/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/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:16:24,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:16:24,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:16:24,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:16:24,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:16:24,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:16:24,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:16:24,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:16:24,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:16:24,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:16:24,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:16:24,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:16:24,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:16:24,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:16:24,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:16:24,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:16:24,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:16:24,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:16:24,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:16:24,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:16:24,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:16:24,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:16:24,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:16:24,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:16:24,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:16:24,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:16:24,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:16:24,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:16:24,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:16:24,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:16:24,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:16:24,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:16:24,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:16:24,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:16:24,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:16:24,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:16:24,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:16:24,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:16:24,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:16:24,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:16:24,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:16:24,481 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 15:16:24,536 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:16:24,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:16:24,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:16:24,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:16:24,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:16:24,539 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:16:24,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:16:24,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:16:24,542 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:16:24,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:16:24,543 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:16:24,544 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:16:24,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:16:24,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:16:24,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:16:24,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:16:24,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:16:24,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:16:24,545 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:16:24,545 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:16:24,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:16:24,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:16:24,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:16:24,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:16:24,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:16:24,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:16:24,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:16:24,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:16:24,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:16:24,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:16:24,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:16:24,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:16:24,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:16:24,548 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:16:24,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:16:25,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:16:25,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:16:25,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:16:25,018 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:16:25,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2022-10-16 15:16:25,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f492854a/38b145f3113f462f84eb6853cea807e2/FLAGbb92c3b37 [2022-10-16 15:16:25,706 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:16:25,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2022-10-16 15:16:25,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f492854a/38b145f3113f462f84eb6853cea807e2/FLAGbb92c3b37 [2022-10-16 15:16:26,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f492854a/38b145f3113f462f84eb6853cea807e2 [2022-10-16 15:16:26,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:16:26,111 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:16:26,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:16:26,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:16:26,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:16:26,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a21e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26, skipping insertion in model container [2022-10-16 15:16:26,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:16:26,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:16:26,391 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/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c[8379,8392] [2022-10-16 15:16:26,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:16:26,404 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:16:26,458 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/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c[8379,8392] [2022-10-16 15:16:26,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:16:26,477 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:16:26,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26 WrapperNode [2022-10-16 15:16:26,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:16:26,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:16:26,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:16:26,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:16:26,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,573 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 292 [2022-10-16 15:16:26,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:16:26,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:16:26,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:16:26,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:16:26,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,634 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:16:26,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:16:26,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:16:26,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:16:26,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (1/1) ... [2022-10-16 15:16:26,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:16:26,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:16:26,695 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 15:16:26,721 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 15:16:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:16:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:16:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:16:26,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:16:26,879 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:16:26,882 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:16:27,691 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:16:27,714 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:16:27,715 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 15:16:27,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:16:27 BoogieIcfgContainer [2022-10-16 15:16:27,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:16:27,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:16:27,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:16:27,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:16:27,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:16:26" (1/3) ... [2022-10-16 15:16:27,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5603af6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:16:27, skipping insertion in model container [2022-10-16 15:16:27,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:16:26" (2/3) ... [2022-10-16 15:16:27,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5603af6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:16:27, skipping insertion in model container [2022-10-16 15:16:27,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:16:27" (3/3) ... [2022-10-16 15:16:27,749 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2022-10-16 15:16:27,781 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:16:27,782 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-16 15:16:27,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:16:27,897 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;@283e144, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:16:27,897 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-16 15:16:27,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 95 states have (on average 1.7578947368421052) internal successors, (167), 115 states have internal predecessors, (167), 0 states have call successors, (0), 0 states 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 15:16:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 15:16:27,933 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:27,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:27,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:27,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:27,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1138004434, now seen corresponding path program 1 times [2022-10-16 15:16:27,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:27,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008156613] [2022-10-16 15:16:27,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:27,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:28,210 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 15:16:28,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:28,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008156613] [2022-10-16 15:16:28,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008156613] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:28,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:28,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 15:16:28,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394686913] [2022-10-16 15:16:28,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:28,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 15:16:28,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:28,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 15:16:28,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 15:16:28,258 INFO L87 Difference]: Start difference. First operand has 116 states, 95 states have (on average 1.7578947368421052) internal successors, (167), 115 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 15:16:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:28,293 INFO L93 Difference]: Finished difference Result 198 states and 279 transitions. [2022-10-16 15:16:28,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 15:16:28,296 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 15:16:28,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:28,312 INFO L225 Difference]: With dead ends: 198 [2022-10-16 15:16:28,312 INFO L226 Difference]: Without dead ends: 109 [2022-10-16 15:16:28,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 15:16:28,321 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:28,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:16:28,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-10-16 15:16:28,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-10-16 15:16:28,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 91 states have (on average 1.7252747252747254) internal successors, (157), 108 states have internal predecessors, (157), 0 states have call successors, (0), 0 states 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 15:16:28,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2022-10-16 15:16:28,376 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 10 [2022-10-16 15:16:28,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:28,376 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2022-10-16 15:16:28,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 15:16:28,377 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2022-10-16 15:16:28,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 15:16:28,378 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:28,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:28,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 15:16:28,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:28,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:28,380 INFO L85 PathProgramCache]: Analyzing trace with hash -956206405, now seen corresponding path program 1 times [2022-10-16 15:16:28,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:28,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830902906] [2022-10-16 15:16:28,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:28,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:28,758 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 15:16:28,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:28,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830902906] [2022-10-16 15:16:28,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830902906] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:28,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:28,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 15:16:28,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489531987] [2022-10-16 15:16:28,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:28,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:16:28,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:28,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:16:28,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:16:28,766 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 15:16:28,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:28,904 INFO L93 Difference]: Finished difference Result 193 states and 266 transitions. [2022-10-16 15:16:28,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:16:28,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2022-10-16 15:16:28,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:28,907 INFO L225 Difference]: With dead ends: 193 [2022-10-16 15:16:28,907 INFO L226 Difference]: Without dead ends: 109 [2022-10-16 15:16:28,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 15:16:28,910 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 3 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:28,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 594 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:16:28,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-10-16 15:16:28,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-10-16 15:16:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 91 states have (on average 1.4725274725274726) internal successors, (134), 108 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 15:16:28,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2022-10-16 15:16:28,923 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 25 [2022-10-16 15:16:28,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:28,924 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2022-10-16 15:16:28,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 15:16:28,924 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2022-10-16 15:16:28,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 15:16:28,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:28,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:28,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 15:16:28,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:28,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:28,928 INFO L85 PathProgramCache]: Analyzing trace with hash 165262742, now seen corresponding path program 1 times [2022-10-16 15:16:28,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:28,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175508360] [2022-10-16 15:16:28,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:28,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:29,050 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 15:16:29,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:29,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175508360] [2022-10-16 15:16:29,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175508360] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:29,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:29,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:16:29,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225181758] [2022-10-16 15:16:29,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:29,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 15:16:29,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:29,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 15:16:29,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 15:16:29,056 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:29,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:29,107 INFO L93 Difference]: Finished difference Result 263 states and 334 transitions. [2022-10-16 15:16:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 15:16:29,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-10-16 15:16:29,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:29,114 INFO L225 Difference]: With dead ends: 263 [2022-10-16 15:16:29,115 INFO L226 Difference]: Without dead ends: 183 [2022-10-16 15:16:29,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 15:16:29,119 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 91 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:29,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 317 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:16:29,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-10-16 15:16:29,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 165. [2022-10-16 15:16:29,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 147 states have (on average 1.5510204081632653) internal successors, (228), 164 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:29,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 228 transitions. [2022-10-16 15:16:29,139 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 228 transitions. Word has length 47 [2022-10-16 15:16:29,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:29,140 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 228 transitions. [2022-10-16 15:16:29,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:29,141 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 228 transitions. [2022-10-16 15:16:29,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 15:16:29,142 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:29,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:29,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 15:16:29,143 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:29,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:29,144 INFO L85 PathProgramCache]: Analyzing trace with hash 761221322, now seen corresponding path program 1 times [2022-10-16 15:16:29,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:29,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761286438] [2022-10-16 15:16:29,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:29,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:29,289 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 15:16:29,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:29,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761286438] [2022-10-16 15:16:29,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761286438] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:29,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:29,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:16:29,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023726220] [2022-10-16 15:16:29,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:29,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 15:16:29,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:29,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 15:16:29,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 15:16:29,315 INFO L87 Difference]: Start difference. First operand 165 states and 228 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:29,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:29,347 INFO L93 Difference]: Finished difference Result 425 states and 606 transitions. [2022-10-16 15:16:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 15:16:29,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-10-16 15:16:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:29,350 INFO L225 Difference]: With dead ends: 425 [2022-10-16 15:16:29,350 INFO L226 Difference]: Without dead ends: 289 [2022-10-16 15:16:29,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 15:16:29,353 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 87 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:29,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 316 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:16:29,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-10-16 15:16:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 271. [2022-10-16 15:16:29,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 253 states have (on average 1.6007905138339922) internal successors, (405), 270 states have internal predecessors, (405), 0 states have call successors, (0), 0 states 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 15:16:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 405 transitions. [2022-10-16 15:16:29,387 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 405 transitions. Word has length 47 [2022-10-16 15:16:29,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:29,387 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 405 transitions. [2022-10-16 15:16:29,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:29,388 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 405 transitions. [2022-10-16 15:16:29,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 15:16:29,389 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:29,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:29,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 15:16:29,390 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:29,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:29,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1169860094, now seen corresponding path program 1 times [2022-10-16 15:16:29,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:29,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139186946] [2022-10-16 15:16:29,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:29,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:29,489 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 15:16:29,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:29,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139186946] [2022-10-16 15:16:29,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139186946] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:29,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:29,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:16:29,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754388355] [2022-10-16 15:16:29,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:29,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 15:16:29,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:29,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 15:16:29,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 15:16:29,493 INFO L87 Difference]: Start difference. First operand 271 states and 405 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:29,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:29,539 INFO L93 Difference]: Finished difference Result 731 states and 1117 transitions. [2022-10-16 15:16:29,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 15:16:29,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-10-16 15:16:29,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:29,546 INFO L225 Difference]: With dead ends: 731 [2022-10-16 15:16:29,546 INFO L226 Difference]: Without dead ends: 489 [2022-10-16 15:16:29,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 15:16:29,551 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 83 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:29,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 315 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:16:29,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-10-16 15:16:29,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 471. [2022-10-16 15:16:29,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 453 states have (on average 1.6269315673289184) internal successors, (737), 470 states have internal predecessors, (737), 0 states have call successors, (0), 0 states 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 15:16:29,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 737 transitions. [2022-10-16 15:16:29,636 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 737 transitions. Word has length 47 [2022-10-16 15:16:29,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:29,637 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 737 transitions. [2022-10-16 15:16:29,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 737 transitions. [2022-10-16 15:16:29,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 15:16:29,638 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:29,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:29,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 15:16:29,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:29,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:29,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1188547700, now seen corresponding path program 1 times [2022-10-16 15:16:29,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:29,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866087061] [2022-10-16 15:16:29,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:29,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:29,745 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 15:16:29,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:29,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866087061] [2022-10-16 15:16:29,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866087061] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:29,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:29,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:16:29,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496254751] [2022-10-16 15:16:29,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:29,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:16:29,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:29,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:16:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:16:29,748 INFO L87 Difference]: Start difference. First operand 471 states and 737 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:29,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:29,977 INFO L93 Difference]: Finished difference Result 1352 states and 2153 transitions. [2022-10-16 15:16:29,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:16:29,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-10-16 15:16:29,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:29,987 INFO L225 Difference]: With dead ends: 1352 [2022-10-16 15:16:29,987 INFO L226 Difference]: Without dead ends: 1349 [2022-10-16 15:16:29,988 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 15:16:29,990 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 309 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:29,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 269 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:16:29,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2022-10-16 15:16:30,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 895. [2022-10-16 15:16:30,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 877 states have (on average 1.6202964652223488) internal successors, (1421), 894 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states 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 15:16:30,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1421 transitions. [2022-10-16 15:16:30,055 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1421 transitions. Word has length 47 [2022-10-16 15:16:30,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:30,056 INFO L495 AbstractCegarLoop]: Abstraction has 895 states and 1421 transitions. [2022-10-16 15:16:30,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:30,056 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1421 transitions. [2022-10-16 15:16:30,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 15:16:30,058 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:30,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:30,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 15:16:30,058 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:30,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:30,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1809726635, now seen corresponding path program 1 times [2022-10-16 15:16:30,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:30,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471637625] [2022-10-16 15:16:30,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:30,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:30,156 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 15:16:30,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:30,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471637625] [2022-10-16 15:16:30,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471637625] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:30,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:30,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:16:30,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257529442] [2022-10-16 15:16:30,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:30,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:16:30,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:30,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:16:30,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:16:30,175 INFO L87 Difference]: Start difference. First operand 895 states and 1421 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:30,339 INFO L93 Difference]: Finished difference Result 1334 states and 2129 transitions. [2022-10-16 15:16:30,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:16:30,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-16 15:16:30,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:30,347 INFO L225 Difference]: With dead ends: 1334 [2022-10-16 15:16:30,348 INFO L226 Difference]: Without dead ends: 1331 [2022-10-16 15:16:30,349 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 15:16:30,350 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 302 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:30,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 160 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:16:30,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2022-10-16 15:16:30,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1319. [2022-10-16 15:16:30,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1301 states have (on average 1.5995388162951576) internal successors, (2081), 1318 states have internal predecessors, (2081), 0 states have call successors, (0), 0 states 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 15:16:30,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2081 transitions. [2022-10-16 15:16:30,433 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2081 transitions. Word has length 48 [2022-10-16 15:16:30,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:30,433 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 2081 transitions. [2022-10-16 15:16:30,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:30,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2081 transitions. [2022-10-16 15:16:30,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 15:16:30,435 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:30,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:30,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 15:16:30,436 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:30,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:30,436 INFO L85 PathProgramCache]: Analyzing trace with hash -266950506, now seen corresponding path program 1 times [2022-10-16 15:16:30,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:30,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923110724] [2022-10-16 15:16:30,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:30,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:30,534 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 15:16:30,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:30,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923110724] [2022-10-16 15:16:30,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923110724] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:30,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:30,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 15:16:30,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670527010] [2022-10-16 15:16:30,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:30,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:16:30,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:30,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:16:30,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:16:30,537 INFO L87 Difference]: Start difference. First operand 1319 states and 2081 transitions. Second operand has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 15:16:30,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:30,894 INFO L93 Difference]: Finished difference Result 2203 states and 3425 transitions. [2022-10-16 15:16:30,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 15:16:30,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2022-10-16 15:16:30,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:30,907 INFO L225 Difference]: With dead ends: 2203 [2022-10-16 15:16:30,908 INFO L226 Difference]: Without dead ends: 2200 [2022-10-16 15:16:30,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:16:30,910 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 584 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:30,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 399 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:16:30,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2022-10-16 15:16:31,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 1743. [2022-10-16 15:16:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1725 states have (on average 1.575072463768116) internal successors, (2717), 1742 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states 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 15:16:31,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2717 transitions. [2022-10-16 15:16:31,040 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2717 transitions. Word has length 49 [2022-10-16 15:16:31,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:31,040 INFO L495 AbstractCegarLoop]: Abstraction has 1743 states and 2717 transitions. [2022-10-16 15:16:31,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 15:16:31,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2717 transitions. [2022-10-16 15:16:31,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 15:16:31,042 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:31,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:31,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 15:16:31,042 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:31,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:31,043 INFO L85 PathProgramCache]: Analyzing trace with hash 314469239, now seen corresponding path program 1 times [2022-10-16 15:16:31,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:31,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980080134] [2022-10-16 15:16:31,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:31,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:31,159 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 15:16:31,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:31,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980080134] [2022-10-16 15:16:31,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980080134] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:31,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:31,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 15:16:31,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769486737] [2022-10-16 15:16:31,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:31,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:16:31,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:31,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:16:31,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:16:31,162 INFO L87 Difference]: Start difference. First operand 1743 states and 2717 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states 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 15:16:31,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:31,457 INFO L93 Difference]: Finished difference Result 2191 states and 3401 transitions. [2022-10-16 15:16:31,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 15:16:31,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-10-16 15:16:31,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:31,470 INFO L225 Difference]: With dead ends: 2191 [2022-10-16 15:16:31,470 INFO L226 Difference]: Without dead ends: 2188 [2022-10-16 15:16:31,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:16:31,472 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 515 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:31,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 272 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:16:31,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2022-10-16 15:16:31,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2167. [2022-10-16 15:16:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2167 states, 2149 states have (on average 1.5490926012098651) internal successors, (3329), 2166 states have internal predecessors, (3329), 0 states have call successors, (0), 0 states 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 15:16:31,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2167 states to 2167 states and 3329 transitions. [2022-10-16 15:16:31,643 INFO L78 Accepts]: Start accepts. Automaton has 2167 states and 3329 transitions. Word has length 50 [2022-10-16 15:16:31,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:31,643 INFO L495 AbstractCegarLoop]: Abstraction has 2167 states and 3329 transitions. [2022-10-16 15:16:31,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states 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 15:16:31,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2167 states and 3329 transitions. [2022-10-16 15:16:31,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 15:16:31,644 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:31,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:31,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 15:16:31,645 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:31,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:31,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1893033926, now seen corresponding path program 1 times [2022-10-16 15:16:31,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:31,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425470580] [2022-10-16 15:16:31,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:31,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:31,705 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 15:16:31,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:31,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425470580] [2022-10-16 15:16:31,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425470580] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:31,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:31,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:16:31,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990288567] [2022-10-16 15:16:31,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:31,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 15:16:31,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:31,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 15:16:31,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 15:16:31,708 INFO L87 Difference]: Start difference. First operand 2167 states and 3329 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:32,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:32,001 INFO L93 Difference]: Finished difference Result 6123 states and 9449 transitions. [2022-10-16 15:16:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 15:16:32,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-16 15:16:32,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:32,024 INFO L225 Difference]: With dead ends: 6123 [2022-10-16 15:16:32,024 INFO L226 Difference]: Without dead ends: 3985 [2022-10-16 15:16:32,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 15:16:32,029 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 93 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:32,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 323 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:16:32,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3985 states. [2022-10-16 15:16:32,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3985 to 3967. [2022-10-16 15:16:32,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3967 states, 3949 states have (on average 1.546973917447455) internal successors, (6109), 3966 states have internal predecessors, (6109), 0 states have call successors, (0), 0 states 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 15:16:32,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 6109 transitions. [2022-10-16 15:16:32,345 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 6109 transitions. Word has length 51 [2022-10-16 15:16:32,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:32,346 INFO L495 AbstractCegarLoop]: Abstraction has 3967 states and 6109 transitions. [2022-10-16 15:16:32,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 6109 transitions. [2022-10-16 15:16:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 15:16:32,347 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:32,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:32,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 15:16:32,348 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:32,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:32,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1158612152, now seen corresponding path program 1 times [2022-10-16 15:16:32,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:32,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891450851] [2022-10-16 15:16:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:32,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:32,473 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 15:16:32,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:32,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891450851] [2022-10-16 15:16:32,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891450851] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:32,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:32,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 15:16:32,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427248856] [2022-10-16 15:16:32,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:32,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:16:32,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:32,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:16:32,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 15:16:32,476 INFO L87 Difference]: Start difference. First operand 3967 states and 6109 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:33,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:33,564 INFO L93 Difference]: Finished difference Result 15015 states and 23229 transitions. [2022-10-16 15:16:33,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 15:16:33,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-16 15:16:33,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:33,622 INFO L225 Difference]: With dead ends: 15015 [2022-10-16 15:16:33,622 INFO L226 Difference]: Without dead ends: 11077 [2022-10-16 15:16:33,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-10-16 15:16:33,632 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 1070 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:33,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 632 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 15:16:33,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11077 states. [2022-10-16 15:16:34,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11077 to 7887. [2022-10-16 15:16:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7887 states, 7869 states have (on average 1.4981573262168002) internal successors, (11789), 7886 states have internal predecessors, (11789), 0 states have call successors, (0), 0 states 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 15:16:34,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7887 states to 7887 states and 11789 transitions. [2022-10-16 15:16:34,311 INFO L78 Accepts]: Start accepts. Automaton has 7887 states and 11789 transitions. Word has length 51 [2022-10-16 15:16:34,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:34,311 INFO L495 AbstractCegarLoop]: Abstraction has 7887 states and 11789 transitions. [2022-10-16 15:16:34,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:34,312 INFO L276 IsEmpty]: Start isEmpty. Operand 7887 states and 11789 transitions. [2022-10-16 15:16:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 15:16:34,313 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:34,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:34,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 15:16:34,313 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:34,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:34,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1557238681, now seen corresponding path program 1 times [2022-10-16 15:16:34,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:34,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127742127] [2022-10-16 15:16:34,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:34,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:34,433 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 15:16:34,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:34,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127742127] [2022-10-16 15:16:34,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127742127] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:34,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:34,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 15:16:34,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585665020] [2022-10-16 15:16:34,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:34,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:16:34,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:34,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:16:34,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 15:16:34,436 INFO L87 Difference]: Start difference. First operand 7887 states and 11789 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:35,358 INFO L93 Difference]: Finished difference Result 11068 states and 16749 transitions. [2022-10-16 15:16:35,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 15:16:35,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-10-16 15:16:35,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:35,408 INFO L225 Difference]: With dead ends: 11068 [2022-10-16 15:16:35,408 INFO L226 Difference]: Without dead ends: 11065 [2022-10-16 15:16:35,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-16 15:16:35,415 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 1116 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:35,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 416 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 15:16:35,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11065 states. [2022-10-16 15:16:36,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11065 to 11023. [2022-10-16 15:16:36,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11023 states, 11005 states have (on average 1.4783280327124035) internal successors, (16269), 11022 states have internal predecessors, (16269), 0 states have call successors, (0), 0 states 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 15:16:36,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11023 states to 11023 states and 16269 transitions. [2022-10-16 15:16:36,157 INFO L78 Accepts]: Start accepts. Automaton has 11023 states and 16269 transitions. Word has length 52 [2022-10-16 15:16:36,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:36,157 INFO L495 AbstractCegarLoop]: Abstraction has 11023 states and 16269 transitions. [2022-10-16 15:16:36,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:36,158 INFO L276 IsEmpty]: Start isEmpty. Operand 11023 states and 16269 transitions. [2022-10-16 15:16:36,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-16 15:16:36,159 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:36,160 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:36,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 15:16:36,160 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:36,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:36,161 INFO L85 PathProgramCache]: Analyzing trace with hash -583317938, now seen corresponding path program 1 times [2022-10-16 15:16:36,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:36,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435347078] [2022-10-16 15:16:36,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:36,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:36,244 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 15:16:36,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:36,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435347078] [2022-10-16 15:16:36,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435347078] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:36,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:36,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:16:36,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218351605] [2022-10-16 15:16:36,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:36,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 15:16:36,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:36,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 15:16:36,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 15:16:36,247 INFO L87 Difference]: Start difference. First operand 11023 states and 16269 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 15:16:37,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:37,195 INFO L93 Difference]: Finished difference Result 25669 states and 37699 transitions. [2022-10-16 15:16:37,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 15:16:37,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-10-16 15:16:37,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:37,233 INFO L225 Difference]: With dead ends: 25669 [2022-10-16 15:16:37,233 INFO L226 Difference]: Without dead ends: 14675 [2022-10-16 15:16:37,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 15:16:37,250 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 55 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:37,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 231 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:16:37,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14675 states. [2022-10-16 15:16:38,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14675 to 14489. [2022-10-16 15:16:38,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14489 states, 14471 states have (on average 1.4624421256305715) internal successors, (21163), 14488 states have internal predecessors, (21163), 0 states have call successors, (0), 0 states 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 15:16:38,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14489 states to 14489 states and 21163 transitions. [2022-10-16 15:16:38,110 INFO L78 Accepts]: Start accepts. Automaton has 14489 states and 21163 transitions. Word has length 79 [2022-10-16 15:16:38,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:38,111 INFO L495 AbstractCegarLoop]: Abstraction has 14489 states and 21163 transitions. [2022-10-16 15:16:38,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 15:16:38,112 INFO L276 IsEmpty]: Start isEmpty. Operand 14489 states and 21163 transitions. [2022-10-16 15:16:38,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-16 15:16:38,113 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:38,114 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:38,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 15:16:38,114 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:38,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:38,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1014242748, now seen corresponding path program 1 times [2022-10-16 15:16:38,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:38,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164803751] [2022-10-16 15:16:38,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:38,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:38,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 15:16:38,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:38,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164803751] [2022-10-16 15:16:38,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164803751] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:38,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:38,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 15:16:38,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310021698] [2022-10-16 15:16:38,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:38,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:16:38,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:38,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:16:38,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 15:16:38,399 INFO L87 Difference]: Start difference. First operand 14489 states and 21163 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:39,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:39,519 INFO L93 Difference]: Finished difference Result 28959 states and 42295 transitions. [2022-10-16 15:16:39,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 15:16:39,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-10-16 15:16:39,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:39,558 INFO L225 Difference]: With dead ends: 28959 [2022-10-16 15:16:39,558 INFO L226 Difference]: Without dead ends: 14501 [2022-10-16 15:16:39,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 15:16:39,577 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 388 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:39,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 305 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:16:39,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14501 states. [2022-10-16 15:16:40,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14501 to 14489. [2022-10-16 15:16:40,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14489 states, 14471 states have (on average 1.4547025084652063) internal successors, (21051), 14488 states have internal predecessors, (21051), 0 states have call successors, (0), 0 states 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 15:16:40,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14489 states to 14489 states and 21051 transitions. [2022-10-16 15:16:40,501 INFO L78 Accepts]: Start accepts. Automaton has 14489 states and 21051 transitions. Word has length 85 [2022-10-16 15:16:40,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:40,501 INFO L495 AbstractCegarLoop]: Abstraction has 14489 states and 21051 transitions. [2022-10-16 15:16:40,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 14489 states and 21051 transitions. [2022-10-16 15:16:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-16 15:16:40,503 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:40,503 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:40,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 15:16:40,504 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:40,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:40,505 INFO L85 PathProgramCache]: Analyzing trace with hash 989751494, now seen corresponding path program 1 times [2022-10-16 15:16:40,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:40,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642074239] [2022-10-16 15:16:40,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:40,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 15:16:40,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:40,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642074239] [2022-10-16 15:16:40,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642074239] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:40,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:40,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:16:40,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519169622] [2022-10-16 15:16:40,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:40,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:16:40,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:40,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:16:40,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:16:40,624 INFO L87 Difference]: Start difference. First operand 14489 states and 21051 transitions. Second operand has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 15:16:41,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:41,463 INFO L93 Difference]: Finished difference Result 19217 states and 28107 transitions. [2022-10-16 15:16:41,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:16:41,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 86 [2022-10-16 15:16:41,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:41,498 INFO L225 Difference]: With dead ends: 19217 [2022-10-16 15:16:41,499 INFO L226 Difference]: Without dead ends: 19214 [2022-10-16 15:16:41,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:16:41,504 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 145 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:41,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 309 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:16:41,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19214 states. [2022-10-16 15:16:42,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19214 to 15897. [2022-10-16 15:16:42,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15897 states, 15879 states have (on average 1.4554442974998425) internal successors, (23111), 15896 states have internal predecessors, (23111), 0 states have call successors, (0), 0 states 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 15:16:42,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15897 states to 15897 states and 23111 transitions. [2022-10-16 15:16:42,394 INFO L78 Accepts]: Start accepts. Automaton has 15897 states and 23111 transitions. Word has length 86 [2022-10-16 15:16:42,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:42,395 INFO L495 AbstractCegarLoop]: Abstraction has 15897 states and 23111 transitions. [2022-10-16 15:16:42,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 15:16:42,395 INFO L276 IsEmpty]: Start isEmpty. Operand 15897 states and 23111 transitions. [2022-10-16 15:16:42,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 15:16:42,397 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:42,397 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:42,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 15:16:42,398 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:42,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:42,398 INFO L85 PathProgramCache]: Analyzing trace with hash -2063267346, now seen corresponding path program 1 times [2022-10-16 15:16:42,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:42,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618436952] [2022-10-16 15:16:42,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:42,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 15:16:42,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:42,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618436952] [2022-10-16 15:16:42,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618436952] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:42,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:42,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:16:42,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961940124] [2022-10-16 15:16:42,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:42,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:16:42,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:42,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:16:42,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:16:42,582 INFO L87 Difference]: Start difference. First operand 15897 states and 23111 transitions. Second operand has 4 states, 3 states have (on average 29.0) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 15:16:43,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:43,467 INFO L93 Difference]: Finished difference Result 21572 states and 31467 transitions. [2022-10-16 15:16:43,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:16:43,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.0) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-10-16 15:16:43,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:43,516 INFO L225 Difference]: With dead ends: 21572 [2022-10-16 15:16:43,516 INFO L226 Difference]: Without dead ends: 21569 [2022-10-16 15:16:43,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:16:43,526 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 145 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:43,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 310 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:16:43,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21569 states. [2022-10-16 15:16:44,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21569 to 21545. [2022-10-16 15:16:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21545 states, 21527 states have (on average 1.4550564407488271) internal successors, (31323), 21544 states have internal predecessors, (31323), 0 states have call successors, (0), 0 states 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 15:16:44,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21545 states to 21545 states and 31323 transitions. [2022-10-16 15:16:44,858 INFO L78 Accepts]: Start accepts. Automaton has 21545 states and 31323 transitions. Word has length 88 [2022-10-16 15:16:44,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:44,858 INFO L495 AbstractCegarLoop]: Abstraction has 21545 states and 31323 transitions. [2022-10-16 15:16:44,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.0) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 15:16:44,859 INFO L276 IsEmpty]: Start isEmpty. Operand 21545 states and 31323 transitions. [2022-10-16 15:16:44,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 15:16:44,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:44,861 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:44,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 15:16:44,861 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:44,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:44,862 INFO L85 PathProgramCache]: Analyzing trace with hash 956660808, now seen corresponding path program 1 times [2022-10-16 15:16:44,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:44,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820376944] [2022-10-16 15:16:44,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:44,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:45,009 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 15:16:45,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:45,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820376944] [2022-10-16 15:16:45,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820376944] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:45,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:45,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 15:16:45,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078828829] [2022-10-16 15:16:45,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:45,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:16:45,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:45,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:16:45,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:16:45,013 INFO L87 Difference]: Start difference. First operand 21545 states and 31323 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 15:16:46,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:46,233 INFO L93 Difference]: Finished difference Result 21569 states and 31323 transitions. [2022-10-16 15:16:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 15:16:46,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-10-16 15:16:46,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:46,267 INFO L225 Difference]: With dead ends: 21569 [2022-10-16 15:16:46,267 INFO L226 Difference]: Without dead ends: 21566 [2022-10-16 15:16:46,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 15:16:46,276 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 341 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:46,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 382 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:16:46,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21566 states. [2022-10-16 15:16:47,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21566 to 19345. [2022-10-16 15:16:47,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19345 states, 19327 states have (on average 1.462565323123092) internal successors, (28267), 19344 states have internal predecessors, (28267), 0 states have call successors, (0), 0 states 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 15:16:47,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19345 states to 19345 states and 28267 transitions. [2022-10-16 15:16:47,324 INFO L78 Accepts]: Start accepts. Automaton has 19345 states and 28267 transitions. Word has length 88 [2022-10-16 15:16:47,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:47,324 INFO L495 AbstractCegarLoop]: Abstraction has 19345 states and 28267 transitions. [2022-10-16 15:16:47,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 15:16:47,325 INFO L276 IsEmpty]: Start isEmpty. Operand 19345 states and 28267 transitions. [2022-10-16 15:16:47,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 15:16:47,326 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:47,326 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:47,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 15:16:47,327 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:47,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:47,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1963423848, now seen corresponding path program 1 times [2022-10-16 15:16:47,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:47,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597684412] [2022-10-16 15:16:47,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:47,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:47,566 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 15:16:47,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:47,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597684412] [2022-10-16 15:16:47,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597684412] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:47,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:47,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 15:16:47,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369174690] [2022-10-16 15:16:47,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:47,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:16:47,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:47,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:16:47,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:16:47,569 INFO L87 Difference]: Start difference. First operand 19345 states and 28267 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 15:16:48,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:48,930 INFO L93 Difference]: Finished difference Result 24868 states and 35935 transitions. [2022-10-16 15:16:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:16:48,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-10-16 15:16:48,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:48,960 INFO L225 Difference]: With dead ends: 24868 [2022-10-16 15:16:48,960 INFO L226 Difference]: Without dead ends: 24865 [2022-10-16 15:16:48,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 15:16:48,969 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 342 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:48,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 399 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 15:16:48,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24865 states. [2022-10-16 15:16:50,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24865 to 24841. [2022-10-16 15:16:50,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24841 states, 24823 states have (on average 1.4399145953349717) internal successors, (35743), 24840 states have internal predecessors, (35743), 0 states have call successors, (0), 0 states 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 15:16:50,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24841 states to 24841 states and 35743 transitions. [2022-10-16 15:16:50,195 INFO L78 Accepts]: Start accepts. Automaton has 24841 states and 35743 transitions. Word has length 88 [2022-10-16 15:16:50,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:50,195 INFO L495 AbstractCegarLoop]: Abstraction has 24841 states and 35743 transitions. [2022-10-16 15:16:50,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 15:16:50,196 INFO L276 IsEmpty]: Start isEmpty. Operand 24841 states and 35743 transitions. [2022-10-16 15:16:50,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 15:16:50,198 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:50,199 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:50,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 15:16:50,199 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:50,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:50,200 INFO L85 PathProgramCache]: Analyzing trace with hash 463222043, now seen corresponding path program 1 times [2022-10-16 15:16:50,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:50,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425779346] [2022-10-16 15:16:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:50,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 15:16:50,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:50,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425779346] [2022-10-16 15:16:50,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425779346] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:50,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:50,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:16:50,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864359908] [2022-10-16 15:16:50,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:50,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:16:50,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:50,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:16:50,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:16:50,316 INFO L87 Difference]: Start difference. First operand 24841 states and 35743 transitions. Second operand has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:51,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:51,348 INFO L93 Difference]: Finished difference Result 24853 states and 35743 transitions. [2022-10-16 15:16:51,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:16:51,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-10-16 15:16:51,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:51,387 INFO L225 Difference]: With dead ends: 24853 [2022-10-16 15:16:51,387 INFO L226 Difference]: Without dead ends: 24850 [2022-10-16 15:16:51,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:16:51,399 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 147 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:51,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 242 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:16:51,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24850 states. [2022-10-16 15:16:52,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24850 to 24838. [2022-10-16 15:16:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24838 states, 24823 states have (on average 1.428312452161302) internal successors, (35455), 24837 states have internal predecessors, (35455), 0 states have call successors, (0), 0 states 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 15:16:52,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24838 states to 24838 states and 35455 transitions. [2022-10-16 15:16:52,966 INFO L78 Accepts]: Start accepts. Automaton has 24838 states and 35455 transitions. Word has length 89 [2022-10-16 15:16:52,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:52,967 INFO L495 AbstractCegarLoop]: Abstraction has 24838 states and 35455 transitions. [2022-10-16 15:16:52,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:52,967 INFO L276 IsEmpty]: Start isEmpty. Operand 24838 states and 35455 transitions. [2022-10-16 15:16:52,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 15:16:52,969 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:52,969 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:52,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 15:16:52,970 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:52,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:52,970 INFO L85 PathProgramCache]: Analyzing trace with hash 736597477, now seen corresponding path program 1 times [2022-10-16 15:16:52,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:52,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325862760] [2022-10-16 15:16:52,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:52,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:53,133 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 15:16:53,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:53,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325862760] [2022-10-16 15:16:53,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325862760] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:53,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:53,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 15:16:53,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443933668] [2022-10-16 15:16:53,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:53,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:16:53,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:53,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:16:53,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:16:53,136 INFO L87 Difference]: Start difference. First operand 24838 states and 35455 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 15:16:54,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:54,889 INFO L93 Difference]: Finished difference Result 34276 states and 49567 transitions. [2022-10-16 15:16:54,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:16:54,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-10-16 15:16:54,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:54,951 INFO L225 Difference]: With dead ends: 34276 [2022-10-16 15:16:54,952 INFO L226 Difference]: Without dead ends: 34273 [2022-10-16 15:16:54,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 15:16:54,966 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 356 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:54,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 303 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:16:54,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34273 states. [2022-10-16 15:16:56,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34273 to 31894. [2022-10-16 15:16:56,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31894 states, 31879 states have (on average 1.429875466608112) internal successors, (45583), 31893 states have internal predecessors, (45583), 0 states have call successors, (0), 0 states 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 15:16:56,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31894 states to 31894 states and 45583 transitions. [2022-10-16 15:16:56,407 INFO L78 Accepts]: Start accepts. Automaton has 31894 states and 45583 transitions. Word has length 89 [2022-10-16 15:16:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:56,408 INFO L495 AbstractCegarLoop]: Abstraction has 31894 states and 45583 transitions. [2022-10-16 15:16:56,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 15:16:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 31894 states and 45583 transitions. [2022-10-16 15:16:56,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 15:16:56,411 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:56,411 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:56,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 15:16:56,412 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:56,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:56,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1474981776, now seen corresponding path program 1 times [2022-10-16 15:16:56,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:56,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913585392] [2022-10-16 15:16:56,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:56,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:16:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 15:16:56,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:16:56,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913585392] [2022-10-16 15:16:56,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913585392] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:16:56,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:16:56,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 15:16:56,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636801423] [2022-10-16 15:16:56,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:16:56,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:16:56,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:16:56,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:16:56,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:16:56,555 INFO L87 Difference]: Start difference. First operand 31894 states and 45583 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:58,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:16:58,202 INFO L93 Difference]: Finished difference Result 34273 states and 49039 transitions. [2022-10-16 15:16:58,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:16:58,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-10-16 15:16:58,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:16:58,246 INFO L225 Difference]: With dead ends: 34273 [2022-10-16 15:16:58,246 INFO L226 Difference]: Without dead ends: 34270 [2022-10-16 15:16:58,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 15:16:58,258 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 330 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:16:58,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 395 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:16:58,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34270 states. [2022-10-16 15:16:59,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34270 to 34246. [2022-10-16 15:16:59,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34246 states, 34231 states have (on average 1.428383628874412) internal successors, (48895), 34245 states have internal predecessors, (48895), 0 states have call successors, (0), 0 states 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 15:16:59,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34246 states to 34246 states and 48895 transitions. [2022-10-16 15:16:59,938 INFO L78 Accepts]: Start accepts. Automaton has 34246 states and 48895 transitions. Word has length 90 [2022-10-16 15:16:59,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:16:59,939 INFO L495 AbstractCegarLoop]: Abstraction has 34246 states and 48895 transitions. [2022-10-16 15:16:59,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:16:59,939 INFO L276 IsEmpty]: Start isEmpty. Operand 34246 states and 48895 transitions. [2022-10-16 15:16:59,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 15:16:59,941 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:16:59,941 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:16:59,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 15:16:59,942 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:16:59,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:16:59,942 INFO L85 PathProgramCache]: Analyzing trace with hash -881736552, now seen corresponding path program 1 times [2022-10-16 15:16:59,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:16:59,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736666207] [2022-10-16 15:16:59,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:16:59,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:16:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:17:00,055 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 15:17:00,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:17:00,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736666207] [2022-10-16 15:17:00,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736666207] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:17:00,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:17:00,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 15:17:00,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275475945] [2022-10-16 15:17:00,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:17:00,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 15:17:00,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:17:00,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 15:17:00,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:17:00,057 INFO L87 Difference]: Start difference. First operand 34246 states and 48895 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:17:02,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:17:02,078 INFO L93 Difference]: Finished difference Result 38974 states and 56095 transitions. [2022-10-16 15:17:02,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 15:17:02,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-10-16 15:17:02,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:17:02,152 INFO L225 Difference]: With dead ends: 38974 [2022-10-16 15:17:02,152 INFO L226 Difference]: Without dead ends: 38971 [2022-10-16 15:17:02,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 15:17:02,165 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 183 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:17:02,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 486 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:17:02,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38971 states. [2022-10-16 15:17:03,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38971 to 34246. [2022-10-16 15:17:03,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34246 states, 34231 states have (on average 1.415763489234904) internal successors, (48463), 34245 states have internal predecessors, (48463), 0 states have call successors, (0), 0 states 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 15:17:03,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34246 states to 34246 states and 48463 transitions. [2022-10-16 15:17:03,812 INFO L78 Accepts]: Start accepts. Automaton has 34246 states and 48463 transitions. Word has length 90 [2022-10-16 15:17:03,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:17:03,812 INFO L495 AbstractCegarLoop]: Abstraction has 34246 states and 48463 transitions. [2022-10-16 15:17:03,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:17:03,812 INFO L276 IsEmpty]: Start isEmpty. Operand 34246 states and 48463 transitions. [2022-10-16 15:17:03,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 15:17:03,815 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:17:03,815 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:17:03,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 15:17:03,815 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:17:03,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:17:03,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1996828618, now seen corresponding path program 1 times [2022-10-16 15:17:03,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:17:03,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807544854] [2022-10-16 15:17:03,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:17:03,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:17:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:17:03,991 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 15:17:03,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:17:03,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807544854] [2022-10-16 15:17:03,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807544854] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:17:03,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:17:03,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 15:17:03,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938832641] [2022-10-16 15:17:03,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:17:03,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:17:03,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:17:03,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:17:03,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 15:17:03,995 INFO L87 Difference]: Start difference. First operand 34246 states and 48463 transitions. Second operand has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 15:17:06,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:17:06,316 INFO L93 Difference]: Finished difference Result 69580 states and 98267 transitions. [2022-10-16 15:17:06,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 15:17:06,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-10-16 15:17:06,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:17:06,385 INFO L225 Difference]: With dead ends: 69580 [2022-10-16 15:17:06,386 INFO L226 Difference]: Without dead ends: 35365 [2022-10-16 15:17:06,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:17:06,424 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 583 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:17:06,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 477 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:17:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35365 states. [2022-10-16 15:17:07,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35365 to 34246. [2022-10-16 15:17:08,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34246 states, 34231 states have (on average 1.4131927200490784) internal successors, (48375), 34245 states have internal predecessors, (48375), 0 states have call successors, (0), 0 states 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 15:17:08,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34246 states to 34246 states and 48375 transitions. [2022-10-16 15:17:08,075 INFO L78 Accepts]: Start accepts. Automaton has 34246 states and 48375 transitions. Word has length 90 [2022-10-16 15:17:08,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:17:08,076 INFO L495 AbstractCegarLoop]: Abstraction has 34246 states and 48375 transitions. [2022-10-16 15:17:08,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.6) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 15:17:08,076 INFO L276 IsEmpty]: Start isEmpty. Operand 34246 states and 48375 transitions. [2022-10-16 15:17:08,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 15:17:08,078 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:17:08,078 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:17:08,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 15:17:08,078 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:17:08,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:17:08,079 INFO L85 PathProgramCache]: Analyzing trace with hash 228045802, now seen corresponding path program 1 times [2022-10-16 15:17:08,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:17:08,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411030441] [2022-10-16 15:17:08,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:17:08,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:17:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:17:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 15:17:08,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:17:08,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411030441] [2022-10-16 15:17:08,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411030441] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:17:08,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:17:08,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 15:17:08,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539780951] [2022-10-16 15:17:08,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:17:08,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:17:08,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:17:08,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:17:08,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 15:17:08,216 INFO L87 Difference]: Start difference. First operand 34246 states and 48375 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 15:17:10,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:17:10,416 INFO L93 Difference]: Finished difference Result 64719 states and 91583 transitions. [2022-10-16 15:17:10,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 15:17:10,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-10-16 15:17:10,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:17:10,475 INFO L225 Difference]: With dead ends: 64719 [2022-10-16 15:17:10,475 INFO L226 Difference]: Without dead ends: 38352 [2022-10-16 15:17:10,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:17:10,498 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 540 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:17:10,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 517 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:17:10,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38352 states. [2022-10-16 15:17:12,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38352 to 38334. [2022-10-16 15:17:12,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38334 states, 38319 states have (on average 1.3986534095357395) internal successors, (53595), 38333 states have internal predecessors, (53595), 0 states have call successors, (0), 0 states 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 15:17:12,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38334 states to 38334 states and 53595 transitions. [2022-10-16 15:17:12,623 INFO L78 Accepts]: Start accepts. Automaton has 38334 states and 53595 transitions. Word has length 90 [2022-10-16 15:17:12,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:17:12,623 INFO L495 AbstractCegarLoop]: Abstraction has 38334 states and 53595 transitions. [2022-10-16 15:17:12,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 15:17:12,624 INFO L276 IsEmpty]: Start isEmpty. Operand 38334 states and 53595 transitions. [2022-10-16 15:17:12,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 15:17:12,626 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:17:12,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:17:12,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 15:17:12,627 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:17:12,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:17:12,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1359685642, now seen corresponding path program 1 times [2022-10-16 15:17:12,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:17:12,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600817207] [2022-10-16 15:17:12,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:17:12,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:17:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:17:12,760 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 15:17:12,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:17:12,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600817207] [2022-10-16 15:17:12,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600817207] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:17:12,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:17:12,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 15:17:12,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46923463] [2022-10-16 15:17:12,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:17:12,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:17:12,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:17:12,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:17:12,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 15:17:12,762 INFO L87 Difference]: Start difference. First operand 38334 states and 53595 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:17:14,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:17:14,991 INFO L93 Difference]: Finished difference Result 67703 states and 95431 transitions. [2022-10-16 15:17:14,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 15:17:14,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-10-16 15:17:14,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:17:15,045 INFO L225 Difference]: With dead ends: 67703 [2022-10-16 15:17:15,045 INFO L226 Difference]: Without dead ends: 41336 [2022-10-16 15:17:15,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:17:15,067 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 532 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:17:15,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 569 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:17:15,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41336 states. [2022-10-16 15:17:17,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41336 to 41318. [2022-10-16 15:17:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41318 states, 41303 states have (on average 1.390770646200034) internal successors, (57443), 41317 states have internal predecessors, (57443), 0 states have call successors, (0), 0 states 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 15:17:17,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41318 states to 41318 states and 57443 transitions. [2022-10-16 15:17:17,474 INFO L78 Accepts]: Start accepts. Automaton has 41318 states and 57443 transitions. Word has length 90 [2022-10-16 15:17:17,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:17:17,474 INFO L495 AbstractCegarLoop]: Abstraction has 41318 states and 57443 transitions. [2022-10-16 15:17:17,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:17:17,474 INFO L276 IsEmpty]: Start isEmpty. Operand 41318 states and 57443 transitions. [2022-10-16 15:17:17,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 15:17:17,477 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:17:17,477 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:17:17,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 15:17:17,478 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:17:17,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:17:17,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1005625742, now seen corresponding path program 1 times [2022-10-16 15:17:17,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:17:17,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474988484] [2022-10-16 15:17:17,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:17:17,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:17:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:17:17,607 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 15:17:17,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:17:17,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474988484] [2022-10-16 15:17:17,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474988484] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:17:17,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:17:17,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 15:17:17,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117522048] [2022-10-16 15:17:17,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:17:17,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:17:17,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:17:17,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:17:17,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:17:17,610 INFO L87 Difference]: Start difference. First operand 41318 states and 57443 transitions. Second operand has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:17:20,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:17:20,028 INFO L93 Difference]: Finished difference Result 44638 states and 62055 transitions. [2022-10-16 15:17:20,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:17:20,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-10-16 15:17:20,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:17:20,083 INFO L225 Difference]: With dead ends: 44638 [2022-10-16 15:17:20,083 INFO L226 Difference]: Without dead ends: 44635 [2022-10-16 15:17:20,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:17:20,096 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 223 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:17:20,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 441 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:17:20,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44635 states. [2022-10-16 15:17:22,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44635 to 41318. [2022-10-16 15:17:22,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41318 states, 41303 states have (on average 1.3861220734571338) internal successors, (57251), 41317 states have internal predecessors, (57251), 0 states have call successors, (0), 0 states 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 15:17:22,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41318 states to 41318 states and 57251 transitions. [2022-10-16 15:17:22,540 INFO L78 Accepts]: Start accepts. Automaton has 41318 states and 57251 transitions. Word has length 90 [2022-10-16 15:17:22,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:17:22,540 INFO L495 AbstractCegarLoop]: Abstraction has 41318 states and 57251 transitions. [2022-10-16 15:17:22,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:17:22,540 INFO L276 IsEmpty]: Start isEmpty. Operand 41318 states and 57251 transitions. [2022-10-16 15:17:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 15:17:22,543 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:17:22,543 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:17:22,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-16 15:17:22,543 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:17:22,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:17:22,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1520204867, now seen corresponding path program 1 times [2022-10-16 15:17:22,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:17:22,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98698584] [2022-10-16 15:17:22,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:17:22,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:17:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:17:22,661 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 15:17:22,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:17:22,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98698584] [2022-10-16 15:17:22,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98698584] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:17:22,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:17:22,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 15:17:22,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663199799] [2022-10-16 15:17:22,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:17:22,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:17:22,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:17:22,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:17:22,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:17:22,663 INFO L87 Difference]: Start difference. First operand 41318 states and 57251 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:17:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:17:25,341 INFO L93 Difference]: Finished difference Result 50756 states and 71363 transitions. [2022-10-16 15:17:25,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:17:25,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-10-16 15:17:25,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:17:25,409 INFO L225 Difference]: With dead ends: 50756 [2022-10-16 15:17:25,409 INFO L226 Difference]: Without dead ends: 50753 [2022-10-16 15:17:25,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 15:17:25,423 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 364 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:17:25,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 307 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:17:25,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50753 states. [2022-10-16 15:17:28,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50753 to 50726. [2022-10-16 15:17:28,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50726 states, 50711 states have (on average 1.3930508173769005) internal successors, (70643), 50725 states have internal predecessors, (70643), 0 states have call successors, (0), 0 states 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 15:17:28,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50726 states to 50726 states and 70643 transitions. [2022-10-16 15:17:28,400 INFO L78 Accepts]: Start accepts. Automaton has 50726 states and 70643 transitions. Word has length 91 [2022-10-16 15:17:28,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:17:28,400 INFO L495 AbstractCegarLoop]: Abstraction has 50726 states and 70643 transitions. [2022-10-16 15:17:28,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:17:28,401 INFO L276 IsEmpty]: Start isEmpty. Operand 50726 states and 70643 transitions. [2022-10-16 15:17:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 15:17:28,403 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:17:28,404 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:17:28,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-10-16 15:17:28,404 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:17:28,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:17:28,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1520514393, now seen corresponding path program 1 times [2022-10-16 15:17:28,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:17:28,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273159999] [2022-10-16 15:17:28,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:17:28,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:17:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:17:28,604 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 15:17:28,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:17:28,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273159999] [2022-10-16 15:17:28,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273159999] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:17:28,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:17:28,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 15:17:28,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830837498] [2022-10-16 15:17:28,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:17:28,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:17:28,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:17:28,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:17:28,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 15:17:28,607 INFO L87 Difference]: Start difference. First operand 50726 states and 70643 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:17:32,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:17:32,286 INFO L93 Difference]: Finished difference Result 109427 states and 153491 transitions. [2022-10-16 15:17:32,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 15:17:32,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-10-16 15:17:32,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:17:32,386 INFO L225 Difference]: With dead ends: 109427 [2022-10-16 15:17:32,387 INFO L226 Difference]: Without dead ends: 67372 [2022-10-16 15:17:32,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:17:32,429 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 612 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:17:32,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 387 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:17:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67372 states. [2022-10-16 15:17:35,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67372 to 63582. [2022-10-16 15:17:35,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63582 states, 63567 states have (on average 1.3938521559928894) internal successors, (88603), 63581 states have internal predecessors, (88603), 0 states have call successors, (0), 0 states 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 15:17:36,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63582 states to 63582 states and 88603 transitions. [2022-10-16 15:17:36,113 INFO L78 Accepts]: Start accepts. Automaton has 63582 states and 88603 transitions. Word has length 91 [2022-10-16 15:17:36,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:17:36,113 INFO L495 AbstractCegarLoop]: Abstraction has 63582 states and 88603 transitions. [2022-10-16 15:17:36,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:17:36,114 INFO L276 IsEmpty]: Start isEmpty. Operand 63582 states and 88603 transitions. [2022-10-16 15:17:36,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 15:17:36,116 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:17:36,116 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:17:36,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-10-16 15:17:36,117 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:17:36,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:17:36,117 INFO L85 PathProgramCache]: Analyzing trace with hash -799417721, now seen corresponding path program 1 times [2022-10-16 15:17:36,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:17:36,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365157200] [2022-10-16 15:17:36,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:17:36,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:17:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:17:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 15:17:36,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:17:36,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365157200] [2022-10-16 15:17:36,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365157200] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:17:36,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:17:36,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 15:17:36,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472919345] [2022-10-16 15:17:36,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:17:36,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:17:36,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:17:36,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:17:36,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 15:17:36,253 INFO L87 Difference]: Start difference. First operand 63582 states and 88603 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 15:17:41,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:17:41,071 INFO L93 Difference]: Finished difference Result 142505 states and 200527 transitions. [2022-10-16 15:17:41,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 15:17:41,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-10-16 15:17:41,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:17:41,200 INFO L225 Difference]: With dead ends: 142505 [2022-10-16 15:17:41,201 INFO L226 Difference]: Without dead ends: 86802 [2022-10-16 15:17:41,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:17:41,241 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 588 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:17:41,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 404 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:17:41,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86802 states. [2022-10-16 15:17:46,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86802 to 80030. [2022-10-16 15:17:46,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80030 states, 80015 states have (on average 1.402324564144223) internal successors, (112207), 80029 states have internal predecessors, (112207), 0 states have call successors, (0), 0 states 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 15:17:46,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80030 states to 80030 states and 112207 transitions. [2022-10-16 15:17:46,416 INFO L78 Accepts]: Start accepts. Automaton has 80030 states and 112207 transitions. Word has length 91 [2022-10-16 15:17:46,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:17:46,416 INFO L495 AbstractCegarLoop]: Abstraction has 80030 states and 112207 transitions. [2022-10-16 15:17:46,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 15:17:46,416 INFO L276 IsEmpty]: Start isEmpty. Operand 80030 states and 112207 transitions. [2022-10-16 15:17:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 15:17:46,419 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:17:46,419 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:17:46,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-10-16 15:17:46,419 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:17:46,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:17:46,420 INFO L85 PathProgramCache]: Analyzing trace with hash 118289714, now seen corresponding path program 1 times [2022-10-16 15:17:46,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:17:46,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051045241] [2022-10-16 15:17:46,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:17:46,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:17:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:17:46,561 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 15:17:46,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:17:46,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051045241] [2022-10-16 15:17:46,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051045241] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:17:46,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:17:46,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 15:17:46,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799942162] [2022-10-16 15:17:46,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:17:46,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:17:46,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:17:46,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:17:46,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 15:17:46,564 INFO L87 Difference]: Start difference. First operand 80030 states and 112207 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 15:17:51,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:17:51,326 INFO L93 Difference]: Finished difference Result 122396 states and 172191 transitions. [2022-10-16 15:17:51,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 15:17:51,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 92 [2022-10-16 15:17:51,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:17:51,463 INFO L225 Difference]: With dead ends: 122396 [2022-10-16 15:17:51,463 INFO L226 Difference]: Without dead ends: 89456 [2022-10-16 15:17:51,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 15:17:51,496 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 532 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:17:51,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 525 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:17:51,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89456 states. [2022-10-16 15:17:56,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89456 to 82382. [2022-10-16 15:17:56,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82382 states, 82367 states have (on average 1.3991889955928951) internal successors, (115247), 82381 states have internal predecessors, (115247), 0 states have call successors, (0), 0 states 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 15:17:56,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82382 states to 82382 states and 115247 transitions. [2022-10-16 15:17:56,284 INFO L78 Accepts]: Start accepts. Automaton has 82382 states and 115247 transitions. Word has length 92 [2022-10-16 15:17:56,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:17:56,284 INFO L495 AbstractCegarLoop]: Abstraction has 82382 states and 115247 transitions. [2022-10-16 15:17:56,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 15:17:56,285 INFO L276 IsEmpty]: Start isEmpty. Operand 82382 states and 115247 transitions. [2022-10-16 15:17:56,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 15:17:56,287 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:17:56,287 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:17:56,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-10-16 15:17:56,287 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:17:56,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:17:56,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2047945626, now seen corresponding path program 1 times [2022-10-16 15:17:56,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:17:56,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376246914] [2022-10-16 15:17:56,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:17:56,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:17:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:17:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 15:17:56,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:17:56,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376246914] [2022-10-16 15:17:56,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376246914] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:17:56,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:17:56,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 15:17:56,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973259451] [2022-10-16 15:17:56,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:17:56,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:17:56,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:17:56,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:17:56,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:17:56,654 INFO L87 Difference]: Start difference. First operand 82382 states and 115247 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 15:18:00,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:18:00,876 INFO L93 Difference]: Finished difference Result 91811 states and 128495 transitions. [2022-10-16 15:18:00,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:18:00,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 92 [2022-10-16 15:18:00,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:18:01,003 INFO L225 Difference]: With dead ends: 91811 [2022-10-16 15:18:01,004 INFO L226 Difference]: Without dead ends: 91808 [2022-10-16 15:18:01,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:18:01,022 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 214 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 15:18:01,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 441 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 15:18:01,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91808 states. [2022-10-16 15:18:05,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91808 to 89438. [2022-10-16 15:18:05,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89438 states, 89423 states have (on average 1.3966764702593293) internal successors, (124895), 89437 states have internal predecessors, (124895), 0 states have call successors, (0), 0 states 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 15:18:06,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89438 states to 89438 states and 124895 transitions. [2022-10-16 15:18:06,132 INFO L78 Accepts]: Start accepts. Automaton has 89438 states and 124895 transitions. Word has length 92 [2022-10-16 15:18:06,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:18:06,133 INFO L495 AbstractCegarLoop]: Abstraction has 89438 states and 124895 transitions. [2022-10-16 15:18:06,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 15:18:06,133 INFO L276 IsEmpty]: Start isEmpty. Operand 89438 states and 124895 transitions. [2022-10-16 15:18:06,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 15:18:06,135 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:18:06,135 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:18:06,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-10-16 15:18:06,135 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:18:06,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:18:06,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1240258630, now seen corresponding path program 1 times [2022-10-16 15:18:06,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:18:06,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344007474] [2022-10-16 15:18:06,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:18:06,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:18:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:18:06,535 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 15:18:06,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:18:06,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344007474] [2022-10-16 15:18:06,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344007474] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:18:06,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:18:06,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 15:18:06,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940836771] [2022-10-16 15:18:06,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:18:06,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 15:18:06,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:18:06,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 15:18:06,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:18:06,538 INFO L87 Difference]: Start difference. First operand 89438 states and 124895 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 15:18:11,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:18:11,389 INFO L93 Difference]: Finished difference Result 103420 states and 144967 transitions. [2022-10-16 15:18:11,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 15:18:11,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 92 [2022-10-16 15:18:11,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:18:11,541 INFO L225 Difference]: With dead ends: 103420 [2022-10-16 15:18:11,541 INFO L226 Difference]: Without dead ends: 103417 [2022-10-16 15:18:11,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 15:18:11,564 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 238 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 15:18:11,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 525 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 15:18:11,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103417 states. [2022-10-16 15:18:17,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103417 to 103390. [2022-10-16 15:18:17,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103390 states, 103375 states have (on average 1.3981620314389358) internal successors, (144535), 103389 states have internal predecessors, (144535), 0 states have call successors, (0), 0 states 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 15:18:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103390 states to 103390 states and 144535 transitions. [2022-10-16 15:18:17,785 INFO L78 Accepts]: Start accepts. Automaton has 103390 states and 144535 transitions. Word has length 92 [2022-10-16 15:18:17,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:18:17,785 INFO L495 AbstractCegarLoop]: Abstraction has 103390 states and 144535 transitions. [2022-10-16 15:18:17,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 15:18:17,786 INFO L276 IsEmpty]: Start isEmpty. Operand 103390 states and 144535 transitions. [2022-10-16 15:18:17,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 15:18:17,787 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:18:17,787 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:18:17,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-10-16 15:18:17,788 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 15:18:17,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:18:17,788 INFO L85 PathProgramCache]: Analyzing trace with hash 850936660, now seen corresponding path program 1 times [2022-10-16 15:18:17,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:18:17,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987731803] [2022-10-16 15:18:17,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:18:17,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:18:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:18:17,934 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 15:18:17,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:18:17,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987731803] [2022-10-16 15:18:17,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987731803] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:18:17,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:18:17,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 15:18:17,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745149578] [2022-10-16 15:18:17,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:18:17,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 15:18:17,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:18:17,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 15:18:17,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 15:18:17,936 INFO L87 Difference]: Start difference. First operand 103390 states and 144535 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)