/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-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 03:41:27,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 03:41:27,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 03:41:27,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 03:41:27,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 03:41:27,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 03:41:27,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 03:41:27,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 03:41:27,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 03:41:27,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 03:41:27,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 03:41:27,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 03:41:27,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 03:41:27,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 03:41:27,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 03:41:27,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 03:41:27,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 03:41:27,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 03:41:27,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 03:41:27,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 03:41:27,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 03:41:27,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 03:41:27,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 03:41:27,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 03:41:27,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 03:41:27,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 03:41:27,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 03:41:27,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 03:41:27,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 03:41:27,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 03:41:27,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 03:41:27,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 03:41:27,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 03:41:27,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 03:41:27,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 03:41:27,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 03:41:27,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 03:41:27,421 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 03:41:27,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 03:41:27,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 03:41:27,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 03:41:27,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 03:41:27,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 03:41:27,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 03:41:27,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 03:41:27,425 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 03:41:27,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 03:41:27,425 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 03:41:27,425 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 03:41:27,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 03:41:27,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 03:41:27,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 03:41:27,426 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 03:41:27,426 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 03:41:27,426 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 03:41:27,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 03:41:27,427 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 03:41:27,427 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 03:41:27,427 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 03:41:27,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 03:41:27,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 03:41:27,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 03:41:27,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:41:27,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 03:41:27,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 03:41:27,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 03:41:27,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 03:41:27,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 03:41:27,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 03:41:27,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 03:41:27,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 03:41:27,882 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 03:41:27,883 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 03:41:27,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-10-16 03:41:27,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad467d05/7fe4ba39535a4020b0b6a5cb22a3559e/FLAG1c800d911 [2022-10-16 03:41:28,660 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 03:41:28,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-10-16 03:41:28,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad467d05/7fe4ba39535a4020b0b6a5cb22a3559e/FLAG1c800d911 [2022-10-16 03:41:28,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad467d05/7fe4ba39535a4020b0b6a5cb22a3559e [2022-10-16 03:41:28,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 03:41:29,000 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 03:41:29,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 03:41:29,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 03:41:29,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 03:41:29,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:41:28" (1/1) ... [2022-10-16 03:41:29,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9371c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29, skipping insertion in model container [2022-10-16 03:41:29,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:41:28" (1/1) ... [2022-10-16 03:41:29,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 03:41:29,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 03:41:29,318 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.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7182,7195] [2022-10-16 03:41:29,336 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.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[9513,9526] [2022-10-16 03:41:29,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:41:29,379 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 03:41:29,449 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.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7182,7195] [2022-10-16 03:41:29,473 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.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[9513,9526] [2022-10-16 03:41:29,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:41:29,515 INFO L208 MainTranslator]: Completed translation [2022-10-16 03:41:29,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29 WrapperNode [2022-10-16 03:41:29,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 03:41:29,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 03:41:29,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 03:41:29,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 03:41:29,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (1/1) ... [2022-10-16 03:41:29,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (1/1) ... [2022-10-16 03:41:29,641 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 466 [2022-10-16 03:41:29,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 03:41:29,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 03:41:29,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 03:41:29,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 03:41:29,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (1/1) ... [2022-10-16 03:41:29,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (1/1) ... [2022-10-16 03:41:29,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (1/1) ... [2022-10-16 03:41:29,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (1/1) ... [2022-10-16 03:41:29,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (1/1) ... [2022-10-16 03:41:29,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (1/1) ... [2022-10-16 03:41:29,706 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (1/1) ... [2022-10-16 03:41:29,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (1/1) ... [2022-10-16 03:41:29,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 03:41:29,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 03:41:29,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 03:41:29,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 03:41:29,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (1/1) ... [2022-10-16 03:41:29,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:41:29,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:41:29,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 03:41:29,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 03:41:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 03:41:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 03:41:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 03:41:29,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 03:41:30,018 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 03:41:30,024 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 03:41:30,708 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 03:41:30,717 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 03:41:30,718 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 03:41:30,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:41:30 BoogieIcfgContainer [2022-10-16 03:41:30,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 03:41:30,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 03:41:30,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 03:41:30,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 03:41:30,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:41:28" (1/3) ... [2022-10-16 03:41:30,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d68179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:41:30, skipping insertion in model container [2022-10-16 03:41:30,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:41:29" (2/3) ... [2022-10-16 03:41:30,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d68179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:41:30, skipping insertion in model container [2022-10-16 03:41:30,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:41:30" (3/3) ... [2022-10-16 03:41:30,731 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-10-16 03:41:30,755 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 03:41:30,756 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-10-16 03:41:30,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 03:41:30,832 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@4bb4aa63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 03:41:30,833 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-10-16 03:41:30,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 103 states have (on average 1.766990291262136) internal successors, (182), 106 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:30,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 03:41:30,847 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:30,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 03:41:30,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:30,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:30,855 INFO L85 PathProgramCache]: Analyzing trace with hash 939173, now seen corresponding path program 1 times [2022-10-16 03:41:30,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:30,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720302768] [2022-10-16 03:41:30,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:30,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:31,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:31,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:31,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720302768] [2022-10-16 03:41:31,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720302768] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:31,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:31,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 03:41:31,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198773947] [2022-10-16 03:41:31,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:31,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:41:31,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:31,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:41:31,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:31,215 INFO L87 Difference]: Start difference. First operand has 107 states, 103 states have (on average 1.766990291262136) internal successors, (182), 106 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-10-16 03:41:31,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:31,285 INFO L93 Difference]: Finished difference Result 106 states and 179 transitions. [2022-10-16 03:41:31,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:41:31,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 [2022-10-16 03:41:31,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:31,305 INFO L225 Difference]: With dead ends: 106 [2022-10-16 03:41:31,306 INFO L226 Difference]: Without dead ends: 103 [2022-10-16 03:41:31,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:31,316 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 176 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:31,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 178 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:41:31,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-10-16 03:41:31,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-10-16 03:41:31,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 101 states have (on average 1.3762376237623761) internal successors, (139), 102 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 139 transitions. [2022-10-16 03:41:31,396 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 139 transitions. Word has length 4 [2022-10-16 03:41:31,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:31,397 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 139 transitions. [2022-10-16 03:41:31,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-10-16 03:41:31,397 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 139 transitions. [2022-10-16 03:41:31,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 03:41:31,402 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:31,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:41:31,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 03:41:31,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:31,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:31,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1038847250, now seen corresponding path program 1 times [2022-10-16 03:41:31,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:31,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759835281] [2022-10-16 03:41:31,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:31,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:31,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:31,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:31,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759835281] [2022-10-16 03:41:31,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759835281] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:31,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:31,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:41:31,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898077883] [2022-10-16 03:41:31,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:31,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:41:31,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:31,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:41:31,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:41:31,929 INFO L87 Difference]: Start difference. First operand 103 states and 139 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:32,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:32,254 INFO L93 Difference]: Finished difference Result 353 states and 509 transitions. [2022-10-16 03:41:32,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 03:41:32,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-16 03:41:32,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:32,260 INFO L225 Difference]: With dead ends: 353 [2022-10-16 03:41:32,260 INFO L226 Difference]: Without dead ends: 353 [2022-10-16 03:41:32,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 03:41:32,262 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 483 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:32,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 667 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 03:41:32,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-10-16 03:41:32,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 155. [2022-10-16 03:41:32,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.4313725490196079) internal successors, (219), 154 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:32,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 219 transitions. [2022-10-16 03:41:32,288 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 219 transitions. Word has length 48 [2022-10-16 03:41:32,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:32,288 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 219 transitions. [2022-10-16 03:41:32,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:32,289 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 219 transitions. [2022-10-16 03:41:32,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 03:41:32,291 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:32,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:41:32,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 03:41:32,292 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:32,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:32,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1964840261, now seen corresponding path program 1 times [2022-10-16 03:41:32,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:32,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402095358] [2022-10-16 03:41:32,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:32,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:32,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:32,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:32,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402095358] [2022-10-16 03:41:32,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402095358] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:32,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:32,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:41:32,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399148550] [2022-10-16 03:41:32,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:32,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:41:32,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:32,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:41:32,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:32,523 INFO L87 Difference]: Start difference. First operand 155 states and 219 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:32,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:32,587 INFO L93 Difference]: Finished difference Result 159 states and 221 transitions. [2022-10-16 03:41:32,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:41:32,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-10-16 03:41:32,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:32,592 INFO L225 Difference]: With dead ends: 159 [2022-10-16 03:41:32,593 INFO L226 Difference]: Without dead ends: 159 [2022-10-16 03:41:32,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:32,602 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 73 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:32,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 301 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:41:32,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-10-16 03:41:32,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2022-10-16 03:41:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 155 states have (on average 1.4193548387096775) internal successors, (220), 156 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:32,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 220 transitions. [2022-10-16 03:41:32,640 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 220 transitions. Word has length 49 [2022-10-16 03:41:32,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:32,640 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 220 transitions. [2022-10-16 03:41:32,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:32,643 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 220 transitions. [2022-10-16 03:41:32,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 03:41:32,645 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:32,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:41:32,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 03:41:32,649 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:32,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:32,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1398279763, now seen corresponding path program 1 times [2022-10-16 03:41:32,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:32,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116093239] [2022-10-16 03:41:32,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:32,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:32,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:32,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116093239] [2022-10-16 03:41:32,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116093239] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:32,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:32,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:41:32,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954119522] [2022-10-16 03:41:32,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:32,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:41:32,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:32,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:41:32,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:41:32,915 INFO L87 Difference]: Start difference. First operand 157 states and 220 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:33,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:33,025 INFO L93 Difference]: Finished difference Result 388 states and 562 transitions. [2022-10-16 03:41:33,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:41:33,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 03:41:33,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:33,028 INFO L225 Difference]: With dead ends: 388 [2022-10-16 03:41:33,028 INFO L226 Difference]: Without dead ends: 388 [2022-10-16 03:41:33,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:41:33,030 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 293 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:33,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 598 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:41:33,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-10-16 03:41:33,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 248. [2022-10-16 03:41:33,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 246 states have (on average 1.4593495934959348) internal successors, (359), 247 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 359 transitions. [2022-10-16 03:41:33,044 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 359 transitions. Word has length 50 [2022-10-16 03:41:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:33,045 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 359 transitions. [2022-10-16 03:41:33,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 359 transitions. [2022-10-16 03:41:33,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 03:41:33,047 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:33,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:41:33,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 03:41:33,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:33,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:33,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1526101883, now seen corresponding path program 1 times [2022-10-16 03:41:33,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:33,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584558215] [2022-10-16 03:41:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:33,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:33,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:33,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584558215] [2022-10-16 03:41:33,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584558215] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:33,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:33,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:41:33,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150477000] [2022-10-16 03:41:33,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:33,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:41:33,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:33,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:41:33,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:41:33,207 INFO L87 Difference]: Start difference. First operand 248 states and 359 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:33,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:33,308 INFO L93 Difference]: Finished difference Result 474 states and 693 transitions. [2022-10-16 03:41:33,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:41:33,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 03:41:33,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:33,312 INFO L225 Difference]: With dead ends: 474 [2022-10-16 03:41:33,312 INFO L226 Difference]: Without dead ends: 474 [2022-10-16 03:41:33,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:41:33,317 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 357 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:33,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 537 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:41:33,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-10-16 03:41:33,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 376. [2022-10-16 03:41:33,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 374 states have (on average 1.4786096256684491) internal successors, (553), 375 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:33,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 553 transitions. [2022-10-16 03:41:33,336 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 553 transitions. Word has length 50 [2022-10-16 03:41:33,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:33,338 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 553 transitions. [2022-10-16 03:41:33,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:33,339 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 553 transitions. [2022-10-16 03:41:33,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 03:41:33,349 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:33,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:41:33,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 03:41:33,350 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:33,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:33,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2031133031, now seen corresponding path program 1 times [2022-10-16 03:41:33,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:33,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004139499] [2022-10-16 03:41:33,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:33,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:33,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:33,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004139499] [2022-10-16 03:41:33,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004139499] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:33,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:33,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:41:33,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066113658] [2022-10-16 03:41:33,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:33,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:41:33,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:33,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:41:33,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:41:33,649 INFO L87 Difference]: Start difference. First operand 376 states and 553 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:33,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:33,776 INFO L93 Difference]: Finished difference Result 565 states and 832 transitions. [2022-10-16 03:41:33,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:41:33,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 03:41:33,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:33,780 INFO L225 Difference]: With dead ends: 565 [2022-10-16 03:41:33,780 INFO L226 Difference]: Without dead ends: 565 [2022-10-16 03:41:33,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:41:33,782 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 356 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:33,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 571 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:41:33,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-10-16 03:41:33,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 467. [2022-10-16 03:41:33,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4881720430107528) internal successors, (692), 466 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:33,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 692 transitions. [2022-10-16 03:41:33,798 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 692 transitions. Word has length 50 [2022-10-16 03:41:33,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:33,799 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 692 transitions. [2022-10-16 03:41:33,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:33,799 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 692 transitions. [2022-10-16 03:41:33,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 03:41:33,800 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:33,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:41:33,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 03:41:33,801 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:33,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:33,802 INFO L85 PathProgramCache]: Analyzing trace with hash 222346276, now seen corresponding path program 1 times [2022-10-16 03:41:33,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:33,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174249685] [2022-10-16 03:41:33,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:33,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:33,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:33,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174249685] [2022-10-16 03:41:33,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174249685] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:33,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:33,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:41:33,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291012088] [2022-10-16 03:41:33,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:33,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:41:33,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:33,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:41:33,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:41:33,917 INFO L87 Difference]: Start difference. First operand 467 states and 692 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:34,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:34,063 INFO L93 Difference]: Finished difference Result 871 states and 1295 transitions. [2022-10-16 03:41:34,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:41:34,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-16 03:41:34,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:34,068 INFO L225 Difference]: With dead ends: 871 [2022-10-16 03:41:34,069 INFO L226 Difference]: Without dead ends: 871 [2022-10-16 03:41:34,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:41:34,070 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 552 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:34,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 133 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:41:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2022-10-16 03:41:34,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 866. [2022-10-16 03:41:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.4953703703703705) internal successors, (1292), 865 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:34,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1292 transitions. [2022-10-16 03:41:34,096 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1292 transitions. Word has length 51 [2022-10-16 03:41:34,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:34,096 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1292 transitions. [2022-10-16 03:41:34,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:34,097 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1292 transitions. [2022-10-16 03:41:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 03:41:34,098 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:34,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:41:34,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 03:41:34,099 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:34,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:34,099 INFO L85 PathProgramCache]: Analyzing trace with hash 323435980, now seen corresponding path program 1 times [2022-10-16 03:41:34,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:34,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311413379] [2022-10-16 03:41:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:34,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:34,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:34,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:34,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311413379] [2022-10-16 03:41:34,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311413379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:34,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:34,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:41:34,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226913375] [2022-10-16 03:41:34,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:34,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:41:34,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:34,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:41:34,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:41:34,207 INFO L87 Difference]: Start difference. First operand 866 states and 1292 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:34,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:34,298 INFO L93 Difference]: Finished difference Result 866 states and 1273 transitions. [2022-10-16 03:41:34,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:41:34,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-10-16 03:41:34,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:34,304 INFO L225 Difference]: With dead ends: 866 [2022-10-16 03:41:34,304 INFO L226 Difference]: Without dead ends: 866 [2022-10-16 03:41:34,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:41:34,306 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 361 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:34,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 88 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:41:34,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-10-16 03:41:34,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2022-10-16 03:41:34,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.4733796296296295) internal successors, (1273), 865 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:34,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1273 transitions. [2022-10-16 03:41:34,330 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1273 transitions. Word has length 52 [2022-10-16 03:41:34,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:34,330 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1273 transitions. [2022-10-16 03:41:34,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:34,331 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1273 transitions. [2022-10-16 03:41:34,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 03:41:34,332 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:34,332 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] [2022-10-16 03:41:34,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 03:41:34,332 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:34,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:34,333 INFO L85 PathProgramCache]: Analyzing trace with hash 549255064, now seen corresponding path program 1 times [2022-10-16 03:41:34,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:34,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213514527] [2022-10-16 03:41:34,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:34,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:34,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:34,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:34,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213514527] [2022-10-16 03:41:34,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213514527] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:34,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:34,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:41:34,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5965695] [2022-10-16 03:41:34,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:34,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:41:34,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:34,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:41:34,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:41:34,472 INFO L87 Difference]: Start difference. First operand 866 states and 1273 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:34,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:34,568 INFO L93 Difference]: Finished difference Result 866 states and 1254 transitions. [2022-10-16 03:41:34,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:41:34,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-16 03:41:34,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:34,573 INFO L225 Difference]: With dead ends: 866 [2022-10-16 03:41:34,573 INFO L226 Difference]: Without dead ends: 866 [2022-10-16 03:41:34,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:41:34,577 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 343 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:34,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 96 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:41:34,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-10-16 03:41:34,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2022-10-16 03:41:34,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.4513888888888888) internal successors, (1254), 865 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:34,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1254 transitions. [2022-10-16 03:41:34,601 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1254 transitions. Word has length 53 [2022-10-16 03:41:34,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:34,602 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1254 transitions. [2022-10-16 03:41:34,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1254 transitions. [2022-10-16 03:41:34,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 03:41:34,603 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:34,603 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] [2022-10-16 03:41:34,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 03:41:34,604 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:34,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:34,605 INFO L85 PathProgramCache]: Analyzing trace with hash -680909608, now seen corresponding path program 1 times [2022-10-16 03:41:34,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:34,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165620902] [2022-10-16 03:41:34,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:34,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:35,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:35,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165620902] [2022-10-16 03:41:35,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165620902] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:35,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:35,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-16 03:41:35,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905394978] [2022-10-16 03:41:35,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:35,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 03:41:35,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:35,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 03:41:35,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-16 03:41:35,231 INFO L87 Difference]: Start difference. First operand 866 states and 1254 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:35,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:35,884 INFO L93 Difference]: Finished difference Result 1678 states and 2420 transitions. [2022-10-16 03:41:35,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 03:41:35,886 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-10-16 03:41:35,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:35,895 INFO L225 Difference]: With dead ends: 1678 [2022-10-16 03:41:35,896 INFO L226 Difference]: Without dead ends: 1678 [2022-10-16 03:41:35,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-10-16 03:41:35,897 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 941 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:35,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 368 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 03:41:35,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2022-10-16 03:41:35,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 866. [2022-10-16 03:41:35,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.4444444444444444) internal successors, (1248), 865 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:35,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1248 transitions. [2022-10-16 03:41:35,930 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1248 transitions. Word has length 54 [2022-10-16 03:41:35,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:35,931 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1248 transitions. [2022-10-16 03:41:35,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:35,931 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1248 transitions. [2022-10-16 03:41:35,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 03:41:35,932 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:35,932 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] [2022-10-16 03:41:35,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 03:41:35,933 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:35,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:35,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1013391184, now seen corresponding path program 1 times [2022-10-16 03:41:35,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:35,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748319239] [2022-10-16 03:41:35,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:35,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:36,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:36,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:36,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748319239] [2022-10-16 03:41:36,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748319239] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:36,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:36,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 03:41:36,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141545925] [2022-10-16 03:41:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:36,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 03:41:36,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 03:41:36,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 03:41:36,227 INFO L87 Difference]: Start difference. First operand 866 states and 1248 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:36,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:36,603 INFO L93 Difference]: Finished difference Result 1627 states and 2362 transitions. [2022-10-16 03:41:36,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 03:41:36,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-10-16 03:41:36,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:36,613 INFO L225 Difference]: With dead ends: 1627 [2022-10-16 03:41:36,614 INFO L226 Difference]: Without dead ends: 1627 [2022-10-16 03:41:36,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-10-16 03:41:36,615 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 620 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:36,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 239 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 03:41:36,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-10-16 03:41:36,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 866. [2022-10-16 03:41:36,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.443287037037037) internal successors, (1247), 865 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:36,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1247 transitions. [2022-10-16 03:41:36,653 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1247 transitions. Word has length 54 [2022-10-16 03:41:36,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:36,654 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1247 transitions. [2022-10-16 03:41:36,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:36,654 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1247 transitions. [2022-10-16 03:41:36,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 03:41:36,655 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:36,656 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] [2022-10-16 03:41:36,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 03:41:36,656 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:36,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:36,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2026548830, now seen corresponding path program 1 times [2022-10-16 03:41:36,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:36,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659874995] [2022-10-16 03:41:36,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:36,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:37,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:37,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:37,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659874995] [2022-10-16 03:41:37,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659874995] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:37,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:37,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 03:41:37,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289634269] [2022-10-16 03:41:37,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:37,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 03:41:37,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:37,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 03:41:37,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 03:41:37,116 INFO L87 Difference]: Start difference. First operand 866 states and 1247 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:37,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:37,830 INFO L93 Difference]: Finished difference Result 1068 states and 1523 transitions. [2022-10-16 03:41:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 03:41:37,830 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-16 03:41:37,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:37,836 INFO L225 Difference]: With dead ends: 1068 [2022-10-16 03:41:37,836 INFO L226 Difference]: Without dead ends: 1068 [2022-10-16 03:41:37,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-10-16 03:41:37,838 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 879 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:37,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 392 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 03:41:37,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-10-16 03:41:37,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 866. [2022-10-16 03:41:37,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.4398148148148149) internal successors, (1244), 865 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:37,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1244 transitions. [2022-10-16 03:41:37,865 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1244 transitions. Word has length 55 [2022-10-16 03:41:37,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:37,865 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1244 transitions. [2022-10-16 03:41:37,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:37,866 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1244 transitions. [2022-10-16 03:41:37,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 03:41:37,867 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:37,867 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] [2022-10-16 03:41:37,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 03:41:37,868 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:37,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:37,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2014195720, now seen corresponding path program 1 times [2022-10-16 03:41:37,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:37,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148694057] [2022-10-16 03:41:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:37,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:38,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:38,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148694057] [2022-10-16 03:41:38,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148694057] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:38,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:38,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-10-16 03:41:38,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971587602] [2022-10-16 03:41:38,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:38,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 03:41:38,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:38,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 03:41:38,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-10-16 03:41:38,625 INFO L87 Difference]: Start difference. First operand 866 states and 1244 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:40,095 INFO L93 Difference]: Finished difference Result 1939 states and 2814 transitions. [2022-10-16 03:41:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 03:41:40,096 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 03:41:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:40,107 INFO L225 Difference]: With dead ends: 1939 [2022-10-16 03:41:40,107 INFO L226 Difference]: Without dead ends: 1939 [2022-10-16 03:41:40,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-10-16 03:41:40,108 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1156 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:40,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 987 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 03:41:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2022-10-16 03:41:40,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 833. [2022-10-16 03:41:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 831 states have (on average 1.4416365824308062) internal successors, (1198), 832 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:40,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1198 transitions. [2022-10-16 03:41:40,142 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1198 transitions. Word has length 56 [2022-10-16 03:41:40,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:40,142 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1198 transitions. [2022-10-16 03:41:40,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1198 transitions. [2022-10-16 03:41:40,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 03:41:40,144 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:40,144 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] [2022-10-16 03:41:40,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 03:41:40,144 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:40,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:40,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1797287643, now seen corresponding path program 1 times [2022-10-16 03:41:40,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:40,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205342084] [2022-10-16 03:41:40,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:40,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:40,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:40,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205342084] [2022-10-16 03:41:40,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205342084] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:40,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:40,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-16 03:41:40,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640919239] [2022-10-16 03:41:40,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:40,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 03:41:40,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:40,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 03:41:40,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-10-16 03:41:40,923 INFO L87 Difference]: Start difference. First operand 833 states and 1198 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:42,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:42,421 INFO L93 Difference]: Finished difference Result 2992 states and 4399 transitions. [2022-10-16 03:41:42,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 03:41:42,422 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 03:41:42,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:42,439 INFO L225 Difference]: With dead ends: 2992 [2022-10-16 03:41:42,440 INFO L226 Difference]: Without dead ends: 2992 [2022-10-16 03:41:42,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2022-10-16 03:41:42,441 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 740 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:42,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 1342 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 03:41:42,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2022-10-16 03:41:42,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 811. [2022-10-16 03:41:42,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 809 states have (on average 1.4449938195302843) internal successors, (1169), 810 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:42,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1169 transitions. [2022-10-16 03:41:42,495 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1169 transitions. Word has length 56 [2022-10-16 03:41:42,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:42,496 INFO L495 AbstractCegarLoop]: Abstraction has 811 states and 1169 transitions. [2022-10-16 03:41:42,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:42,496 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1169 transitions. [2022-10-16 03:41:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 03:41:42,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:42,497 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] [2022-10-16 03:41:42,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 03:41:42,498 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:42,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:42,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1026982439, now seen corresponding path program 1 times [2022-10-16 03:41:42,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:42,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413694996] [2022-10-16 03:41:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:42,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:43,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:43,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:43,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413694996] [2022-10-16 03:41:43,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413694996] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:43,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:43,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-10-16 03:41:43,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589090547] [2022-10-16 03:41:43,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:43,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 03:41:43,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:43,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 03:41:43,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-10-16 03:41:43,697 INFO L87 Difference]: Start difference. First operand 811 states and 1169 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:45,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:45,834 INFO L93 Difference]: Finished difference Result 3020 states and 4431 transitions. [2022-10-16 03:41:45,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 03:41:45,834 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 03:41:45,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:45,851 INFO L225 Difference]: With dead ends: 3020 [2022-10-16 03:41:45,851 INFO L226 Difference]: Without dead ends: 3020 [2022-10-16 03:41:45,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=282, Invalid=1278, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 03:41:45,853 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 756 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:45,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 2613 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 03:41:45,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2022-10-16 03:41:45,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 816. [2022-10-16 03:41:45,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 814 states have (on average 1.4434889434889435) internal successors, (1175), 815 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) [2022-10-16 03:41:45,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1175 transitions. [2022-10-16 03:41:45,901 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1175 transitions. Word has length 56 [2022-10-16 03:41:45,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:45,901 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1175 transitions. [2022-10-16 03:41:45,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:45,902 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1175 transitions. [2022-10-16 03:41:45,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 03:41:45,902 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:45,903 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] [2022-10-16 03:41:45,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 03:41:45,903 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:45,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1168073188, now seen corresponding path program 1 times [2022-10-16 03:41:45,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:45,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510908945] [2022-10-16 03:41:45,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:45,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:46,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:46,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:46,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510908945] [2022-10-16 03:41:46,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510908945] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:46,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:46,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-10-16 03:41:46,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309421516] [2022-10-16 03:41:46,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:46,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 03:41:46,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:46,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 03:41:46,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-10-16 03:41:46,622 INFO L87 Difference]: Start difference. First operand 816 states and 1175 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:48,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:48,070 INFO L93 Difference]: Finished difference Result 3008 states and 4415 transitions. [2022-10-16 03:41:48,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 03:41:48,071 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-16 03:41:48,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:48,086 INFO L225 Difference]: With dead ends: 3008 [2022-10-16 03:41:48,086 INFO L226 Difference]: Without dead ends: 3008 [2022-10-16 03:41:48,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-10-16 03:41:48,088 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 785 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:48,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1439 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 03:41:48,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-10-16 03:41:48,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 796. [2022-10-16 03:41:48,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 795 states have (on average 1.4477987421383647) internal successors, (1151), 795 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:48,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1151 transitions. [2022-10-16 03:41:48,139 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1151 transitions. Word has length 57 [2022-10-16 03:41:48,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:48,139 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 1151 transitions. [2022-10-16 03:41:48,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:48,140 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1151 transitions. [2022-10-16 03:41:48,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 03:41:48,141 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:48,141 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] [2022-10-16 03:41:48,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 03:41:48,142 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:48,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:48,143 INFO L85 PathProgramCache]: Analyzing trace with hash -773234718, now seen corresponding path program 1 times [2022-10-16 03:41:48,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:48,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087137958] [2022-10-16 03:41:48,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:48,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:48,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:48,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087137958] [2022-10-16 03:41:48,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087137958] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:48,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:48,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:41:48,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715952979] [2022-10-16 03:41:48,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:48,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:41:48,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:48,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:41:48,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:48,219 INFO L87 Difference]: Start difference. First operand 796 states and 1151 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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) [2022-10-16 03:41:48,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:48,242 INFO L93 Difference]: Finished difference Result 1402 states and 1993 transitions. [2022-10-16 03:41:48,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:41:48,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 [2022-10-16 03:41:48,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:48,250 INFO L225 Difference]: With dead ends: 1402 [2022-10-16 03:41:48,250 INFO L226 Difference]: Without dead ends: 1402 [2022-10-16 03:41:48,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:48,252 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 50 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:48,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 279 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:41:48,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2022-10-16 03:41:48,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1400. [2022-10-16 03:41:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 1.4238741958541816) internal successors, (1992), 1399 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:48,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1992 transitions. [2022-10-16 03:41:48,292 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1992 transitions. Word has length 76 [2022-10-16 03:41:48,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:48,292 INFO L495 AbstractCegarLoop]: Abstraction has 1400 states and 1992 transitions. [2022-10-16 03:41:48,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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) [2022-10-16 03:41:48,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1992 transitions. [2022-10-16 03:41:48,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 03:41:48,294 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:48,295 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, 1] [2022-10-16 03:41:48,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 03:41:48,295 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:48,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:48,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2013626748, now seen corresponding path program 1 times [2022-10-16 03:41:48,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:48,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124038943] [2022-10-16 03:41:48,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:48,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:48,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:48,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:48,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124038943] [2022-10-16 03:41:48,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124038943] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:48,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:48,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:41:48,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492057147] [2022-10-16 03:41:48,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:48,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:41:48,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:48,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:41:48,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:48,438 INFO L87 Difference]: Start difference. First operand 1400 states and 1992 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:48,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:48,460 INFO L93 Difference]: Finished difference Result 2240 states and 3147 transitions. [2022-10-16 03:41:48,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:41:48,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-10-16 03:41:48,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:48,471 INFO L225 Difference]: With dead ends: 2240 [2022-10-16 03:41:48,472 INFO L226 Difference]: Without dead ends: 2240 [2022-10-16 03:41:48,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:48,473 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 56 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:48,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 265 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:41:48,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2022-10-16 03:41:48,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2094. [2022-10-16 03:41:48,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2094 states, 2093 states have (on average 1.4085045389393216) internal successors, (2948), 2093 states have internal predecessors, (2948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2948 transitions. [2022-10-16 03:41:48,529 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2948 transitions. Word has length 77 [2022-10-16 03:41:48,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:48,530 INFO L495 AbstractCegarLoop]: Abstraction has 2094 states and 2948 transitions. [2022-10-16 03:41:48,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:48,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2948 transitions. [2022-10-16 03:41:48,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 03:41:48,531 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:48,531 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, 1, 1] [2022-10-16 03:41:48,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 03:41:48,533 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:48,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:48,534 INFO L85 PathProgramCache]: Analyzing trace with hash 31132410, now seen corresponding path program 1 times [2022-10-16 03:41:48,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:48,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208352958] [2022-10-16 03:41:48,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:48,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:48,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:48,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208352958] [2022-10-16 03:41:48,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208352958] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:48,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:48,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:41:48,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678253159] [2022-10-16 03:41:48,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:48,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:41:48,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:48,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:41:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:48,674 INFO L87 Difference]: Start difference. First operand 2094 states and 2948 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:48,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:48,699 INFO L93 Difference]: Finished difference Result 3898 states and 5385 transitions. [2022-10-16 03:41:48,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:41:48,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-16 03:41:48,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:48,735 INFO L225 Difference]: With dead ends: 3898 [2022-10-16 03:41:48,735 INFO L226 Difference]: Without dead ends: 3898 [2022-10-16 03:41:48,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:48,739 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:48,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 263 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:41:48,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3898 states. [2022-10-16 03:41:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3898 to 3680. [2022-10-16 03:41:48,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 1.3900516444686055) internal successors, (5114), 3679 states have internal predecessors, (5114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:48,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 5114 transitions. [2022-10-16 03:41:48,853 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 5114 transitions. Word has length 78 [2022-10-16 03:41:48,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:48,854 INFO L495 AbstractCegarLoop]: Abstraction has 3680 states and 5114 transitions. [2022-10-16 03:41:48,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:48,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 5114 transitions. [2022-10-16 03:41:48,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-16 03:41:48,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:48,855 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, 1, 1, 1] [2022-10-16 03:41:48,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 03:41:48,856 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:48,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:48,856 INFO L85 PathProgramCache]: Analyzing trace with hash 769651115, now seen corresponding path program 1 times [2022-10-16 03:41:48,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:48,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892130233] [2022-10-16 03:41:48,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:48,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:49,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:49,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:49,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892130233] [2022-10-16 03:41:49,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892130233] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:49,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:49,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:41:49,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108139161] [2022-10-16 03:41:49,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:49,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:41:49,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:49,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:41:49,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:49,003 INFO L87 Difference]: Start difference. First operand 3680 states and 5114 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:49,038 INFO L93 Difference]: Finished difference Result 6854 states and 9285 transitions. [2022-10-16 03:41:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:41:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-10-16 03:41:49,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:49,058 INFO L225 Difference]: With dead ends: 6854 [2022-10-16 03:41:49,059 INFO L226 Difference]: Without dead ends: 6854 [2022-10-16 03:41:49,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:49,060 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 42 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:49,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 260 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:41:49,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2022-10-16 03:41:49,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6420. [2022-10-16 03:41:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6420 states, 6419 states have (on average 1.3622059510827231) internal successors, (8744), 6419 states have internal predecessors, (8744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:49,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6420 states to 6420 states and 8744 transitions. [2022-10-16 03:41:49,218 INFO L78 Accepts]: Start accepts. Automaton has 6420 states and 8744 transitions. Word has length 79 [2022-10-16 03:41:49,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:49,219 INFO L495 AbstractCegarLoop]: Abstraction has 6420 states and 8744 transitions. [2022-10-16 03:41:49,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:49,219 INFO L276 IsEmpty]: Start isEmpty. Operand 6420 states and 8744 transitions. [2022-10-16 03:41:49,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 03:41:49,220 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:49,220 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, 1, 1, 1, 1] [2022-10-16 03:41:49,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 03:41:49,221 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:49,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:49,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1757386099, now seen corresponding path program 1 times [2022-10-16 03:41:49,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:49,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853118767] [2022-10-16 03:41:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:49,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:49,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:49,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:49,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853118767] [2022-10-16 03:41:49,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853118767] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:49,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:49,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:41:49,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492204903] [2022-10-16 03:41:49,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:49,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:41:49,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:49,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:41:49,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:41:49,530 INFO L87 Difference]: Start difference. First operand 6420 states and 8744 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:49,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:49,631 INFO L93 Difference]: Finished difference Result 10040 states and 13421 transitions. [2022-10-16 03:41:49,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 03:41:49,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-10-16 03:41:49,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:49,656 INFO L225 Difference]: With dead ends: 10040 [2022-10-16 03:41:49,656 INFO L226 Difference]: Without dead ends: 10040 [2022-10-16 03:41:49,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 03:41:49,658 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 194 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:49,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 627 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:41:49,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10040 states. [2022-10-16 03:41:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10040 to 6612. [2022-10-16 03:41:49,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6612 states, 6611 states have (on average 1.3395855392527605) internal successors, (8856), 6611 states have internal predecessors, (8856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:49,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6612 states to 6612 states and 8856 transitions. [2022-10-16 03:41:49,871 INFO L78 Accepts]: Start accepts. Automaton has 6612 states and 8856 transitions. Word has length 80 [2022-10-16 03:41:49,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:49,872 INFO L495 AbstractCegarLoop]: Abstraction has 6612 states and 8856 transitions. [2022-10-16 03:41:49,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:49,872 INFO L276 IsEmpty]: Start isEmpty. Operand 6612 states and 8856 transitions. [2022-10-16 03:41:49,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 03:41:49,873 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:49,873 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, 1, 1, 1, 1] [2022-10-16 03:41:49,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 03:41:49,874 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:49,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:49,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1852306095, now seen corresponding path program 1 times [2022-10-16 03:41:49,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:49,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961670335] [2022-10-16 03:41:49,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:49,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:49,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:49,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:49,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961670335] [2022-10-16 03:41:49,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961670335] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:41:49,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:41:49,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:41:49,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854470002] [2022-10-16 03:41:49,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:41:49,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:41:49,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:49,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:41:49,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:49,941 INFO L87 Difference]: Start difference. First operand 6612 states and 8856 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:49,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:41:49,980 INFO L93 Difference]: Finished difference Result 6862 states and 9045 transitions. [2022-10-16 03:41:49,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:41:49,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-10-16 03:41:49,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:41:49,996 INFO L225 Difference]: With dead ends: 6862 [2022-10-16 03:41:49,996 INFO L226 Difference]: Without dead ends: 6862 [2022-10-16 03:41:49,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:41:49,997 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 68 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:41:49,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 210 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:41:50,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6862 states. [2022-10-16 03:41:50,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6862 to 6860. [2022-10-16 03:41:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6860 states, 6859 states have (on average 1.3185595567867037) internal successors, (9044), 6859 states have internal predecessors, (9044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6860 states to 6860 states and 9044 transitions. [2022-10-16 03:41:50,147 INFO L78 Accepts]: Start accepts. Automaton has 6860 states and 9044 transitions. Word has length 80 [2022-10-16 03:41:50,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:41:50,147 INFO L495 AbstractCegarLoop]: Abstraction has 6860 states and 9044 transitions. [2022-10-16 03:41:50,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:41:50,148 INFO L276 IsEmpty]: Start isEmpty. Operand 6860 states and 9044 transitions. [2022-10-16 03:41:50,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 03:41:50,151 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:41:50,152 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:41:50,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 03:41:50,152 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:41:50,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:41:50,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1815794868, now seen corresponding path program 1 times [2022-10-16 03:41:50,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:41:50,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210506593] [2022-10-16 03:41:50,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:50,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:41:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:50,877 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:50,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:41:50,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210506593] [2022-10-16 03:41:50,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210506593] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 03:41:50,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187284205] [2022-10-16 03:41:50,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:41:50,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:41:50,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:41:50,882 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 03:41:50,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 03:41:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:41:51,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 03:41:51,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 03:41:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:51,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 03:41:54,026 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:41:54,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187284205] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 03:41:54,027 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 03:41:54,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2022-10-16 03:41:54,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943925593] [2022-10-16 03:41:54,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 03:41:54,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 03:41:54,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:41:54,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 03:41:54,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2022-10-16 03:41:54,031 INFO L87 Difference]: Start difference. First operand 6860 states and 9044 transitions. Second operand has 32 states, 32 states have (on average 8.59375) internal successors, (275), 31 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:42:42,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:42:42,960 INFO L93 Difference]: Finished difference Result 144788 states and 183697 transitions. [2022-10-16 03:42:42,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 331 states. [2022-10-16 03:42:42,961 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.59375) internal successors, (275), 31 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-10-16 03:42:42,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:42:43,403 INFO L225 Difference]: With dead ends: 144788 [2022-10-16 03:42:43,403 INFO L226 Difference]: Without dead ends: 144788 [2022-10-16 03:42:43,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 359 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52271 ImplicationChecksByTransitivity, 45.2s TimeCoverageRelationStatistics Valid=16661, Invalid=113299, Unknown=0, NotChecked=0, Total=129960 [2022-10-16 03:42:43,436 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 5987 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 2971 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5987 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 3621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 2971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-10-16 03:42:43,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5987 Valid, 2274 Invalid, 3621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 2971 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-10-16 03:42:43,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144788 states. [2022-10-16 03:42:45,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144788 to 35432. [2022-10-16 03:42:46,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35432 states, 35431 states have (on average 1.3087409330812) internal successors, (46370), 35431 states have internal predecessors, (46370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:42:46,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35432 states to 35432 states and 46370 transitions. [2022-10-16 03:42:46,326 INFO L78 Accepts]: Start accepts. Automaton has 35432 states and 46370 transitions. Word has length 101 [2022-10-16 03:42:46,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:42:46,329 INFO L495 AbstractCegarLoop]: Abstraction has 35432 states and 46370 transitions. [2022-10-16 03:42:46,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.59375) internal successors, (275), 31 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:42:46,330 INFO L276 IsEmpty]: Start isEmpty. Operand 35432 states and 46370 transitions. [2022-10-16 03:42:46,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 03:42:46,340 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:42:46,342 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:42:46,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 03:42:46,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 03:42:46,556 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:42:46,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:42:46,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1635937356, now seen corresponding path program 1 times [2022-10-16 03:42:46,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:42:46,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195872312] [2022-10-16 03:42:46,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:42:46,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:42:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:42:47,811 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:42:47,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:42:47,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195872312] [2022-10-16 03:42:47,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195872312] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 03:42:47,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998716303] [2022-10-16 03:42:47,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:42:47,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:42:47,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:42:47,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 03:42:47,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 03:42:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:42:47,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 03:42:48,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 03:42:48,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:42:48,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 03:42:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:42:50,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998716303] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 03:42:50,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 03:42:50,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 10] total 36 [2022-10-16 03:42:50,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687817669] [2022-10-16 03:42:50,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 03:42:50,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 03:42:50,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:42:50,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 03:42:50,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1154, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 03:42:50,664 INFO L87 Difference]: Start difference. First operand 35432 states and 46370 transitions. Second operand has 36 states, 36 states have (on average 7.944444444444445) internal successors, (286), 36 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)