:02,298 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:02,299 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:02,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-16 17:07:02,306 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:02,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:02,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1315687361, now seen corresponding path program 1 times [2022-10-16 17:07:02,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:02,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490323626] [2022-10-16 17:07:02,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:02,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:07:02,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:02,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490323626] [2022-10-16 17:07:02,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490323626] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:02,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:07:02,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:07:02,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143547068] [2022-10-16 17:07:02,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:02,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:07:02,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:02,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:07:02,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:07:02,369 INFO L87 Difference]: Start difference. First operand 3435 states and 4552 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:02,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:02,807 INFO L93 Difference]: Finished difference Result 6979 states and 9248 transitions. [2022-10-16 17:07:02,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:07:02,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-10-16 17:07:02,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:02,814 INFO L225 Difference]: With dead ends: 6979 [2022-10-16 17:07:02,814 INFO L226 Difference]: Without dead ends: 3571 [2022-10-16 17:07:02,819 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 17:07:02,819 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 129 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:02,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 275 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:07:02,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2022-10-16 17:07:03,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3257. [2022-10-16 17:07:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3257 states, 3251 states have (on average 1.2780682866810211) internal successors, (4155), 3256 states have internal predecessors, (4155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:03,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3257 states to 3257 states and 4155 transitions. [2022-10-16 17:07:03,133 INFO L78 Accepts]: Start accepts. Automaton has 3257 states and 4155 transitions. Word has length 90 [2022-10-16 17:07:03,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:03,133 INFO L495 AbstractCegarLoop]: Abstraction has 3257 states and 4155 transitions. [2022-10-16 17:07:03,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:03,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3257 states and 4155 transitions. [2022-10-16 17:07:03,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 17:07:03,136 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:03,136 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:03,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-10-16 17:07:03,136 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:03,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:03,137 INFO L85 PathProgramCache]: Analyzing trace with hash -843763382, now seen corresponding path program 1 times [2022-10-16 17:07:03,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:03,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250380289] [2022-10-16 17:07:03,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:03,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:03,216 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:07:03,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:03,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250380289] [2022-10-16 17:07:03,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250380289] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:03,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:07:03,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:07:03,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407808887] [2022-10-16 17:07:03,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:03,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:07:03,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:03,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:07:03,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:07:03,219 INFO L87 Difference]: Start difference. First operand 3257 states and 4155 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:03,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:03,776 INFO L93 Difference]: Finished difference Result 6522 states and 8337 transitions. [2022-10-16 17:07:03,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:07:03,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 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 91 [2022-10-16 17:07:03,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:03,783 INFO L225 Difference]: With dead ends: 6522 [2022-10-16 17:07:03,783 INFO L226 Difference]: Without dead ends: 3569 [2022-10-16 17:07:03,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:07:03,786 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 424 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:03,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 464 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:07:03,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3569 states. [2022-10-16 17:07:04,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3569 to 3266. [2022-10-16 17:07:04,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3266 states, 3260 states have (on average 1.2598159509202453) internal successors, (4107), 3265 states have internal predecessors, (4107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:04,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3266 states to 3266 states and 4107 transitions. [2022-10-16 17:07:04,178 INFO L78 Accepts]: Start accepts. Automaton has 3266 states and 4107 transitions. Word has length 91 [2022-10-16 17:07:04,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:04,178 INFO L495 AbstractCegarLoop]: Abstraction has 3266 states and 4107 transitions. [2022-10-16 17:07:04,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:04,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3266 states and 4107 transitions. [2022-10-16 17:07:04,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 17:07:04,182 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:04,182 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:04,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-10-16 17:07:04,182 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:04,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:04,183 INFO L85 PathProgramCache]: Analyzing trace with hash 997093893, now seen corresponding path program 1 times [2022-10-16 17:07:04,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:04,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139676914] [2022-10-16 17:07:04,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:04,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:04,282 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:07:04,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:04,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139676914] [2022-10-16 17:07:04,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139676914] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:07:04,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774565440] [2022-10-16 17:07:04,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:04,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:04,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:07:04,291 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:07:04,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 17:07:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:04,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:07:04,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:07:04,600 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:07:04,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:07:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:07:04,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774565440] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:07:04,748 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:07:04,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-10-16 17:07:04,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612640570] [2022-10-16 17:07:04,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:07:04,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:07:04,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:04,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:07:04,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:07:04,751 INFO L87 Difference]: Start difference. First operand 3266 states and 4107 transitions. Second operand has 8 states, 7 states have (on average 41.285714285714285) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:06,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:06,200 INFO L93 Difference]: Finished difference Result 9106 states and 11345 transitions. [2022-10-16 17:07:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 17:07:06,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 41.285714285714285) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 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 104 [2022-10-16 17:07:06,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:06,210 INFO L225 Difference]: With dead ends: 9106 [2022-10-16 17:07:06,210 INFO L226 Difference]: Without dead ends: 9012 [2022-10-16 17:07:06,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:07:06,216 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 751 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:06,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 951 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:07:06,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9012 states. [2022-10-16 17:07:06,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9012 to 5938. [2022-10-16 17:07:06,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5938 states, 5932 states have (on average 1.2412339851652057) internal successors, (7363), 5937 states have internal predecessors, (7363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5938 states to 5938 states and 7363 transitions. [2022-10-16 17:07:06,898 INFO L78 Accepts]: Start accepts. Automaton has 5938 states and 7363 transitions. Word has length 104 [2022-10-16 17:07:06,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:06,899 INFO L495 AbstractCegarLoop]: Abstraction has 5938 states and 7363 transitions. [2022-10-16 17:07:06,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 41.285714285714285) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5938 states and 7363 transitions. [2022-10-16 17:07:06,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 17:07:06,906 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:06,906 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:06,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 17:07:07,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 17:07:07,120 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:07,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:07,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1066170770, now seen corresponding path program 1 times [2022-10-16 17:07:07,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:07,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781586690] [2022-10-16 17:07:07,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:07,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:07:07,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:07,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781586690] [2022-10-16 17:07:07,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781586690] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:07:07,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780595774] [2022-10-16 17:07:07,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:07,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:07,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:07:07,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:07:07,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 17:07:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:07,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:07:07,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:07:07,390 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 17:07:07,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:07:07,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780595774] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:07,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:07:07,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 17:07:07,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143106388] [2022-10-16 17:07:07,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:07,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:07:07,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:07,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:07:07,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:07:07,394 INFO L87 Difference]: Start difference. First operand 5938 states and 7363 transitions. Second operand has 3 states, 2 states have (on average 54.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:08,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:08,636 INFO L93 Difference]: Finished difference Result 7645 states and 9468 transitions. [2022-10-16 17:07:08,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:07:08,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 54.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 118 [2022-10-16 17:07:08,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:08,645 INFO L225 Difference]: With dead ends: 7645 [2022-10-16 17:07:08,645 INFO L226 Difference]: Without dead ends: 7486 [2022-10-16 17:07:08,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:07:08,648 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 145 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:08,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 323 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:07:08,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7486 states. [2022-10-16 17:07:09,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7486 to 5836. [2022-10-16 17:07:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5836 states, 5830 states have (on average 1.246483704974271) internal successors, (7267), 5835 states have internal predecessors, (7267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:09,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5836 states to 5836 states and 7267 transitions. [2022-10-16 17:07:09,329 INFO L78 Accepts]: Start accepts. Automaton has 5836 states and 7267 transitions. Word has length 118 [2022-10-16 17:07:09,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:09,330 INFO L495 AbstractCegarLoop]: Abstraction has 5836 states and 7267 transitions. [2022-10-16 17:07:09,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 54.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:09,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5836 states and 7267 transitions. [2022-10-16 17:07:09,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 17:07:09,337 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:09,337 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:09,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 17:07:09,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:09,551 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:09,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:09,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1209714193, now seen corresponding path program 1 times [2022-10-16 17:07:09,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:09,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165108807] [2022-10-16 17:07:09,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:09,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:07:09,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:09,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165108807] [2022-10-16 17:07:09,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165108807] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:09,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:07:09,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:07:09,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698720264] [2022-10-16 17:07:09,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:09,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:07:09,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:09,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:07:09,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:07:09,603 INFO L87 Difference]: Start difference. First operand 5836 states and 7267 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:10,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:10,311 INFO L93 Difference]: Finished difference Result 11494 states and 14319 transitions. [2022-10-16 17:07:10,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:07:10,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-10-16 17:07:10,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:10,319 INFO L225 Difference]: With dead ends: 11494 [2022-10-16 17:07:10,319 INFO L226 Difference]: Without dead ends: 5819 [2022-10-16 17:07:10,324 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 17:07:10,325 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 16 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:10,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 305 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:07:10,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5819 states. [2022-10-16 17:07:11,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5819 to 5819. [2022-10-16 17:07:11,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5819 states, 5813 states have (on average 1.2442800619301566) internal successors, (7233), 5818 states have internal predecessors, (7233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:11,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5819 states to 5819 states and 7233 transitions. [2022-10-16 17:07:11,010 INFO L78 Accepts]: Start accepts. Automaton has 5819 states and 7233 transitions. Word has length 120 [2022-10-16 17:07:11,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:11,011 INFO L495 AbstractCegarLoop]: Abstraction has 5819 states and 7233 transitions. [2022-10-16 17:07:11,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:11,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5819 states and 7233 transitions. [2022-10-16 17:07:11,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-16 17:07:11,015 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:11,016 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:11,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-10-16 17:07:11,016 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:11,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash 412337901, now seen corresponding path program 1 times [2022-10-16 17:07:11,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:11,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043813946] [2022-10-16 17:07:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:11,166 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:07:11,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:11,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043813946] [2022-10-16 17:07:11,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043813946] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:11,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:07:11,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:07:11,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790817152] [2022-10-16 17:07:11,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:11,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:07:11,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:11,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:07:11,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:07:11,170 INFO L87 Difference]: Start difference. First operand 5819 states and 7233 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:11,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:11,791 INFO L93 Difference]: Finished difference Result 8500 states and 10605 transitions. [2022-10-16 17:07:11,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:07:11,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 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 17:07:11,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:11,796 INFO L225 Difference]: With dead ends: 8500 [2022-10-16 17:07:11,797 INFO L226 Difference]: Without dead ends: 3065 [2022-10-16 17:07:11,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:07:11,802 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 324 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:11,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 304 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:07:11,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2022-10-16 17:07:12,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 3051. [2022-10-16 17:07:12,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 3045 states have (on average 1.2213464696223317) internal successors, (3719), 3050 states have internal predecessors, (3719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:12,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 3719 transitions. [2022-10-16 17:07:12,208 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 3719 transitions. Word has length 133 [2022-10-16 17:07:12,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:12,208 INFO L495 AbstractCegarLoop]: Abstraction has 3051 states and 3719 transitions. [2022-10-16 17:07:12,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:12,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 3719 transitions. [2022-10-16 17:07:12,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-10-16 17:07:12,211 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:12,211 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:12,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-10-16 17:07:12,211 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:12,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:12,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2127134368, now seen corresponding path program 1 times [2022-10-16 17:07:12,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:12,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125235267] [2022-10-16 17:07:12,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:12,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:12,267 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 17:07:12,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:12,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125235267] [2022-10-16 17:07:12,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125235267] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:12,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:07:12,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:07:12,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433667747] [2022-10-16 17:07:12,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:12,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:07:12,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:12,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:07:12,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:07:12,269 INFO L87 Difference]: Start difference. First operand 3051 states and 3719 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:12,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:12,657 INFO L93 Difference]: Finished difference Result 5582 states and 6854 transitions. [2022-10-16 17:07:12,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:07:12,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 184 [2022-10-16 17:07:12,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:12,663 INFO L225 Difference]: With dead ends: 5582 [2022-10-16 17:07:12,663 INFO L226 Difference]: Without dead ends: 2987 [2022-10-16 17:07:12,667 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 17:07:12,667 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:12,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 316 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:07:12,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2022-10-16 17:07:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2899. [2022-10-16 17:07:12,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2899 states, 2893 states have (on average 1.2129277566539924) internal successors, (3509), 2898 states have internal predecessors, (3509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:13,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 3509 transitions. [2022-10-16 17:07:13,000 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 3509 transitions. Word has length 184 [2022-10-16 17:07:13,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:13,001 INFO L495 AbstractCegarLoop]: Abstraction has 2899 states and 3509 transitions. [2022-10-16 17:07:13,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:13,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 3509 transitions. [2022-10-16 17:07:13,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-10-16 17:07:13,003 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:13,004 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:13,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-10-16 17:07:13,004 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:13,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:13,005 INFO L85 PathProgramCache]: Analyzing trace with hash -445202158, now seen corresponding path program 1 times [2022-10-16 17:07:13,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:13,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619968937] [2022-10-16 17:07:13,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:13,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 17:07:13,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:13,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619968937] [2022-10-16 17:07:13,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619968937] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:13,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:07:13,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:07:13,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699196679] [2022-10-16 17:07:13,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:13,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:07:13,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:13,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:07:13,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:07:13,067 INFO L87 Difference]: Start difference. First operand 2899 states and 3509 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:13,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:13,475 INFO L93 Difference]: Finished difference Result 5643 states and 6839 transitions. [2022-10-16 17:07:13,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:07:13,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 191 [2022-10-16 17:07:13,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:13,479 INFO L225 Difference]: With dead ends: 5643 [2022-10-16 17:07:13,479 INFO L226 Difference]: Without dead ends: 3194 [2022-10-16 17:07:13,481 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 17:07:13,481 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 151 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:13,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 306 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:07:13,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2022-10-16 17:07:13,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2780. [2022-10-16 17:07:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2774 states have (on average 1.1896178803172315) internal successors, (3300), 2779 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:13,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 3300 transitions. [2022-10-16 17:07:13,791 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 3300 transitions. Word has length 191 [2022-10-16 17:07:13,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:13,791 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 3300 transitions. [2022-10-16 17:07:13,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:13,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 3300 transitions. [2022-10-16 17:07:13,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-10-16 17:07:13,793 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:13,793 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:13,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-10-16 17:07:13,793 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:13,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:13,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1255141125, now seen corresponding path program 1 times [2022-10-16 17:07:13,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:13,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918621044] [2022-10-16 17:07:13,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:13,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:13,957 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 17:07:13,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:13,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918621044] [2022-10-16 17:07:13,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918621044] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:07:13,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957550851] [2022-10-16 17:07:13,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:13,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:13,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:07:13,959 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:07:13,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 17:07:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:14,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:07:14,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:07:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 17:07:14,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:07:14,565 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 17:07:14,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957550851] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:07:14,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:07:14,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-10-16 17:07:14,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732695306] [2022-10-16 17:07:14,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:07:14,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 17:07:14,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:14,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 17:07:14,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:07:14,568 INFO L87 Difference]: Start difference. First operand 2780 states and 3300 transitions. Second operand has 11 states, 10 states have (on average 54.7) internal successors, (547), 11 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:15,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:15,459 INFO L93 Difference]: Finished difference Result 4085 states and 4797 transitions. [2022-10-16 17:07:15,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:07:15,460 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 54.7) internal successors, (547), 11 states have internal predecessors, (547), 0 states have call successors, (0), 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 196 [2022-10-16 17:07:15,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:15,467 INFO L225 Difference]: With dead ends: 4085 [2022-10-16 17:07:15,468 INFO L226 Difference]: Without dead ends: 4083 [2022-10-16 17:07:15,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 386 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-10-16 17:07:15,471 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 658 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:15,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1677 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:07:15,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2022-10-16 17:07:15,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 3456. [2022-10-16 17:07:15,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3456 states, 3450 states have (on average 1.18) internal successors, (4071), 3455 states have internal predecessors, (4071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:15,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3456 states to 3456 states and 4071 transitions. [2022-10-16 17:07:15,949 INFO L78 Accepts]: Start accepts. Automaton has 3456 states and 4071 transitions. Word has length 196 [2022-10-16 17:07:15,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:15,950 INFO L495 AbstractCegarLoop]: Abstraction has 3456 states and 4071 transitions. [2022-10-16 17:07:15,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 54.7) internal successors, (547), 11 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:15,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3456 states and 4071 transitions. [2022-10-16 17:07:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-10-16 17:07:15,952 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:15,952 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:15,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 17:07:16,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:16,154 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:16,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:16,155 INFO L85 PathProgramCache]: Analyzing trace with hash 326179882, now seen corresponding path program 1 times [2022-10-16 17:07:16,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:16,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312959439] [2022-10-16 17:07:16,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:16,231 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 17:07:16,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:16,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312959439] [2022-10-16 17:07:16,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312959439] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:16,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:07:16,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:07:16,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635899869] [2022-10-16 17:07:16,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:16,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:07:16,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:16,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:07:16,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:07:16,234 INFO L87 Difference]: Start difference. First operand 3456 states and 4071 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:16,506 INFO L93 Difference]: Finished difference Result 3967 states and 4652 transitions. [2022-10-16 17:07:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:07:16,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 209 [2022-10-16 17:07:16,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:16,509 INFO L225 Difference]: With dead ends: 3967 [2022-10-16 17:07:16,509 INFO L226 Difference]: Without dead ends: 1676 [2022-10-16 17:07:16,511 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 17:07:16,511 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 34 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:16,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 313 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:07:16,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-10-16 17:07:16,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2022-10-16 17:07:16,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1670 states have (on average 1.1251497005988025) internal successors, (1879), 1675 states have internal predecessors, (1879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:16,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 1879 transitions. [2022-10-16 17:07:16,776 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 1879 transitions. Word has length 209 [2022-10-16 17:07:16,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:16,776 INFO L495 AbstractCegarLoop]: Abstraction has 1676 states and 1879 transitions. [2022-10-16 17:07:16,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:16,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 1879 transitions. [2022-10-16 17:07:16,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-10-16 17:07:16,778 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:16,779 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:16,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-10-16 17:07:16,779 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1948057779, now seen corresponding path program 1 times [2022-10-16 17:07:16,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:16,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803012984] [2022-10-16 17:07:16,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:16,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 17:07:17,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:17,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803012984] [2022-10-16 17:07:17,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803012984] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:07:17,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351908577] [2022-10-16 17:07:17,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:17,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:17,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:07:17,326 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:07:17,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 17:07:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:17,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 17:07:17,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:07:17,705 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 104 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:07:17,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:07:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 104 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:07:17,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351908577] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:07:17,958 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:07:17,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 16 [2022-10-16 17:07:17,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294302659] [2022-10-16 17:07:17,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:07:17,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:07:17,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:17,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:07:17,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:07:17,961 INFO L87 Difference]: Start difference. First operand 1676 states and 1879 transitions. Second operand has 16 states, 16 states have (on average 25.1875) internal successors, (403), 16 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:19,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:19,530 INFO L93 Difference]: Finished difference Result 4862 states and 5437 transitions. [2022-10-16 17:07:19,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-10-16 17:07:19,532 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 25.1875) internal successors, (403), 16 states have internal predecessors, (403), 0 states have call successors, (0), 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 212 [2022-10-16 17:07:19,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:19,536 INFO L225 Difference]: With dead ends: 4862 [2022-10-16 17:07:19,536 INFO L226 Difference]: Without dead ends: 3546 [2022-10-16 17:07:19,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 440 SyntacticMatches, 8 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 738 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=562, Invalid=2090, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 17:07:19,540 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 3663 mSDsluCounter, 2960 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3663 SdHoareTripleChecker+Valid, 3283 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:19,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3663 Valid, 3283 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:07:19,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3546 states. [2022-10-16 17:07:19,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3546 to 1971. [2022-10-16 17:07:19,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1965 states have (on average 1.12264631043257) internal successors, (2206), 1970 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:19,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 2206 transitions. [2022-10-16 17:07:19,781 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 2206 transitions. Word has length 212 [2022-10-16 17:07:19,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:19,781 INFO L495 AbstractCegarLoop]: Abstraction has 1971 states and 2206 transitions. [2022-10-16 17:07:19,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 25.1875) internal successors, (403), 16 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:19,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 2206 transitions. [2022-10-16 17:07:19,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-10-16 17:07:19,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:19,783 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:19,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-16 17:07:19,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 17:07:19,984 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:19,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:19,985 INFO L85 PathProgramCache]: Analyzing trace with hash -325126347, now seen corresponding path program 1 times [2022-10-16 17:07:19,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:19,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856753305] [2022-10-16 17:07:19,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:19,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 17:07:20,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:20,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856753305] [2022-10-16 17:07:20,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856753305] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:07:20,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230785505] [2022-10-16 17:07:20,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:20,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:20,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:07:20,327 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:07:20,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 17:07:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:20,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:07:20,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:07:20,687 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 23 proven. 126 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 17:07:20,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:07:21,038 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 23 proven. 126 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 17:07:21,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230785505] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:07:21,039 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:07:21,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-16 17:07:21,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809901706] [2022-10-16 17:07:21,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:07:21,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:07:21,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:21,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:07:21,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:07:21,042 INFO L87 Difference]: Start difference. First operand 1971 states and 2206 transitions. Second operand has 16 states, 15 states have (on average 34.13333333333333) internal successors, (512), 16 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:21,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:21,578 INFO L93 Difference]: Finished difference Result 2065 states and 2310 transitions. [2022-10-16 17:07:21,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:07:21,579 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 34.13333333333333) internal successors, (512), 16 states have internal predecessors, (512), 0 states have call successors, (0), 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 217 [2022-10-16 17:07:21,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:21,582 INFO L225 Difference]: With dead ends: 2065 [2022-10-16 17:07:21,582 INFO L226 Difference]: Without dead ends: 2063 [2022-10-16 17:07:21,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 426 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2022-10-16 17:07:21,583 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1497 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:21,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1337 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:07:21,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2022-10-16 17:07:21,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 1969. [2022-10-16 17:07:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1965 states have (on average 1.1185750636132314) internal successors, (2198), 1968 states have internal predecessors, (2198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2198 transitions. [2022-10-16 17:07:21,957 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2198 transitions. Word has length 217 [2022-10-16 17:07:21,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:21,957 INFO L495 AbstractCegarLoop]: Abstraction has 1969 states and 2198 transitions. [2022-10-16 17:07:21,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 34.13333333333333) internal successors, (512), 16 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2198 transitions. [2022-10-16 17:07:21,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-10-16 17:07:21,960 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:21,960 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:21,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 17:07:22,174 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,SelfDestructingSolverStorable37 [2022-10-16 17:07:22,175 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:22,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:22,176 INFO L85 PathProgramCache]: Analyzing trace with hash -2045856826, now seen corresponding path program 1 times [2022-10-16 17:07:22,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:22,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247902448] [2022-10-16 17:07:22,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:22,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 17:07:22,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:22,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247902448] [2022-10-16 17:07:22,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247902448] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:07:22,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822415873] [2022-10-16 17:07:22,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:22,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:22,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:07:22,570 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:07:22,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 17:07:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:22,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 17:07:22,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:07:22,977 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 17:07:22,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:07:23,328 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 17:07:23,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822415873] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:07:23,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:07:23,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-10-16 17:07:23,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519417797] [2022-10-16 17:07:23,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:07:23,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:07:23,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:23,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:07:23,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:07:23,331 INFO L87 Difference]: Start difference. First operand 1969 states and 2198 transitions. Second operand has 18 states, 17 states have (on average 31.529411764705884) internal successors, (536), 18 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:24,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:24,773 INFO L93 Difference]: Finished difference Result 7209 states and 8072 transitions. [2022-10-16 17:07:24,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 17:07:24,774 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 31.529411764705884) internal successors, (536), 18 states have internal predecessors, (536), 0 states have call successors, (0), 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 229 [2022-10-16 17:07:24,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:24,781 INFO L225 Difference]: With dead ends: 7209 [2022-10-16 17:07:24,781 INFO L226 Difference]: Without dead ends: 7207 [2022-10-16 17:07:24,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=440, Invalid=966, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 17:07:24,784 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 5329 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5329 SdHoareTripleChecker+Valid, 2560 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:24,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5329 Valid, 2560 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:07:24,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7207 states. [2022-10-16 17:07:25,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7207 to 3814. [2022-10-16 17:07:25,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3814 states, 3810 states have (on average 1.116010498687664) internal successors, (4252), 3813 states have internal predecessors, (4252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:25,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 4252 transitions. [2022-10-16 17:07:25,324 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 4252 transitions. Word has length 229 [2022-10-16 17:07:25,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:25,324 INFO L495 AbstractCegarLoop]: Abstraction has 3814 states and 4252 transitions. [2022-10-16 17:07:25,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 31.529411764705884) internal successors, (536), 18 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:25,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 4252 transitions. [2022-10-16 17:07:25,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-10-16 17:07:25,328 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:25,328 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:25,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 17:07:25,528 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,SelfDestructingSolverStorable38 [2022-10-16 17:07:25,529 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:25,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:25,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2008269607, now seen corresponding path program 1 times [2022-10-16 17:07:25,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:25,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942547818] [2022-10-16 17:07:25,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:25,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:25,620 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-10-16 17:07:25,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:25,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942547818] [2022-10-16 17:07:25,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942547818] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:25,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:07:25,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:07:25,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487103339] [2022-10-16 17:07:25,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:25,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:07:25,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:25,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:07:25,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:07:25,624 INFO L87 Difference]: Start difference. First operand 3814 states and 4252 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:25,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:25,990 INFO L93 Difference]: Finished difference Result 5176 states and 5751 transitions. [2022-10-16 17:07:25,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:07:25,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 300 [2022-10-16 17:07:25,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:25,993 INFO L225 Difference]: With dead ends: 5176 [2022-10-16 17:07:25,994 INFO L226 Difference]: Without dead ends: 1819 [2022-10-16 17:07:25,996 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 17:07:25,997 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:25,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 315 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:07:25,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2022-10-16 17:07:26,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1731. [2022-10-16 17:07:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1727 states have (on average 1.102489866821077) internal successors, (1904), 1730 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:26,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 1904 transitions. [2022-10-16 17:07:26,224 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 1904 transitions. Word has length 300 [2022-10-16 17:07:26,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:26,224 INFO L495 AbstractCegarLoop]: Abstraction has 1731 states and 1904 transitions. [2022-10-16 17:07:26,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:26,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 1904 transitions. [2022-10-16 17:07:26,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-10-16 17:07:26,226 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:26,227 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:26,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-10-16 17:07:26,227 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:26,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:26,228 INFO L85 PathProgramCache]: Analyzing trace with hash -704521544, now seen corresponding path program 2 times [2022-10-16 17:07:26,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:26,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739419794] [2022-10-16 17:07:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:26,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-10-16 17:07:26,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:26,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739419794] [2022-10-16 17:07:26,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739419794] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:07:26,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:07:26,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:07:26,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185730063] [2022-10-16 17:07:26,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:07:26,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:07:26,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:26,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:07:26,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:07:26,322 INFO L87 Difference]: Start difference. First operand 1731 states and 1904 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:26,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:26,561 INFO L93 Difference]: Finished difference Result 2514 states and 2769 transitions. [2022-10-16 17:07:26,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:07:26,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 302 [2022-10-16 17:07:26,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:26,563 INFO L225 Difference]: With dead ends: 2514 [2022-10-16 17:07:26,563 INFO L226 Difference]: Without dead ends: 1221 [2022-10-16 17:07:26,564 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 17:07:26,565 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 3 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:26,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 299 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:07:26,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2022-10-16 17:07:26,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1203. [2022-10-16 17:07:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1199 states have (on average 1.0934111759799834) internal successors, (1311), 1202 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1311 transitions. [2022-10-16 17:07:26,744 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1311 transitions. Word has length 302 [2022-10-16 17:07:26,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:26,744 INFO L495 AbstractCegarLoop]: Abstraction has 1203 states and 1311 transitions. [2022-10-16 17:07:26,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:26,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1311 transitions. [2022-10-16 17:07:26,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-10-16 17:07:26,747 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:26,747 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:26,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-10-16 17:07:26,747 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:26,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:26,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1445054205, now seen corresponding path program 1 times [2022-10-16 17:07:26,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:26,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767467370] [2022-10-16 17:07:26,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:26,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:27,266 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 17:07:27,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:27,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767467370] [2022-10-16 17:07:27,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767467370] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:07:27,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960491408] [2022-10-16 17:07:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:27,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:27,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:07:27,271 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:07:27,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 17:07:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:27,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 17:07:27,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:07:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 15 proven. 350 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 17:07:27,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:07:28,286 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 15 proven. 350 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 17:07:28,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960491408] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:07:28,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:07:28,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-10-16 17:07:28,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308058127] [2022-10-16 17:07:28,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:07:28,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 17:07:28,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:28,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 17:07:28,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:07:28,292 INFO L87 Difference]: Start difference. First operand 1203 states and 1311 transitions. Second operand has 20 states, 19 states have (on average 36.0) internal successors, (684), 20 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:28,745 INFO L93 Difference]: Finished difference Result 1262 states and 1374 transitions. [2022-10-16 17:07:28,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 17:07:28,745 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 36.0) internal successors, (684), 20 states have internal predecessors, (684), 0 states have call successors, (0), 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 309 [2022-10-16 17:07:28,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:28,747 INFO L225 Difference]: With dead ends: 1262 [2022-10-16 17:07:28,747 INFO L226 Difference]: Without dead ends: 1151 [2022-10-16 17:07:28,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 608 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2022-10-16 17:07:28,748 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 2107 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:28,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2107 Valid, 2100 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:07:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2022-10-16 17:07:28,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1092. [2022-10-16 17:07:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1089 states have (on average 1.0899908172635446) internal successors, (1187), 1091 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:28,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1187 transitions. [2022-10-16 17:07:28,906 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1187 transitions. Word has length 309 [2022-10-16 17:07:28,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:28,907 INFO L495 AbstractCegarLoop]: Abstraction has 1092 states and 1187 transitions. [2022-10-16 17:07:28,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 36.0) internal successors, (684), 20 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:28,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1187 transitions. [2022-10-16 17:07:28,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2022-10-16 17:07:28,911 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:28,912 INFO L195 NwaCegarLoop]: trace histogram [14, 9, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:28,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 17:07:29,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:29,128 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:29,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:29,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1857321009, now seen corresponding path program 1 times [2022-10-16 17:07:29,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:29,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196452747] [2022-10-16 17:07:29,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:29,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:29,957 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 0 proven. 823 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 17:07:29,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:29,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196452747] [2022-10-16 17:07:29,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196452747] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:07:29,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395318251] [2022-10-16 17:07:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:29,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:29,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:07:29,962 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:07:29,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 17:07:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:30,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 17:07:30,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:07:30,634 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 0 proven. 823 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 17:07:30,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:07:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 0 proven. 823 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 17:07:31,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395318251] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:07:31,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:07:31,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2022-10-16 17:07:31,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426083571] [2022-10-16 17:07:31,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:07:31,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 17:07:31,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:31,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 17:07:31,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2022-10-16 17:07:31,318 INFO L87 Difference]: Start difference. First operand 1092 states and 1187 transitions. Second operand has 28 states, 27 states have (on average 33.333333333333336) internal successors, (900), 28 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:33,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:33,292 INFO L93 Difference]: Finished difference Result 2741 states and 2968 transitions. [2022-10-16 17:07:33,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-16 17:07:33,292 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 33.333333333333336) internal successors, (900), 28 states have internal predecessors, (900), 0 states have call successors, (0), 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 420 [2022-10-16 17:07:33,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:33,295 INFO L225 Difference]: With dead ends: 2741 [2022-10-16 17:07:33,295 INFO L226 Difference]: Without dead ends: 2055 [2022-10-16 17:07:33,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 827 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1316 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1405, Invalid=3565, Unknown=0, NotChecked=0, Total=4970 [2022-10-16 17:07:33,298 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 8261 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8261 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:33,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8261 Valid, 3390 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:07:33,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2022-10-16 17:07:33,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1704. [2022-10-16 17:07:33,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1701 states have (on average 1.0823045267489713) internal successors, (1841), 1703 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:33,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 1841 transitions. [2022-10-16 17:07:33,561 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 1841 transitions. Word has length 420 [2022-10-16 17:07:33,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:33,562 INFO L495 AbstractCegarLoop]: Abstraction has 1704 states and 1841 transitions. [2022-10-16 17:07:33,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 33.333333333333336) internal successors, (900), 28 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:33,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 1841 transitions. [2022-10-16 17:07:33,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2022-10-16 17:07:33,568 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:33,568 INFO L195 NwaCegarLoop]: trace histogram [23, 16, 12, 11, 11, 11, 11, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:33,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 17:07:33,774 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,SelfDestructingSolverStorable42 [2022-10-16 17:07:33,775 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:33,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:33,776 INFO L85 PathProgramCache]: Analyzing trace with hash -963699602, now seen corresponding path program 2 times [2022-10-16 17:07:33,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:33,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934749926] [2022-10-16 17:07:33,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:33,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:36,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2621 backedges. 0 proven. 2590 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 17:07:36,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:36,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934749926] [2022-10-16 17:07:36,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934749926] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:07:36,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996888657] [2022-10-16 17:07:36,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:07:36,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:36,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:07:36,115 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:07:36,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 17:07:36,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:07:36,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:07:36,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 17:07:36,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:07:37,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2621 backedges. 0 proven. 2560 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 17:07:37,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:07:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2621 backedges. 0 proven. 2560 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 17:07:38,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996888657] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:07:38,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:07:38,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 51 [2022-10-16 17:07:38,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290790843] [2022-10-16 17:07:38,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:07:38,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 17:07:38,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:38,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 17:07:38,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=2294, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 17:07:38,538 INFO L87 Difference]: Start difference. First operand 1704 states and 1841 transitions. Second operand has 52 states, 51 states have (on average 29.333333333333332) internal successors, (1496), 52 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:43,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:07:43,203 INFO L93 Difference]: Finished difference Result 4117 states and 4460 transitions. [2022-10-16 17:07:43,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-10-16 17:07:43,204 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 29.333333333333332) internal successors, (1496), 52 states have internal predecessors, (1496), 0 states have call successors, (0), 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 677 [2022-10-16 17:07:43,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:07:43,208 INFO L225 Difference]: With dead ends: 4117 [2022-10-16 17:07:43,208 INFO L226 Difference]: Without dead ends: 3312 [2022-10-16 17:07:43,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1456 GetRequests, 1332 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4391 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=4347, Invalid=11403, Unknown=0, NotChecked=0, Total=15750 [2022-10-16 17:07:43,214 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 20964 mSDsluCounter, 5171 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 1183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20964 SdHoareTripleChecker+Valid, 5372 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1183 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:07:43,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20964 Valid, 5372 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1183 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 17:07:43,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-10-16 17:07:43,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 2516. [2022-10-16 17:07:43,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2513 states have (on average 1.077198567449264) internal successors, (2707), 2515 states have internal predecessors, (2707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:43,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 2707 transitions. [2022-10-16 17:07:43,626 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 2707 transitions. Word has length 677 [2022-10-16 17:07:43,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:07:43,627 INFO L495 AbstractCegarLoop]: Abstraction has 2516 states and 2707 transitions. [2022-10-16 17:07:43,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 29.333333333333332) internal successors, (1496), 52 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:07:43,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 2707 transitions. [2022-10-16 17:07:43,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1317 [2022-10-16 17:07:43,643 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:07:43,644 INFO L195 NwaCegarLoop]: trace histogram [46, 33, 23, 23, 23, 22, 22, 21, 21, 21, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:07:43,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-10-16 17:07:43,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:43,845 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:07:43,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:07:43,847 INFO L85 PathProgramCache]: Analyzing trace with hash 729578721, now seen corresponding path program 2 times [2022-10-16 17:07:43,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:07:43,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642276724] [2022-10-16 17:07:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:07:43,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:07:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:07:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 11041 backedges. 0 proven. 10975 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 17:07:51,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:07:51,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642276724] [2022-10-16 17:07:51,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642276724] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:07:51,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950817186] [2022-10-16 17:07:51,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:07:51,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:07:51,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:07:51,683 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:07:51,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 17:07:52,085 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:07:52,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:07:52,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 2953 conjuncts, 55 conjunts are in the unsatisfiable core [2022-10-16 17:07:52,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:07:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 11041 backedges. 0 proven. 10975 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 17:07:53,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:07:56,708 INFO L134 CoverageAnalysis]: Checked inductivity of 11041 backedges. 0 proven. 10975 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-16 17:07:56,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950817186] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:07:56,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:07:56,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 91 [2022-10-16 17:07:56,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591050462] [2022-10-16 17:07:56,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:07:56,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-10-16 17:07:56,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:07:56,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-10-16 17:07:56,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1069, Invalid=7303, Unknown=0, NotChecked=0, Total=8372 [2022-10-16 17:07:56,719 INFO L87 Difference]: Start difference. First operand 2516 states and 2707 transitions. Second operand has 92 states, 91 states have (on average 29.054945054945055) internal successors, (2644), 92 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:14,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:08:14,214 INFO L93 Difference]: Finished difference Result 8117 states and 8784 transitions. [2022-10-16 17:08:14,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2022-10-16 17:08:14,215 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 29.054945054945055) internal successors, (2644), 92 states have internal predecessors, (2644), 0 states have call successors, (0), 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 1316 [2022-10-16 17:08:14,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:08:14,222 INFO L225 Difference]: With dead ends: 8117 [2022-10-16 17:08:14,222 INFO L226 Difference]: Without dead ends: 5847 [2022-10-16 17:08:14,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2841 GetRequests, 2595 SyntacticMatches, 1 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19116 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=17421, Invalid=43341, Unknown=0, NotChecked=0, Total=60762 [2022-10-16 17:08:14,236 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 44298 mSDsluCounter, 9574 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 2764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44298 SdHoareTripleChecker+Valid, 9774 SdHoareTripleChecker+Invalid, 3925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2764 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:08:14,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44298 Valid, 9774 Invalid, 3925 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2764 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 17:08:14,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5847 states. [2022-10-16 17:08:14,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5847 to 4552. [2022-10-16 17:08:14,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4552 states, 4549 states have (on average 1.0729830732029018) internal successors, (4881), 4551 states have internal predecessors, (4881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:14,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4552 states to 4552 states and 4881 transitions. [2022-10-16 17:08:14,987 INFO L78 Accepts]: Start accepts. Automaton has 4552 states and 4881 transitions. Word has length 1316 [2022-10-16 17:08:14,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:08:14,988 INFO L495 AbstractCegarLoop]: Abstraction has 4552 states and 4881 transitions. [2022-10-16 17:08:14,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 29.054945054945055) internal successors, (2644), 92 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:08:14,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4552 states and 4881 transitions. [2022-10-16 17:08:15,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2470 [2022-10-16 17:08:15,033 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:08:15,034 INFO L195 NwaCegarLoop]: trace histogram [87, 64, 44, 43, 43, 43, 43, 42, 42, 42, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:08:15,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-10-16 17:08:15,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-10-16 17:08:15,235 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:08:15,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:08:15,237 INFO L85 PathProgramCache]: Analyzing trace with hash 279527182, now seen corresponding path program 3 times [2022-10-16 17:08:15,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:08:15,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695133603] [2022-10-16 17:08:15,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:08:15,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:08:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:08:47,184 INFO L134 CoverageAnalysis]: Checked inductivity of 41181 backedges. 0 proven. 41086 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-10-16 17:08:47,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:08:47,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695133603] [2022-10-16 17:08:47,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695133603] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:08:47,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333530351] [2022-10-16 17:08:47,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:08:47,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:08:47,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:08:47,192 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:08:47,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 17:08:48,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2022-10-16 17:08:48,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:08:48,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 5456 conjuncts, 89 conjunts are in the unsatisfiable core [2022-10-16 17:08:48,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:08:53,604 INFO L134 CoverageAnalysis]: Checked inductivity of 41181 backedges. 0 proven. 40486 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2022-10-16 17:08:53,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:09:03,117 INFO L134 CoverageAnalysis]: Checked inductivity of 41181 backedges. 0 proven. 40486 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2022-10-16 17:09:03,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333530351] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:09:03,117 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:09:03,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 69, 69] total 197 [2022-10-16 17:09:03,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818090777] [2022-10-16 17:09:03,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:09:03,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 198 states [2022-10-16 17:09:03,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:09:03,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 198 interpolants. [2022-10-16 17:09:03,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3756, Invalid=35250, Unknown=0, NotChecked=0, Total=39006 [2022-10-16 17:09:03,138 INFO L87 Difference]: Start difference. First operand 4552 states and 4881 transitions. Second operand has 198 states, 197 states have (on average 33.70558375634518) internal successors, (6640), 198 states have internal predecessors, (6640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)