/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/reducercommutativity/sep20-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:56:30,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:56:30,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:56:30,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:56:30,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:56:30,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:56:30,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:56:30,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:56:30,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:56:30,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:56:30,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:56:30,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:56:30,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:56:30,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:56:30,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:56:30,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:56:30,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:56:30,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:56:30,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:56:30,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:56:30,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:56:30,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:56:30,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:56:30,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:56:30,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:56:30,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:56:30,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:56:30,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:56:30,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:56:30,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:56:30,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:56:30,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:56:30,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:56:30,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:56:30,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:56:30,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:56:30,638 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:56:30,668 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:56:30,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:56:30,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:56:30,669 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:56:30,670 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:56:30,670 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:56:30,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:56:30,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:56:30,672 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:56:30,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:56:30,672 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:56:30,672 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:56:30,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:56:30,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:56:30,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:56:30,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:56:30,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:56:30,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:56:30,674 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:56:30,674 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:56:30,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:56:30,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:56:30,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:56:30,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:56:30,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:56:30,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:56:30,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:56:30,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:56:30,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:56:30,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:56:30,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:56:30,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:56:30,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:56:30,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:56:31,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:56:31,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:56:31,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:56:31,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:56:31,074 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:56:31,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/sep20-1.i [2022-10-16 14:56:31,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a248be23/5c1e8d2662d444a2b62b5e9cc010ded6/FLAG1f303d72b [2022-10-16 14:56:31,792 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:56:31,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep20-1.i [2022-10-16 14:56:31,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a248be23/5c1e8d2662d444a2b62b5e9cc010ded6/FLAG1f303d72b [2022-10-16 14:56:32,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a248be23/5c1e8d2662d444a2b62b5e9cc010ded6 [2022-10-16 14:56:32,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:56:32,146 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:56:32,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:56:32,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:56:32,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:56:32,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bb0d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32, skipping insertion in model container [2022-10-16 14:56:32,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:56:32,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:56:32,349 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/reducercommutativity/sep20-1.i[1293,1306] [2022-10-16 14:56:32,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:56:32,359 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:56:32,382 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/reducercommutativity/sep20-1.i[1293,1306] [2022-10-16 14:56:32,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:56:32,399 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:56:32,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32 WrapperNode [2022-10-16 14:56:32,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:56:32,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:56:32,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:56:32,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:56:32,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,443 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-10-16 14:56:32,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:56:32,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:56:32,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:56:32,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:56:32,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:56:32,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:56:32,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:56:32,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:56:32,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (1/1) ... [2022-10-16 14:56:32,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:56:32,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:32,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:56:32,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:56:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:56:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:56:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:56:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:56:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:56:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:56:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:56:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:56:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure sep [2022-10-16 14:56:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure sep [2022-10-16 14:56:32,659 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:56:32,662 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:56:32,882 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:56:32,890 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:56:32,890 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 14:56:32,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:32 BoogieIcfgContainer [2022-10-16 14:56:32,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:56:32,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:56:32,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:56:32,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:56:32,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:56:32" (1/3) ... [2022-10-16 14:56:32,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b372e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:32, skipping insertion in model container [2022-10-16 14:56:32,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:32" (2/3) ... [2022-10-16 14:56:32,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b372e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:32, skipping insertion in model container [2022-10-16 14:56:32,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:32" (3/3) ... [2022-10-16 14:56:32,908 INFO L112 eAbstractionObserver]: Analyzing ICFG sep20-1.i [2022-10-16 14:56:32,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:56:32,935 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 14:56:33,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:56:33,037 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;@570c83d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:56:33,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 14:56:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.625) internal successors, (52), 44 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:56:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:56:33,053 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:33,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:56:33,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:33,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:33,062 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 14:56:33,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:33,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648711927] [2022-10-16 14:56:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:33,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:33,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:33,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648711927] [2022-10-16 14:56:33,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648711927] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:33,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:33,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:33,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059066216] [2022-10-16 14:56:33,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:33,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:33,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:33,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:33,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:33,445 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.625) internal successors, (52), 44 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2022-10-16 14:56:33,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:33,583 INFO L93 Difference]: Finished difference Result 96 states and 117 transitions. [2022-10-16 14:56:33,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:33,587 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 [2022-10-16 14:56:33,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:33,604 INFO L225 Difference]: With dead ends: 96 [2022-10-16 14:56:33,604 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 14:56:33,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:56:33,618 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 3 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:33,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 146 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:33,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 14:56:33,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-10-16 14:56:33,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 43 states have internal predecessors, (47), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:33,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-10-16 14:56:33,687 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 5 [2022-10-16 14:56:33,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:33,689 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-10-16 14:56:33,690 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) [2022-10-16 14:56:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-10-16 14:56:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:56:33,692 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:33,692 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:56:33,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:56:33,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:33,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:33,694 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 14:56:33,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:33,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977784669] [2022-10-16 14:56:33,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:33,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:33,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:56:33,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:33,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977784669] [2022-10-16 14:56:33,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977784669] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:33,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:33,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:33,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046685399] [2022-10-16 14:56:33,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:33,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:33,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:33,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:33,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:33,917 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:33,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:33,975 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-10-16 14:56:33,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:33,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 14:56:33,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:33,977 INFO L225 Difference]: With dead ends: 47 [2022-10-16 14:56:33,979 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 14:56:33,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:56:33,983 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 5 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 123 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 [2022-10-16 14:56:33,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 123 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 14:56:33,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-10-16 14:56:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 42 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:34,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-10-16 14:56:34,003 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 9 [2022-10-16 14:56:34,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:34,004 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-10-16 14:56:34,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:34,005 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-10-16 14:56:34,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:56:34,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:34,007 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:56:34,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:56:34,008 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:34,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:34,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 14:56:34,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:34,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355565524] [2022-10-16 14:56:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:34,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:34,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:34,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355565524] [2022-10-16 14:56:34,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355565524] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:34,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709734579] [2022-10-16 14:56:34,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:34,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:34,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:34,255 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:34,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:56:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:34,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:56:34,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:34,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:34,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:56:34,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709734579] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:34,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:56:34,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:56:34,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734000334] [2022-10-16 14:56:34,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:34,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:56:34,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:34,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:56:34,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:56:34,423 INFO L87 Difference]: Start difference. First operand 46 states and 51 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) [2022-10-16 14:56:34,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:34,479 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2022-10-16 14:56:34,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:56:34,479 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 [2022-10-16 14:56:34,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:34,481 INFO L225 Difference]: With dead ends: 46 [2022-10-16 14:56:34,481 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 14:56:34,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:56:34,483 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 34 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:34,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 145 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:34,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 14:56:34,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-10-16 14:56:34,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.5) internal successors, (42), 38 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:34,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-10-16 14:56:34,493 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 10 [2022-10-16 14:56:34,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:34,493 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-10-16 14:56:34,494 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) [2022-10-16 14:56:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-10-16 14:56:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:56:34,494 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:34,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:34,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:56:34,704 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 [2022-10-16 14:56:34,705 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:34,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:34,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1512525501, now seen corresponding path program 1 times [2022-10-16 14:56:34,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:34,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969150506] [2022-10-16 14:56:34,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:34,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:34,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:34,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969150506] [2022-10-16 14:56:34,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969150506] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:34,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005572953] [2022-10-16 14:56:34,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:34,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:34,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:34,786 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:34,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:56:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:34,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:56:34,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:34,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:34,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:34,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005572953] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:34,936 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:34,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:56:34,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727438154] [2022-10-16 14:56:34,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:34,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:56:34,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:34,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:56:34,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:56:34,939 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:35,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:35,002 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2022-10-16 14:56:35,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:56:35,003 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:56:35,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:35,004 INFO L225 Difference]: With dead ends: 85 [2022-10-16 14:56:35,004 INFO L226 Difference]: Without dead ends: 50 [2022-10-16 14:56:35,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:56:35,007 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 9 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:35,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 286 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:35,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-16 14:56:35,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-10-16 14:56:35,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 46 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:35,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2022-10-16 14:56:35,016 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 12 [2022-10-16 14:56:35,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:35,017 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2022-10-16 14:56:35,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:35,017 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2022-10-16 14:56:35,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:56:35,018 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:35,019 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:35,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:35,233 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 [2022-10-16 14:56:35,234 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:35,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:35,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1503946571, now seen corresponding path program 2 times [2022-10-16 14:56:35,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:35,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148234093] [2022-10-16 14:56:35,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:35,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:35,324 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:56:35,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:35,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148234093] [2022-10-16 14:56:35,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148234093] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:35,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:35,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:35,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134108061] [2022-10-16 14:56:35,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:35,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:35,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:35,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:35,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:35,327 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:35,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:35,358 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2022-10-16 14:56:35,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:35,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 14:56:35,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:35,362 INFO L225 Difference]: With dead ends: 63 [2022-10-16 14:56:35,362 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:56:35,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:56:35,364 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 10 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:35,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 120 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:35,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:56:35,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2022-10-16 14:56:35,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 40 states have (on average 1.4) internal successors, (56), 50 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:35,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2022-10-16 14:56:35,380 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 20 [2022-10-16 14:56:35,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:35,380 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2022-10-16 14:56:35,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:35,381 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2022-10-16 14:56:35,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:56:35,382 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:35,382 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:35,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:56:35,382 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:35,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:35,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1503946763, now seen corresponding path program 1 times [2022-10-16 14:56:35,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:35,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980177057] [2022-10-16 14:56:35,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:35,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:35,456 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:56:35,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:35,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980177057] [2022-10-16 14:56:35,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980177057] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:35,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:35,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:35,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107040240] [2022-10-16 14:56:35,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:35,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:35,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:35,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:35,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:35,460 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:35,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:35,489 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2022-10-16 14:56:35,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:35,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 14:56:35,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:35,491 INFO L225 Difference]: With dead ends: 61 [2022-10-16 14:56:35,491 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:56:35,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:56:35,493 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 8 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:35,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 120 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:35,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:56:35,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2022-10-16 14:56:35,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.380952380952381) internal successors, (58), 52 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:35,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2022-10-16 14:56:35,502 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 20 [2022-10-16 14:56:35,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:35,505 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2022-10-16 14:56:35,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:35,505 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2022-10-16 14:56:35,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 14:56:35,506 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:35,506 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:35,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:56:35,507 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting sepErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:35,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1026432674, now seen corresponding path program 1 times [2022-10-16 14:56:35,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:35,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168174557] [2022-10-16 14:56:35,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:35,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:35,643 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:56:35,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:35,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168174557] [2022-10-16 14:56:35,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168174557] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:35,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:35,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:35,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423408274] [2022-10-16 14:56:35,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:35,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:35,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:35,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:35,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:35,646 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:35,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:35,668 INFO L93 Difference]: Finished difference Result 99 states and 115 transitions. [2022-10-16 14:56:35,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:35,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 14:56:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:35,670 INFO L225 Difference]: With dead ends: 99 [2022-10-16 14:56:35,670 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:56:35,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:56:35,675 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 6 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:35,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 123 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:35,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:56:35,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 14:56:35,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 55 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:35,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2022-10-16 14:56:35,692 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 23 [2022-10-16 14:56:35,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:35,692 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2022-10-16 14:56:35,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:35,693 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2022-10-16 14:56:35,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 14:56:35,694 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:35,694 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:35,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:56:35,695 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:35,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:35,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1515961805, now seen corresponding path program 1 times [2022-10-16 14:56:35,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:35,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351462947] [2022-10-16 14:56:35,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:35,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:56:35,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:35,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351462947] [2022-10-16 14:56:35,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351462947] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:35,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479308519] [2022-10-16 14:56:35,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:35,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:35,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:35,803 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:35,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:56:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:35,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:56:35,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:35,971 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:56:35,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:36,081 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:56:36,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479308519] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:36,081 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:36,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 20 [2022-10-16 14:56:36,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477370550] [2022-10-16 14:56:36,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:36,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 14:56:36,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:36,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 14:56:36,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:56:36,084 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 20 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:36,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:36,281 INFO L93 Difference]: Finished difference Result 134 states and 153 transitions. [2022-10-16 14:56:36,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 14:56:36,282 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 14:56:36,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:36,283 INFO L225 Difference]: With dead ends: 134 [2022-10-16 14:56:36,283 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 14:56:36,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2022-10-16 14:56:36,290 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 62 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:36,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 325 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:36,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 14:56:36,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 81. [2022-10-16 14:56:36,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 77 states have internal predecessors, (84), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:36,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2022-10-16 14:56:36,317 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 27 [2022-10-16 14:56:36,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:36,317 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2022-10-16 14:56:36,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:36,318 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2022-10-16 14:56:36,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 14:56:36,319 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:36,319 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:36,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:36,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:36,521 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:36,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:36,522 INFO L85 PathProgramCache]: Analyzing trace with hash 720386173, now seen corresponding path program 1 times [2022-10-16 14:56:36,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:36,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995930569] [2022-10-16 14:56:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:36,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:36,635 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 14:56:36,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:36,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995930569] [2022-10-16 14:56:36,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995930569] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:36,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343881910] [2022-10-16 14:56:36,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:36,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:36,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:36,637 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:36,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:56:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:36,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 14:56:36,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:36,930 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:36,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:37,360 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:37,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343881910] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:37,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:37,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 36 [2022-10-16 14:56:37,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232350502] [2022-10-16 14:56:37,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:37,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 14:56:37,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:37,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 14:56:37,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=979, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 14:56:37,364 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 36 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:37,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:37,833 INFO L93 Difference]: Finished difference Result 180 states and 207 transitions. [2022-10-16 14:56:37,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 14:56:37,834 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 36 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-10-16 14:56:37,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:37,835 INFO L225 Difference]: With dead ends: 180 [2022-10-16 14:56:37,835 INFO L226 Difference]: Without dead ends: 130 [2022-10-16 14:56:37,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=647, Invalid=2109, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 14:56:37,838 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 102 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:37,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 325 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:56:37,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-10-16 14:56:37,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 120. [2022-10-16 14:56:37,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 106 states have (on average 1.2075471698113207) internal successors, (128), 116 states have internal predecessors, (128), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:37,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 133 transitions. [2022-10-16 14:56:37,847 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 133 transitions. Word has length 43 [2022-10-16 14:56:37,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:37,848 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 133 transitions. [2022-10-16 14:56:37,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 36 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:37,848 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 133 transitions. [2022-10-16 14:56:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 14:56:37,851 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:37,851 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:37,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:38,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:38,066 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:38,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:38,067 INFO L85 PathProgramCache]: Analyzing trace with hash -710240669, now seen corresponding path program 1 times [2022-10-16 14:56:38,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:38,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555883421] [2022-10-16 14:56:38,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:38,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:39,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:39,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555883421] [2022-10-16 14:56:39,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555883421] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:39,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105339732] [2022-10-16 14:56:39,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:39,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:39,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:39,041 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:39,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:56:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:39,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 14:56:39,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:39,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:39,924 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:39,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105339732] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:39,924 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:39,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 43 [2022-10-16 14:56:39,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294562697] [2022-10-16 14:56:39,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:39,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-10-16 14:56:39,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:39,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-10-16 14:56:39,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 14:56:39,928 INFO L87 Difference]: Start difference. First operand 120 states and 133 transitions. Second operand has 43 states, 43 states have (on average 2.2325581395348837) internal successors, (96), 43 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:40,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:40,421 INFO L93 Difference]: Finished difference Result 197 states and 227 transitions. [2022-10-16 14:56:40,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-10-16 14:56:40,421 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.2325581395348837) internal successors, (96), 43 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-10-16 14:56:40,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:40,423 INFO L225 Difference]: With dead ends: 197 [2022-10-16 14:56:40,423 INFO L226 Difference]: Without dead ends: 140 [2022-10-16 14:56:40,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 117 SyntacticMatches, 23 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1407 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1093, Invalid=2689, Unknown=0, NotChecked=0, Total=3782 [2022-10-16 14:56:40,426 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 108 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:40,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 367 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:40,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-10-16 14:56:40,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-10-16 14:56:40,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 126 states have (on average 1.1746031746031746) internal successors, (148), 136 states have internal predecessors, (148), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:40,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 153 transitions. [2022-10-16 14:56:40,436 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 153 transitions. Word has length 75 [2022-10-16 14:56:40,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:40,436 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 153 transitions. [2022-10-16 14:56:40,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.2325581395348837) internal successors, (96), 43 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:40,437 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 153 transitions. [2022-10-16 14:56:40,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 14:56:40,438 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:40,438 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:40,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:40,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 14:56:40,654 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:40,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:40,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1645945905, now seen corresponding path program 2 times [2022-10-16 14:56:40,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:40,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403882528] [2022-10-16 14:56:40,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:40,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:40,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:40,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403882528] [2022-10-16 14:56:40,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403882528] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:40,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195276292] [2022-10-16 14:56:40,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:56:40,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:40,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:40,855 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:40,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:56:40,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:56:40,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:40,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:56:40,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:41,016 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:41,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:56:41,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195276292] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:41,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:56:41,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:56:41,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409665451] [2022-10-16 14:56:41,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:41,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:56:41,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:41,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:56:41,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:56:41,019 INFO L87 Difference]: Start difference. First operand 140 states and 153 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:41,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:41,090 INFO L93 Difference]: Finished difference Result 182 states and 207 transitions. [2022-10-16 14:56:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:56:41,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-10-16 14:56:41,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:41,092 INFO L225 Difference]: With dead ends: 182 [2022-10-16 14:56:41,092 INFO L226 Difference]: Without dead ends: 180 [2022-10-16 14:56:41,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:56:41,093 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 30 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:41,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 250 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:41,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-10-16 14:56:41,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 154. [2022-10-16 14:56:41,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 140 states have (on average 1.2285714285714286) internal successors, (172), 150 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:41,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 177 transitions. [2022-10-16 14:56:41,103 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 177 transitions. Word has length 95 [2022-10-16 14:56:41,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:41,103 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 177 transitions. [2022-10-16 14:56:41,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:41,104 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 177 transitions. [2022-10-16 14:56:41,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-16 14:56:41,105 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:41,105 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:41,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:41,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:41,319 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:41,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:41,319 INFO L85 PathProgramCache]: Analyzing trace with hash 2082230398, now seen corresponding path program 1 times [2022-10-16 14:56:41,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:41,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841898186] [2022-10-16 14:56:41,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:41,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:41,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:41,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841898186] [2022-10-16 14:56:41,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841898186] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:41,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771490877] [2022-10-16 14:56:41,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:41,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:41,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:41,570 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:41,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:56:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:41,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:56:41,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:41,709 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:41,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:56:41,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771490877] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:41,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:56:41,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:56:41,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600375175] [2022-10-16 14:56:41,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:41,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:56:41,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:41,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:56:41,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:56:41,712 INFO L87 Difference]: Start difference. First operand 154 states and 177 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:41,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:41,756 INFO L93 Difference]: Finished difference Result 174 states and 201 transitions. [2022-10-16 14:56:41,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:56:41,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-10-16 14:56:41,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:41,759 INFO L225 Difference]: With dead ends: 174 [2022-10-16 14:56:41,759 INFO L226 Difference]: Without dead ends: 173 [2022-10-16 14:56:41,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:56:41,761 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 29 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:41,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 127 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:41,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-10-16 14:56:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 161. [2022-10-16 14:56:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 147 states have (on average 1.251700680272109) internal successors, (184), 157 states have internal predecessors, (184), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 189 transitions. [2022-10-16 14:56:41,769 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 189 transitions. Word has length 96 [2022-10-16 14:56:41,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:41,769 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 189 transitions. [2022-10-16 14:56:41,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:41,770 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 189 transitions. [2022-10-16 14:56:41,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-16 14:56:41,778 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:41,778 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:41,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:41,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:41,993 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:41,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:41,994 INFO L85 PathProgramCache]: Analyzing trace with hash 2082236356, now seen corresponding path program 1 times [2022-10-16 14:56:41,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:41,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60835235] [2022-10-16 14:56:41,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:41,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:42,205 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:42,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:42,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60835235] [2022-10-16 14:56:42,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60835235] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:42,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043357141] [2022-10-16 14:56:42,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:42,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:42,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:42,207 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:42,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:56:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:42,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:56:42,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:42,353 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:42,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:56:42,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043357141] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:42,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:56:42,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:56:42,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135238519] [2022-10-16 14:56:42,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:42,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:56:42,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:42,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:56:42,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:56:42,356 INFO L87 Difference]: Start difference. First operand 161 states and 189 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:42,427 INFO L93 Difference]: Finished difference Result 205 states and 246 transitions. [2022-10-16 14:56:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:56:42,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-10-16 14:56:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:42,429 INFO L225 Difference]: With dead ends: 205 [2022-10-16 14:56:42,430 INFO L226 Difference]: Without dead ends: 203 [2022-10-16 14:56:42,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:56:42,431 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 32 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:42,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 202 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:42,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-10-16 14:56:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 175. [2022-10-16 14:56:42,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 161 states have (on average 1.2857142857142858) internal successors, (207), 171 states have internal predecessors, (207), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 212 transitions. [2022-10-16 14:56:42,441 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 212 transitions. Word has length 96 [2022-10-16 14:56:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:42,441 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 212 transitions. [2022-10-16 14:56:42,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 212 transitions. [2022-10-16 14:56:42,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-16 14:56:42,443 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:42,443 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:42,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:42,656 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,SelfDestructingSolverStorable12 [2022-10-16 14:56:42,657 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:42,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:42,658 INFO L85 PathProgramCache]: Analyzing trace with hash 515284600, now seen corresponding path program 1 times [2022-10-16 14:56:42,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:42,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581426154] [2022-10-16 14:56:42,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:42,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:42,819 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:42,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:42,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581426154] [2022-10-16 14:56:42,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581426154] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:42,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297617407] [2022-10-16 14:56:42,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:42,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:42,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:42,821 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:42,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:56:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:42,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:56:42,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:42,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:43,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297617407] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:43,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:43,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:56:43,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788067387] [2022-10-16 14:56:43,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:43,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:56:43,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:43,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:56:43,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:56:43,003 INFO L87 Difference]: Start difference. First operand 175 states and 212 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:43,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:43,155 INFO L93 Difference]: Finished difference Result 229 states and 287 transitions. [2022-10-16 14:56:43,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 14:56:43,156 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-10-16 14:56:43,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:43,157 INFO L225 Difference]: With dead ends: 229 [2022-10-16 14:56:43,158 INFO L226 Difference]: Without dead ends: 227 [2022-10-16 14:56:43,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2022-10-16 14:56:43,159 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 77 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:43,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 312 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:43,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-10-16 14:56:43,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 188. [2022-10-16 14:56:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 184 states have internal predecessors, (227), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:43,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 232 transitions. [2022-10-16 14:56:43,170 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 232 transitions. Word has length 96 [2022-10-16 14:56:43,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:43,170 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 232 transitions. [2022-10-16 14:56:43,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:43,171 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 232 transitions. [2022-10-16 14:56:43,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-16 14:56:43,172 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:43,172 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:43,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-10-16 14:56:43,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 14:56:43,387 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:43,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:43,388 INFO L85 PathProgramCache]: Analyzing trace with hash 515290558, now seen corresponding path program 1 times [2022-10-16 14:56:43,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:43,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403039119] [2022-10-16 14:56:43,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:43,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:43,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:43,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403039119] [2022-10-16 14:56:43,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403039119] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:43,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618733893] [2022-10-16 14:56:43,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:43,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:43,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:43,567 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:43,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:56:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:43,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:56:43,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:43,711 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:43,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:43,755 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:43,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618733893] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:43,756 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:43,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:56:43,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317607421] [2022-10-16 14:56:43,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:43,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:56:43,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:43,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:56:43,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:56:43,758 INFO L87 Difference]: Start difference. First operand 188 states and 232 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:43,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:43,835 INFO L93 Difference]: Finished difference Result 226 states and 281 transitions. [2022-10-16 14:56:43,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:56:43,836 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-10-16 14:56:43,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:43,838 INFO L225 Difference]: With dead ends: 226 [2022-10-16 14:56:43,838 INFO L226 Difference]: Without dead ends: 225 [2022-10-16 14:56:43,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:56:43,839 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 46 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:43,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 344 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:43,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-10-16 14:56:43,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 206. [2022-10-16 14:56:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 193 states have (on average 1.3212435233160622) internal successors, (255), 202 states have internal predecessors, (255), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:43,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 260 transitions. [2022-10-16 14:56:43,851 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 260 transitions. Word has length 96 [2022-10-16 14:56:43,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:43,851 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 260 transitions. [2022-10-16 14:56:43,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:43,852 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 260 transitions. [2022-10-16 14:56:43,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-16 14:56:43,853 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:43,853 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:43,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:44,067 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,SelfDestructingSolverStorable14 [2022-10-16 14:56:44,068 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting sepErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:44,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:44,069 INFO L85 PathProgramCache]: Analyzing trace with hash -431343904, now seen corresponding path program 1 times [2022-10-16 14:56:44,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:44,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070980706] [2022-10-16 14:56:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:44,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:44,228 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2022-10-16 14:56:44,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:44,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070980706] [2022-10-16 14:56:44,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070980706] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:44,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:44,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:44,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828233949] [2022-10-16 14:56:44,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:44,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:44,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:44,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:44,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:44,232 INFO L87 Difference]: Start difference. First operand 206 states and 260 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:44,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:44,250 INFO L93 Difference]: Finished difference Result 206 states and 260 transitions. [2022-10-16 14:56:44,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:44,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-10-16 14:56:44,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:44,253 INFO L225 Difference]: With dead ends: 206 [2022-10-16 14:56:44,253 INFO L226 Difference]: Without dead ends: 205 [2022-10-16 14:56:44,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:56:44,254 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 11 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:44,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 106 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:44,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-10-16 14:56:44,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2022-10-16 14:56:44,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 193 states have (on average 1.2642487046632125) internal successors, (244), 201 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:44,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 249 transitions. [2022-10-16 14:56:44,265 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 249 transitions. Word has length 98 [2022-10-16 14:56:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:44,266 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 249 transitions. [2022-10-16 14:56:44,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:44,266 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 249 transitions. [2022-10-16 14:56:44,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-16 14:56:44,267 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:44,267 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:44,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 14:56:44,268 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting sepErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:44,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:44,268 INFO L85 PathProgramCache]: Analyzing trace with hash -486759021, now seen corresponding path program 1 times [2022-10-16 14:56:44,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:44,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6250522] [2022-10-16 14:56:44,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:44,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:44,491 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:44,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:44,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6250522] [2022-10-16 14:56:44,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6250522] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:44,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440244090] [2022-10-16 14:56:44,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:44,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:44,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:44,493 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:44,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:56:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:44,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:56:44,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:44,657 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:44,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:56:44,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440244090] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:44,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:56:44,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:56:44,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690534106] [2022-10-16 14:56:44,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:44,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:56:44,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:44,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:56:44,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:56:44,660 INFO L87 Difference]: Start difference. First operand 205 states and 249 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:44,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:44,692 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2022-10-16 14:56:44,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:56:44,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-10-16 14:56:44,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:44,694 INFO L225 Difference]: With dead ends: 205 [2022-10-16 14:56:44,694 INFO L226 Difference]: Without dead ends: 204 [2022-10-16 14:56:44,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:56:44,695 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 22 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:44,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 120 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:44,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-10-16 14:56:44,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-10-16 14:56:44,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 193 states have (on average 1.2072538860103628) internal successors, (233), 200 states have internal predecessors, (233), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:44,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 238 transitions. [2022-10-16 14:56:44,705 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 238 transitions. Word has length 99 [2022-10-16 14:56:44,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:44,705 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 238 transitions. [2022-10-16 14:56:44,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:44,705 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 238 transitions. [2022-10-16 14:56:44,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 14:56:44,706 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:44,707 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:44,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 14:56:44,913 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,SelfDestructingSolverStorable16 [2022-10-16 14:56:44,914 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:44,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:44,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1228307889, now seen corresponding path program 2 times [2022-10-16 14:56:44,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:44,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877919965] [2022-10-16 14:56:44,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:44,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:45,173 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:45,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:45,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877919965] [2022-10-16 14:56:45,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877919965] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:45,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236281619] [2022-10-16 14:56:45,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:56:45,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:45,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:45,175 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) [2022-10-16 14:56:45,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:56:45,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:56:45,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:45,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:56:45,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:45,347 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:45,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:45,435 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:45,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236281619] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:45,436 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:45,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-16 14:56:45,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251409310] [2022-10-16 14:56:45,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:45,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:56:45,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:45,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:56:45,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:56:45,439 INFO L87 Difference]: Start difference. First operand 204 states and 238 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:45,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:45,579 INFO L93 Difference]: Finished difference Result 261 states and 311 transitions. [2022-10-16 14:56:45,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:56:45,579 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-10-16 14:56:45,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:45,581 INFO L225 Difference]: With dead ends: 261 [2022-10-16 14:56:45,582 INFO L226 Difference]: Without dead ends: 260 [2022-10-16 14:56:45,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2022-10-16 14:56:45,583 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 88 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:45,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 253 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:45,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-10-16 14:56:45,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 232. [2022-10-16 14:56:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 221 states have (on average 1.2171945701357465) internal successors, (269), 228 states have internal predecessors, (269), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:45,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 274 transitions. [2022-10-16 14:56:45,602 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 274 transitions. Word has length 102 [2022-10-16 14:56:45,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:45,602 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 274 transitions. [2022-10-16 14:56:45,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:45,603 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 274 transitions. [2022-10-16 14:56:45,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 14:56:45,605 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:45,605 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:45,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:45,819 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,SelfDestructingSolverStorable17 [2022-10-16 14:56:45,819 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:45,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1228307697, now seen corresponding path program 2 times [2022-10-16 14:56:45,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:45,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295801058] [2022-10-16 14:56:45,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:45,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:46,050 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:46,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:46,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295801058] [2022-10-16 14:56:46,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295801058] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:46,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942202233] [2022-10-16 14:56:46,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:56:46,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:46,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:46,053 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) [2022-10-16 14:56:46,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 14:56:46,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:56:46,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:46,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:56:46,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:46,209 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:46,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:46,272 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:46,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942202233] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:46,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:46,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-16 14:56:46,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395411945] [2022-10-16 14:56:46,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:46,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:56:46,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:46,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:56:46,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:56:46,275 INFO L87 Difference]: Start difference. First operand 232 states and 274 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:46,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:46,407 INFO L93 Difference]: Finished difference Result 277 states and 336 transitions. [2022-10-16 14:56:46,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:56:46,408 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-10-16 14:56:46,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:46,410 INFO L225 Difference]: With dead ends: 277 [2022-10-16 14:56:46,410 INFO L226 Difference]: Without dead ends: 275 [2022-10-16 14:56:46,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:56:46,411 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 80 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:46,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 228 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:46,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-10-16 14:56:46,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 218. [2022-10-16 14:56:46,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 208 states have (on average 1.1971153846153846) internal successors, (249), 214 states have internal predecessors, (249), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:46,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 254 transitions. [2022-10-16 14:56:46,427 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 254 transitions. Word has length 102 [2022-10-16 14:56:46,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:46,427 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 254 transitions. [2022-10-16 14:56:46,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:46,428 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 254 transitions. [2022-10-16 14:56:46,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 14:56:46,429 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:46,429 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:46,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:46,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:46,635 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:46,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:46,636 INFO L85 PathProgramCache]: Analyzing trace with hash -989778632, now seen corresponding path program 1 times [2022-10-16 14:56:46,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:46,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787592369] [2022-10-16 14:56:46,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:46,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:46,859 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:46,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:46,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787592369] [2022-10-16 14:56:46,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787592369] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:46,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308913449] [2022-10-16 14:56:46,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:46,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:46,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:46,862 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) [2022-10-16 14:56:46,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:56:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:47,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:56:47,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-10-16 14:56:47,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:47,131 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-10-16 14:56:47,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308913449] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:47,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:47,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-10-16 14:56:47,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310542684] [2022-10-16 14:56:47,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:47,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 14:56:47,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:47,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 14:56:47,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:56:47,133 INFO L87 Difference]: Start difference. First operand 218 states and 254 transitions. Second operand has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:47,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:47,356 INFO L93 Difference]: Finished difference Result 316 states and 380 transitions. [2022-10-16 14:56:47,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 14:56:47,357 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-10-16 14:56:47,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:47,359 INFO L225 Difference]: With dead ends: 316 [2022-10-16 14:56:47,359 INFO L226 Difference]: Without dead ends: 315 [2022-10-16 14:56:47,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:56:47,362 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 57 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:47,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 293 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:47,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-10-16 14:56:47,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 258. [2022-10-16 14:56:47,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 248 states have (on average 1.2096774193548387) internal successors, (300), 254 states have internal predecessors, (300), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:47,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 305 transitions. [2022-10-16 14:56:47,386 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 305 transitions. Word has length 103 [2022-10-16 14:56:47,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:47,387 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 305 transitions. [2022-10-16 14:56:47,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:47,387 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 305 transitions. [2022-10-16 14:56:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-16 14:56:47,388 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:47,389 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:47,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:47,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:47,604 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:47,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:47,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1756933775, now seen corresponding path program 1 times [2022-10-16 14:56:47,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:47,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472419716] [2022-10-16 14:56:47,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:47,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:47,869 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:47,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:47,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472419716] [2022-10-16 14:56:47,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472419716] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:47,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716600328] [2022-10-16 14:56:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:47,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:47,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:47,872 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) [2022-10-16 14:56:47,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:56:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:47,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:56:47,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:48,038 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-10-16 14:56:48,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:48,133 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-10-16 14:56:48,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716600328] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:48,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:48,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 17 [2022-10-16 14:56:48,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687678867] [2022-10-16 14:56:48,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:48,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:56:48,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:48,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:56:48,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:56:48,135 INFO L87 Difference]: Start difference. First operand 258 states and 305 transitions. Second operand has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:48,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:48,417 INFO L93 Difference]: Finished difference Result 434 states and 530 transitions. [2022-10-16 14:56:48,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 14:56:48,417 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-10-16 14:56:48,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:48,420 INFO L225 Difference]: With dead ends: 434 [2022-10-16 14:56:48,420 INFO L226 Difference]: Without dead ends: 433 [2022-10-16 14:56:48,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=270, Invalid=920, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 14:56:48,422 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 80 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:48,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 455 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:48,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-10-16 14:56:48,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 320. [2022-10-16 14:56:48,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 310 states have (on average 1.2225806451612904) internal successors, (379), 316 states have internal predecessors, (379), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:48,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 384 transitions. [2022-10-16 14:56:48,442 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 384 transitions. Word has length 109 [2022-10-16 14:56:48,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:48,442 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 384 transitions. [2022-10-16 14:56:48,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:48,442 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 384 transitions. [2022-10-16 14:56:48,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-16 14:56:48,444 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:48,444 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:48,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:48,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:48,658 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:48,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:48,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1840535178, now seen corresponding path program 1 times [2022-10-16 14:56:48,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:48,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848631385] [2022-10-16 14:56:48,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:48,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:48,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 14:56:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:48,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 14:56:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:48,888 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-10-16 14:56:48,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:48,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848631385] [2022-10-16 14:56:48,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848631385] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:48,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922548613] [2022-10-16 14:56:48,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:48,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:48,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:48,890 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:48,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 14:56:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:49,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:56:49,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:49,033 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-10-16 14:56:49,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:56:49,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922548613] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:49,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:56:49,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 14:56:49,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823333308] [2022-10-16 14:56:49,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:49,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:56:49,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:49,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:56:49,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:56:49,036 INFO L87 Difference]: Start difference. First operand 320 states and 384 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:49,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:49,064 INFO L93 Difference]: Finished difference Result 552 states and 678 transitions. [2022-10-16 14:56:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:56:49,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 113 [2022-10-16 14:56:49,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:49,069 INFO L225 Difference]: With dead ends: 552 [2022-10-16 14:56:49,069 INFO L226 Difference]: Without dead ends: 328 [2022-10-16 14:56:49,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:56:49,071 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 7 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:49,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 69 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:49,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-10-16 14:56:49,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 322. [2022-10-16 14:56:49,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 312 states have (on average 1.2211538461538463) internal successors, (381), 318 states have internal predecessors, (381), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:49,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 386 transitions. [2022-10-16 14:56:49,087 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 386 transitions. Word has length 113 [2022-10-16 14:56:49,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:49,088 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 386 transitions. [2022-10-16 14:56:49,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:49,088 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 386 transitions. [2022-10-16 14:56:49,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 14:56:49,089 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:49,090 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:49,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:49,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 14:56:49,305 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:49,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:49,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1222015735, now seen corresponding path program 1 times [2022-10-16 14:56:49,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:49,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115953525] [2022-10-16 14:56:49,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:49,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:49,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 14:56:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:49,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 14:56:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:49,487 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-10-16 14:56:49,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:49,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115953525] [2022-10-16 14:56:49,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115953525] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:49,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933125562] [2022-10-16 14:56:49,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:49,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:49,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:49,489 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:49,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 14:56:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:49,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:56:49,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:49,636 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-10-16 14:56:49,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:56:49,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933125562] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:49,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:56:49,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 14:56:49,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258412588] [2022-10-16 14:56:49,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:49,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:56:49,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:49,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:56:49,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:56:49,641 INFO L87 Difference]: Start difference. First operand 322 states and 386 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:49,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:49,664 INFO L93 Difference]: Finished difference Result 329 states and 393 transitions. [2022-10-16 14:56:49,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:56:49,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 114 [2022-10-16 14:56:49,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:49,667 INFO L225 Difference]: With dead ends: 329 [2022-10-16 14:56:49,667 INFO L226 Difference]: Without dead ends: 328 [2022-10-16 14:56:49,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:56:49,668 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 6 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:49,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 69 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:49,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-10-16 14:56:49,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 323. [2022-10-16 14:56:49,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 313 states have (on average 1.220447284345048) internal successors, (382), 319 states have internal predecessors, (382), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:49,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 387 transitions. [2022-10-16 14:56:49,684 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 387 transitions. Word has length 114 [2022-10-16 14:56:49,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:49,685 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 387 transitions. [2022-10-16 14:56:49,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:49,685 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 387 transitions. [2022-10-16 14:56:49,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-16 14:56:49,686 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:49,687 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:49,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:49,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:49,901 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:49,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:49,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1831051673, now seen corresponding path program 1 times [2022-10-16 14:56:49,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:49,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996687292] [2022-10-16 14:56:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:49,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:50,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 14:56:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:50,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 14:56:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-10-16 14:56:50,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:50,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996687292] [2022-10-16 14:56:50,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996687292] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:50,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366128075] [2022-10-16 14:56:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:50,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:50,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:50,091 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:50,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 14:56:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:50,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:56:50,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:50,253 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 784 trivial. 0 not checked. [2022-10-16 14:56:50,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:50,299 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-10-16 14:56:50,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366128075] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:50,299 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:50,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-10-16 14:56:50,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2354872] [2022-10-16 14:56:50,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:50,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:56:50,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:50,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:56:50,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:56:50,302 INFO L87 Difference]: Start difference. First operand 323 states and 387 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:56:50,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:50,343 INFO L93 Difference]: Finished difference Result 574 states and 704 transitions. [2022-10-16 14:56:50,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:56:50,344 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 116 [2022-10-16 14:56:50,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:50,347 INFO L225 Difference]: With dead ends: 574 [2022-10-16 14:56:50,347 INFO L226 Difference]: Without dead ends: 335 [2022-10-16 14:56:50,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:56:50,350 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 34 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:50,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 215 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:50,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-10-16 14:56:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2022-10-16 14:56:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 325 states have (on average 1.2) internal successors, (390), 331 states have internal predecessors, (390), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:50,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 395 transitions. [2022-10-16 14:56:50,369 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 395 transitions. Word has length 116 [2022-10-16 14:56:50,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:50,369 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 395 transitions. [2022-10-16 14:56:50,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:56:50,370 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 395 transitions. [2022-10-16 14:56:50,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-16 14:56:50,371 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:50,371 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:50,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:50,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:50,587 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:50,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:50,587 INFO L85 PathProgramCache]: Analyzing trace with hash -196343420, now seen corresponding path program 2 times [2022-10-16 14:56:50,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:50,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576220506] [2022-10-16 14:56:50,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:50,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:50,880 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 5 proven. 40 refuted. 0 times theorem prover too weak. 785 trivial. 0 not checked. [2022-10-16 14:56:50,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:50,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576220506] [2022-10-16 14:56:50,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576220506] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:50,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859309876] [2022-10-16 14:56:50,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:56:50,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:50,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:50,882 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:50,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 14:56:51,021 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:56:51,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:51,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:56:51,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:51,092 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2022-10-16 14:56:51,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:51,203 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2022-10-16 14:56:51,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859309876] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:51,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:51,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 17 [2022-10-16 14:56:51,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659683843] [2022-10-16 14:56:51,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:51,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:56:51,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:51,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:56:51,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:56:51,206 INFO L87 Difference]: Start difference. First operand 335 states and 395 transitions. Second operand has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:51,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:51,468 INFO L93 Difference]: Finished difference Result 611 states and 749 transitions. [2022-10-16 14:56:51,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 14:56:51,468 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-10-16 14:56:51,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:51,472 INFO L225 Difference]: With dead ends: 611 [2022-10-16 14:56:51,472 INFO L226 Difference]: Without dead ends: 610 [2022-10-16 14:56:51,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 14:56:51,473 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 112 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:51,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 208 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:51,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-10-16 14:56:51,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 404. [2022-10-16 14:56:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 394 states have (on average 1.2131979695431472) internal successors, (478), 400 states have internal predecessors, (478), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:51,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 483 transitions. [2022-10-16 14:56:51,501 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 483 transitions. Word has length 117 [2022-10-16 14:56:51,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:51,501 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 483 transitions. [2022-10-16 14:56:51,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:51,502 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 483 transitions. [2022-10-16 14:56:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-10-16 14:56:51,503 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:51,504 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 6, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:51,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:51,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:51,719 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:51,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:51,720 INFO L85 PathProgramCache]: Analyzing trace with hash 902624847, now seen corresponding path program 2 times [2022-10-16 14:56:51,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:51,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350367621] [2022-10-16 14:56:51,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:51,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:52,042 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-10-16 14:56:52,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:52,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350367621] [2022-10-16 14:56:52,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350367621] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:52,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178727125] [2022-10-16 14:56:52,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:56:52,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:52,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:52,046 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:52,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 14:56:52,215 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:56:52,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:52,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 14:56:52,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:52,328 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-10-16 14:56:52,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-10-16 14:56:52,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178727125] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:52,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:52,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 14:56:52,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656544309] [2022-10-16 14:56:52,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:52,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:56:52,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:52,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:56:52,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:56:52,547 INFO L87 Difference]: Start difference. First operand 404 states and 483 transitions. Second operand has 24 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:52,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:52,947 INFO L93 Difference]: Finished difference Result 737 states and 911 transitions. [2022-10-16 14:56:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 14:56:52,947 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-10-16 14:56:52,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:52,953 INFO L225 Difference]: With dead ends: 737 [2022-10-16 14:56:52,953 INFO L226 Difference]: Without dead ends: 736 [2022-10-16 14:56:52,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 234 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 14:56:52,956 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 121 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:52,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 396 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:52,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-10-16 14:56:52,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 504. [2022-10-16 14:56:52,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 494 states have (on average 1.228744939271255) internal successors, (607), 500 states have internal predecessors, (607), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:52,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 612 transitions. [2022-10-16 14:56:52,999 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 612 transitions. Word has length 123 [2022-10-16 14:56:52,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:53,000 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 612 transitions. [2022-10-16 14:56:53,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:53,001 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 612 transitions. [2022-10-16 14:56:53,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-16 14:56:53,003 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:53,003 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 7, 6, 6, 6, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:53,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:53,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 14:56:53,216 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:53,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:53,217 INFO L85 PathProgramCache]: Analyzing trace with hash 21481487, now seen corresponding path program 3 times [2022-10-16 14:56:53,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:53,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727158787] [2022-10-16 14:56:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:53,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 10 proven. 73 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2022-10-16 14:56:53,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:53,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727158787] [2022-10-16 14:56:53,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727158787] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:53,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878546048] [2022-10-16 14:56:53,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:56:53,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:53,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:53,584 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:53,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 14:56:53,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-10-16 14:56:53,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:53,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:56:53,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2022-10-16 14:56:53,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:53,968 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2022-10-16 14:56:53,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878546048] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:53,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:53,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2022-10-16 14:56:53,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968715351] [2022-10-16 14:56:53,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:53,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 14:56:53,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:53,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 14:56:53,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:56:53,972 INFO L87 Difference]: Start difference. First operand 504 states and 612 transitions. Second operand has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:54,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:54,290 INFO L93 Difference]: Finished difference Result 1103 states and 1380 transitions. [2022-10-16 14:56:54,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 14:56:54,291 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-10-16 14:56:54,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:54,298 INFO L225 Difference]: With dead ends: 1103 [2022-10-16 14:56:54,298 INFO L226 Difference]: Without dead ends: 1102 [2022-10-16 14:56:54,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1085, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 14:56:54,300 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 99 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:54,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 307 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:54,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-10-16 14:56:54,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 557. [2022-10-16 14:56:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 547 states have (on average 1.2358318098720293) internal successors, (676), 553 states have internal predecessors, (676), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:54,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 681 transitions. [2022-10-16 14:56:54,349 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 681 transitions. Word has length 130 [2022-10-16 14:56:54,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:54,350 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 681 transitions. [2022-10-16 14:56:54,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:54,350 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 681 transitions. [2022-10-16 14:56:54,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-16 14:56:54,352 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:54,352 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 7, 6, 6, 6, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:54,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:54,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 14:56:54,566 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:54,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:54,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2065808962, now seen corresponding path program 3 times [2022-10-16 14:56:54,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:54,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041773554] [2022-10-16 14:56:54,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:54,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:54,941 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 10 proven. 75 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-10-16 14:56:54,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:54,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041773554] [2022-10-16 14:56:54,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041773554] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:54,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620633362] [2022-10-16 14:56:54,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:56:54,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:54,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:54,944 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:54,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 14:56:55,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 14:56:55,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:55,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:56:55,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2022-10-16 14:56:55,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:56:55,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620633362] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:55,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:56:55,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2022-10-16 14:56:55,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256359464] [2022-10-16 14:56:55,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:55,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:56:55,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:55,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:56:55,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:56:55,137 INFO L87 Difference]: Start difference. First operand 557 states and 681 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:55,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:55,231 INFO L93 Difference]: Finished difference Result 633 states and 773 transitions. [2022-10-16 14:56:55,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:56:55,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-10-16 14:56:55,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:55,238 INFO L225 Difference]: With dead ends: 633 [2022-10-16 14:56:55,238 INFO L226 Difference]: Without dead ends: 632 [2022-10-16 14:56:55,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:56:55,240 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 25 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:55,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 135 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:55,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-10-16 14:56:55,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 567. [2022-10-16 14:56:55,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 557 states have (on average 1.2351885098743267) internal successors, (688), 563 states have internal predecessors, (688), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:55,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 693 transitions. [2022-10-16 14:56:55,299 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 693 transitions. Word has length 131 [2022-10-16 14:56:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:55,300 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 693 transitions. [2022-10-16 14:56:55,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:55,300 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 693 transitions. [2022-10-16 14:56:55,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-16 14:56:55,303 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:55,304 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 7, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:55,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:55,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 14:56:55,505 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:55,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:55,506 INFO L85 PathProgramCache]: Analyzing trace with hash 662212536, now seen corresponding path program 4 times [2022-10-16 14:56:55,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:55,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864014730] [2022-10-16 14:56:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:55,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 14:56:55,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:55,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864014730] [2022-10-16 14:56:55,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864014730] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:55,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491993118] [2022-10-16 14:56:55,881 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:56:55,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:55,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:55,883 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:55,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 14:56:56,044 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:56:56,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:56,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:56:56,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:56,150 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 14:56:56,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:56,336 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 14:56:56,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491993118] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:56,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:56,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 25 [2022-10-16 14:56:56,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337068240] [2022-10-16 14:56:56,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:56,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 14:56:56,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:56,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 14:56:56,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:56:56,339 INFO L87 Difference]: Start difference. First operand 567 states and 693 transitions. Second operand has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:56,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:56,783 INFO L93 Difference]: Finished difference Result 1136 states and 1412 transitions. [2022-10-16 14:56:56,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 14:56:56,784 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-10-16 14:56:56,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:56,794 INFO L225 Difference]: With dead ends: 1136 [2022-10-16 14:56:56,794 INFO L226 Difference]: Without dead ends: 1135 [2022-10-16 14:56:56,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 14:56:56,797 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 115 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:56,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 417 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:56:56,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2022-10-16 14:56:56,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 645. [2022-10-16 14:56:56,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 635 states have (on average 1.2440944881889764) internal successors, (790), 641 states have internal predecessors, (790), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:56,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 795 transitions. [2022-10-16 14:56:56,858 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 795 transitions. Word has length 131 [2022-10-16 14:56:56,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:56,859 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 795 transitions. [2022-10-16 14:56:56,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:56,859 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 795 transitions. [2022-10-16 14:56:56,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-10-16 14:56:56,861 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:56,861 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 8, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:56,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:57,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:57,075 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:57,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:57,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1303700495, now seen corresponding path program 4 times [2022-10-16 14:56:57,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:57,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434744245] [2022-10-16 14:56:57,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:57,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:57,548 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-16 14:56:57,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:57,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434744245] [2022-10-16 14:56:57,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434744245] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:57,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200414293] [2022-10-16 14:56:57,549 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:56:57,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:57,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:57,550 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:57,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 14:56:57,731 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:56:57,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:57,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 14:56:57,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:57,817 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 2 proven. 151 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-10-16 14:56:57,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:58,136 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 2 proven. 151 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2022-10-16 14:56:58,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200414293] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:58,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:58,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 33 [2022-10-16 14:56:58,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58688492] [2022-10-16 14:56:58,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:58,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 14:56:58,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:58,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 14:56:58,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:56:58,139 INFO L87 Difference]: Start difference. First operand 645 states and 795 transitions. Second operand has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 34 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:58,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:58,791 INFO L93 Difference]: Finished difference Result 1700 states and 2131 transitions. [2022-10-16 14:56:58,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-16 14:56:58,792 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 34 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-10-16 14:56:58,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:58,802 INFO L225 Difference]: With dead ends: 1700 [2022-10-16 14:56:58,802 INFO L226 Difference]: Without dead ends: 1699 [2022-10-16 14:56:58,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=832, Invalid=2708, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 14:56:58,805 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 221 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:58,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 453 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:56:58,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-10-16 14:56:58,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1319. [2022-10-16 14:56:58,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1309 states have (on average 1.264323911382735) internal successors, (1655), 1315 states have internal predecessors, (1655), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:58,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1660 transitions. [2022-10-16 14:56:58,991 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1660 transitions. Word has length 137 [2022-10-16 14:56:58,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:58,991 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 1660 transitions. [2022-10-16 14:56:58,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 34 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:58,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1660 transitions. [2022-10-16 14:56:58,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-10-16 14:56:58,995 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:58,995 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:59,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:59,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:59,209 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:59,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1363817767, now seen corresponding path program 2 times [2022-10-16 14:56:59,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:59,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554252284] [2022-10-16 14:56:59,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:59,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:59,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 14:56:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 14:56:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:59,440 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2022-10-16 14:56:59,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:59,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554252284] [2022-10-16 14:56:59,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554252284] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:59,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:59,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:59,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461912525] [2022-10-16 14:56:59,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:59,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:59,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:59,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:59,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:59,445 INFO L87 Difference]: Start difference. First operand 1319 states and 1660 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:59,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:59,570 INFO L93 Difference]: Finished difference Result 1324 states and 1665 transitions. [2022-10-16 14:56:59,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:59,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 144 [2022-10-16 14:56:59,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:59,578 INFO L225 Difference]: With dead ends: 1324 [2022-10-16 14:56:59,578 INFO L226 Difference]: Without dead ends: 1322 [2022-10-16 14:56:59,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:56:59,579 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 3 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:59,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 101 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:59,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-10-16 14:56:59,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1322. [2022-10-16 14:56:59,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1312 states have (on average 1.263719512195122) internal successors, (1658), 1318 states have internal predecessors, (1658), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:59,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1663 transitions. [2022-10-16 14:56:59,699 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1663 transitions. Word has length 144 [2022-10-16 14:56:59,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:59,700 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1663 transitions. [2022-10-16 14:56:59,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:56:59,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1663 transitions. [2022-10-16 14:56:59,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 14:56:59,704 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:59,704 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 9, 8, 8, 8, 6, 6, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:59,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-10-16 14:56:59,705 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:59,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:59,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1216117512, now seen corresponding path program 5 times [2022-10-16 14:56:59,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:59,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185915373] [2022-10-16 14:56:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:59,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:00,235 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 10 proven. 153 refuted. 0 times theorem prover too weak. 809 trivial. 0 not checked. [2022-10-16 14:57:00,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:00,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185915373] [2022-10-16 14:57:00,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185915373] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:00,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048682148] [2022-10-16 14:57:00,235 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:57:00,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:00,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:00,237 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:00,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 14:57:00,676 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-10-16 14:57:00,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:00,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 14:57:00,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:00,792 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 12 proven. 147 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2022-10-16 14:57:00,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:00,997 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 12 proven. 147 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2022-10-16 14:57:00,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048682148] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:00,998 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:00,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 25 [2022-10-16 14:57:00,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387001836] [2022-10-16 14:57:00,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:00,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 14:57:00,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:00,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 14:57:01,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:57:01,000 INFO L87 Difference]: Start difference. First operand 1322 states and 1663 transitions. Second operand has 26 states, 25 states have (on average 3.52) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:01,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:01,642 INFO L93 Difference]: Finished difference Result 3868 states and 4914 transitions. [2022-10-16 14:57:01,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-16 14:57:01,648 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.52) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-10-16 14:57:01,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:01,666 INFO L225 Difference]: With dead ends: 3868 [2022-10-16 14:57:01,666 INFO L226 Difference]: Without dead ends: 3867 [2022-10-16 14:57:01,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=487, Invalid=1769, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 14:57:01,669 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 147 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:01,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 322 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:01,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3867 states. [2022-10-16 14:57:01,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3867 to 2602. [2022-10-16 14:57:01,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2592 states have (on average 1.2739197530864197) internal successors, (3302), 2598 states have internal predecessors, (3302), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:01,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 3307 transitions. [2022-10-16 14:57:01,932 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 3307 transitions. Word has length 145 [2022-10-16 14:57:01,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:01,933 INFO L495 AbstractCegarLoop]: Abstraction has 2602 states and 3307 transitions. [2022-10-16 14:57:01,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.52) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:01,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 3307 transitions. [2022-10-16 14:57:01,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 14:57:01,937 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:01,937 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 9, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:01,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-10-16 14:57:02,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-10-16 14:57:02,151 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:02,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:02,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1822951676, now seen corresponding path program 6 times [2022-10-16 14:57:02,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:02,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814722175] [2022-10-16 14:57:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:02,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:02,777 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 5 proven. 195 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 14:57:02,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:02,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814722175] [2022-10-16 14:57:02,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814722175] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:02,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372165581] [2022-10-16 14:57:02,778 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:57:02,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:02,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:02,780 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:02,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 14:57:03,510 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2022-10-16 14:57:03,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:03,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 14:57:03,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 5 proven. 195 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 14:57:03,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:03,921 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 5 proven. 195 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 14:57:03,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372165581] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:03,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:03,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2022-10-16 14:57:03,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051617745] [2022-10-16 14:57:03,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:03,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 14:57:03,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:03,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 14:57:03,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=846, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:57:03,924 INFO L87 Difference]: Start difference. First operand 2602 states and 3307 transitions. Second operand has 34 states, 33 states have (on average 3.393939393939394) internal successors, (112), 34 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:04,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:04,780 INFO L93 Difference]: Finished difference Result 5689 states and 7188 transitions. [2022-10-16 14:57:04,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 14:57:04,780 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.393939393939394) internal successors, (112), 34 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-10-16 14:57:04,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:04,808 INFO L225 Difference]: With dead ends: 5689 [2022-10-16 14:57:04,808 INFO L226 Difference]: Without dead ends: 5688 [2022-10-16 14:57:04,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=814, Invalid=2726, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 14:57:04,813 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 175 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:04,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 464 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:04,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5688 states. [2022-10-16 14:57:05,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5688 to 3809. [2022-10-16 14:57:05,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3809 states, 3799 states have (on average 1.2779678862858648) internal successors, (4855), 3805 states have internal predecessors, (4855), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:05,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3809 states to 3809 states and 4860 transitions. [2022-10-16 14:57:05,184 INFO L78 Accepts]: Start accepts. Automaton has 3809 states and 4860 transitions. Word has length 145 [2022-10-16 14:57:05,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:05,185 INFO L495 AbstractCegarLoop]: Abstraction has 3809 states and 4860 transitions. [2022-10-16 14:57:05,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.393939393939394) internal successors, (112), 34 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:05,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3809 states and 4860 transitions. [2022-10-16 14:57:05,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-10-16 14:57:05,190 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:05,190 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:05,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:05,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 14:57:05,406 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:05,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:05,407 INFO L85 PathProgramCache]: Analyzing trace with hash 895593648, now seen corresponding path program 1 times [2022-10-16 14:57:05,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:05,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020190075] [2022-10-16 14:57:05,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:05,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:05,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 14:57:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 14:57:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2022-10-16 14:57:05,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:05,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020190075] [2022-10-16 14:57:05,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020190075] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:57:05,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:57:05,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:57:05,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232851983] [2022-10-16 14:57:05,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:57:05,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:57:05,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:05,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:57:05,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:57:05,534 INFO L87 Difference]: Start difference. First operand 3809 states and 4860 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:57:05,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:05,796 INFO L93 Difference]: Finished difference Result 3809 states and 4860 transitions. [2022-10-16 14:57:05,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:57:05,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 147 [2022-10-16 14:57:05,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:05,817 INFO L225 Difference]: With dead ends: 3809 [2022-10-16 14:57:05,817 INFO L226 Difference]: Without dead ends: 3808 [2022-10-16 14:57:05,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:57:05,819 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 7 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 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 [2022-10-16 14:57:05,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:05,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2022-10-16 14:57:06,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 3808. [2022-10-16 14:57:06,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3808 states, 3799 states have (on average 1.2777046591208212) internal successors, (4854), 3804 states have internal predecessors, (4854), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:06,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 4859 transitions. [2022-10-16 14:57:06,180 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 4859 transitions. Word has length 147 [2022-10-16 14:57:06,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:06,181 INFO L495 AbstractCegarLoop]: Abstraction has 3808 states and 4859 transitions. [2022-10-16 14:57:06,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:57:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 4859 transitions. [2022-10-16 14:57:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 14:57:06,187 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:06,187 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:06,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-10-16 14:57:06,188 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:06,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:06,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1993599377, now seen corresponding path program 1 times [2022-10-16 14:57:06,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:06,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198790471] [2022-10-16 14:57:06,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:06,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:06,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 14:57:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:06,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 14:57:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:06,380 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2022-10-16 14:57:06,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:06,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198790471] [2022-10-16 14:57:06,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198790471] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:06,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822479097] [2022-10-16 14:57:06,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:06,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:06,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:06,382 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:06,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 14:57:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:06,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:57:06,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:06,624 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 71 proven. 24 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2022-10-16 14:57:06,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:06,733 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2022-10-16 14:57:06,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822479097] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:06,734 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:06,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2022-10-16 14:57:06,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535992468] [2022-10-16 14:57:06,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:06,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 14:57:06,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:06,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 14:57:06,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:57:06,736 INFO L87 Difference]: Start difference. First operand 3808 states and 4859 transitions. Second operand has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 14:57:07,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:07,274 INFO L93 Difference]: Finished difference Result 8190 states and 10444 transitions. [2022-10-16 14:57:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 14:57:07,276 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 148 [2022-10-16 14:57:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:07,299 INFO L225 Difference]: With dead ends: 8190 [2022-10-16 14:57:07,299 INFO L226 Difference]: Without dead ends: 4466 [2022-10-16 14:57:07,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:57:07,313 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 114 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:07,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 322 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:07,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2022-10-16 14:57:07,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 4461. [2022-10-16 14:57:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4461 states, 4452 states have (on average 1.2468553459119496) internal successors, (5551), 4457 states have internal predecessors, (5551), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:07,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4461 states to 4461 states and 5556 transitions. [2022-10-16 14:57:07,787 INFO L78 Accepts]: Start accepts. Automaton has 4461 states and 5556 transitions. Word has length 148 [2022-10-16 14:57:07,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:07,787 INFO L495 AbstractCegarLoop]: Abstraction has 4461 states and 5556 transitions. [2022-10-16 14:57:07,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 14:57:07,788 INFO L276 IsEmpty]: Start isEmpty. Operand 4461 states and 5556 transitions. [2022-10-16 14:57:07,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-10-16 14:57:07,794 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:07,795 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 10, 9, 9, 9, 8, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:07,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:08,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-10-16 14:57:08,009 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:08,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:08,010 INFO L85 PathProgramCache]: Analyzing trace with hash -842399747, now seen corresponding path program 5 times [2022-10-16 14:57:08,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:08,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305901186] [2022-10-16 14:57:08,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:08,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 10 proven. 215 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-10-16 14:57:08,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:08,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305901186] [2022-10-16 14:57:08,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305901186] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:08,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995019037] [2022-10-16 14:57:08,578 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:57:08,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:08,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:08,581 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:08,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 14:57:09,125 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-10-16 14:57:09,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:09,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 14:57:09,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 10 proven. 215 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-10-16 14:57:09,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 10 proven. 215 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-10-16 14:57:09,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995019037] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:09,531 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:09,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2022-10-16 14:57:09,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652137235] [2022-10-16 14:57:09,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:09,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 14:57:09,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:09,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 14:57:09,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=769, Unknown=0, NotChecked=0, Total=992 [2022-10-16 14:57:09,534 INFO L87 Difference]: Start difference. First operand 4461 states and 5556 transitions. Second operand has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:10,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:10,787 INFO L93 Difference]: Finished difference Result 10443 states and 13108 transitions. [2022-10-16 14:57:10,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 14:57:10,788 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2022-10-16 14:57:10,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:10,810 INFO L225 Difference]: With dead ends: 10443 [2022-10-16 14:57:10,811 INFO L226 Difference]: Without dead ends: 10442 [2022-10-16 14:57:10,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=733, Invalid=2689, Unknown=0, NotChecked=0, Total=3422 [2022-10-16 14:57:10,817 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 207 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:10,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 528 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:10,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10442 states. [2022-10-16 14:57:11,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10442 to 7748. [2022-10-16 14:57:11,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7748 states, 7739 states have (on average 1.262953870009045) internal successors, (9774), 7744 states have internal predecessors, (9774), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:11,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7748 states to 7748 states and 9779 transitions. [2022-10-16 14:57:11,561 INFO L78 Accepts]: Start accepts. Automaton has 7748 states and 9779 transitions. Word has length 151 [2022-10-16 14:57:11,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:11,562 INFO L495 AbstractCegarLoop]: Abstraction has 7748 states and 9779 transitions. [2022-10-16 14:57:11,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:11,562 INFO L276 IsEmpty]: Start isEmpty. Operand 7748 states and 9779 transitions. [2022-10-16 14:57:11,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-10-16 14:57:11,573 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:11,573 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 11, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:11,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:11,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:11,787 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:11,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:11,788 INFO L85 PathProgramCache]: Analyzing trace with hash -371879368, now seen corresponding path program 7 times [2022-10-16 14:57:11,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:11,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734324141] [2022-10-16 14:57:11,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:11,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:12,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 5 proven. 318 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 14:57:12,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:12,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734324141] [2022-10-16 14:57:12,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734324141] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:12,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828262085] [2022-10-16 14:57:12,482 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:57:12,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:12,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:12,486 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:12,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-16 14:57:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:12,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:57:12,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:12,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 5 proven. 318 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 14:57:12,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:13,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1115 backedges. 5 proven. 318 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 14:57:13,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828262085] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:13,317 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:13,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 41 [2022-10-16 14:57:13,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734514585] [2022-10-16 14:57:13,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:13,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 14:57:13,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:13,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 14:57:13,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=424, Invalid=1298, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 14:57:13,320 INFO L87 Difference]: Start difference. First operand 7748 states and 9779 transitions. Second operand has 42 states, 41 states have (on average 3.4146341463414633) internal successors, (140), 42 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:14,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:14,752 INFO L93 Difference]: Finished difference Result 14476 states and 18183 transitions. [2022-10-16 14:57:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-10-16 14:57:14,753 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.4146341463414633) internal successors, (140), 42 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2022-10-16 14:57:14,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:14,786 INFO L225 Difference]: With dead ends: 14476 [2022-10-16 14:57:14,787 INFO L226 Difference]: Without dead ends: 14475 [2022-10-16 14:57:14,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1345 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1274, Invalid=4276, Unknown=0, NotChecked=0, Total=5550 [2022-10-16 14:57:14,795 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 329 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:14,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 397 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:57:14,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14475 states. [2022-10-16 14:57:15,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14475 to 8048. [2022-10-16 14:57:15,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8048 states, 8039 states have (on average 1.2637143923373555) internal successors, (10159), 8044 states have internal predecessors, (10159), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:15,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8048 states to 8048 states and 10164 transitions. [2022-10-16 14:57:15,683 INFO L78 Accepts]: Start accepts. Automaton has 8048 states and 10164 transitions. Word has length 159 [2022-10-16 14:57:15,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:15,684 INFO L495 AbstractCegarLoop]: Abstraction has 8048 states and 10164 transitions. [2022-10-16 14:57:15,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.4146341463414633) internal successors, (140), 42 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:15,684 INFO L276 IsEmpty]: Start isEmpty. Operand 8048 states and 10164 transitions. [2022-10-16 14:57:15,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-10-16 14:57:15,696 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:15,696 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 12, 11, 11, 11, 10, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:15,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:15,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 14:57:15,910 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:15,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:15,911 INFO L85 PathProgramCache]: Analyzing trace with hash -609933943, now seen corresponding path program 6 times [2022-10-16 14:57:15,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:15,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221026365] [2022-10-16 14:57:15,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:15,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:16,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 10 proven. 353 refuted. 0 times theorem prover too weak. 797 trivial. 0 not checked. [2022-10-16 14:57:16,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:16,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221026365] [2022-10-16 14:57:16,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221026365] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:16,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116132348] [2022-10-16 14:57:16,634 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:57:16,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:16,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:16,635 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:16,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-16 14:57:17,518 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2022-10-16 14:57:17,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:17,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:57:17,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:17,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 10 proven. 349 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2022-10-16 14:57:17,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:18,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 10 proven. 349 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2022-10-16 14:57:18,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116132348] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:18,058 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:18,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19, 19] total 39 [2022-10-16 14:57:18,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418778601] [2022-10-16 14:57:18,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:18,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 14:57:18,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:18,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 14:57:18,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=1205, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 14:57:18,061 INFO L87 Difference]: Start difference. First operand 8048 states and 10164 transitions. Second operand has 40 states, 39 states have (on average 3.4871794871794872) internal successors, (136), 40 states have internal predecessors, (136), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:19,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:19,742 INFO L93 Difference]: Finished difference Result 16793 states and 21164 transitions. [2022-10-16 14:57:19,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-10-16 14:57:19,743 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.4871794871794872) internal successors, (136), 40 states have internal predecessors, (136), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2022-10-16 14:57:19,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:19,776 INFO L225 Difference]: With dead ends: 16793 [2022-10-16 14:57:19,776 INFO L226 Difference]: Without dead ends: 16792 [2022-10-16 14:57:19,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1278 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1204, Invalid=4198, Unknown=0, NotChecked=0, Total=5402 [2022-10-16 14:57:19,784 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 311 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:19,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 634 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:57:19,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16792 states. [2022-10-16 14:57:20,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16792 to 9736. [2022-10-16 14:57:20,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9736 states, 9727 states have (on average 1.2682224735272951) internal successors, (12336), 9732 states have internal predecessors, (12336), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:20,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9736 states to 9736 states and 12341 transitions. [2022-10-16 14:57:20,847 INFO L78 Accepts]: Start accepts. Automaton has 9736 states and 12341 transitions. Word has length 165 [2022-10-16 14:57:20,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:20,847 INFO L495 AbstractCegarLoop]: Abstraction has 9736 states and 12341 transitions. [2022-10-16 14:57:20,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.4871794871794872) internal successors, (136), 40 states have internal predecessors, (136), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:20,848 INFO L276 IsEmpty]: Start isEmpty. Operand 9736 states and 12341 transitions. [2022-10-16 14:57:20,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 14:57:20,862 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:20,862 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 12, 11, 11, 11, 10, 10, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:20,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:21,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-10-16 14:57:21,077 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:21,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:21,078 INFO L85 PathProgramCache]: Analyzing trace with hash -220060162, now seen corresponding path program 8 times [2022-10-16 14:57:21,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:21,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832074894] [2022-10-16 14:57:21,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:21,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:21,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 5 proven. 372 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 14:57:21,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:21,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832074894] [2022-10-16 14:57:21,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832074894] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:21,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170342954] [2022-10-16 14:57:21,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:57:21,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:21,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:21,831 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:21,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-16 14:57:22,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:57:22,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:22,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:57:22,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:22,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 7 proven. 366 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-10-16 14:57:22,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 7 proven. 366 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-10-16 14:57:22,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170342954] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:22,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:22,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 43 [2022-10-16 14:57:22,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118409048] [2022-10-16 14:57:22,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:22,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-10-16 14:57:22,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:22,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-10-16 14:57:22,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 14:57:22,732 INFO L87 Difference]: Start difference. First operand 9736 states and 12341 transitions. Second operand has 44 states, 43 states have (on average 3.5348837209302326) internal successors, (152), 44 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:24,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:24,939 INFO L93 Difference]: Finished difference Result 23264 states and 29363 transitions. [2022-10-16 14:57:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-10-16 14:57:24,940 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 3.5348837209302326) internal successors, (152), 44 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2022-10-16 14:57:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:24,991 INFO L225 Difference]: With dead ends: 23264 [2022-10-16 14:57:24,991 INFO L226 Difference]: Without dead ends: 23263 [2022-10-16 14:57:25,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1369 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1348, Invalid=4658, Unknown=0, NotChecked=0, Total=6006 [2022-10-16 14:57:25,004 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 333 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:25,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 395 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:57:25,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23263 states. [2022-10-16 14:57:26,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23263 to 15948. [2022-10-16 14:57:26,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15948 states, 15939 states have (on average 1.2755505364201016) internal successors, (20331), 15944 states have internal predecessors, (20331), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:26,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15948 states to 15948 states and 20336 transitions. [2022-10-16 14:57:26,788 INFO L78 Accepts]: Start accepts. Automaton has 15948 states and 20336 transitions. Word has length 166 [2022-10-16 14:57:26,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:26,789 INFO L495 AbstractCegarLoop]: Abstraction has 15948 states and 20336 transitions. [2022-10-16 14:57:26,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 3.5348837209302326) internal successors, (152), 44 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:26,789 INFO L276 IsEmpty]: Start isEmpty. Operand 15948 states and 20336 transitions. [2022-10-16 14:57:26,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 14:57:26,803 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:26,803 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 12, 11, 11, 11, 10, 10, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:26,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-10-16 14:57:27,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-10-16 14:57:27,018 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:27,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:27,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1585788622, now seen corresponding path program 9 times [2022-10-16 14:57:27,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:27,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100118399] [2022-10-16 14:57:27,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:27,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 10 proven. 355 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-10-16 14:57:27,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:27,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100118399] [2022-10-16 14:57:27,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100118399] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:27,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317204244] [2022-10-16 14:57:27,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:57:27,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:27,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:27,738 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:27,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-10-16 14:57:28,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 14:57:28,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:28,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:57:28,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 10 proven. 355 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-10-16 14:57:28,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 10 proven. 355 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-10-16 14:57:28,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317204244] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:28,688 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:28,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2022-10-16 14:57:28,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738812822] [2022-10-16 14:57:28,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:28,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 14:57:28,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:28,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 14:57:28,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=1205, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 14:57:28,690 INFO L87 Difference]: Start difference. First operand 15948 states and 20336 transitions. Second operand has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:32,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:32,804 INFO L93 Difference]: Finished difference Result 48087 states and 60853 transitions. [2022-10-16 14:57:32,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-10-16 14:57:32,804 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2022-10-16 14:57:32,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:32,891 INFO L225 Difference]: With dead ends: 48087 [2022-10-16 14:57:32,892 INFO L226 Difference]: Without dead ends: 48086 [2022-10-16 14:57:32,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1185, Invalid=4365, Unknown=0, NotChecked=0, Total=5550 [2022-10-16 14:57:32,906 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 292 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:32,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 344 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:57:32,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48086 states. [2022-10-16 14:57:35,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48086 to 30027. [2022-10-16 14:57:36,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30027 states, 30018 states have (on average 1.2798654140848824) internal successors, (38419), 30023 states have internal predecessors, (38419), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:36,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30027 states to 30027 states and 38424 transitions. [2022-10-16 14:57:36,110 INFO L78 Accepts]: Start accepts. Automaton has 30027 states and 38424 transitions. Word has length 166 [2022-10-16 14:57:36,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:36,110 INFO L495 AbstractCegarLoop]: Abstraction has 30027 states and 38424 transitions. [2022-10-16 14:57:36,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 30027 states and 38424 transitions. [2022-10-16 14:57:36,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-10-16 14:57:36,127 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:36,127 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 13, 12, 12, 12, 10, 10, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:36,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:36,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-10-16 14:57:36,333 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:36,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:36,334 INFO L85 PathProgramCache]: Analyzing trace with hash -433558588, now seen corresponding path program 10 times [2022-10-16 14:57:36,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:36,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869334802] [2022-10-16 14:57:36,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:36,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:37,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 10 proven. 416 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-10-16 14:57:37,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:37,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869334802] [2022-10-16 14:57:37,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869334802] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:37,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788677572] [2022-10-16 14:57:37,122 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:57:37,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:37,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:37,124 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:37,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-10-16 14:57:37,345 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:57:37,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:37,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 14:57:37,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:37,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 12 proven. 412 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2022-10-16 14:57:37,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:37,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 12 proven. 412 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2022-10-16 14:57:37,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788677572] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:37,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:37,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 20] total 41 [2022-10-16 14:57:37,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909653341] [2022-10-16 14:57:37,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:37,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 14:57:37,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:37,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 14:57:37,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1365, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 14:57:37,941 INFO L87 Difference]: Start difference. First operand 30027 states and 38424 transitions. Second operand has 42 states, 41 states have (on average 3.5121951219512195) internal successors, (144), 42 states have internal predecessors, (144), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:45,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:45,146 INFO L93 Difference]: Finished difference Result 88850 states and 112760 transitions. [2022-10-16 14:57:45,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-10-16 14:57:45,147 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.5121951219512195) internal successors, (144), 42 states have internal predecessors, (144), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2022-10-16 14:57:45,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:45,278 INFO L225 Difference]: With dead ends: 88850 [2022-10-16 14:57:45,278 INFO L226 Difference]: Without dead ends: 88849 [2022-10-16 14:57:45,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1504 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1330, Invalid=4990, Unknown=0, NotChecked=0, Total=6320 [2022-10-16 14:57:45,302 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 267 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:45,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 483 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:57:45,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88849 states. [2022-10-16 14:57:50,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88849 to 52497. [2022-10-16 14:57:50,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52497 states, 52488 states have (on average 1.2822359396433471) internal successors, (67302), 52493 states have internal predecessors, (67302), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52497 states to 52497 states and 67307 transitions. [2022-10-16 14:57:51,038 INFO L78 Accepts]: Start accepts. Automaton has 52497 states and 67307 transitions. Word has length 173 [2022-10-16 14:57:51,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:51,039 INFO L495 AbstractCegarLoop]: Abstraction has 52497 states and 67307 transitions. [2022-10-16 14:57:51,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.5121951219512195) internal successors, (144), 42 states have internal predecessors, (144), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:51,039 INFO L276 IsEmpty]: Start isEmpty. Operand 52497 states and 67307 transitions. [2022-10-16 14:57:51,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-10-16 14:57:51,072 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:51,072 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 15, 14, 14, 14, 13, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:51,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:51,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-10-16 14:57:51,274 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:51,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:51,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1602363203, now seen corresponding path program 7 times [2022-10-16 14:57:51,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:51,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142482856] [2022-10-16 14:57:51,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:51,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 10 proven. 595 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-10-16 14:57:52,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:52,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142482856] [2022-10-16 14:57:52,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142482856] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:52,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848788533] [2022-10-16 14:57:52,215 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:57:52,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:52,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:52,217 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:52,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-10-16 14:57:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:52,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 14:57:52,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 10 proven. 595 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-10-16 14:57:52,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 10 proven. 595 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-10-16 14:57:53,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848788533] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:53,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:53,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 51 [2022-10-16 14:57:53,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944718593] [2022-10-16 14:57:53,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:53,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 14:57:53,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:53,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 14:57:53,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=613, Invalid=2039, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 14:57:53,443 INFO L87 Difference]: Start difference. First operand 52497 states and 67307 transitions. Second operand has 52 states, 51 states have (on average 3.372549019607843) internal successors, (172), 52 states have internal predecessors, (172), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:02,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:58:02,530 INFO L93 Difference]: Finished difference Result 106743 states and 135676 transitions. [2022-10-16 14:58:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-10-16 14:58:02,531 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 3.372549019607843) internal successors, (172), 52 states have internal predecessors, (172), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2022-10-16 14:58:02,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:58:02,697 INFO L225 Difference]: With dead ends: 106743 [2022-10-16 14:58:02,697 INFO L226 Difference]: Without dead ends: 106742 [2022-10-16 14:58:02,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2552 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2067, Invalid=7635, Unknown=0, NotChecked=0, Total=9702 [2022-10-16 14:58:02,726 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 346 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:58:02,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 515 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:58:02,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106742 states. [2022-10-16 14:58:09,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106742 to 58990. [2022-10-16 14:58:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58990 states, 58981 states have (on average 1.282735118088876) internal successors, (75657), 58986 states have internal predecessors, (75657), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:58:09,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58990 states to 58990 states and 75662 transitions. [2022-10-16 14:58:09,275 INFO L78 Accepts]: Start accepts. Automaton has 58990 states and 75662 transitions. Word has length 186 [2022-10-16 14:58:09,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:58:09,275 INFO L495 AbstractCegarLoop]: Abstraction has 58990 states and 75662 transitions. [2022-10-16 14:58:09,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 3.372549019607843) internal successors, (172), 52 states have internal predecessors, (172), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:09,276 INFO L276 IsEmpty]: Start isEmpty. Operand 58990 states and 75662 transitions. [2022-10-16 14:58:09,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-10-16 14:58:09,457 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:58:09,458 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 15, 14, 14, 14, 11, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 14:58:09,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-10-16 14:58:09,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:58:09,659 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:58:09,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:58:09,660 INFO L85 PathProgramCache]: Analyzing trace with hash -432709041, now seen corresponding path program 8 times [2022-10-16 14:58:09,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:58:09,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046982244] [2022-10-16 14:58:09,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:58:09,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:58:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:58:10,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1375 backedges. 20 proven. 512 refuted. 0 times theorem prover too weak. 843 trivial. 0 not checked. [2022-10-16 14:58:10,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:58:10,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046982244] [2022-10-16 14:58:10,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046982244] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:58:10,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570424883] [2022-10-16 14:58:10,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:58:10,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:58:10,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:58:10,429 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:58:10,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-10-16 14:58:10,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:58:10,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:58:10,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 14:58:10,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:58:10,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1375 backedges. 20 proven. 512 refuted. 0 times theorem prover too weak. 843 trivial. 0 not checked. [2022-10-16 14:58:10,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:58:11,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1375 backedges. 20 proven. 512 refuted. 0 times theorem prover too weak. 843 trivial. 0 not checked. [2022-10-16 14:58:11,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570424883] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:58:11,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:58:11,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2022-10-16 14:58:11,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555400667] [2022-10-16 14:58:11,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:58:11,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 14:58:11,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:58:11,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 14:58:11,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=1245, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 14:58:11,256 INFO L87 Difference]: Start difference. First operand 58990 states and 75662 transitions. Second operand has 40 states, 39 states have (on average 3.282051282051282) internal successors, (128), 40 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:27,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:58:27,359 INFO L93 Difference]: Finished difference Result 174844 states and 223177 transitions. [2022-10-16 14:58:27,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-10-16 14:58:27,359 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.282051282051282) internal successors, (128), 40 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2022-10-16 14:58:27,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:58:27,611 INFO L225 Difference]: With dead ends: 174844 [2022-10-16 14:58:27,611 INFO L226 Difference]: Without dead ends: 174843 [2022-10-16 14:58:27,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1084, Invalid=4172, Unknown=0, NotChecked=0, Total=5256 [2022-10-16 14:58:27,641 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 304 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:58:27,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 344 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:58:27,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174843 states. [2022-10-16 14:58:39,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174843 to 74774. [2022-10-16 14:58:39,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74774 states, 74765 states have (on average 1.2830602554671304) internal successors, (95928), 74770 states have internal predecessors, (95928), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:58:39,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74774 states to 74774 states and 95933 transitions. [2022-10-16 14:58:39,640 INFO L78 Accepts]: Start accepts. Automaton has 74774 states and 95933 transitions. Word has length 186 [2022-10-16 14:58:39,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:58:39,641 INFO L495 AbstractCegarLoop]: Abstraction has 74774 states and 95933 transitions. [2022-10-16 14:58:39,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.282051282051282) internal successors, (128), 40 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:39,641 INFO L276 IsEmpty]: Start isEmpty. Operand 74774 states and 95933 transitions. [2022-10-16 14:58:39,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-10-16 14:58:39,697 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:58:39,698 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 17, 16, 16, 16, 15, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:58:39,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-10-16 14:58:39,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-10-16 14:58:39,913 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:58:39,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:58:39,915 INFO L85 PathProgramCache]: Analyzing trace with hash -835906993, now seen corresponding path program 9 times [2022-10-16 14:58:39,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:58:39,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595354679] [2022-10-16 14:58:39,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:58:39,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:58:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:58:41,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 5 proven. 813 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-10-16 14:58:41,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:58:41,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595354679] [2022-10-16 14:58:41,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595354679] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:58:41,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399476380] [2022-10-16 14:58:41,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:58:41,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:58:41,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:58:41,205 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:58:41,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-10-16 14:58:41,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-10-16 14:58:41,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:58:41,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 14:58:41,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:58:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 7 proven. 809 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2022-10-16 14:58:42,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:58:43,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 7 proven. 809 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2022-10-16 14:58:43,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399476380] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:58:43,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:58:43,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 63 [2022-10-16 14:58:43,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607758521] [2022-10-16 14:58:43,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:58:43,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-10-16 14:58:43,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:58:43,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-10-16 14:58:43,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=918, Invalid=3114, Unknown=0, NotChecked=0, Total=4032 [2022-10-16 14:58:43,285 INFO L87 Difference]: Start difference. First operand 74774 states and 95933 transitions. Second operand has 64 states, 63 states have (on average 3.492063492063492) internal successors, (220), 64 states have internal predecessors, (220), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:59:09,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:59:09,792 INFO L93 Difference]: Finished difference Result 192176 states and 243629 transitions. [2022-10-16 14:59:09,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-10-16 14:59:09,792 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.492063492063492) internal successors, (220), 64 states have internal predecessors, (220), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2022-10-16 14:59:09,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:59:10,092 INFO L225 Difference]: With dead ends: 192176 [2022-10-16 14:59:10,092 INFO L226 Difference]: Without dead ends: 192175 [2022-10-16 14:59:10,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3367 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3080, Invalid=10726, Unknown=0, NotChecked=0, Total=13806 [2022-10-16 14:59:10,132 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 579 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:59:10,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 668 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:59:10,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192175 states. [2022-10-16 14:59:30,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192175 to 125488. [2022-10-16 14:59:30,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125488 states, 125479 states have (on average 1.2840315909435045) internal successors, (161119), 125484 states have internal predecessors, (161119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:59:31,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125488 states to 125488 states and 161124 transitions. [2022-10-16 14:59:31,681 INFO L78 Accepts]: Start accepts. Automaton has 125488 states and 161124 transitions. Word has length 200 [2022-10-16 14:59:31,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:59:31,682 INFO L495 AbstractCegarLoop]: Abstraction has 125488 states and 161124 transitions. [2022-10-16 14:59:31,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.492063492063492) internal successors, (220), 64 states have internal predecessors, (220), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:59:31,682 INFO L276 IsEmpty]: Start isEmpty. Operand 125488 states and 161124 transitions. [2022-10-16 14:59:31,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-10-16 14:59:31,741 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:59:31,741 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 17, 16, 16, 16, 13, 13, 12, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 14:59:31,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2022-10-16 14:59:31,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:59:31,942 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:59:31,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:59:31,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1669510530, now seen corresponding path program 11 times [2022-10-16 14:59:31,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:59:31,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115798444] [2022-10-16 14:59:31,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:59:31,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:59:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:59:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 20 proven. 724 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2022-10-16 14:59:33,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:59:33,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115798444] [2022-10-16 14:59:33,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115798444] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:59:33,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467174699] [2022-10-16 14:59:33,283 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:59:33,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:59:33,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:59:33,285 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:59:33,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-10-16 14:59:35,182 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-10-16 14:59:35,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:59:35,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 14:59:35,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:59:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 20 proven. 720 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-10-16 14:59:35,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:59:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 20 proven. 720 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-10-16 14:59:36,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467174699] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:59:36,109 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:59:36,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23, 23] total 47 [2022-10-16 14:59:36,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598443855] [2022-10-16 14:59:36,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:59:36,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 14:59:36,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:59:36,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 14:59:36,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1793, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 14:59:36,113 INFO L87 Difference]: Start difference. First operand 125488 states and 161124 transitions. Second operand has 48 states, 47 states have (on average 3.4893617021276597) internal successors, (164), 48 states have internal predecessors, (164), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:00:14,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:14,556 INFO L93 Difference]: Finished difference Result 236049 states and 300991 transitions. [2022-10-16 15:00:14,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-10-16 15:00:14,556 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.4893617021276597) internal successors, (164), 48 states have internal predecessors, (164), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 201 [2022-10-16 15:00:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:14,988 INFO L225 Difference]: With dead ends: 236049 [2022-10-16 15:00:14,988 INFO L226 Difference]: Without dead ends: 236048 [2022-10-16 15:00:15,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1881 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1630, Invalid=6026, Unknown=0, NotChecked=0, Total=7656 [2022-10-16 15:00:15,034 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 326 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:15,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 462 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:00:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236048 states.