/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-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:13:07,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:13:07,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:13:07,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 22:13:07,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 22:13:07,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 22:13:07,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 22:13:07,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 22:13:07,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 22:13:07,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 22:13:07,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 22:13:07,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 22:13:07,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 22:13:07,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 22:13:07,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 22:13:07,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 22:13:07,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 22:13:07,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 22:13:07,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 22:13:07,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 22:13:07,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 22:13:07,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 22:13:07,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 22:13:07,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 22:13:07,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 22:13:07,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 22:13:07,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 22:13:07,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 22:13:07,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 22:13:07,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 22:13:07,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 22:13:07,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 22:13:07,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 22:13:07,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 22:13:07,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 22:13:07,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 22:13:07,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 22:13:07,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 22:13:07,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 22:13:07,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 22:13:07,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 22:13:07,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 22:13:07,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:13:07,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:13:07,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:13:07,410 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:13:07,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:13:07,412 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:13:07,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:13:07,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:13:07,415 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:13:07,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:13:07,416 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:13:07,416 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:13:07,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:13:07,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:13:07,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:13:07,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:13:07,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:13:07,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:13:07,417 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:13:07,417 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:13:07,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:13:07,418 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:13:07,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:13:07,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:13:07,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:13:07,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:13:07,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:13:07,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:13:07,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:13:07,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:13:07,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:13:07,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:13:07,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:13:07,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:13:07,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:13:07,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:13:07,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:13:07,825 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:13:07,826 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:13:07,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 22:13:07,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0df717217/fabe06d290a34dc3ab05bcf3bb51afe3/FLAGf3db482b9 [2022-10-15 22:13:08,557 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:13:08,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 22:13:08,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0df717217/fabe06d290a34dc3ab05bcf3bb51afe3/FLAGf3db482b9 [2022-10-15 22:13:08,874 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0df717217/fabe06d290a34dc3ab05bcf3bb51afe3 [2022-10-15 22:13:08,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:13:08,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:13:08,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:13:08,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:13:08,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:13:08,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:13:08" (1/1) ... [2022-10-15 22:13:08,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d06ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:08, skipping insertion in model container [2022-10-15 22:13:08,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:13:08" (1/1) ... [2022-10-15 22:13:08,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:13:08,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:13:09,177 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-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2022-10-15 22:13:09,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:13:09,229 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:13:09,280 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-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2022-10-15 22:13:09,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:13:09,365 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:13:09,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09 WrapperNode [2022-10-15 22:13:09,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:13:09,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:13:09,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:13:09,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:13:09,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (1/1) ... [2022-10-15 22:13:09,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (1/1) ... [2022-10-15 22:13:09,462 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 533 [2022-10-15 22:13:09,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:13:09,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:13:09,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:13:09,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:13:09,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (1/1) ... [2022-10-15 22:13:09,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (1/1) ... [2022-10-15 22:13:09,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (1/1) ... [2022-10-15 22:13:09,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (1/1) ... [2022-10-15 22:13:09,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (1/1) ... [2022-10-15 22:13:09,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (1/1) ... [2022-10-15 22:13:09,524 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (1/1) ... [2022-10-15 22:13:09,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (1/1) ... [2022-10-15 22:13:09,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:13:09,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:13:09,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:13:09,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:13:09,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (1/1) ... [2022-10-15 22:13:09,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:13:09,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:13:09,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 22:13:09,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 22:13:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 22:13:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 22:13:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:13:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:13:09,769 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:13:09,771 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:13:10,562 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:13:10,572 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:13:10,573 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 22:13:10,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:13:10 BoogieIcfgContainer [2022-10-15 22:13:10,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:13:10,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:13:10,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:13:10,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:13:10,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:13:08" (1/3) ... [2022-10-15 22:13:10,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e759e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:13:10, skipping insertion in model container [2022-10-15 22:13:10,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:13:09" (2/3) ... [2022-10-15 22:13:10,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e759e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:13:10, skipping insertion in model container [2022-10-15 22:13:10,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:13:10" (3/3) ... [2022-10-15 22:13:10,589 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 22:13:10,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:13:10,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-15 22:13:10,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:13:10,691 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;@45b882d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:13:10,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-15 22:13:10,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 155 states have (on average 1.7483870967741935) internal successors, (271), 181 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:10,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 22:13:10,704 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:10,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 22:13:10,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:10,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:10,715 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-10-15 22:13:10,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:10,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652819685] [2022-10-15 22:13:10,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:10,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:10,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:10,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:10,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652819685] [2022-10-15 22:13:10,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652819685] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:10,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:10,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-15 22:13:10,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187358701] [2022-10-15 22:13:10,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:10,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 22:13:10,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:11,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 22:13:11,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 22:13:11,032 INFO L87 Difference]: Start difference. First operand has 182 states, 155 states have (on average 1.7483870967741935) internal successors, (271), 181 states have internal predecessors, (271), 0 states have call successors, (0), 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, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:11,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:11,068 INFO L93 Difference]: Finished difference Result 185 states and 273 transitions. [2022-10-15 22:13:11,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 22:13:11,071 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-10-15 22:13:11,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:11,084 INFO L225 Difference]: With dead ends: 185 [2022-10-15 22:13:11,084 INFO L226 Difference]: Without dead ends: 169 [2022-10-15 22:13:11,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 22:13:11,092 INFO L413 NwaCegarLoop]: 260 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, 260 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 [2022-10-15 22:13:11,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:13:11,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-10-15 22:13:11,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-10-15 22:13:11,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 153 states have (on average 1.4705882352941178) internal successors, (225), 168 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 225 transitions. [2022-10-15 22:13:11,151 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 225 transitions. Word has length 4 [2022-10-15 22:13:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:11,151 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 225 transitions. [2022-10-15 22:13:11,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 225 transitions. [2022-10-15 22:13:11,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 22:13:11,156 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:11,156 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:11,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:13:11,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:11,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:11,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1722695750, now seen corresponding path program 1 times [2022-10-15 22:13:11,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:11,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53035094] [2022-10-15 22:13:11,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:11,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:11,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:11,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53035094] [2022-10-15 22:13:11,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53035094] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:11,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:11,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:13:11,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166522267] [2022-10-15 22:13:11,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:11,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:13:11,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:11,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:13:11,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:11,518 INFO L87 Difference]: Start difference. First operand 169 states and 225 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:11,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:11,585 INFO L93 Difference]: Finished difference Result 405 states and 563 transitions. [2022-10-15 22:13:11,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:13:11,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 22:13:11,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:11,589 INFO L225 Difference]: With dead ends: 405 [2022-10-15 22:13:11,590 INFO L226 Difference]: Without dead ends: 279 [2022-10-15 22:13:11,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:11,593 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 166 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 531 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 [2022-10-15 22:13:11,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 531 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:13:11,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-10-15 22:13:11,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 263. [2022-10-15 22:13:11,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 247 states have (on average 1.5384615384615385) internal successors, (380), 262 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:11,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 380 transitions. [2022-10-15 22:13:11,650 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 380 transitions. Word has length 65 [2022-10-15 22:13:11,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:11,651 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 380 transitions. [2022-10-15 22:13:11,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:11,656 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 380 transitions. [2022-10-15 22:13:11,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 22:13:11,658 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:11,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:11,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 22:13:11,661 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:11,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash 312766776, now seen corresponding path program 1 times [2022-10-15 22:13:11,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:11,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771927772] [2022-10-15 22:13:11,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:11,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:11,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:11,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:11,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771927772] [2022-10-15 22:13:11,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771927772] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:11,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:11,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:13:11,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672931336] [2022-10-15 22:13:11,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:11,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:13:11,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:11,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:13:11,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:11,990 INFO L87 Difference]: Start difference. First operand 263 states and 380 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:12,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:12,070 INFO L93 Difference]: Finished difference Result 671 states and 1002 transitions. [2022-10-15 22:13:12,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:13:12,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-10-15 22:13:12,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:12,075 INFO L225 Difference]: With dead ends: 671 [2022-10-15 22:13:12,075 INFO L226 Difference]: Without dead ends: 451 [2022-10-15 22:13:12,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:12,079 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 161 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 516 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 [2022-10-15 22:13:12,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 516 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:13:12,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-10-15 22:13:12,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 435. [2022-10-15 22:13:12,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 419 states have (on average 1.5823389021479715) internal successors, (663), 434 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:12,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 663 transitions. [2022-10-15 22:13:12,155 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 663 transitions. Word has length 66 [2022-10-15 22:13:12,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:12,155 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 663 transitions. [2022-10-15 22:13:12,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:12,156 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 663 transitions. [2022-10-15 22:13:12,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 22:13:12,159 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:12,159 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:12,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 22:13:12,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:12,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:12,160 INFO L85 PathProgramCache]: Analyzing trace with hash -99365457, now seen corresponding path program 1 times [2022-10-15 22:13:12,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:12,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528493613] [2022-10-15 22:13:12,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:12,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:12,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:12,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:12,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528493613] [2022-10-15 22:13:12,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528493613] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:12,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:12,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:13:12,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852540057] [2022-10-15 22:13:12,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:12,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:13:12,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:12,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:13:12,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:12,288 INFO L87 Difference]: Start difference. First operand 435 states and 663 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:12,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:12,364 INFO L93 Difference]: Finished difference Result 1155 states and 1799 transitions. [2022-10-15 22:13:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:13:12,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-10-15 22:13:12,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:12,370 INFO L225 Difference]: With dead ends: 1155 [2022-10-15 22:13:12,370 INFO L226 Difference]: Without dead ends: 763 [2022-10-15 22:13:12,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:12,374 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 156 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 501 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 [2022-10-15 22:13:12,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 501 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:13:12,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2022-10-15 22:13:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 747. [2022-10-15 22:13:12,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 731 states have (on average 1.6073871409028728) internal successors, (1175), 746 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:12,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1175 transitions. [2022-10-15 22:13:12,448 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1175 transitions. Word has length 67 [2022-10-15 22:13:12,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:12,449 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 1175 transitions. [2022-10-15 22:13:12,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:12,449 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1175 transitions. [2022-10-15 22:13:12,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-15 22:13:12,451 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:12,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:12,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 22:13:12,452 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:12,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:12,453 INFO L85 PathProgramCache]: Analyzing trace with hash -997121257, now seen corresponding path program 1 times [2022-10-15 22:13:12,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:12,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460784404] [2022-10-15 22:13:12,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:12,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:12,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:12,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:12,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460784404] [2022-10-15 22:13:12,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460784404] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:12,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:12,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:13:12,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289587958] [2022-10-15 22:13:12,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:12,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:13:12,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:12,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:13:12,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:12,557 INFO L87 Difference]: Start difference. First operand 747 states and 1175 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:12,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:12,707 INFO L93 Difference]: Finished difference Result 2027 states and 3231 transitions. [2022-10-15 22:13:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:13:12,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-10-15 22:13:12,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:12,716 INFO L225 Difference]: With dead ends: 2027 [2022-10-15 22:13:12,716 INFO L226 Difference]: Without dead ends: 1323 [2022-10-15 22:13:12,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:12,719 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 151 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 486 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 [2022-10-15 22:13:12,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 486 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:13:12,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2022-10-15 22:13:12,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1307. [2022-10-15 22:13:12,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 1291 states have (on average 1.6196746707978311) internal successors, (2091), 1306 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 2091 transitions. [2022-10-15 22:13:12,847 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 2091 transitions. Word has length 68 [2022-10-15 22:13:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:12,848 INFO L495 AbstractCegarLoop]: Abstraction has 1307 states and 2091 transitions. [2022-10-15 22:13:12,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:12,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 2091 transitions. [2022-10-15 22:13:12,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 22:13:12,850 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:12,850 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:12,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 22:13:12,851 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:12,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:12,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1468909444, now seen corresponding path program 1 times [2022-10-15 22:13:12,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:12,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54151128] [2022-10-15 22:13:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:12,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:13,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:13,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:13,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54151128] [2022-10-15 22:13:13,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54151128] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:13,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:13,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:13:13,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143574145] [2022-10-15 22:13:13,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:13,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:13:13,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:13,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:13:13,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:13:13,016 INFO L87 Difference]: Start difference. First operand 1307 states and 2091 transitions. Second operand has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:13,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:13,531 INFO L93 Difference]: Finished difference Result 3833 states and 6187 transitions. [2022-10-15 22:13:13,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:13:13,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-10-15 22:13:13,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:13,556 INFO L225 Difference]: With dead ends: 3833 [2022-10-15 22:13:13,556 INFO L226 Difference]: Without dead ends: 3831 [2022-10-15 22:13:13,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:13:13,564 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 539 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:13:13,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 618 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:13:13,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3831 states. [2022-10-15 22:13:13,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3831 to 2555. [2022-10-15 22:13:13,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2539 states have (on average 1.6175659708546672) internal successors, (4107), 2554 states have internal predecessors, (4107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:13,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 4107 transitions. [2022-10-15 22:13:13,849 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 4107 transitions. Word has length 69 [2022-10-15 22:13:13,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:13,851 INFO L495 AbstractCegarLoop]: Abstraction has 2555 states and 4107 transitions. [2022-10-15 22:13:13,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:13,851 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 4107 transitions. [2022-10-15 22:13:13,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-15 22:13:13,854 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:13,854 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:13,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 22:13:13,856 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:13,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:13,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1708447251, now seen corresponding path program 1 times [2022-10-15 22:13:13,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:13,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005387947] [2022-10-15 22:13:13,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:13,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:14,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:14,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:14,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005387947] [2022-10-15 22:13:14,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005387947] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:14,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:14,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:13:14,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219282650] [2022-10-15 22:13:14,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:14,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:13:14,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:14,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:13:14,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:13:14,098 INFO L87 Difference]: Start difference. First operand 2555 states and 4107 transitions. Second operand has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:14,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:14,556 INFO L93 Difference]: Finished difference Result 3817 states and 6155 transitions. [2022-10-15 22:13:14,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:13:14,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-10-15 22:13:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:14,577 INFO L225 Difference]: With dead ends: 3817 [2022-10-15 22:13:14,577 INFO L226 Difference]: Without dead ends: 3815 [2022-10-15 22:13:14,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:13:14,580 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 534 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:13:14,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 358 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:13:14,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3815 states. [2022-10-15 22:13:14,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3815 to 3803. [2022-10-15 22:13:14,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3787 states have (on average 1.608397148138368) internal successors, (6091), 3802 states have internal predecessors, (6091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:14,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 6091 transitions. [2022-10-15 22:13:14,975 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 6091 transitions. Word has length 70 [2022-10-15 22:13:14,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:14,976 INFO L495 AbstractCegarLoop]: Abstraction has 3803 states and 6091 transitions. [2022-10-15 22:13:14,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:14,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 6091 transitions. [2022-10-15 22:13:14,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 22:13:14,977 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:14,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:14,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 22:13:14,978 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:14,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1422256986, now seen corresponding path program 1 times [2022-10-15 22:13:14,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:14,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510502993] [2022-10-15 22:13:14,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:14,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:15,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:15,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510502993] [2022-10-15 22:13:15,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510502993] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:15,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:15,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:13:15,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112540990] [2022-10-15 22:13:15,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:15,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:13:15,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:15,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:13:15,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:13:15,128 INFO L87 Difference]: Start difference. First operand 3803 states and 6091 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:15,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:15,948 INFO L93 Difference]: Finished difference Result 6335 states and 10091 transitions. [2022-10-15 22:13:15,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 22:13:15,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-10-15 22:13:15,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:15,982 INFO L225 Difference]: With dead ends: 6335 [2022-10-15 22:13:15,982 INFO L226 Difference]: Without dead ends: 6333 [2022-10-15 22:13:15,985 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 [2022-10-15 22:13:15,986 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 907 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:13:15,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 1030 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:13:15,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6333 states. [2022-10-15 22:13:16,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6333 to 5051. [2022-10-15 22:13:16,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5051 states, 5035 states have (on average 1.5974180734856007) internal successors, (8043), 5050 states have internal predecessors, (8043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:16,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5051 states to 5051 states and 8043 transitions. [2022-10-15 22:13:16,619 INFO L78 Accepts]: Start accepts. Automaton has 5051 states and 8043 transitions. Word has length 71 [2022-10-15 22:13:16,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:16,619 INFO L495 AbstractCegarLoop]: Abstraction has 5051 states and 8043 transitions. [2022-10-15 22:13:16,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:16,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5051 states and 8043 transitions. [2022-10-15 22:13:16,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 22:13:16,621 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:16,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:16,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 22:13:16,621 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:16,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:16,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1140293361, now seen corresponding path program 1 times [2022-10-15 22:13:16,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:16,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254550228] [2022-10-15 22:13:16,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:16,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:16,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:16,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:16,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254550228] [2022-10-15 22:13:16,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254550228] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:16,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:16,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:13:16,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543240665] [2022-10-15 22:13:16,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:16,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:13:16,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:16,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:13:16,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:13:16,749 INFO L87 Difference]: Start difference. First operand 5051 states and 8043 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:17,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:17,455 INFO L93 Difference]: Finished difference Result 6323 states and 10059 transitions. [2022-10-15 22:13:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:13:17,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-10-15 22:13:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:17,489 INFO L225 Difference]: With dead ends: 6323 [2022-10-15 22:13:17,489 INFO L226 Difference]: Without dead ends: 6321 [2022-10-15 22:13:17,491 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 [2022-10-15 22:13:17,492 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 926 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:13:17,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 631 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:13:17,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6321 states. [2022-10-15 22:13:18,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6321 to 6299. [2022-10-15 22:13:18,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6299 states, 6283 states have (on average 1.5857074645869806) internal successors, (9963), 6298 states have internal predecessors, (9963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:18,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6299 states to 6299 states and 9963 transitions. [2022-10-15 22:13:18,207 INFO L78 Accepts]: Start accepts. Automaton has 6299 states and 9963 transitions. Word has length 72 [2022-10-15 22:13:18,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:18,208 INFO L495 AbstractCegarLoop]: Abstraction has 6299 states and 9963 transitions. [2022-10-15 22:13:18,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:18,208 INFO L276 IsEmpty]: Start isEmpty. Operand 6299 states and 9963 transitions. [2022-10-15 22:13:18,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 22:13:18,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:18,210 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:18,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 22:13:18,210 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:18,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:18,211 INFO L85 PathProgramCache]: Analyzing trace with hash -989355576, now seen corresponding path program 1 times [2022-10-15 22:13:18,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:18,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872530076] [2022-10-15 22:13:18,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:18,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:18,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:18,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:18,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872530076] [2022-10-15 22:13:18,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872530076] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:18,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:18,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 22:13:18,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148502921] [2022-10-15 22:13:18,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:18,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:13:18,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:18,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:13:18,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:13:18,381 INFO L87 Difference]: Start difference. First operand 6299 states and 9963 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:19,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:19,445 INFO L93 Difference]: Finished difference Result 10081 states and 15883 transitions. [2022-10-15 22:13:19,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 22:13:19,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-10-15 22:13:19,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:19,488 INFO L225 Difference]: With dead ends: 10081 [2022-10-15 22:13:19,488 INFO L226 Difference]: Without dead ends: 10079 [2022-10-15 22:13:19,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-15 22:13:19,493 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1257 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:13:19,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 1577 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:13:19,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10079 states. [2022-10-15 22:13:20,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10079 to 7547. [2022-10-15 22:13:20,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7547 states, 7531 states have (on average 1.5736290001327844) internal successors, (11851), 7546 states have internal predecessors, (11851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:20,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7547 states to 7547 states and 11851 transitions. [2022-10-15 22:13:20,147 INFO L78 Accepts]: Start accepts. Automaton has 7547 states and 11851 transitions. Word has length 73 [2022-10-15 22:13:20,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:20,147 INFO L495 AbstractCegarLoop]: Abstraction has 7547 states and 11851 transitions. [2022-10-15 22:13:20,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:20,148 INFO L276 IsEmpty]: Start isEmpty. Operand 7547 states and 11851 transitions. [2022-10-15 22:13:20,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 22:13:20,149 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:20,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:20,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 22:13:20,149 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:20,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:20,150 INFO L85 PathProgramCache]: Analyzing trace with hash -605251535, now seen corresponding path program 1 times [2022-10-15 22:13:20,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:20,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769636467] [2022-10-15 22:13:20,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:20,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:20,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:20,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769636467] [2022-10-15 22:13:20,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769636467] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:20,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:20,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 22:13:20,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199176750] [2022-10-15 22:13:20,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:20,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:13:20,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:20,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:13:20,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:13:20,327 INFO L87 Difference]: Start difference. First operand 7547 states and 11851 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:21,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:21,537 INFO L93 Difference]: Finished difference Result 10075 states and 15787 transitions. [2022-10-15 22:13:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 22:13:21,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-10-15 22:13:21,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:21,569 INFO L225 Difference]: With dead ends: 10075 [2022-10-15 22:13:21,569 INFO L226 Difference]: Without dead ends: 10073 [2022-10-15 22:13:21,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-15 22:13:21,573 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1279 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:13:21,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 1040 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:13:21,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10073 states. [2022-10-15 22:13:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10073 to 10043. [2022-10-15 22:13:22,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10043 states, 10027 states have (on average 1.5616834546723846) internal successors, (15659), 10042 states have internal predecessors, (15659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10043 states to 10043 states and 15659 transitions. [2022-10-15 22:13:22,320 INFO L78 Accepts]: Start accepts. Automaton has 10043 states and 15659 transitions. Word has length 74 [2022-10-15 22:13:22,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:22,320 INFO L495 AbstractCegarLoop]: Abstraction has 10043 states and 15659 transitions. [2022-10-15 22:13:22,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:22,321 INFO L276 IsEmpty]: Start isEmpty. Operand 10043 states and 15659 transitions. [2022-10-15 22:13:22,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 22:13:22,322 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:22,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:22,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 22:13:22,323 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:22,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:22,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1582928150, now seen corresponding path program 1 times [2022-10-15 22:13:22,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:22,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435632339] [2022-10-15 22:13:22,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:22,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:22,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:22,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:22,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435632339] [2022-10-15 22:13:22,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435632339] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:22,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:22,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 22:13:22,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020309802] [2022-10-15 22:13:22,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:22,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 22:13:22,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:22,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 22:13:22,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:13:22,475 INFO L87 Difference]: Start difference. First operand 10043 states and 15659 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:23,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:23,994 INFO L93 Difference]: Finished difference Result 25069 states and 39083 transitions. [2022-10-15 22:13:23,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 22:13:23,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-10-15 22:13:23,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:24,044 INFO L225 Difference]: With dead ends: 25069 [2022-10-15 22:13:24,044 INFO L226 Difference]: Without dead ends: 15069 [2022-10-15 22:13:24,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-10-15 22:13:24,062 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1579 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 22:13:24,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1579 Valid, 2259 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 22:13:24,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15069 states. [2022-10-15 22:13:25,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15069 to 11291. [2022-10-15 22:13:25,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11291 states, 11275 states have (on average 1.5477605321507761) internal successors, (17451), 11290 states have internal predecessors, (17451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:25,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11291 states to 11291 states and 17451 transitions. [2022-10-15 22:13:25,104 INFO L78 Accepts]: Start accepts. Automaton has 11291 states and 17451 transitions. Word has length 75 [2022-10-15 22:13:25,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:25,104 INFO L495 AbstractCegarLoop]: Abstraction has 11291 states and 17451 transitions. [2022-10-15 22:13:25,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 11291 states and 17451 transitions. [2022-10-15 22:13:25,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 22:13:25,106 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:25,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:25,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 22:13:25,107 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:25,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:25,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1485498909, now seen corresponding path program 1 times [2022-10-15 22:13:25,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:25,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949421965] [2022-10-15 22:13:25,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:25,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:25,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:25,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949421965] [2022-10-15 22:13:25,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949421965] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:25,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:25,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:13:25,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103727054] [2022-10-15 22:13:25,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:25,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:13:25,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:25,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:13:25,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:25,182 INFO L87 Difference]: Start difference. First operand 11291 states and 17451 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:26,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:26,465 INFO L93 Difference]: Finished difference Result 31771 states and 49099 transitions. [2022-10-15 22:13:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:13:26,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-10-15 22:13:26,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:26,510 INFO L225 Difference]: With dead ends: 31771 [2022-10-15 22:13:26,510 INFO L226 Difference]: Without dead ends: 20523 [2022-10-15 22:13:26,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:26,531 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 166 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 562 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 [2022-10-15 22:13:26,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 562 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:13:26,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20523 states. [2022-10-15 22:13:28,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20523 to 20507. [2022-10-15 22:13:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20507 states, 20491 states have (on average 1.53955395051486) internal successors, (31547), 20506 states have internal predecessors, (31547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:28,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20507 states to 20507 states and 31547 transitions. [2022-10-15 22:13:28,439 INFO L78 Accepts]: Start accepts. Automaton has 20507 states and 31547 transitions. Word has length 75 [2022-10-15 22:13:28,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:28,439 INFO L495 AbstractCegarLoop]: Abstraction has 20507 states and 31547 transitions. [2022-10-15 22:13:28,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:28,440 INFO L276 IsEmpty]: Start isEmpty. Operand 20507 states and 31547 transitions. [2022-10-15 22:13:28,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-15 22:13:28,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:28,441 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:28,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 22:13:28,442 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:28,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:28,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1826132141, now seen corresponding path program 1 times [2022-10-15 22:13:28,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:28,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928844166] [2022-10-15 22:13:28,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:28,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:28,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:28,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:28,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928844166] [2022-10-15 22:13:28,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928844166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:28,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:28,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 22:13:28,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164288440] [2022-10-15 22:13:28,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:28,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 22:13:28,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:28,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 22:13:28,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:13:28,621 INFO L87 Difference]: Start difference. First operand 20507 states and 31547 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:32,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:32,217 INFO L93 Difference]: Finished difference Result 36473 states and 56491 transitions. [2022-10-15 22:13:32,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 22:13:32,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-10-15 22:13:32,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:32,292 INFO L225 Difference]: With dead ends: 36473 [2022-10-15 22:13:32,292 INFO L226 Difference]: Without dead ends: 36471 [2022-10-15 22:13:32,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2022-10-15 22:13:32,301 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 2274 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 22:13:32,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2274 Valid, 1616 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 22:13:32,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36471 states. [2022-10-15 22:13:35,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36471 to 36411. [2022-10-15 22:13:35,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36411 states, 36395 states have (on average 1.5363374089847506) internal successors, (55915), 36410 states have internal predecessors, (55915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:35,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36411 states to 36411 states and 55915 transitions. [2022-10-15 22:13:35,224 INFO L78 Accepts]: Start accepts. Automaton has 36411 states and 55915 transitions. Word has length 76 [2022-10-15 22:13:35,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:35,225 INFO L495 AbstractCegarLoop]: Abstraction has 36411 states and 55915 transitions. [2022-10-15 22:13:35,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:35,225 INFO L276 IsEmpty]: Start isEmpty. Operand 36411 states and 55915 transitions. [2022-10-15 22:13:35,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-15 22:13:35,229 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:35,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:35,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 22:13:35,230 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:35,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:35,231 INFO L85 PathProgramCache]: Analyzing trace with hash 479339329, now seen corresponding path program 1 times [2022-10-15 22:13:35,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:35,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368143502] [2022-10-15 22:13:35,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:35,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:35,324 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:13:35,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:35,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368143502] [2022-10-15 22:13:35,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368143502] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:35,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:35,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:13:35,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117401746] [2022-10-15 22:13:35,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:35,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:13:35,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:35,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:13:35,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:35,327 INFO L87 Difference]: Start difference. First operand 36411 states and 55915 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:41,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:41,399 INFO L93 Difference]: Finished difference Result 106331 states and 163051 transitions. [2022-10-15 22:13:41,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:13:41,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-10-15 22:13:41,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:41,547 INFO L225 Difference]: With dead ends: 106331 [2022-10-15 22:13:41,547 INFO L226 Difference]: Without dead ends: 69963 [2022-10-15 22:13:41,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:13:41,605 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 132 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:13:41,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 451 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:13:41,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69963 states. [2022-10-15 22:13:47,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69963 to 69947. [2022-10-15 22:13:47,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69947 states, 69931 states have (on average 1.5253178132730836) internal successors, (106667), 69946 states have internal predecessors, (106667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:48,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69947 states to 69947 states and 106667 transitions. [2022-10-15 22:13:48,062 INFO L78 Accepts]: Start accepts. Automaton has 69947 states and 106667 transitions. Word has length 105 [2022-10-15 22:13:48,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:13:48,062 INFO L495 AbstractCegarLoop]: Abstraction has 69947 states and 106667 transitions. [2022-10-15 22:13:48,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:48,062 INFO L276 IsEmpty]: Start isEmpty. Operand 69947 states and 106667 transitions. [2022-10-15 22:13:48,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-15 22:13:48,069 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:13:48,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:13:48,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 22:13:48,070 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:13:48,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:13:48,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1622440120, now seen corresponding path program 1 times [2022-10-15 22:13:48,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:13:48,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250998681] [2022-10-15 22:13:48,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:13:48,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:13:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:13:48,245 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 22:13:48,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:13:48,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250998681] [2022-10-15 22:13:48,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250998681] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:13:48,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:13:48,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:13:48,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178336603] [2022-10-15 22:13:48,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:13:48,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:13:48,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:13:48,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:13:48,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:13:48,249 INFO L87 Difference]: Start difference. First operand 69947 states and 106667 transitions. Second operand has 4 states, 3 states have (on average 34.0) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:13:56,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:13:56,477 INFO L93 Difference]: Finished difference Result 96179 states and 147563 transitions. [2022-10-15 22:13:56,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:13:56,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.0) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-10-15 22:13:56,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:13:56,623 INFO L225 Difference]: With dead ends: 96179 [2022-10-15 22:13:56,623 INFO L226 Difference]: Without dead ends: 96177 [2022-10-15 22:13:56,650 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 [2022-10-15 22:13:56,651 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 294 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:13:56,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 678 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:13:56,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96177 states. [2022-10-15 22:14:04,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96177 to 78683. [2022-10-15 22:14:04,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78683 states, 78667 states have (on average 1.5292180965334892) internal successors, (120299), 78682 states have internal predecessors, (120299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:14:04,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78683 states to 78683 states and 120299 transitions. [2022-10-15 22:14:04,815 INFO L78 Accepts]: Start accepts. Automaton has 78683 states and 120299 transitions. Word has length 107 [2022-10-15 22:14:04,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:14:04,816 INFO L495 AbstractCegarLoop]: Abstraction has 78683 states and 120299 transitions. [2022-10-15 22:14:04,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.0) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:14:04,816 INFO L276 IsEmpty]: Start isEmpty. Operand 78683 states and 120299 transitions. [2022-10-15 22:14:04,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-15 22:14:04,824 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:14:04,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:14:04,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 22:14:04,825 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-15 22:14:04,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:14:04,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1006389164, now seen corresponding path program 1 times [2022-10-15 22:14:04,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:14:04,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116186136] [2022-10-15 22:14:04,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:14:04,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:14:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:14:04,915 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:14:04,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:14:04,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116186136] [2022-10-15 22:14:04,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116186136] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:14:04,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:14:04,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:14:04,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044303831] [2022-10-15 22:14:04,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:14:04,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:14:04,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:14:04,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:14:04,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:14:04,918 INFO L87 Difference]: Start difference. First operand 78683 states and 120299 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)