/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/array-examples/sorting_bubblesort_2_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:10:16,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:10:16,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:10:16,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 20:10:16,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:10:16,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:10:16,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:10:16,285 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 20:10:16,340 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:10:16,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:10:16,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:10:16,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:10:16,344 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:10:16,344 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:10:16,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:10:16,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:10:16,347 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:10:16,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:10:16,349 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:10:16,349 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:10:16,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:10:16,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:10:16,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:10:16,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:10:16,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:10:16,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:10:16,351 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:10:16,351 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:10:16,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:10:16,352 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:10:16,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:10:16,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:10:16,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:10:16,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:10:16,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:10:16,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:10:16,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:10:16,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:10:16,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:10:16,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:10:16,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:10:16,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:10:16,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:10:16,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:10:16,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:10:16,801 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:10:16,802 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:10:16,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/sorting_bubblesort_2_ground.i [2022-10-15 20:10:16,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8bf1029a/7a61820a19494e53bd8578e9af651df3/FLAGe2fb74065 [2022-10-15 20:10:17,625 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:10:17,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_2_ground.i [2022-10-15 20:10:17,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8bf1029a/7a61820a19494e53bd8578e9af651df3/FLAGe2fb74065 [2022-10-15 20:10:17,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8bf1029a/7a61820a19494e53bd8578e9af651df3 [2022-10-15 20:10:17,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:10:17,972 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:10:17,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:10:17,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:10:17,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:10:17,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:10:17" (1/1) ... [2022-10-15 20:10:17,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5916d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:17, skipping insertion in model container [2022-10-15 20:10:17,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:10:17" (1/1) ... [2022-10-15 20:10:17,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:10:18,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:10:18,202 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/array-examples/sorting_bubblesort_2_ground.i[820,833] [2022-10-15 20:10:18,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:10:18,239 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:10:18,253 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/array-examples/sorting_bubblesort_2_ground.i[820,833] [2022-10-15 20:10:18,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:10:18,279 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:10:18,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18 WrapperNode [2022-10-15 20:10:18,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:10:18,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:10:18,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:10:18,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:10:18,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (1/1) ... [2022-10-15 20:10:18,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (1/1) ... [2022-10-15 20:10:18,324 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 98 [2022-10-15 20:10:18,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:10:18,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:10:18,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:10:18,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:10:18,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (1/1) ... [2022-10-15 20:10:18,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (1/1) ... [2022-10-15 20:10:18,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (1/1) ... [2022-10-15 20:10:18,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (1/1) ... [2022-10-15 20:10:18,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (1/1) ... [2022-10-15 20:10:18,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (1/1) ... [2022-10-15 20:10:18,356 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (1/1) ... [2022-10-15 20:10:18,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (1/1) ... [2022-10-15 20:10:18,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:10:18,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:10:18,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:10:18,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:10:18,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (1/1) ... [2022-10-15 20:10:18,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:10:18,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:18,403 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 20:10:18,407 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 20:10:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:10:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:10:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:10:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:10:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:10:18,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:10:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:10:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:10:18,535 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:10:18,538 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:10:18,845 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:10:18,864 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:10:18,864 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-15 20:10:18,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:18 BoogieIcfgContainer [2022-10-15 20:10:18,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:10:18,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:10:18,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:10:18,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:10:18,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:10:17" (1/3) ... [2022-10-15 20:10:18,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8398cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:10:18, skipping insertion in model container [2022-10-15 20:10:18,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:18" (2/3) ... [2022-10-15 20:10:18,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8398cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:10:18, skipping insertion in model container [2022-10-15 20:10:18,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:18" (3/3) ... [2022-10-15 20:10:18,894 INFO L112 eAbstractionObserver]: Analyzing ICFG sorting_bubblesort_2_ground.i [2022-10-15 20:10:18,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:10:18,925 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-15 20:10:19,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:10:19,030 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;@12a80dcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:10:19,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-15 20:10:19,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 35 states have (on average 1.8) internal successors, (63), 51 states have internal predecessors, (63), 0 states have call successors, (0), 0 states 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 20:10:19,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 20:10:19,057 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:19,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 20:10:19,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:19,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:19,068 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-15 20:10:19,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:19,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951669486] [2022-10-15 20:10:19,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:19,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:19,400 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 20:10:19,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:19,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951669486] [2022-10-15 20:10:19,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951669486] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:19,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:19,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:19,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803858438] [2022-10-15 20:10:19,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:19,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:19,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:19,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:19,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:19,451 INFO L87 Difference]: Start difference. First operand has 52 states, 35 states have (on average 1.8) internal successors, (63), 51 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 20:10:19,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:19,520 INFO L93 Difference]: Finished difference Result 102 states and 124 transitions. [2022-10-15 20:10:19,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:19,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 20:10:19,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:19,537 INFO L225 Difference]: With dead ends: 102 [2022-10-15 20:10:19,537 INFO L226 Difference]: Without dead ends: 51 [2022-10-15 20:10:19,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:19,546 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 3 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:19,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 155 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:19,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-15 20:10:19,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-10-15 20:10:19,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 35 states have (on average 1.6) internal successors, (56), 50 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:19,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-10-15 20:10:19,596 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 5 [2022-10-15 20:10:19,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:19,597 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-10-15 20:10:19,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 20:10:19,597 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-10-15 20:10:19,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:10:19,598 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:19,598 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-15 20:10:19,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:10:19,599 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:19,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:19,600 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-15 20:10:19,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:19,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589378279] [2022-10-15 20:10:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:19,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:10:19,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:19,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589378279] [2022-10-15 20:10:19,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589378279] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:19,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:19,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:19,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852655781] [2022-10-15 20:10:19,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:19,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:19,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:19,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:19,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:19,693 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:19,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:19,731 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2022-10-15 20:10:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:19,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 20:10:19,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:19,733 INFO L225 Difference]: With dead ends: 51 [2022-10-15 20:10:19,734 INFO L226 Difference]: Without dead ends: 50 [2022-10-15 20:10:19,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:19,737 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 5 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:19,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 135 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:19,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-15 20:10:19,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-10-15 20:10:19,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 49 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2022-10-15 20:10:19,747 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 9 [2022-10-15 20:10:19,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:19,748 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2022-10-15 20:10:19,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:19,748 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2022-10-15 20:10:19,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:10:19,749 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:19,749 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:10:19,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:10:19,750 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:19,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:19,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-15 20:10:19,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:19,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627805705] [2022-10-15 20:10:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:19,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:19,936 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 20:10:19,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:19,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627805705] [2022-10-15 20:10:19,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627805705] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:19,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771839425] [2022-10-15 20:10:19,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:19,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:19,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:19,940 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 20:10:19,992 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 20:10:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:20,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:10:20,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:20,163 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 20:10:20,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:20,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771839425] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:20,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:20,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:10:20,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145595959] [2022-10-15 20:10:20,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:20,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:10:20,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:20,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:10:20,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:10:20,167 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:10:20,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:20,214 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2022-10-15 20:10:20,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:10:20,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:10:20,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:20,216 INFO L225 Difference]: With dead ends: 50 [2022-10-15 20:10:20,216 INFO L226 Difference]: Without dead ends: 49 [2022-10-15 20:10:20,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:10:20,219 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 48 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:20,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 91 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:20,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-15 20:10:20,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2022-10-15 20:10:20,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.59375) internal successors, (51), 45 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:20,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-10-15 20:10:20,229 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 10 [2022-10-15 20:10:20,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:20,229 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-10-15 20:10:20,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:10:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-10-15 20:10:20,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 20:10:20,230 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:20,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:20,263 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 20:10:20,445 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 20:10:20,446 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:20,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:20,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1713503061, now seen corresponding path program 1 times [2022-10-15 20:10:20,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:20,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134653551] [2022-10-15 20:10:20,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:20,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:10:20,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:20,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134653551] [2022-10-15 20:10:20,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134653551] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:20,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167536317] [2022-10-15 20:10:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:20,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:20,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:20,585 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 20:10:20,617 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 20:10:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:20,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:10:20,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:10:20,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:20,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167536317] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:20,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:20,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:10:20,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081483056] [2022-10-15 20:10:20,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:20,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:10:20,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:20,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:10:20,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:20,683 INFO L87 Difference]: Start difference. First operand 46 states and 51 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 20:10:20,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:20,772 INFO L93 Difference]: Finished difference Result 94 states and 113 transitions. [2022-10-15 20:10:20,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:10:20,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-15 20:10:20,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:20,776 INFO L225 Difference]: With dead ends: 94 [2022-10-15 20:10:20,777 INFO L226 Difference]: Without dead ends: 56 [2022-10-15 20:10:20,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:20,781 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 13 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:20,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 65 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:10:20,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-15 20:10:20,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2022-10-15 20:10:20,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 41 states have (on average 1.5609756097560976) internal successors, (64), 54 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:20,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2022-10-15 20:10:20,799 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 11 [2022-10-15 20:10:20,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:20,799 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2022-10-15 20:10:20,799 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 20:10:20,801 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2022-10-15 20:10:20,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 20:10:20,801 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:20,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:20,832 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 20:10:21,010 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 20:10:21,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:21,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:21,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1579017860, now seen corresponding path program 1 times [2022-10-15 20:10:21,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:21,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454496422] [2022-10-15 20:10:21,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:21,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:21,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:10:21,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:21,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454496422] [2022-10-15 20:10:21,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454496422] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:21,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468864772] [2022-10-15 20:10:21,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:21,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:21,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:21,078 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 20:10:21,100 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 20:10:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:21,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:10:21,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:10:21,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:21,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468864772] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:21,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:21,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-15 20:10:21,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647462677] [2022-10-15 20:10:21,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:21,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:10:21,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:21,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:10:21,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:21,152 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:21,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:21,176 INFO L93 Difference]: Finished difference Result 94 states and 107 transitions. [2022-10-15 20:10:21,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:10:21,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-15 20:10:21,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:21,183 INFO L225 Difference]: With dead ends: 94 [2022-10-15 20:10:21,184 INFO L226 Difference]: Without dead ends: 75 [2022-10-15 20:10:21,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:21,187 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 19 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:21,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 114 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:21,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-10-15 20:10:21,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2022-10-15 20:10:21,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.5918367346938775) internal successors, (78), 62 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 20:10:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2022-10-15 20:10:21,210 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 12 [2022-10-15 20:10:21,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:21,211 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2022-10-15 20:10:21,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:21,212 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2022-10-15 20:10:21,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 20:10:21,213 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:21,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:21,254 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 20:10:21,428 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 20:10:21,429 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:21,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:21,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1578987267, now seen corresponding path program 1 times [2022-10-15 20:10:21,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:21,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655794567] [2022-10-15 20:10:21,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:21,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:10:21,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:21,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655794567] [2022-10-15 20:10:21,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655794567] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:21,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980209976] [2022-10-15 20:10:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:21,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:21,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:21,540 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 20:10:21,551 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 20:10:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:21,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:10:21,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:10:21,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:21,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980209976] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:21,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:21,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:10:21,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724584229] [2022-10-15 20:10:21,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:21,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:10:21,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:21,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:10:21,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:21,605 INFO L87 Difference]: Start difference. First operand 63 states and 78 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:21,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:21,630 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2022-10-15 20:10:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:10:21,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-15 20:10:21,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:21,631 INFO L225 Difference]: With dead ends: 64 [2022-10-15 20:10:21,632 INFO L226 Difference]: Without dead ends: 60 [2022-10-15 20:10:21,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:21,633 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 34 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:21,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 39 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:21,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-15 20:10:21,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2022-10-15 20:10:21,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 58 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 20:10:21,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 69 transitions. [2022-10-15 20:10:21,644 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 69 transitions. Word has length 12 [2022-10-15 20:10:21,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:21,645 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 69 transitions. [2022-10-15 20:10:21,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:21,645 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 69 transitions. [2022-10-15 20:10:21,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 20:10:21,646 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:21,646 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:21,674 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 20:10:21,849 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 20:10:21,850 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:21,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:21,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1446466052, now seen corresponding path program 1 times [2022-10-15 20:10:21,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:21,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782500483] [2022-10-15 20:10:21,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:21,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:21,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:10:21,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:21,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782500483] [2022-10-15 20:10:21,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782500483] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:21,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83701839] [2022-10-15 20:10:21,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:21,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:21,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:21,934 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 20:10:21,944 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 20:10:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:21,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:10:22,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:22,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:10:22,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:22,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83701839] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:22,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:22,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:10:22,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131581257] [2022-10-15 20:10:22,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:22,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:10:22,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:22,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:10:22,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:22,027 INFO L87 Difference]: Start difference. First operand 59 states and 69 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 20:10:22,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:22,060 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2022-10-15 20:10:22,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:10:22,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-15 20:10:22,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:22,066 INFO L225 Difference]: With dead ends: 59 [2022-10-15 20:10:22,067 INFO L226 Difference]: Without dead ends: 55 [2022-10-15 20:10:22,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:22,073 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 9 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:22,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 60 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:22,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-15 20:10:22,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2022-10-15 20:10:22,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 40 states have (on average 1.325) internal successors, (53), 45 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:22,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2022-10-15 20:10:22,086 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 17 [2022-10-15 20:10:22,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:22,086 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2022-10-15 20:10:22,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 20:10:22,090 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-10-15 20:10:22,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-15 20:10:22,090 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:22,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:22,131 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 20:10:22,304 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 20:10:22,305 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:22,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:22,306 INFO L85 PathProgramCache]: Analyzing trace with hash -265412110, now seen corresponding path program 1 times [2022-10-15 20:10:22,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:22,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443718472] [2022-10-15 20:10:22,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:22,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:22,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:10:22,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:22,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443718472] [2022-10-15 20:10:22,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443718472] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:22,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634713310] [2022-10-15 20:10:22,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:22,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:22,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:22,420 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 20:10:22,433 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 20:10:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:22,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:10:22,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:10:22,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:22,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634713310] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:22,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:22,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:10:22,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520568290] [2022-10-15 20:10:22,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:22,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:10:22,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:22,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:10:22,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:22,504 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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 20:10:22,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:22,523 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2022-10-15 20:10:22,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:10:22,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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) Word has length 20 [2022-10-15 20:10:22,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:22,525 INFO L225 Difference]: With dead ends: 63 [2022-10-15 20:10:22,525 INFO L226 Difference]: Without dead ends: 62 [2022-10-15 20:10:22,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:22,526 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 16 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:22,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 68 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:22,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-15 20:10:22,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 48. [2022-10-15 20:10:22,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 47 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:22,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2022-10-15 20:10:22,533 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 20 [2022-10-15 20:10:22,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:22,533 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2022-10-15 20:10:22,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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 20:10:22,534 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2022-10-15 20:10:22,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 20:10:22,535 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:22,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:22,571 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 20:10:22,749 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 20:10:22,750 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:22,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:22,751 INFO L85 PathProgramCache]: Analyzing trace with hash 362159291, now seen corresponding path program 1 times [2022-10-15 20:10:22,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:22,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236505641] [2022-10-15 20:10:22,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:22,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:10:22,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:22,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236505641] [2022-10-15 20:10:22,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236505641] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:22,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22653766] [2022-10-15 20:10:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:22,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:22,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:22,839 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 20:10:22,848 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 20:10:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:22,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:10:22,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:10:22,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:22,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22653766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:22,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:22,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:10:22,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064432074] [2022-10-15 20:10:22,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:22,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:10:22,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:22,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:10:22,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:22,916 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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 20:10:22,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:22,937 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2022-10-15 20:10:22,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:10:22,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-15 20:10:22,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:22,939 INFO L225 Difference]: With dead ends: 63 [2022-10-15 20:10:22,939 INFO L226 Difference]: Without dead ends: 62 [2022-10-15 20:10:22,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:22,940 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 14 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:22,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 69 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:22,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-15 20:10:22,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 49. [2022-10-15 20:10:22,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 43 states have (on average 1.302325581395349) internal successors, (56), 48 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:22,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2022-10-15 20:10:22,947 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 21 [2022-10-15 20:10:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:22,948 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2022-10-15 20:10:22,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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 20:10:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2022-10-15 20:10:22,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 20:10:22,949 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:22,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:22,986 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 20:10:23,162 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 20:10:23,163 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:23,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:23,164 INFO L85 PathProgramCache]: Analyzing trace with hash 129705498, now seen corresponding path program 1 times [2022-10-15 20:10:23,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:23,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805017461] [2022-10-15 20:10:23,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:23,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:23,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:10:23,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:23,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805017461] [2022-10-15 20:10:23,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805017461] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:23,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5764576] [2022-10-15 20:10:23,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:23,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:23,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:23,229 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 20:10:23,257 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 20:10:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:23,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:10:23,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:10:23,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:23,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:10:23,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5764576] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:23,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:23,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 20:10:23,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807728488] [2022-10-15 20:10:23,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:23,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 20:10:23,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:23,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 20:10:23,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:10:23,350 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:23,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:23,391 INFO L93 Difference]: Finished difference Result 99 states and 114 transitions. [2022-10-15 20:10:23,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 20:10:23,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-15 20:10:23,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:23,393 INFO L225 Difference]: With dead ends: 99 [2022-10-15 20:10:23,393 INFO L226 Difference]: Without dead ends: 57 [2022-10-15 20:10:23,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:10:23,394 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 11 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:23,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 258 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:23,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-15 20:10:23,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-10-15 20:10:23,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 56 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:23,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2022-10-15 20:10:23,402 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 24 [2022-10-15 20:10:23,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:23,402 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2022-10-15 20:10:23,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:23,403 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2022-10-15 20:10:23,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 20:10:23,404 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:23,404 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:23,456 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 20:10:23,618 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 20:10:23,620 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:23,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:23,621 INFO L85 PathProgramCache]: Analyzing trace with hash -37875678, now seen corresponding path program 2 times [2022-10-15 20:10:23,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:23,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429534836] [2022-10-15 20:10:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:23,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:10:23,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429534836] [2022-10-15 20:10:23,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429534836] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110239848] [2022-10-15 20:10:23,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:10:23,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:23,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:23,729 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 20:10:23,741 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 20:10:23,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 20:10:23,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:10:23,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:10:23,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:23,806 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 20:10:23,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:23,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110239848] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:23,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:23,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-15 20:10:23,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648174560] [2022-10-15 20:10:23,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:23,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:23,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:23,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:23,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:23,809 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states 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 20:10:23,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:23,844 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2022-10-15 20:10:23,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:23,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-15 20:10:23,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:23,846 INFO L225 Difference]: With dead ends: 96 [2022-10-15 20:10:23,846 INFO L226 Difference]: Without dead ends: 78 [2022-10-15 20:10:23,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-15 20:10:23,847 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 29 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:23,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 100 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:23,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-15 20:10:23,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 58. [2022-10-15 20:10:23,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 52 states have (on average 1.25) internal successors, (65), 57 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:23,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2022-10-15 20:10:23,855 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 32 [2022-10-15 20:10:23,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:23,856 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2022-10-15 20:10:23,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states 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 20:10:23,856 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-10-15 20:10:23,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-15 20:10:23,857 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:23,857 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:23,898 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 20:10:24,071 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 20:10:24,072 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:24,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:24,073 INFO L85 PathProgramCache]: Analyzing trace with hash -2037306074, now seen corresponding path program 1 times [2022-10-15 20:10:24,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:24,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183000024] [2022-10-15 20:10:24,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:24,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:10:24,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:24,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183000024] [2022-10-15 20:10:24,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183000024] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:24,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441662932] [2022-10-15 20:10:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:24,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:24,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:24,144 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 20:10:24,174 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 20:10:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:24,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:10:24,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:10:24,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:24,370 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:10:24,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441662932] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:24,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:24,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 18 [2022-10-15 20:10:24,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760815276] [2022-10-15 20:10:24,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:24,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 20:10:24,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:24,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 20:10:24,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-10-15 20:10:24,373 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states 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 20:10:24,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:24,557 INFO L93 Difference]: Finished difference Result 144 states and 166 transitions. [2022-10-15 20:10:24,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 20:10:24,557 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-15 20:10:24,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:24,558 INFO L225 Difference]: With dead ends: 144 [2022-10-15 20:10:24,558 INFO L226 Difference]: Without dead ends: 101 [2022-10-15 20:10:24,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2022-10-15 20:10:24,560 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 53 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:24,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 291 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:10:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-15 20:10:24,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 87. [2022-10-15 20:10:24,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 81 states have (on average 1.1728395061728396) internal successors, (95), 86 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:24,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2022-10-15 20:10:24,568 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 34 [2022-10-15 20:10:24,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:24,569 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2022-10-15 20:10:24,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states 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 20:10:24,569 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2022-10-15 20:10:24,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-15 20:10:24,571 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:24,571 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:24,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-10-15 20:10:24,784 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 20:10:24,785 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:24,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:24,786 INFO L85 PathProgramCache]: Analyzing trace with hash -422076987, now seen corresponding path program 2 times [2022-10-15 20:10:24,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:24,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191422869] [2022-10-15 20:10:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:24,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:24,871 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-15 20:10:24,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:24,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191422869] [2022-10-15 20:10:24,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191422869] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:24,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:24,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:24,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298385793] [2022-10-15 20:10:24,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:24,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:24,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:24,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:24,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:24,873 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 20:10:24,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:24,889 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2022-10-15 20:10:24,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:24,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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) Word has length 56 [2022-10-15 20:10:24,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:24,891 INFO L225 Difference]: With dead ends: 87 [2022-10-15 20:10:24,891 INFO L226 Difference]: Without dead ends: 86 [2022-10-15 20:10:24,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:24,892 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 5 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:24,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 103 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:24,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-15 20:10:24,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-10-15 20:10:24,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 81 states have (on average 1.1604938271604939) internal successors, (94), 85 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:24,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2022-10-15 20:10:24,900 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 56 [2022-10-15 20:10:24,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:24,900 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2022-10-15 20:10:24,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 20:10:24,900 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2022-10-15 20:10:24,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-15 20:10:24,902 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:24,902 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:24,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 20:10:24,903 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:24,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:24,903 INFO L85 PathProgramCache]: Analyzing trace with hash -199484577, now seen corresponding path program 1 times [2022-10-15 20:10:24,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:24,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425427488] [2022-10-15 20:10:24,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:24,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:25,042 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-15 20:10:25,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:25,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425427488] [2022-10-15 20:10:25,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425427488] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:25,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92406294] [2022-10-15 20:10:25,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:25,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:25,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:25,050 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 20:10:25,072 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 20:10:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:25,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 20:10:25,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 20:10:25,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 20:10:25,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92406294] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:25,652 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:25,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 35 [2022-10-15 20:10:25,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303465595] [2022-10-15 20:10:25,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:25,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-15 20:10:25,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:25,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-15 20:10:25,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=909, Unknown=0, NotChecked=0, Total=1190 [2022-10-15 20:10:25,655 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 35 states, 35 states have (on average 2.914285714285714) internal successors, (102), 35 states have internal predecessors, (102), 0 states have call successors, (0), 0 states 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 20:10:26,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:26,034 INFO L93 Difference]: Finished difference Result 203 states and 232 transitions. [2022-10-15 20:10:26,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-15 20:10:26,035 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.914285714285714) internal successors, (102), 35 states have internal predecessors, (102), 0 states have call successors, (0), 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 57 [2022-10-15 20:10:26,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:26,036 INFO L225 Difference]: With dead ends: 203 [2022-10-15 20:10:26,036 INFO L226 Difference]: Without dead ends: 148 [2022-10-15 20:10:26,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=632, Invalid=1720, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 20:10:26,039 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 163 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:26,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 182 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:10:26,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-10-15 20:10:26,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 134. [2022-10-15 20:10:26,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 129 states have (on average 1.1162790697674418) internal successors, (144), 133 states have internal predecessors, (144), 0 states have call successors, (0), 0 states 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 20:10:26,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 144 transitions. [2022-10-15 20:10:26,048 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 144 transitions. Word has length 57 [2022-10-15 20:10:26,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:26,049 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 144 transitions. [2022-10-15 20:10:26,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.914285714285714) internal successors, (102), 35 states have internal predecessors, (102), 0 states have call successors, (0), 0 states 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 20:10:26,049 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2022-10-15 20:10:26,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-15 20:10:26,051 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:26,051 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:26,089 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 20:10:26,266 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,SelfDestructingSolverStorable13 [2022-10-15 20:10:26,267 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:26,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:26,268 INFO L85 PathProgramCache]: Analyzing trace with hash 460642256, now seen corresponding path program 2 times [2022-10-15 20:10:26,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:26,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484099314] [2022-10-15 20:10:26,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:26,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:26,433 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:10:26,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:26,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484099314] [2022-10-15 20:10:26,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484099314] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:26,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260233315] [2022-10-15 20:10:26,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:10:26,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:26,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:26,436 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 20:10:26,440 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 20:10:26,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 20:10:26,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:10:26,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:10:26,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:26,531 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2022-10-15 20:10:26,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:26,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260233315] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:26,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:26,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2022-10-15 20:10:26,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055791939] [2022-10-15 20:10:26,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:26,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 20:10:26,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:26,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 20:10:26,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:10:26,533 INFO L87 Difference]: Start difference. First operand 134 states and 144 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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 20:10:26,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:26,582 INFO L93 Difference]: Finished difference Result 146 states and 157 transitions. [2022-10-15 20:10:26,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:10:26,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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 95 [2022-10-15 20:10:26,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:26,584 INFO L225 Difference]: With dead ends: 146 [2022-10-15 20:10:26,585 INFO L226 Difference]: Without dead ends: 145 [2022-10-15 20:10:26,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-10-15 20:10:26,586 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 28 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:26,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 124 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:26,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-10-15 20:10:26,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 140. [2022-10-15 20:10:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 135 states have (on average 1.1185185185185185) internal successors, (151), 139 states have internal predecessors, (151), 0 states have call successors, (0), 0 states 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 20:10:26,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 151 transitions. [2022-10-15 20:10:26,610 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 151 transitions. Word has length 95 [2022-10-15 20:10:26,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:26,610 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 151 transitions. [2022-10-15 20:10:26,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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 20:10:26,611 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 151 transitions. [2022-10-15 20:10:26,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-15 20:10:26,612 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:26,612 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:26,652 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 20:10:26,826 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,SelfDestructingSolverStorable14 [2022-10-15 20:10:26,826 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:26,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:26,827 INFO L85 PathProgramCache]: Analyzing trace with hash 573052645, now seen corresponding path program 1 times [2022-10-15 20:10:26,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:26,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217575912] [2022-10-15 20:10:26,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:26,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:26,996 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2022-10-15 20:10:26,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:26,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217575912] [2022-10-15 20:10:26,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217575912] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:26,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:26,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:26,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252184847] [2022-10-15 20:10:26,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:26,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:26,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:26,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:26,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:26,999 INFO L87 Difference]: Start difference. First operand 140 states and 151 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:27,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:27,029 INFO L93 Difference]: Finished difference Result 145 states and 156 transitions. [2022-10-15 20:10:27,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:27,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-10-15 20:10:27,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:27,031 INFO L225 Difference]: With dead ends: 145 [2022-10-15 20:10:27,031 INFO L226 Difference]: Without dead ends: 143 [2022-10-15 20:10:27,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:27,032 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 3 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:27,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 96 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:27,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-10-15 20:10:27,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2022-10-15 20:10:27,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 138 states have (on average 1.1159420289855073) internal successors, (154), 142 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 20:10:27,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 154 transitions. [2022-10-15 20:10:27,041 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 154 transitions. Word has length 98 [2022-10-15 20:10:27,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:27,041 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 154 transitions. [2022-10-15 20:10:27,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:27,041 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 154 transitions. [2022-10-15 20:10:27,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-15 20:10:27,042 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:27,043 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:27,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 20:10:27,043 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:27,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:27,043 INFO L85 PathProgramCache]: Analyzing trace with hash -683516503, now seen corresponding path program 1 times [2022-10-15 20:10:27,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:27,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676249771] [2022-10-15 20:10:27,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:27,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-10-15 20:10:27,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:27,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676249771] [2022-10-15 20:10:27,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676249771] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:27,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:27,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:10:27,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898675721] [2022-10-15 20:10:27,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:27,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:10:27,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:27,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:10:27,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:10:27,140 INFO L87 Difference]: Start difference. First operand 143 states and 154 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 20:10:27,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:27,155 INFO L93 Difference]: Finished difference Result 143 states and 154 transitions. [2022-10-15 20:10:27,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:10:27,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 101 [2022-10-15 20:10:27,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:27,157 INFO L225 Difference]: With dead ends: 143 [2022-10-15 20:10:27,157 INFO L226 Difference]: Without dead ends: 142 [2022-10-15 20:10:27,158 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 20:10:27,158 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 15 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:27,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 55 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:27,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-10-15 20:10:27,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-10-15 20:10:27,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 138 states have (on average 1.108695652173913) internal successors, (153), 141 states have internal predecessors, (153), 0 states have call successors, (0), 0 states 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 20:10:27,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 153 transitions. [2022-10-15 20:10:27,166 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 153 transitions. Word has length 101 [2022-10-15 20:10:27,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:27,167 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 153 transitions. [2022-10-15 20:10:27,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 20:10:27,167 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 153 transitions. [2022-10-15 20:10:27,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-15 20:10:27,168 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:27,168 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:27,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 20:10:27,169 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:27,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:27,169 INFO L85 PathProgramCache]: Analyzing trace with hash 285824996, now seen corresponding path program 1 times [2022-10-15 20:10:27,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:27,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583137048] [2022-10-15 20:10:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:27,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:27,327 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2022-10-15 20:10:27,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:27,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583137048] [2022-10-15 20:10:27,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583137048] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:27,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785789291] [2022-10-15 20:10:27,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:27,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:27,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:27,329 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:10:27,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-15 20:10:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:27,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-15 20:10:27,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:27,991 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 20:10:27,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 20:10:29,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785789291] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:29,063 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:29,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 33, 33] total 67 [2022-10-15 20:10:29,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29027575] [2022-10-15 20:10:29,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:29,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-15 20:10:29,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:29,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-15 20:10:29,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1062, Invalid=3360, Unknown=0, NotChecked=0, Total=4422 [2022-10-15 20:10:29,070 INFO L87 Difference]: Start difference. First operand 142 states and 153 transitions. Second operand has 67 states, 67 states have (on average 2.7313432835820897) internal successors, (183), 67 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 20:10:30,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:30,126 INFO L93 Difference]: Finished difference Result 300 states and 339 transitions. [2022-10-15 20:10:30,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-10-15 20:10:30,127 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.7313432835820897) internal successors, (183), 67 states have internal predecessors, (183), 0 states have call successors, (0), 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 102 [2022-10-15 20:10:30,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:30,128 INFO L225 Difference]: With dead ends: 300 [2022-10-15 20:10:30,128 INFO L226 Difference]: Without dead ends: 221 [2022-10-15 20:10:30,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1785 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2537, Invalid=6969, Unknown=0, NotChecked=0, Total=9506 [2022-10-15 20:10:30,134 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 192 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:30,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 652 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:10:30,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-10-15 20:10:30,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 209. [2022-10-15 20:10:30,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 205 states have (on average 1.0731707317073171) internal successors, (220), 208 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:30,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 220 transitions. [2022-10-15 20:10:30,145 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 220 transitions. Word has length 102 [2022-10-15 20:10:30,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:30,145 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 220 transitions. [2022-10-15 20:10:30,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.7313432835820897) internal successors, (183), 67 states have internal predecessors, (183), 0 states have call successors, (0), 0 states 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 20:10:30,146 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 220 transitions. [2022-10-15 20:10:30,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-10-15 20:10:30,148 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:30,148 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:30,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-15 20:10:30,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-15 20:10:30,363 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:30,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:30,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2039167471, now seen corresponding path program 1 times [2022-10-15 20:10:30,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:30,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814139701] [2022-10-15 20:10:30,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:30,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:30,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1915 trivial. 0 not checked. [2022-10-15 20:10:30,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:30,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814139701] [2022-10-15 20:10:30,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814139701] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:30,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:30,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:30,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85749980] [2022-10-15 20:10:30,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:30,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:30,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:30,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:30,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:30,582 INFO L87 Difference]: Start difference. First operand 209 states and 220 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:30,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:30,605 INFO L93 Difference]: Finished difference Result 209 states and 220 transitions. [2022-10-15 20:10:30,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:30,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2022-10-15 20:10:30,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:30,607 INFO L225 Difference]: With dead ends: 209 [2022-10-15 20:10:30,608 INFO L226 Difference]: Without dead ends: 208 [2022-10-15 20:10:30,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:30,609 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 13 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:30,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 80 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:30,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-10-15 20:10:30,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2022-10-15 20:10:30,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 205 states have (on average 1.0682926829268293) internal successors, (219), 207 states have internal predecessors, (219), 0 states have call successors, (0), 0 states 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 20:10:30,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 219 transitions. [2022-10-15 20:10:30,619 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 219 transitions. Word has length 169 [2022-10-15 20:10:30,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:30,619 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 219 transitions. [2022-10-15 20:10:30,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:30,620 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 219 transitions. [2022-10-15 20:10:30,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-10-15 20:10:30,622 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:30,622 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:30,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 20:10:30,622 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:30,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:30,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1210317979, now seen corresponding path program 1 times [2022-10-15 20:10:30,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:30,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604193481] [2022-10-15 20:10:30,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:30,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1917 trivial. 0 not checked. [2022-10-15 20:10:30,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:30,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604193481] [2022-10-15 20:10:30,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604193481] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:30,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:30,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:30,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640922278] [2022-10-15 20:10:30,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:30,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:30,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:30,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:30,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:30,811 INFO L87 Difference]: Start difference. First operand 208 states and 219 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:30,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:30,837 INFO L93 Difference]: Finished difference Result 208 states and 219 transitions. [2022-10-15 20:10:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:30,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2022-10-15 20:10:30,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:30,840 INFO L225 Difference]: With dead ends: 208 [2022-10-15 20:10:30,840 INFO L226 Difference]: Without dead ends: 206 [2022-10-15 20:10:30,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:30,841 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 11 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:30,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 80 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:30,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-10-15 20:10:30,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 200. [2022-10-15 20:10:30,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.0603015075376885) internal successors, (211), 199 states have internal predecessors, (211), 0 states have call successors, (0), 0 states 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 20:10:30,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 211 transitions. [2022-10-15 20:10:30,853 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 211 transitions. Word has length 170 [2022-10-15 20:10:30,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:30,853 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 211 transitions. [2022-10-15 20:10:30,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:30,854 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 211 transitions. [2022-10-15 20:10:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-10-15 20:10:30,856 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:30,856 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:30,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 20:10:30,857 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:30,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:30,857 INFO L85 PathProgramCache]: Analyzing trace with hash -774748209, now seen corresponding path program 1 times [2022-10-15 20:10:30,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:30,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228926142] [2022-10-15 20:10:30,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:30,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:31,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1924 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2022-10-15 20:10:31,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:31,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228926142] [2022-10-15 20:10:31,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228926142] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:31,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008618474] [2022-10-15 20:10:31,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:31,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:31,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:31,136 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:10:31,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-15 20:10:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:31,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-15 20:10:31,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:32,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1924 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-15 20:10:32,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:36,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1924 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-15 20:10:36,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008618474] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:36,682 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:36,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 65, 65] total 132 [2022-10-15 20:10:36,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148535674] [2022-10-15 20:10:36,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:36,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2022-10-15 20:10:36,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:36,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2022-10-15 20:10:36,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4174, Invalid=13118, Unknown=0, NotChecked=0, Total=17292 [2022-10-15 20:10:36,694 INFO L87 Difference]: Start difference. First operand 200 states and 211 transitions. Second operand has 132 states, 132 states have (on average 2.3106060606060606) internal successors, (305), 132 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 20:10:40,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:40,084 INFO L93 Difference]: Finished difference Result 431 states and 490 transitions. [2022-10-15 20:10:40,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-10-15 20:10:40,085 INFO L78 Accepts]: Start accepts. Automaton has has 132 states, 132 states have (on average 2.3106060606060606) internal successors, (305), 132 states have internal predecessors, (305), 0 states have call successors, (0), 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 172 [2022-10-15 20:10:40,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:40,091 INFO L225 Difference]: With dead ends: 431 [2022-10-15 20:10:40,091 INFO L226 Difference]: Without dead ends: 358 [2022-10-15 20:10:40,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7912 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=10189, Invalid=27253, Unknown=0, NotChecked=0, Total=37442 [2022-10-15 20:10:40,105 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 677 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:40,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 155 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:10:40,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-10-15 20:10:40,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 344. [2022-10-15 20:10:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 343 states have (on average 1.0408163265306123) internal successors, (357), 343 states have internal predecessors, (357), 0 states have call successors, (0), 0 states 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 20:10:40,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 357 transitions. [2022-10-15 20:10:40,121 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 357 transitions. Word has length 172 [2022-10-15 20:10:40,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:40,122 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 357 transitions. [2022-10-15 20:10:40,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 132 states, 132 states have (on average 2.3106060606060606) internal successors, (305), 132 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 20:10:40,123 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 357 transitions. [2022-10-15 20:10:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-10-15 20:10:40,128 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:40,128 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:40,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-15 20:10:40,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:40,343 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:10:40,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:40,344 INFO L85 PathProgramCache]: Analyzing trace with hash -750578658, now seen corresponding path program 2 times [2022-10-15 20:10:40,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:40,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431413185] [2022-10-15 20:10:40,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:40,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 7927 backedges. 1 proven. 40 refuted. 0 times theorem prover too weak. 7886 trivial. 0 not checked. [2022-10-15 20:10:40,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:40,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431413185] [2022-10-15 20:10:40,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431413185] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:40,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668485378] [2022-10-15 20:10:40,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:10:40,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:40,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:40,850 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:10:40,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-15 20:10:41,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 20:10:41,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:10:41,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:10:41,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 7927 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7920 trivial. 0 not checked. [2022-10-15 20:10:41,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:41,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668485378] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:41,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:41,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-10-15 20:10:41,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752437564] [2022-10-15 20:10:41,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:41,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:41,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:41,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:41,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:10:41,085 INFO L87 Difference]: Start difference. First operand 344 states and 357 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:41,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:41,119 INFO L93 Difference]: Finished difference Result 344 states and 357 transitions. [2022-10-15 20:10:41,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:41,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 306 [2022-10-15 20:10:41,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:41,121 INFO L225 Difference]: With dead ends: 344 [2022-10-15 20:10:41,122 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 20:10:41,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:10:41,125 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 8 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:41,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 90 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:41,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 20:10:41,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 20:10:41,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states 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 20:10:41,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 20:10:41,127 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 306 [2022-10-15 20:10:41,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:41,128 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 20:10:41,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:41,128 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 20:10:41,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 20:10:41,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-10-15 20:10:41,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-10-15 20:10:41,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-10-15 20:10:41,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-10-15 20:10:41,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-10-15 20:10:41,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-10-15 20:10:41,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-10-15 20:10:41,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-10-15 20:10:41,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-10-15 20:10:41,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-10-15 20:10:41,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-10-15 20:10:41,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-10-15 20:10:41,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-10-15 20:10:41,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-10-15 20:10:41,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-10-15 20:10:41,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-10-15 20:10:41,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-15 20:10:41,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:41,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-15 20:10:41,575 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-10-15 20:10:41,575 INFO L899 garLoopResultBuilder]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2022-10-15 20:10:41,576 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2022-10-15 20:10:41,576 INFO L899 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2022-10-15 20:10:41,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-10-15 20:10:41,576 INFO L895 garLoopResultBuilder]: At program point L19-5(lines 19 22) the Hoare annotation is: (or (<= 1 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~j~0#1| 0)) [2022-10-15 20:10:41,577 INFO L899 garLoopResultBuilder]: For program point L19-6(lines 19 22) no Hoare annotation was computed. [2022-10-15 20:10:41,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-10-15 20:10:41,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-10-15 20:10:41,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-15 20:10:41,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-15 20:10:41,577 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 36) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~j~0#1|)) [2022-10-15 20:10:41,578 INFO L895 garLoopResultBuilder]: At program point L28-3(lines 25 37) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~j~0#1|))) (or (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= 1 |ULTIMATE.start_main_~swapped~0#1|)))) [2022-10-15 20:10:41,578 INFO L902 garLoopResultBuilder]: At program point L45(lines 16 46) the Hoare annotation is: true [2022-10-15 20:10:41,578 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-10-15 20:10:41,578 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-10-15 20:10:41,578 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-10-15 20:10:41,578 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-10-15 20:10:41,578 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 34) no Hoare annotation was computed. [2022-10-15 20:10:41,579 INFO L899 garLoopResultBuilder]: For program point L29-4(lines 29 34) no Hoare annotation was computed. [2022-10-15 20:10:41,579 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-10-15 20:10:41,579 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-10-15 20:10:41,579 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-10-15 20:10:41,579 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2022-10-15 20:10:41,579 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-10-15 20:10:41,579 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-10-15 20:10:41,580 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-10-15 20:10:41,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-10-15 20:10:41,580 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2022-10-15 20:10:41,580 INFO L899 garLoopResultBuilder]: For program point L40-3(line 40) no Hoare annotation was computed. [2022-10-15 20:10:41,580 INFO L899 garLoopResultBuilder]: For program point L40-4(line 40) no Hoare annotation was computed. [2022-10-15 20:10:41,580 INFO L895 garLoopResultBuilder]: At program point L40-5(lines 40 44) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~j~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~x~0#1| 0)) (and (<= 0 (+ 2147483649 |ULTIMATE.start_main_~x~0#1|)) .cse0 (<= 1 |ULTIMATE.start_main_~y~0#1|) .cse1))) [2022-10-15 20:10:41,581 INFO L899 garLoopResultBuilder]: For program point L40-6(lines 40 44) no Hoare annotation was computed. [2022-10-15 20:10:41,581 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-10-15 20:10:41,581 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-15 20:10:41,581 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-10-15 20:10:41,581 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-10-15 20:10:41,581 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-10-15 20:10:41,581 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-10-15 20:10:41,581 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-10-15 20:10:41,582 INFO L899 garLoopResultBuilder]: For program point L41-4(lines 41 43) no Hoare annotation was computed. [2022-10-15 20:10:41,582 INFO L899 garLoopResultBuilder]: For program point L41-5(line 41) no Hoare annotation was computed. [2022-10-15 20:10:41,582 INFO L899 garLoopResultBuilder]: For program point L41-6(line 41) no Hoare annotation was computed. [2022-10-15 20:10:41,582 INFO L895 garLoopResultBuilder]: At program point L41-7(lines 41 43) the Hoare annotation is: (and (<= 0 (+ 2147483649 |ULTIMATE.start_main_~x~0#1|)) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 99999) (<= 1 |ULTIMATE.start_main_~j~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) [2022-10-15 20:10:41,582 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-15 20:10:41,582 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-10-15 20:10:41,583 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 37) no Hoare annotation was computed. [2022-10-15 20:10:41,583 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-10-15 20:10:41,583 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-10-15 20:10:41,583 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-10-15 20:10:41,583 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-10-15 20:10:41,583 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-10-15 20:10:41,588 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:41,591 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 20:10:41,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:10:41 BoogieIcfgContainer [2022-10-15 20:10:41,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 20:10:41,610 INFO L158 Benchmark]: Toolchain (without parser) took 23643.57ms. Allocated memory was 155.2MB in the beginning and 269.5MB in the end (delta: 114.3MB). Free memory was 129.5MB in the beginning and 188.0MB in the end (delta: -58.5MB). Peak memory consumption was 56.4MB. Max. memory is 8.0GB. [2022-10-15 20:10:41,610 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 155.2MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 20:10:41,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.55ms. Allocated memory is still 155.2MB. Free memory was 129.3MB in the beginning and 119.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 20:10:41,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.94ms. Allocated memory is still 155.2MB. Free memory was 119.2MB in the beginning and 117.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 20:10:41,611 INFO L158 Benchmark]: Boogie Preprocessor took 34.77ms. Allocated memory is still 155.2MB. Free memory was 117.5MB in the beginning and 116.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 20:10:41,611 INFO L158 Benchmark]: RCFGBuilder took 508.63ms. Allocated memory is still 155.2MB. Free memory was 116.1MB in the beginning and 135.1MB in the end (delta: -19.0MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. [2022-10-15 20:10:41,612 INFO L158 Benchmark]: TraceAbstraction took 22733.57ms. Allocated memory was 155.2MB in the beginning and 269.5MB in the end (delta: 114.3MB). Free memory was 134.6MB in the beginning and 188.0MB in the end (delta: -53.4MB). Peak memory consumption was 61.4MB. Max. memory is 8.0GB. [2022-10-15 20:10:41,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 155.2MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 304.55ms. Allocated memory is still 155.2MB. Free memory was 129.3MB in the beginning and 119.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.94ms. Allocated memory is still 155.2MB. Free memory was 119.2MB in the beginning and 117.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.77ms. Allocated memory is still 155.2MB. Free memory was 117.5MB in the beginning and 116.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 508.63ms. Allocated memory is still 155.2MB. Free memory was 116.1MB in the beginning and 135.1MB in the end (delta: -19.0MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. * TraceAbstraction took 22733.57ms. Allocated memory was 155.2MB in the beginning and 269.5MB in the end (delta: 114.3MB). Free memory was 134.6MB in the beginning and 188.0MB in the end (delta: -53.4MB). Peak memory consumption was 61.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 22.6s, OverallIterations: 22, TraceHistogramMax: 63, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1369 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1369 mSDsluCounter, 3062 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2253 mSDsCounter, 115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1628 IncrementalHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 115 mSolverCounterUnsat, 809 mSDtfsCounter, 1628 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1519 GetRequests, 1079 SyntacticMatches, 0 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10228 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=21, InterpolantAutomatonStates: 320, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 138 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 86 NumberOfFragments, 76 HoareAnnotationTreeSize, 6 FomulaSimplifications, 585 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 433 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.6s InterpolantComputationTime, 2458 NumberOfCodeBlocks, 2067 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 2805 ConstructedInterpolants, 0 QuantifiedInterpolants, 4195 SizeOfPredicates, 64 NumberOfNonLiveVariables, 1865 ConjunctsInSsa, 152 ConjunctsInUnsatCore, 42 InterpolantComputations, 17 PerfectInterpolantSequences, 24241/29213 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: (((0 <= 2147483649 + x && 1 <= i) && x <= 99999) && 1 <= j) && 0 <= y + 2147483648 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 <= j || j == 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((1 <= i && 1 <= j) && x == 0) || (((0 <= 2147483649 + x && 1 <= i) && 1 <= y) && 1 <= j) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 <= i && 1 <= j - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (1 <= i && 1 <= j) || (1 <= j && 1 <= swapped) RESULT: Ultimate proved your program to be correct! [2022-10-15 20:10:41,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...