/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/loops-crafted-1/Mono4_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:45:34,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:45:34,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:45:34,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 21:45:34,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:45:34,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:45:34,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:45:34,878 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:45:34,940 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:45:34,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:45:34,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:45:34,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:45:34,943 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:45:34,943 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:45:34,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:45:34,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:45:34,947 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:45:34,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:45:34,948 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:45:34,948 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:45:34,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:45:34,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:45:34,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:45:34,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:45:34,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:45:34,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:45:34,950 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:45:34,950 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:45:34,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:45:34,951 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:45:34,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:45:34,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:45:34,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:45:34,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:45:34,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:45:34,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:45:34,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:45:34,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:45:34,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:45:34,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:45:34,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:45:34,954 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:45:35,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:45:35,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:45:35,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:45:35,458 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:45:35,458 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:45:35,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/Mono4_1.c [2022-10-15 21:45:35,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48f03fc43/c076b551974e4bb090bdb4c356a52203/FLAG904635925 [2022-10-15 21:45:36,185 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:45:36,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/Mono4_1.c [2022-10-15 21:45:36,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48f03fc43/c076b551974e4bb090bdb4c356a52203/FLAG904635925 [2022-10-15 21:45:36,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48f03fc43/c076b551974e4bb090bdb4c356a52203 [2022-10-15 21:45:36,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:45:36,540 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:45:36,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:45:36,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:45:36,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:45:36,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c0bb1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36, skipping insertion in model container [2022-10-15 21:45:36,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:45:36,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:45:36,832 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/loops-crafted-1/Mono4_1.c[311,324] [2022-10-15 21:45:36,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:45:36,857 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:45:36,876 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/loops-crafted-1/Mono4_1.c[311,324] [2022-10-15 21:45:36,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:45:36,899 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:45:36,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36 WrapperNode [2022-10-15 21:45:36,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:45:36,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:45:36,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:45:36,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:45:36,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,943 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-10-15 21:45:36,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:45:36,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:45:36,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:45:36,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:45:36,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,968 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:45:36,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:45:36,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:45:36,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:45:36,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (1/1) ... [2022-10-15 21:45:36,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:45:36,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:37,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:45:37,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:45:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:45:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:45:37,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:45:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:45:37,176 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:45:37,178 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:45:37,329 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:45:37,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:45:37,337 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 21:45:37,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:45:37 BoogieIcfgContainer [2022-10-15 21:45:37,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:45:37,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:45:37,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:45:37,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:45:37,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:45:36" (1/3) ... [2022-10-15 21:45:37,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a60fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:45:37, skipping insertion in model container [2022-10-15 21:45:37,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:45:36" (2/3) ... [2022-10-15 21:45:37,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a60fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:45:37, skipping insertion in model container [2022-10-15 21:45:37,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:45:37" (3/3) ... [2022-10-15 21:45:37,351 INFO L112 eAbstractionObserver]: Analyzing ICFG Mono4_1.c [2022-10-15 21:45:37,376 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:45:37,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-15 21:45:37,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:45:37,515 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;@2aab1990, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:45:37,515 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-15 21:45:37,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.625) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:37,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 21:45:37,545 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:37,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 21:45:37,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:37,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:37,561 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2022-10-15 21:45:37,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:37,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290101174] [2022-10-15 21:45:37,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:37,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:37,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:45:37,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:37,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290101174] [2022-10-15 21:45:37,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290101174] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:45:37,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:45:37,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:45:37,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686448479] [2022-10-15 21:45:37,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:45:37,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:45:37,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:37,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:45:37,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:45:37,943 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.625) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:38,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:38,015 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2022-10-15 21:45:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:45:38,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-15 21:45:38,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:38,033 INFO L225 Difference]: With dead ends: 48 [2022-10-15 21:45:38,033 INFO L226 Difference]: Without dead ends: 20 [2022-10-15 21:45:38,038 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 [2022-10-15 21:45:38,044 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:38,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 30 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:45:38,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-10-15 21:45:38,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-10-15 21:45:38,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:38,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-10-15 21:45:38,092 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 5 [2022-10-15 21:45:38,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:38,093 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-10-15 21:45:38,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-10-15 21:45:38,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 21:45:38,094 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:38,095 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:45:38,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:45:38,096 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:38,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:38,097 INFO L85 PathProgramCache]: Analyzing trace with hash 582877668, now seen corresponding path program 1 times [2022-10-15 21:45:38,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:38,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241196497] [2022-10-15 21:45:38,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:38,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:45:38,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:38,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241196497] [2022-10-15 21:45:38,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241196497] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:45:38,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:45:38,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:45:38,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586240569] [2022-10-15 21:45:38,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:45:38,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:45:38,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:38,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:45:38,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:45:38,172 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:38,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:38,209 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-10-15 21:45:38,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:45:38,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 21:45:38,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:38,211 INFO L225 Difference]: With dead ends: 20 [2022-10-15 21:45:38,211 INFO L226 Difference]: Without dead ends: 18 [2022-10-15 21:45:38,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:45:38,213 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:38,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 11 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:45:38,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-15 21:45:38,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-10-15 21:45:38,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:38,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-10-15 21:45:38,221 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2022-10-15 21:45:38,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:38,222 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-10-15 21:45:38,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:38,222 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-10-15 21:45:38,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 21:45:38,223 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:38,223 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:45:38,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:45:38,224 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:38,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:38,225 INFO L85 PathProgramCache]: Analyzing trace with hash 889338578, now seen corresponding path program 1 times [2022-10-15 21:45:38,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:38,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518674062] [2022-10-15 21:45:38,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:38,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:45:38,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:38,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518674062] [2022-10-15 21:45:38,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518674062] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:45:38,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983295484] [2022-10-15 21:45:38,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:38,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:38,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:38,319 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:45:38,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:45:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:38,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:45:38,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:45:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:45:38,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:45:38,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983295484] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:45:38,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:45:38,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 21:45:38,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082435144] [2022-10-15 21:45:38,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:45:38,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:45:38,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:38,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:45:38,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:45:38,413 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:38,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:38,441 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-10-15 21:45:38,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:45:38,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 21:45:38,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:38,443 INFO L225 Difference]: With dead ends: 31 [2022-10-15 21:45:38,443 INFO L226 Difference]: Without dead ends: 19 [2022-10-15 21:45:38,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:45:38,446 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:38,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:45:38,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-10-15 21:45:38,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-10-15 21:45:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:38,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-10-15 21:45:38,453 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 10 [2022-10-15 21:45:38,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:38,454 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-10-15 21:45:38,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:38,454 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-10-15 21:45:38,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 21:45:38,455 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:38,455 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 21:45:38,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:45:38,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:38,670 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:38,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:38,672 INFO L85 PathProgramCache]: Analyzing trace with hash 889332620, now seen corresponding path program 1 times [2022-10-15 21:45:38,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:38,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781808922] [2022-10-15 21:45:38,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:38,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:38,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:45:38,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:38,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781808922] [2022-10-15 21:45:38,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781808922] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:45:38,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326392486] [2022-10-15 21:45:38,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:38,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:38,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:38,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:45:38,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:45:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:38,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:45:38,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:45:38,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:45:38,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:45:38,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326392486] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:45:38,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:45:38,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 21:45:38,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490207492] [2022-10-15 21:45:38,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:45:38,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:45:38,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:38,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:45:38,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:45:38,966 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:38,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:38,995 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-10-15 21:45:38,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:45:38,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 21:45:38,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:38,997 INFO L225 Difference]: With dead ends: 19 [2022-10-15 21:45:38,997 INFO L226 Difference]: Without dead ends: 18 [2022-10-15 21:45:38,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:45:38,999 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:39,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 7 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:45:39,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-15 21:45:39,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2022-10-15 21:45:39,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:39,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-10-15 21:45:39,006 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2022-10-15 21:45:39,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:39,007 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-10-15 21:45:39,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-10-15 21:45:39,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 21:45:39,008 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:39,008 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:45:39,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:45:39,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-15 21:45:39,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:39,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:39,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1799692198, now seen corresponding path program 1 times [2022-10-15 21:45:39,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:39,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995864519] [2022-10-15 21:45:39,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:39,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:45:39,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:39,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995864519] [2022-10-15 21:45:39,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995864519] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:45:39,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045006516] [2022-10-15 21:45:39,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:39,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:39,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:39,347 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:45:39,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:45:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:39,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:45:39,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:45:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:45:39,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:45:39,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045006516] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:45:39,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:45:39,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 21:45:39,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520082373] [2022-10-15 21:45:39,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:45:39,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:45:39,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:39,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:45:39,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:45:39,434 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:39,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:39,446 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-10-15 21:45:39,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:45:39,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-15 21:45:39,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:39,448 INFO L225 Difference]: With dead ends: 21 [2022-10-15 21:45:39,448 INFO L226 Difference]: Without dead ends: 20 [2022-10-15 21:45:39,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:45:39,451 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:39,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:45:39,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-10-15 21:45:39,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2022-10-15 21:45:39,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:39,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-10-15 21:45:39,458 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2022-10-15 21:45:39,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:39,458 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-10-15 21:45:39,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:39,459 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-10-15 21:45:39,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 21:45:39,459 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:39,460 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:45:39,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:45:39,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:39,674 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:39,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:39,676 INFO L85 PathProgramCache]: Analyzing trace with hash -44116652, now seen corresponding path program 1 times [2022-10-15 21:45:39,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:39,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763030486] [2022-10-15 21:45:39,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:39,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:39,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:45:39,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:39,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763030486] [2022-10-15 21:45:39,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763030486] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:45:39,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001373307] [2022-10-15 21:45:39,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:39,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:39,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:39,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:45:39,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:45:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:39,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:45:39,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:45:39,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:45:39,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:45:39,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001373307] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:45:39,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:45:39,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 21:45:39,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966970101] [2022-10-15 21:45:39,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:45:39,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:45:39,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:39,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:45:39,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:45:39,863 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:39,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:39,871 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-10-15 21:45:39,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:45:39,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-15 21:45:39,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:39,873 INFO L225 Difference]: With dead ends: 19 [2022-10-15 21:45:39,873 INFO L226 Difference]: Without dead ends: 18 [2022-10-15 21:45:39,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:45:39,875 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:39,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:45:39,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-15 21:45:39,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-10-15 21:45:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:39,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-10-15 21:45:39,881 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 12 [2022-10-15 21:45:39,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:39,882 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-10-15 21:45:39,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:39,882 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-10-15 21:45:39,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 21:45:39,883 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:39,883 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:45:39,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:45:40,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:40,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:40,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:40,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1219582119, now seen corresponding path program 1 times [2022-10-15 21:45:40,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:40,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858014245] [2022-10-15 21:45:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:40,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:40,162 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:45:40,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:40,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858014245] [2022-10-15 21:45:40,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858014245] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:45:40,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057214896] [2022-10-15 21:45:40,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:40,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:40,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:40,165 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:45:40,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:45:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:40,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:45:40,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:45:40,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:45:40,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:45:40,275 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:45:40,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057214896] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:45:40,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:45:40,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-15 21:45:40,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799132306] [2022-10-15 21:45:40,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:45:40,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:45:40,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:40,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:45:40,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:45:40,279 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:40,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:40,335 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-10-15 21:45:40,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:45:40,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-15 21:45:40,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:40,343 INFO L225 Difference]: With dead ends: 40 [2022-10-15 21:45:40,345 INFO L226 Difference]: Without dead ends: 30 [2022-10-15 21:45:40,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:45:40,350 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:40,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:45:40,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-10-15 21:45:40,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-10-15 21:45:40,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:40,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-10-15 21:45:40,365 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 17 [2022-10-15 21:45:40,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:40,366 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-10-15 21:45:40,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:40,367 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-10-15 21:45:40,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-15 21:45:40,368 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:40,371 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-15 21:45:40,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:45:40,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:40,586 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:40,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:40,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1191894134, now seen corresponding path program 2 times [2022-10-15 21:45:40,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:40,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548233716] [2022-10-15 21:45:40,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:40,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:40,684 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-15 21:45:40,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:40,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548233716] [2022-10-15 21:45:40,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548233716] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:45:40,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545076926] [2022-10-15 21:45:40,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:45:40,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:40,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:40,687 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:45:40,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:45:40,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:45:40,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:45:40,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 21:45:40,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:45:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:45:40,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:45:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:45:40,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545076926] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:45:40,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:45:40,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-10-15 21:45:40,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079543809] [2022-10-15 21:45:40,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:45:40,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 21:45:40,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:40,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 21:45:40,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:45:40,959 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:41,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:41,185 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2022-10-15 21:45:41,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 21:45:41,186 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-15 21:45:41,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:41,191 INFO L225 Difference]: With dead ends: 71 [2022-10-15 21:45:41,192 INFO L226 Difference]: Without dead ends: 61 [2022-10-15 21:45:41,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2022-10-15 21:45:41,194 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 43 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:41,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 21 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:45:41,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-15 21:45:41,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2022-10-15 21:45:41,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.0338983050847457) internal successors, (61), 59 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:41,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2022-10-15 21:45:41,224 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 29 [2022-10-15 21:45:41,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:41,225 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2022-10-15 21:45:41,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:41,225 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2022-10-15 21:45:41,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-15 21:45:41,230 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:41,230 INFO L195 NwaCegarLoop]: trace histogram [13, 10, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1] [2022-10-15 21:45:41,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:45:41,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:41,445 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:41,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:41,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1232260449, now seen corresponding path program 3 times [2022-10-15 21:45:41,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:41,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650190453] [2022-10-15 21:45:41,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:41,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:41,573 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-15 21:45:41,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:41,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650190453] [2022-10-15 21:45:41,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650190453] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:45:41,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415448955] [2022-10-15 21:45:41,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 21:45:41,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:41,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:41,576 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:45:41,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 21:45:41,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-15 21:45:41,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:45:41,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 21:45:41,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:45:41,748 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-15 21:45:41,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:45:41,854 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-15 21:45:41,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415448955] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:45:41,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:45:41,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-15 21:45:41,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744209384] [2022-10-15 21:45:41,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:45:41,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:45:41,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:41,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:45:41,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:45:41,858 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:41,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:41,890 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2022-10-15 21:45:41,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:45:41,891 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 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 59 [2022-10-15 21:45:41,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:41,896 INFO L225 Difference]: With dead ends: 85 [2022-10-15 21:45:41,896 INFO L226 Difference]: Without dead ends: 84 [2022-10-15 21:45:41,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:45:41,900 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:41,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 36 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:45:41,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-10-15 21:45:41,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-10-15 21:45:41,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.0240963855421688) internal successors, (85), 83 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:41,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2022-10-15 21:45:41,933 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 59 [2022-10-15 21:45:41,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:41,939 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2022-10-15 21:45:41,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:41,940 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2022-10-15 21:45:41,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-15 21:45:41,941 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:41,941 INFO L195 NwaCegarLoop]: trace histogram [17, 10, 10, 10, 7, 7, 7, 6, 6, 1, 1, 1] [2022-10-15 21:45:41,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 21:45:42,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:42,143 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:42,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:42,145 INFO L85 PathProgramCache]: Analyzing trace with hash 848038123, now seen corresponding path program 4 times [2022-10-15 21:45:42,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:42,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253322717] [2022-10-15 21:45:42,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:42,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:42,537 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 132 proven. 200 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-15 21:45:42,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:42,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253322717] [2022-10-15 21:45:42,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253322717] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:45:42,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409357519] [2022-10-15 21:45:42,539 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 21:45:42,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:42,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:42,540 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:45:42,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 21:45:42,613 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 21:45:42,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:45:42,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 21:45:42,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:45:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 132 proven. 200 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-15 21:45:42,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:45:42,984 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 132 proven. 200 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-15 21:45:42,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409357519] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:45:42,985 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:45:42,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-10-15 21:45:42,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152571870] [2022-10-15 21:45:42,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:45:42,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-15 21:45:42,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:42,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-15 21:45:42,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-15 21:45:42,989 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:43,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:43,152 INFO L93 Difference]: Finished difference Result 172 states and 185 transitions. [2022-10-15 21:45:43,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-15 21:45:43,153 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-10-15 21:45:43,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:43,154 INFO L225 Difference]: With dead ends: 172 [2022-10-15 21:45:43,154 INFO L226 Difference]: Without dead ends: 132 [2022-10-15 21:45:43,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-15 21:45:43,157 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 44 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:43,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 24 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:45:43,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-15 21:45:43,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-10-15 21:45:43,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.015267175572519) internal successors, (133), 131 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:43,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 133 transitions. [2022-10-15 21:45:43,171 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 133 transitions. Word has length 83 [2022-10-15 21:45:43,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:43,172 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 133 transitions. [2022-10-15 21:45:43,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 133 transitions. [2022-10-15 21:45:43,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-15 21:45:43,174 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:43,175 INFO L195 NwaCegarLoop]: trace histogram [29, 22, 22, 22, 7, 7, 7, 6, 6, 1, 1, 1] [2022-10-15 21:45:43,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 21:45:43,390 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,SelfDestructingSolverStorable9 [2022-10-15 21:45:43,391 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:43,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:43,392 INFO L85 PathProgramCache]: Analyzing trace with hash -26644561, now seen corresponding path program 5 times [2022-10-15 21:45:43,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:43,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225969129] [2022-10-15 21:45:43,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:43,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:44,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 276 proven. 968 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-15 21:45:44,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:44,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225969129] [2022-10-15 21:45:44,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225969129] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:45:44,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767964932] [2022-10-15 21:45:44,196 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-15 21:45:44,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:44,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:44,197 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:45:44,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 21:45:44,288 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2022-10-15 21:45:44,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:45:44,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-15 21:45:44,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:45:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 276 proven. 968 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-15 21:45:44,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:45:45,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 276 proven. 968 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-15 21:45:45,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767964932] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:45:45,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:45:45,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-10-15 21:45:45,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563378877] [2022-10-15 21:45:45,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:45:45,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-15 21:45:45,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:45,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-15 21:45:45,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 21:45:45,360 INFO L87 Difference]: Start difference. First operand 132 states and 133 transitions. Second operand has 49 states, 49 states have (on average 3.979591836734694) internal successors, (195), 49 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:45,653 INFO L93 Difference]: Finished difference Result 268 states and 293 transitions. [2022-10-15 21:45:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-15 21:45:45,654 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.979591836734694) internal successors, (195), 49 states have internal predecessors, (195), 0 states have call successors, (0), 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 131 [2022-10-15 21:45:45,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:45,657 INFO L225 Difference]: With dead ends: 268 [2022-10-15 21:45:45,657 INFO L226 Difference]: Without dead ends: 228 [2022-10-15 21:45:45,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 21:45:45,660 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 92 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:45,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 20 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:45:45,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-10-15 21:45:45,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-10-15 21:45:45,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.0088105726872247) internal successors, (229), 227 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:45,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 229 transitions. [2022-10-15 21:45:45,690 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 229 transitions. Word has length 131 [2022-10-15 21:45:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:45,692 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 229 transitions. [2022-10-15 21:45:45,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.979591836734694) internal successors, (195), 49 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 229 transitions. [2022-10-15 21:45:45,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-10-15 21:45:45,707 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:45,708 INFO L195 NwaCegarLoop]: trace histogram [53, 46, 46, 46, 7, 7, 7, 6, 6, 1, 1, 1] [2022-10-15 21:45:45,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 21:45:45,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:45,925 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:45,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:45,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1809184055, now seen corresponding path program 6 times [2022-10-15 21:45:45,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:45,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279735419] [2022-10-15 21:45:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:45,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4904 backedges. 564 proven. 4232 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-15 21:45:48,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:48,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279735419] [2022-10-15 21:45:48,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279735419] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:45:48,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592251062] [2022-10-15 21:45:48,554 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-15 21:45:48,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:48,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:48,556 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:45:48,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 21:45:48,635 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-10-15 21:45:48,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:45:48,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 21:45:48,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:45:49,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4904 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2022-10-15 21:45:49,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:45:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 4904 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2022-10-15 21:45:49,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592251062] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:45:49,565 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:45:49,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 8, 8] total 63 [2022-10-15 21:45:49,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772796010] [2022-10-15 21:45:49,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:45:49,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-10-15 21:45:49,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:49,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-10-15 21:45:49,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1295, Invalid=2611, Unknown=0, NotChecked=0, Total=3906 [2022-10-15 21:45:49,571 INFO L87 Difference]: Start difference. First operand 228 states and 229 transitions. Second operand has 63 states, 63 states have (on average 4.523809523809524) internal successors, (285), 63 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:51,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:51,216 INFO L93 Difference]: Finished difference Result 322 states and 332 transitions. [2022-10-15 21:45:51,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-15 21:45:51,217 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 4.523809523809524) internal successors, (285), 63 states have internal predecessors, (285), 0 states have call successors, (0), 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 227 [2022-10-15 21:45:51,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:51,219 INFO L225 Difference]: With dead ends: 322 [2022-10-15 21:45:51,220 INFO L226 Difference]: Without dead ends: 282 [2022-10-15 21:45:51,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1725 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=4256, Invalid=7734, Unknown=0, NotChecked=0, Total=11990 [2022-10-15 21:45:51,227 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 406 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:51,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 77 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 21:45:51,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-10-15 21:45:51,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 280. [2022-10-15 21:45:51,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 279 states have (on average 1.007168458781362) internal successors, (281), 279 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 281 transitions. [2022-10-15 21:45:51,242 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 281 transitions. Word has length 227 [2022-10-15 21:45:51,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:51,242 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 281 transitions. [2022-10-15 21:45:51,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 4.523809523809524) internal successors, (285), 63 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:51,243 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 281 transitions. [2022-10-15 21:45:51,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-10-15 21:45:51,247 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:51,247 INFO L195 NwaCegarLoop]: trace histogram [62, 47, 47, 47, 15, 15, 15, 14, 14, 1, 1, 1] [2022-10-15 21:45:51,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 21:45:51,461 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,SelfDestructingSolverStorable11 [2022-10-15 21:45:51,462 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:51,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:51,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1880735926, now seen corresponding path program 7 times [2022-10-15 21:45:51,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:51,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283318893] [2022-10-15 21:45:51,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:51,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:54,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6350 backedges. 1344 proven. 4418 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-15 21:45:54,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:45:54,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283318893] [2022-10-15 21:45:54,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283318893] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:45:54,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643105784] [2022-10-15 21:45:54,062 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-15 21:45:54,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:45:54,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:45:54,067 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:45:54,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 21:45:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:45:54,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-15 21:45:54,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:45:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 6350 backedges. 1344 proven. 4418 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-15 21:45:54,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:45:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 6350 backedges. 1344 proven. 4418 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-15 21:45:57,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643105784] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:45:57,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:45:57,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 99 [2022-10-15 21:45:57,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036009390] [2022-10-15 21:45:57,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:45:57,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-10-15 21:45:57,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:45:57,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-10-15 21:45:57,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2022-10-15 21:45:57,589 INFO L87 Difference]: Start difference. First operand 280 states and 281 transitions. Second operand has 99 states, 99 states have (on average 3.98989898989899) internal successors, (395), 99 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:58,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:45:58,237 INFO L93 Difference]: Finished difference Result 564 states and 614 transitions. [2022-10-15 21:45:58,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-10-15 21:45:58,238 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 3.98989898989899) internal successors, (395), 99 states have internal predecessors, (395), 0 states have call successors, (0), 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 279 [2022-10-15 21:45:58,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:45:58,240 INFO L225 Difference]: With dead ends: 564 [2022-10-15 21:45:58,241 INFO L226 Difference]: Without dead ends: 476 [2022-10-15 21:45:58,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2022-10-15 21:45:58,246 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 288 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:45:58,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 20 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 21:45:58,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-10-15 21:45:58,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2022-10-15 21:45:58,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 475 states have (on average 1.0042105263157894) internal successors, (477), 475 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:58,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 477 transitions. [2022-10-15 21:45:58,266 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 477 transitions. Word has length 279 [2022-10-15 21:45:58,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:45:58,267 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 477 transitions. [2022-10-15 21:45:58,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 3.98989898989899) internal successors, (395), 99 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:45:58,268 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 477 transitions. [2022-10-15 21:45:58,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-10-15 21:45:58,277 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:45:58,277 INFO L195 NwaCegarLoop]: trace histogram [111, 96, 96, 96, 15, 15, 15, 14, 14, 1, 1, 1] [2022-10-15 21:45:58,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-15 21:45:58,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-15 21:45:58,493 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 21:45:58,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:45:58,494 INFO L85 PathProgramCache]: Analyzing trace with hash 2046088789, now seen corresponding path program 8 times [2022-10-15 21:45:58,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:45:58,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933163769] [2022-10-15 21:45:58,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:45:58,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:45:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:46:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 21736 backedges. 2716 proven. 18432 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-15 21:46:06,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:46:06,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933163769] [2022-10-15 21:46:06,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933163769] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:46:06,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775859810] [2022-10-15 21:46:06,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:46:06,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:46:06,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:46:06,725 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:46:06,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-15 21:46:06,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:46:06,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:46:06,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 98 conjunts are in the unsatisfiable core [2022-10-15 21:46:06,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:46:07,382 INFO L134 CoverageAnalysis]: Checked inductivity of 21736 backedges. 2716 proven. 18432 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-15 21:46:07,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:46:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 21736 backedges. 2716 proven. 18432 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-10-15 21:46:20,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775859810] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:46:20,442 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:46:20,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99, 99] total 197 [2022-10-15 21:46:20,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984596419] [2022-10-15 21:46:20,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:46:20,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2022-10-15 21:46:20,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:46:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2022-10-15 21:46:20,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19306, Invalid=19306, Unknown=0, NotChecked=0, Total=38612 [2022-10-15 21:46:20,467 INFO L87 Difference]: Start difference. First operand 476 states and 477 transitions. Second operand has 197 states, 197 states have (on average 3.99492385786802) internal successors, (787), 197 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:46:22,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:46:22,494 INFO L93 Difference]: Finished difference Result 956 states and 1055 transitions. [2022-10-15 21:46:22,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-10-15 21:46:22,495 INFO L78 Accepts]: Start accepts. Automaton has has 197 states, 197 states have (on average 3.99492385786802) internal successors, (787), 197 states have internal predecessors, (787), 0 states have call successors, (0), 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 475 [2022-10-15 21:46:22,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:46:22,503 INFO L225 Difference]: With dead ends: 956 [2022-10-15 21:46:22,503 INFO L226 Difference]: Without dead ends: 868 [2022-10-15 21:46:22,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=19306, Invalid=19306, Unknown=0, NotChecked=0, Total=38612 [2022-10-15 21:46:22,510 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 388 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:46:22,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 32 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 21:46:22,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2022-10-15 21:46:22,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 868. [2022-10-15 21:46:22,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 1.0023068050749713) internal successors, (869), 867 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:46:22,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 869 transitions. [2022-10-15 21:46:22,548 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 869 transitions. Word has length 475 [2022-10-15 21:46:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:46:22,549 INFO L495 AbstractCegarLoop]: Abstraction has 868 states and 869 transitions. [2022-10-15 21:46:22,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 197 states, 197 states have (on average 3.99492385786802) internal successors, (787), 197 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:46:22,550 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 869 transitions. [2022-10-15 21:46:22,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 868 [2022-10-15 21:46:22,582 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:46:22,582 INFO L195 NwaCegarLoop]: trace histogram [209, 194, 194, 194, 15, 15, 15, 14, 14, 1, 1, 1] [2022-10-15 21:46:22,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-15 21:46:22,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 21:46:22,796 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)] === [2022-10-15 21:46:22,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:46:22,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1251652587, now seen corresponding path program 9 times [2022-10-15 21:46:22,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:46:22,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103336693] [2022-10-15 21:46:22,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:46:22,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:46:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat