/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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 03:17:28,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 03:17:28,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 03:17:28,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 03:17:28,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 03:17:28,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 03:17:28,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 03:17:28,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 03:17:28,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 03:17:28,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 03:17:28,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 03:17:28,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 03:17:28,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 03:17:28,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 03:17:28,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 03:17:28,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 03:17:28,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 03:17:28,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 03:17:28,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 03:17:28,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 03:17:28,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 03:17:28,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 03:17:28,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 03:17:28,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 03:17:28,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 03:17:28,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 03:17:28,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 03:17:28,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 03:17:28,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 03:17:28,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 03:17:28,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 03:17:28,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 03:17:28,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 03:17:28,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 03:17:28,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 03:17:28,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 03:17:28,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 03:17:28,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 03:17:28,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 03:17:28,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 03:17:28,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 03:17:28,650 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 03:17:28,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 03:17:28,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 03:17:28,679 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 03:17:28,679 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 03:17:28,680 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 03:17:28,680 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 03:17:28,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 03:17:28,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 03:17:28,682 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 03:17:28,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 03:17:28,682 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 03:17:28,683 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 03:17:28,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 03:17:28,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 03:17:28,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 03:17:28,683 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 03:17:28,684 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 03:17:28,684 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 03:17:28,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 03:17:28,684 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 03:17:28,685 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 03:17:28,685 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 03:17:28,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 03:17:28,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 03:17:28,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 03:17:28,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:17:28,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 03:17:28,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 03:17:28,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 03:17:28,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 03:17:28,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 03:17:29,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 03:17:29,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 03:17:29,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 03:17:29,154 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 03:17:29,155 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 03:17:29,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-10-16 03:17:29,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d510ba4f/6877ab468301438597c829662348f837/FLAGbbdf7991e [2022-10-16 03:17:30,094 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 03:17:30,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-10-16 03:17:30,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d510ba4f/6877ab468301438597c829662348f837/FLAGbbdf7991e [2022-10-16 03:17:30,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d510ba4f/6877ab468301438597c829662348f837 [2022-10-16 03:17:30,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 03:17:30,320 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 03:17:30,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 03:17:30,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 03:17:30,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 03:17:30,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:17:30" (1/1) ... [2022-10-16 03:17:30,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d879fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:30, skipping insertion in model container [2022-10-16 03:17:30,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:17:30" (1/1) ... [2022-10-16 03:17:30,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 03:17:30,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 03:17:30,819 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12834,12847] [2022-10-16 03:17:30,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:17:30,952 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 03:17:31,108 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12834,12847] [2022-10-16 03:17:31,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:17:31,214 INFO L208 MainTranslator]: Completed translation [2022-10-16 03:17:31,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31 WrapperNode [2022-10-16 03:17:31,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 03:17:31,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 03:17:31,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 03:17:31,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 03:17:31,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (1/1) ... [2022-10-16 03:17:31,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (1/1) ... [2022-10-16 03:17:31,360 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1292 [2022-10-16 03:17:31,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 03:17:31,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 03:17:31,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 03:17:31,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 03:17:31,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (1/1) ... [2022-10-16 03:17:31,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (1/1) ... [2022-10-16 03:17:31,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (1/1) ... [2022-10-16 03:17:31,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (1/1) ... [2022-10-16 03:17:31,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (1/1) ... [2022-10-16 03:17:31,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (1/1) ... [2022-10-16 03:17:31,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (1/1) ... [2022-10-16 03:17:31,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (1/1) ... [2022-10-16 03:17:31,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 03:17:31,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 03:17:31,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 03:17:31,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 03:17:31,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (1/1) ... [2022-10-16 03:17:31,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:17:31,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:17:31,556 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 03:17:31,583 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 03:17:31,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 03:17:31,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 03:17:31,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 03:17:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 03:17:31,874 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 03:17:31,877 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 03:17:33,006 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 03:17:33,018 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 03:17:33,019 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 03:17:33,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:17:33 BoogieIcfgContainer [2022-10-16 03:17:33,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 03:17:33,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 03:17:33,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 03:17:33,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 03:17:33,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:17:30" (1/3) ... [2022-10-16 03:17:33,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4360ff24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:17:33, skipping insertion in model container [2022-10-16 03:17:33,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:31" (2/3) ... [2022-10-16 03:17:33,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4360ff24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:17:33, skipping insertion in model container [2022-10-16 03:17:33,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:17:33" (3/3) ... [2022-10-16 03:17:33,032 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2022-10-16 03:17:33,053 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 03:17:33,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 03:17:33,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 03:17:33,124 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;@10872ccb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 03:17:33,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 03:17:33,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 320 states, 317 states have (on average 1.8075709779179812) internal successors, (573), 319 states have internal predecessors, (573), 0 states have call successors, (0), 0 states 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 03:17:33,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 03:17:33,144 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:33,145 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 03:17:33,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:33,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:33,152 INFO L85 PathProgramCache]: Analyzing trace with hash -486267883, now seen corresponding path program 1 times [2022-10-16 03:17:33,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:33,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834675625] [2022-10-16 03:17:33,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:33,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:33,760 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 03:17:33,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:33,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834675625] [2022-10-16 03:17:33,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834675625] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:33,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:33,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 03:17:33,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666373400] [2022-10-16 03:17:33,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:33,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:17:33,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:33,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:17:33,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:17:33,807 INFO L87 Difference]: Start difference. First operand has 320 states, 317 states have (on average 1.8075709779179812) internal successors, (573), 319 states have internal predecessors, (573), 0 states have call successors, (0), 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 26.0) internal successors, (52), 3 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 03:17:33,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:33,879 INFO L93 Difference]: Finished difference Result 319 states and 571 transitions. [2022-10-16 03:17:33,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:17:33,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 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 03:17:33,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:33,901 INFO L225 Difference]: With dead ends: 319 [2022-10-16 03:17:33,901 INFO L226 Difference]: Without dead ends: 316 [2022-10-16 03:17:33,904 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 03:17:33,908 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 520 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 570 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 03:17:33,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 570 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:17:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-10-16 03:17:33,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2022-10-16 03:17:33,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 1.6666666666666667) internal successors, (525), 315 states have internal predecessors, (525), 0 states have call successors, (0), 0 states 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 03:17:33,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 525 transitions. [2022-10-16 03:17:33,977 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 525 transitions. Word has length 52 [2022-10-16 03:17:33,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:33,978 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 525 transitions. [2022-10-16 03:17:33,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 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 03:17:33,979 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 525 transitions. [2022-10-16 03:17:33,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-16 03:17:33,991 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:33,991 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, 1, 1, 1, 1, 1, 1, 1, 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 03:17:33,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 03:17:33,992 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:33,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:33,993 INFO L85 PathProgramCache]: Analyzing trace with hash 304488522, now seen corresponding path program 1 times [2022-10-16 03:17:33,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:33,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343823873] [2022-10-16 03:17:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:33,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:34,326 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 03:17:34,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:34,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343823873] [2022-10-16 03:17:34,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343823873] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:34,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:34,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:17:34,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184420470] [2022-10-16 03:17:34,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:34,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:17:34,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:34,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:17:34,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:17:34,335 INFO L87 Difference]: Start difference. First operand 316 states and 525 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 03:17:34,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:34,421 INFO L93 Difference]: Finished difference Result 432 states and 715 transitions. [2022-10-16 03:17:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:17:34,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-10-16 03:17:34,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:34,426 INFO L225 Difference]: With dead ends: 432 [2022-10-16 03:17:34,427 INFO L226 Difference]: Without dead ends: 432 [2022-10-16 03:17:34,427 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 03:17:34,429 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 187 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:34,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1157 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:17:34,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-10-16 03:17:34,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 430. [2022-10-16 03:17:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 429 states have (on average 1.6643356643356644) internal successors, (714), 429 states have internal predecessors, (714), 0 states have call successors, (0), 0 states 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 03:17:34,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 714 transitions. [2022-10-16 03:17:34,459 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 714 transitions. Word has length 111 [2022-10-16 03:17:34,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:34,460 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 714 transitions. [2022-10-16 03:17:34,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 03:17:34,460 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 714 transitions. [2022-10-16 03:17:34,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 03:17:34,465 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:34,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:34,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 03:17:34,466 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:34,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:34,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1517208970, now seen corresponding path program 1 times [2022-10-16 03:17:34,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:34,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331976828] [2022-10-16 03:17:34,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:34,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:34,642 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 03:17:34,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:34,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331976828] [2022-10-16 03:17:34,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331976828] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:34,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:34,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:17:34,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702041191] [2022-10-16 03:17:34,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:34,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:17:34,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:34,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:17:34,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:17:34,651 INFO L87 Difference]: Start difference. First operand 430 states and 714 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 03:17:34,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:34,697 INFO L93 Difference]: Finished difference Result 533 states and 887 transitions. [2022-10-16 03:17:34,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:17:34,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-10-16 03:17:34,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:34,702 INFO L225 Difference]: With dead ends: 533 [2022-10-16 03:17:34,702 INFO L226 Difference]: Without dead ends: 533 [2022-10-16 03:17:34,703 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 03:17:34,705 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 196 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:34,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1173 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:17:34,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-10-16 03:17:34,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 531. [2022-10-16 03:17:34,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 530 states have (on average 1.6716981132075472) internal successors, (886), 530 states have internal predecessors, (886), 0 states have call successors, (0), 0 states 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 03:17:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 886 transitions. [2022-10-16 03:17:34,729 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 886 transitions. Word has length 114 [2022-10-16 03:17:34,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:34,730 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 886 transitions. [2022-10-16 03:17:34,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 03:17:34,731 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 886 transitions. [2022-10-16 03:17:34,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 03:17:34,733 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:34,733 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:34,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 03:17:34,734 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:34,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:34,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1179194652, now seen corresponding path program 1 times [2022-10-16 03:17:34,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:34,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052931224] [2022-10-16 03:17:34,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:34,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:34,916 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 03:17:34,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:34,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052931224] [2022-10-16 03:17:34,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052931224] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:34,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:34,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:17:34,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851395431] [2022-10-16 03:17:34,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:34,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:17:34,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:34,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:17:34,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:17:34,920 INFO L87 Difference]: Start difference. First operand 531 states and 886 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 03:17:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:34,959 INFO L93 Difference]: Finished difference Result 844 states and 1407 transitions. [2022-10-16 03:17:34,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:17:34,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-10-16 03:17:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:34,965 INFO L225 Difference]: With dead ends: 844 [2022-10-16 03:17:34,965 INFO L226 Difference]: Without dead ends: 844 [2022-10-16 03:17:34,966 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 03:17:34,967 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 189 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:34,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 1151 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:17:34,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-10-16 03:17:34,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 842. [2022-10-16 03:17:34,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.671819262782402) internal successors, (1406), 841 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states 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 03:17:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1406 transitions. [2022-10-16 03:17:34,994 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1406 transitions. Word has length 114 [2022-10-16 03:17:34,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:34,994 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1406 transitions. [2022-10-16 03:17:34,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 03:17:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1406 transitions. [2022-10-16 03:17:34,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-16 03:17:34,997 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:34,997 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:34,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 03:17:34,998 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:34,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:34,998 INFO L85 PathProgramCache]: Analyzing trace with hash -236553538, now seen corresponding path program 1 times [2022-10-16 03:17:34,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:34,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054185734] [2022-10-16 03:17:34,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:34,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:35,145 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 03:17:35,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:35,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054185734] [2022-10-16 03:17:35,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054185734] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:35,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:35,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:17:35,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328934716] [2022-10-16 03:17:35,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:35,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:17:35,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:35,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:17:35,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:17:35,150 INFO L87 Difference]: Start difference. First operand 842 states and 1406 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 03:17:35,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:35,183 INFO L93 Difference]: Finished difference Result 1122 states and 1873 transitions. [2022-10-16 03:17:35,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:17:35,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-10-16 03:17:35,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:35,191 INFO L225 Difference]: With dead ends: 1122 [2022-10-16 03:17:35,192 INFO L226 Difference]: Without dead ends: 1122 [2022-10-16 03:17:35,192 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 03:17:35,196 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 190 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:35,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1146 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:17:35,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-10-16 03:17:35,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1120. [2022-10-16 03:17:35,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 1.6729222520107239) internal successors, (1872), 1119 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 03:17:35,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1872 transitions. [2022-10-16 03:17:35,249 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1872 transitions. Word has length 117 [2022-10-16 03:17:35,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:35,250 INFO L495 AbstractCegarLoop]: Abstraction has 1120 states and 1872 transitions. [2022-10-16 03:17:35,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 03:17:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1872 transitions. [2022-10-16 03:17:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-16 03:17:35,252 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:35,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:35,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 03:17:35,253 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:35,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:35,254 INFO L85 PathProgramCache]: Analyzing trace with hash 2147173936, now seen corresponding path program 1 times [2022-10-16 03:17:35,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:35,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577930857] [2022-10-16 03:17:35,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:35,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:35,415 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 03:17:35,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:35,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577930857] [2022-10-16 03:17:35,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577930857] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:35,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:35,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:17:35,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847904024] [2022-10-16 03:17:35,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:35,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:17:35,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:35,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:17:35,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:17:35,420 INFO L87 Difference]: Start difference. First operand 1120 states and 1872 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 03:17:35,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:35,460 INFO L93 Difference]: Finished difference Result 1950 states and 3244 transitions. [2022-10-16 03:17:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:17:35,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-10-16 03:17:35,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:35,472 INFO L225 Difference]: With dead ends: 1950 [2022-10-16 03:17:35,473 INFO L226 Difference]: Without dead ends: 1950 [2022-10-16 03:17:35,473 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 03:17:35,478 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 183 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:35,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1125 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:17:35,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2022-10-16 03:17:35,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1948. [2022-10-16 03:17:35,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1947 states have (on average 1.6656394453004622) internal successors, (3243), 1947 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states 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 03:17:35,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 3243 transitions. [2022-10-16 03:17:35,560 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 3243 transitions. Word has length 117 [2022-10-16 03:17:35,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:35,561 INFO L495 AbstractCegarLoop]: Abstraction has 1948 states and 3243 transitions. [2022-10-16 03:17:35,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 03:17:35,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 3243 transitions. [2022-10-16 03:17:35,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 03:17:35,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:35,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:35,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 03:17:35,568 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:35,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:35,569 INFO L85 PathProgramCache]: Analyzing trace with hash 866565200, now seen corresponding path program 1 times [2022-10-16 03:17:35,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:35,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121239866] [2022-10-16 03:17:35,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:35,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:35,727 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 03:17:35,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:35,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121239866] [2022-10-16 03:17:35,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121239866] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:35,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:35,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:17:35,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637096837] [2022-10-16 03:17:35,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:35,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:17:35,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:35,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:17:35,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:17:35,731 INFO L87 Difference]: Start difference. First operand 1948 states and 3243 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 03:17:35,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:35,799 INFO L93 Difference]: Finished difference Result 2643 states and 4399 transitions. [2022-10-16 03:17:35,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:17:35,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-10-16 03:17:35,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:35,814 INFO L225 Difference]: With dead ends: 2643 [2022-10-16 03:17:35,815 INFO L226 Difference]: Without dead ends: 2643 [2022-10-16 03:17:35,815 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 03:17:35,819 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 184 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:35,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1119 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:17:35,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2643 states. [2022-10-16 03:17:35,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 2641. [2022-10-16 03:17:35,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2641 states, 2640 states have (on average 1.665909090909091) internal successors, (4398), 2640 states have internal predecessors, (4398), 0 states have call successors, (0), 0 states 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 03:17:35,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2641 states to 2641 states and 4398 transitions. [2022-10-16 03:17:35,898 INFO L78 Accepts]: Start accepts. Automaton has 2641 states and 4398 transitions. Word has length 120 [2022-10-16 03:17:35,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:35,898 INFO L495 AbstractCegarLoop]: Abstraction has 2641 states and 4398 transitions. [2022-10-16 03:17:35,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 03:17:35,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2641 states and 4398 transitions. [2022-10-16 03:17:35,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 03:17:35,901 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:35,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:35,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 03:17:35,902 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:35,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:35,903 INFO L85 PathProgramCache]: Analyzing trace with hash 83170558, now seen corresponding path program 1 times [2022-10-16 03:17:35,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:35,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373476773] [2022-10-16 03:17:35,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:35,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:36,110 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 03:17:36,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:36,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373476773] [2022-10-16 03:17:36,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373476773] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:36,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:36,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:17:36,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542978187] [2022-10-16 03:17:36,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:36,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:17:36,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:36,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:17:36,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:17:36,114 INFO L87 Difference]: Start difference. First operand 2641 states and 4398 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 03:17:36,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:36,165 INFO L93 Difference]: Finished difference Result 4812 states and 7945 transitions. [2022-10-16 03:17:36,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:17:36,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-10-16 03:17:36,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:36,192 INFO L225 Difference]: With dead ends: 4812 [2022-10-16 03:17:36,193 INFO L226 Difference]: Without dead ends: 4812 [2022-10-16 03:17:36,193 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 03:17:36,194 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 177 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:36,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1022 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:17:36,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2022-10-16 03:17:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4810. [2022-10-16 03:17:36,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.651902682470368) internal successors, (7944), 4809 states have internal predecessors, (7944), 0 states have call successors, (0), 0 states 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 03:17:36,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 7944 transitions. [2022-10-16 03:17:36,370 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 7944 transitions. Word has length 120 [2022-10-16 03:17:36,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:36,371 INFO L495 AbstractCegarLoop]: Abstraction has 4810 states and 7944 transitions. [2022-10-16 03:17:36,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 03:17:36,372 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 7944 transitions. [2022-10-16 03:17:36,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-10-16 03:17:36,375 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:36,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:36,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 03:17:36,377 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:36,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:36,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1139352598, now seen corresponding path program 1 times [2022-10-16 03:17:36,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:36,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469777625] [2022-10-16 03:17:36,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:36,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:36,738 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 03:17:36,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:36,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469777625] [2022-10-16 03:17:36,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469777625] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:36,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:36,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:17:36,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316716597] [2022-10-16 03:17:36,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:36,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:17:36,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:36,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:17:36,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:17:36,744 INFO L87 Difference]: Start difference. First operand 4810 states and 7944 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 03:17:37,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:37,252 INFO L93 Difference]: Finished difference Result 25188 states and 41716 transitions. [2022-10-16 03:17:37,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 03:17:37,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2022-10-16 03:17:37,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:37,385 INFO L225 Difference]: With dead ends: 25188 [2022-10-16 03:17:37,385 INFO L226 Difference]: Without dead ends: 25188 [2022-10-16 03:17:37,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 03:17:37,389 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 2298 mSDsluCounter, 3058 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:37,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 3572 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 03:17:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25188 states. [2022-10-16 03:17:37,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25188 to 9236. [2022-10-16 03:17:37,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9236 states, 9235 states have (on average 1.6472116946399566) internal successors, (15212), 9235 states have internal predecessors, (15212), 0 states have call successors, (0), 0 states 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 03:17:37,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9236 states to 9236 states and 15212 transitions. [2022-10-16 03:17:37,908 INFO L78 Accepts]: Start accepts. Automaton has 9236 states and 15212 transitions. Word has length 123 [2022-10-16 03:17:37,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:37,909 INFO L495 AbstractCegarLoop]: Abstraction has 9236 states and 15212 transitions. [2022-10-16 03:17:37,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 03:17:37,910 INFO L276 IsEmpty]: Start isEmpty. Operand 9236 states and 15212 transitions. [2022-10-16 03:17:37,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-16 03:17:37,912 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:37,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:37,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 03:17:37,913 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:37,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:37,914 INFO L85 PathProgramCache]: Analyzing trace with hash 893130139, now seen corresponding path program 1 times [2022-10-16 03:17:37,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:37,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133622425] [2022-10-16 03:17:37,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:37,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:38,192 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 03:17:38,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:38,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133622425] [2022-10-16 03:17:38,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133622425] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:38,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:38,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:17:38,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169590528] [2022-10-16 03:17:38,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:38,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:17:38,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:38,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:17:38,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:17:38,196 INFO L87 Difference]: Start difference. First operand 9236 states and 15212 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 03:17:38,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:38,389 INFO L93 Difference]: Finished difference Result 21020 states and 34787 transitions. [2022-10-16 03:17:38,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:17:38,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2022-10-16 03:17:38,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:38,448 INFO L225 Difference]: With dead ends: 21020 [2022-10-16 03:17:38,448 INFO L226 Difference]: Without dead ends: 21020 [2022-10-16 03:17:38,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:17:38,449 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 624 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:38,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1513 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:17:38,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21020 states. [2022-10-16 03:17:38,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21020 to 15091. [2022-10-16 03:17:38,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15091 states, 15090 states have (on average 1.6485089463220677) internal successors, (24876), 15090 states have internal predecessors, (24876), 0 states have call successors, (0), 0 states 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 03:17:39,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15091 states to 15091 states and 24876 transitions. [2022-10-16 03:17:39,034 INFO L78 Accepts]: Start accepts. Automaton has 15091 states and 24876 transitions. Word has length 124 [2022-10-16 03:17:39,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:39,035 INFO L495 AbstractCegarLoop]: Abstraction has 15091 states and 24876 transitions. [2022-10-16 03:17:39,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 03:17:39,035 INFO L276 IsEmpty]: Start isEmpty. Operand 15091 states and 24876 transitions. [2022-10-16 03:17:39,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-16 03:17:39,037 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:39,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:39,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 03:17:39,037 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:39,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:39,038 INFO L85 PathProgramCache]: Analyzing trace with hash -485089184, now seen corresponding path program 1 times [2022-10-16 03:17:39,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:39,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15816998] [2022-10-16 03:17:39,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:39,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:39,219 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 03:17:39,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:39,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15816998] [2022-10-16 03:17:39,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15816998] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:39,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:39,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:17:39,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238554250] [2022-10-16 03:17:39,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:39,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:17:39,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:39,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:17:39,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:17:39,222 INFO L87 Difference]: Start difference. First operand 15091 states and 24876 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 03:17:39,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:39,373 INFO L93 Difference]: Finished difference Result 20733 states and 34120 transitions. [2022-10-16 03:17:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:17:39,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2022-10-16 03:17:39,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:39,429 INFO L225 Difference]: With dead ends: 20733 [2022-10-16 03:17:39,429 INFO L226 Difference]: Without dead ends: 20733 [2022-10-16 03:17:39,430 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 03:17:39,431 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 178 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:39,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1103 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:17:39,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20733 states. [2022-10-16 03:17:40,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20733 to 20731. [2022-10-16 03:17:40,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20731 states, 20730 states have (on average 1.645875542691751) internal successors, (34119), 20730 states have internal predecessors, (34119), 0 states have call successors, (0), 0 states 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 03:17:40,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20731 states to 20731 states and 34119 transitions. [2022-10-16 03:17:40,247 INFO L78 Accepts]: Start accepts. Automaton has 20731 states and 34119 transitions. Word has length 124 [2022-10-16 03:17:40,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:40,248 INFO L495 AbstractCegarLoop]: Abstraction has 20731 states and 34119 transitions. [2022-10-16 03:17:40,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 03:17:40,248 INFO L276 IsEmpty]: Start isEmpty. Operand 20731 states and 34119 transitions. [2022-10-16 03:17:40,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-10-16 03:17:40,250 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:40,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:40,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 03:17:40,251 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:40,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:40,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1854726525, now seen corresponding path program 1 times [2022-10-16 03:17:40,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:40,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602260918] [2022-10-16 03:17:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:40,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:40,531 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 03:17:40,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:40,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602260918] [2022-10-16 03:17:40,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602260918] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:40,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:40,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:17:40,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879809585] [2022-10-16 03:17:40,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:40,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:17:40,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:40,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:17:40,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:17:40,535 INFO L87 Difference]: Start difference. First operand 20731 states and 34119 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states 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 03:17:40,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:40,945 INFO L93 Difference]: Finished difference Result 46943 states and 77270 transitions. [2022-10-16 03:17:40,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:17:40,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2022-10-16 03:17:40,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:41,070 INFO L225 Difference]: With dead ends: 46943 [2022-10-16 03:17:41,071 INFO L226 Difference]: Without dead ends: 46943 [2022-10-16 03:17:41,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:17:41,072 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 622 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:41,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1617 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:17:41,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46943 states. [2022-10-16 03:17:41,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46943 to 33748. [2022-10-16 03:17:41,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33748 states, 33747 states have (on average 1.6413014490176905) internal successors, (55389), 33747 states have internal predecessors, (55389), 0 states have call successors, (0), 0 states 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 03:17:42,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33748 states to 33748 states and 55389 transitions. [2022-10-16 03:17:42,055 INFO L78 Accepts]: Start accepts. Automaton has 33748 states and 55389 transitions. Word has length 125 [2022-10-16 03:17:42,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:42,055 INFO L495 AbstractCegarLoop]: Abstraction has 33748 states and 55389 transitions. [2022-10-16 03:17:42,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states 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 03:17:42,056 INFO L276 IsEmpty]: Start isEmpty. Operand 33748 states and 55389 transitions. [2022-10-16 03:17:42,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-16 03:17:42,057 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:42,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:42,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 03:17:42,058 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:42,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:42,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1604001442, now seen corresponding path program 1 times [2022-10-16 03:17:42,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:42,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086405244] [2022-10-16 03:17:42,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:42,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:42,229 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 03:17:42,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:42,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086405244] [2022-10-16 03:17:42,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086405244] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:42,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:42,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:17:42,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418875427] [2022-10-16 03:17:42,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:42,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:17:42,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:42,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:17:42,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:17:42,232 INFO L87 Difference]: Start difference. First operand 33748 states and 55389 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 03:17:42,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:42,767 INFO L93 Difference]: Finished difference Result 75820 states and 124454 transitions. [2022-10-16 03:17:42,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:17:42,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-10-16 03:17:42,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:43,266 INFO L225 Difference]: With dead ends: 75820 [2022-10-16 03:17:43,267 INFO L226 Difference]: Without dead ends: 75820 [2022-10-16 03:17:43,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:17:43,268 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 620 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:43,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 1658 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:17:43,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75820 states. [2022-10-16 03:17:44,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75820 to 54641. [2022-10-16 03:17:44,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54641 states, 54640 states have (on average 1.6366581259150805) internal successors, (89427), 54640 states have internal predecessors, (89427), 0 states have call successors, (0), 0 states 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 03:17:44,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54641 states to 54641 states and 89427 transitions. [2022-10-16 03:17:44,748 INFO L78 Accepts]: Start accepts. Automaton has 54641 states and 89427 transitions. Word has length 126 [2022-10-16 03:17:44,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:44,749 INFO L495 AbstractCegarLoop]: Abstraction has 54641 states and 89427 transitions. [2022-10-16 03:17:44,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 03:17:44,750 INFO L276 IsEmpty]: Start isEmpty. Operand 54641 states and 89427 transitions. [2022-10-16 03:17:44,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 03:17:44,751 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:44,752 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:44,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 03:17:44,752 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:44,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:44,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1868950812, now seen corresponding path program 1 times [2022-10-16 03:17:44,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:44,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483070565] [2022-10-16 03:17:44,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:44,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:44,945 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 03:17:44,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:44,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483070565] [2022-10-16 03:17:44,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483070565] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:44,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:44,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:17:44,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921269950] [2022-10-16 03:17:44,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:44,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:17:44,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:44,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:17:44,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:17:44,949 INFO L87 Difference]: Start difference. First operand 54641 states and 89427 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states 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 03:17:45,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:45,851 INFO L93 Difference]: Finished difference Result 120653 states and 197482 transitions. [2022-10-16 03:17:45,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:17:45,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2022-10-16 03:17:45,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:46,157 INFO L225 Difference]: With dead ends: 120653 [2022-10-16 03:17:46,158 INFO L226 Difference]: Without dead ends: 120653 [2022-10-16 03:17:46,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:17:46,159 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 618 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:46,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1722 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:17:46,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120653 states. [2022-10-16 03:17:48,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120653 to 87422. [2022-10-16 03:17:48,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87422 states, 87421 states have (on average 1.6320220541975041) internal successors, (142673), 87421 states have internal predecessors, (142673), 0 states have call successors, (0), 0 states 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 03:17:49,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87422 states to 87422 states and 142673 transitions. [2022-10-16 03:17:49,365 INFO L78 Accepts]: Start accepts. Automaton has 87422 states and 142673 transitions. Word has length 127 [2022-10-16 03:17:49,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:49,371 INFO L495 AbstractCegarLoop]: Abstraction has 87422 states and 142673 transitions. [2022-10-16 03:17:49,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states 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 03:17:49,372 INFO L276 IsEmpty]: Start isEmpty. Operand 87422 states and 142673 transitions. [2022-10-16 03:17:49,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-10-16 03:17:49,373 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:49,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:49,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 03:17:49,376 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:49,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:49,377 INFO L85 PathProgramCache]: Analyzing trace with hash 2012261173, now seen corresponding path program 1 times [2022-10-16 03:17:49,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:49,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054736681] [2022-10-16 03:17:49,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:49,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:49,909 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 03:17:49,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:49,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054736681] [2022-10-16 03:17:49,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054736681] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:49,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:49,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:17:49,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876948284] [2022-10-16 03:17:49,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:49,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:17:49,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:49,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:17:49,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:17:49,913 INFO L87 Difference]: Start difference. First operand 87422 states and 142673 transitions. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 03:17:50,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:50,374 INFO L93 Difference]: Finished difference Result 87424 states and 142049 transitions. [2022-10-16 03:17:50,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:17:50,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2022-10-16 03:17:50,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:50,553 INFO L225 Difference]: With dead ends: 87424 [2022-10-16 03:17:50,554 INFO L226 Difference]: Without dead ends: 87424 [2022-10-16 03:17:50,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 03:17:50,555 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 483 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:50,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1992 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:17:51,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87424 states. [2022-10-16 03:17:52,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87424 to 87422. [2022-10-16 03:17:52,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87422 states, 87421 states have (on average 1.6248727422472862) internal successors, (142048), 87421 states have internal predecessors, (142048), 0 states have call successors, (0), 0 states 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 03:17:52,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87422 states to 87422 states and 142048 transitions. [2022-10-16 03:17:52,969 INFO L78 Accepts]: Start accepts. Automaton has 87422 states and 142048 transitions. Word has length 129 [2022-10-16 03:17:52,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:52,970 INFO L495 AbstractCegarLoop]: Abstraction has 87422 states and 142048 transitions. [2022-10-16 03:17:52,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 03:17:52,970 INFO L276 IsEmpty]: Start isEmpty. Operand 87422 states and 142048 transitions. [2022-10-16 03:17:52,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-16 03:17:52,972 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:52,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:52,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 03:17:52,973 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:52,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:52,975 INFO L85 PathProgramCache]: Analyzing trace with hash 365685076, now seen corresponding path program 1 times [2022-10-16 03:17:52,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:52,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21453903] [2022-10-16 03:17:52,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:52,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:53,438 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 03:17:53,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:53,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21453903] [2022-10-16 03:17:53,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21453903] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:53,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:53,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:17:53,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466740685] [2022-10-16 03:17:53,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:53,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:17:53,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:53,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:17:53,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:17:53,444 INFO L87 Difference]: Start difference. First operand 87422 states and 142048 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 03:17:54,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:17:54,674 INFO L93 Difference]: Finished difference Result 168318 states and 271950 transitions. [2022-10-16 03:17:54,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:17:54,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-10-16 03:17:54,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:17:54,969 INFO L225 Difference]: With dead ends: 168318 [2022-10-16 03:17:54,970 INFO L226 Difference]: Without dead ends: 168318 [2022-10-16 03:17:54,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 03:17:54,971 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 301 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:17:54,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 2507 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:17:55,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168318 states. [2022-10-16 03:17:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168318 to 168316. [2022-10-16 03:17:57,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168316 states, 168315 states have (on average 1.615714582776342) internal successors, (271949), 168315 states have internal predecessors, (271949), 0 states have call successors, (0), 0 states 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 03:17:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168316 states to 168316 states and 271949 transitions. [2022-10-16 03:17:58,576 INFO L78 Accepts]: Start accepts. Automaton has 168316 states and 271949 transitions. Word has length 132 [2022-10-16 03:17:58,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:17:58,577 INFO L495 AbstractCegarLoop]: Abstraction has 168316 states and 271949 transitions. [2022-10-16 03:17:58,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 03:17:58,578 INFO L276 IsEmpty]: Start isEmpty. Operand 168316 states and 271949 transitions. [2022-10-16 03:17:58,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-16 03:17:58,579 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:17:58,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:17:58,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 03:17:58,580 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:17:58,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:17:58,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1550573646, now seen corresponding path program 1 times [2022-10-16 03:17:58,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:17:58,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947171713] [2022-10-16 03:17:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:17:58,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:17:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:17:59,235 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 03:17:59,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:17:59,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947171713] [2022-10-16 03:17:59,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947171713] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:17:59,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:17:59,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:17:59,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714639617] [2022-10-16 03:17:59,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:17:59,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:17:59,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:17:59,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:17:59,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:17:59,239 INFO L87 Difference]: Start difference. First operand 168316 states and 271949 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 03:18:00,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:18:00,561 INFO L93 Difference]: Finished difference Result 320231 states and 513669 transitions. [2022-10-16 03:18:00,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:18:00,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-10-16 03:18:00,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:18:01,648 INFO L225 Difference]: With dead ends: 320231 [2022-10-16 03:18:01,649 INFO L226 Difference]: Without dead ends: 320231 [2022-10-16 03:18:01,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:18:01,650 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 400 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:18:01,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 2332 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:18:01,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320231 states. [2022-10-16 03:18:04,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320231 to 172188. [2022-10-16 03:18:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172188 states, 172187 states have (on average 1.6017120920859298) internal successors, (275794), 172187 states have internal predecessors, (275794), 0 states have call successors, (0), 0 states 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 03:18:05,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172188 states to 172188 states and 275794 transitions. [2022-10-16 03:18:05,531 INFO L78 Accepts]: Start accepts. Automaton has 172188 states and 275794 transitions. Word has length 133 [2022-10-16 03:18:05,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:18:05,531 INFO L495 AbstractCegarLoop]: Abstraction has 172188 states and 275794 transitions. [2022-10-16 03:18:05,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 03:18:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 172188 states and 275794 transitions. [2022-10-16 03:18:05,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-16 03:18:05,541 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:18:05,542 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:18:05,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 03:18:05,542 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:18:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:18:05,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2098432369, now seen corresponding path program 1 times [2022-10-16 03:18:05,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:18:05,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180259408] [2022-10-16 03:18:05,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:18:05,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:18:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:18:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 03:18:05,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:18:05,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180259408] [2022-10-16 03:18:05,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180259408] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:18:05,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:18:05,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:18:05,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717571524] [2022-10-16 03:18:05,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:18:05,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:18:05,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:18:05,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:18:05,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:18:05,847 INFO L87 Difference]: Start difference. First operand 172188 states and 275794 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 03:18:08,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:18:08,313 INFO L93 Difference]: Finished difference Result 393562 states and 631546 transitions. [2022-10-16 03:18:08,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:18:08,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 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 163 [2022-10-16 03:18:08,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:18:09,192 INFO L225 Difference]: With dead ends: 393562 [2022-10-16 03:18:09,193 INFO L226 Difference]: Without dead ends: 393562 [2022-10-16 03:18:09,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 03:18:09,194 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 1391 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 03:18:09,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 2647 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 03:18:09,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393562 states. [2022-10-16 03:18:14,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393562 to 276620. [2022-10-16 03:18:14,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276620 states, 276619 states have (on average 1.6000925460651654) internal successors, (442616), 276619 states have internal predecessors, (442616), 0 states have call successors, (0), 0 states 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 03:18:16,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276620 states to 276620 states and 442616 transitions. [2022-10-16 03:18:16,165 INFO L78 Accepts]: Start accepts. Automaton has 276620 states and 442616 transitions. Word has length 163 [2022-10-16 03:18:16,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:18:16,165 INFO L495 AbstractCegarLoop]: Abstraction has 276620 states and 442616 transitions. [2022-10-16 03:18:16,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 03:18:16,166 INFO L276 IsEmpty]: Start isEmpty. Operand 276620 states and 442616 transitions. [2022-10-16 03:18:16,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-16 03:18:16,197 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:18:16,197 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:18:16,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 03:18:16,198 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:18:16,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:18:16,198 INFO L85 PathProgramCache]: Analyzing trace with hash -903642171, now seen corresponding path program 1 times [2022-10-16 03:18:16,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:18:16,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169071945] [2022-10-16 03:18:16,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:18:16,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:18:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:18:16,521 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 03:18:16,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:18:16,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169071945] [2022-10-16 03:18:16,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169071945] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:18:16,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:18:16,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:18:16,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914814847] [2022-10-16 03:18:16,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:18:16,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:18:16,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:18:16,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:18:16,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:18:16,524 INFO L87 Difference]: Start difference. First operand 276620 states and 442616 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 03:18:18,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:18:19,000 INFO L93 Difference]: Finished difference Result 441690 states and 709174 transitions. [2022-10-16 03:18:19,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:18:19,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 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 163 [2022-10-16 03:18:19,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:18:19,802 INFO L225 Difference]: With dead ends: 441690 [2022-10-16 03:18:19,803 INFO L226 Difference]: Without dead ends: 441690 [2022-10-16 03:18:19,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 03:18:19,804 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 1328 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:18:19,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 2648 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:18:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441690 states. [2022-10-16 03:18:25,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441690 to 373886. [2022-10-16 03:18:26,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373886 states, 373885 states have (on average 1.6012249755940997) internal successors, (598674), 373885 states have internal predecessors, (598674), 0 states have call successors, (0), 0 states 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 03:18:29,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373886 states to 373886 states and 598674 transitions. [2022-10-16 03:18:29,214 INFO L78 Accepts]: Start accepts. Automaton has 373886 states and 598674 transitions. Word has length 163 [2022-10-16 03:18:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:18:29,215 INFO L495 AbstractCegarLoop]: Abstraction has 373886 states and 598674 transitions. [2022-10-16 03:18:29,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 03:18:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 373886 states and 598674 transitions. [2022-10-16 03:18:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-16 03:18:29,248 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:18:29,248 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:18:29,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 03:18:29,249 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:18:29,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:18:29,252 INFO L85 PathProgramCache]: Analyzing trace with hash -220690461, now seen corresponding path program 1 times [2022-10-16 03:18:29,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:18:29,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732803363] [2022-10-16 03:18:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:18:29,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:18:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:18:29,683 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 03:18:29,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:18:29,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732803363] [2022-10-16 03:18:29,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732803363] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:18:29,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:18:29,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:18:29,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446703032] [2022-10-16 03:18:29,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:18:29,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:18:29,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:18:29,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:18:29,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:18:29,686 INFO L87 Difference]: Start difference. First operand 373886 states and 598674 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 03:18:33,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:18:33,527 INFO L93 Difference]: Finished difference Result 471710 states and 757514 transitions. [2022-10-16 03:18:33,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:18:33,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 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 163 [2022-10-16 03:18:33,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:18:35,223 INFO L225 Difference]: With dead ends: 471710 [2022-10-16 03:18:35,224 INFO L226 Difference]: Without dead ends: 471710 [2022-10-16 03:18:35,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 03:18:35,225 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 1239 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:18:35,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 2780 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:18:35,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471710 states. [2022-10-16 03:18:41,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471710 to 433102. [2022-10-16 03:18:42,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433102 states, 433101 states have (on average 1.6028178184765216) internal successors, (694182), 433101 states have internal predecessors, (694182), 0 states have call successors, (0), 0 states 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 03:18:45,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433102 states to 433102 states and 694182 transitions. [2022-10-16 03:18:45,012 INFO L78 Accepts]: Start accepts. Automaton has 433102 states and 694182 transitions. Word has length 163 [2022-10-16 03:18:45,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:18:45,013 INFO L495 AbstractCegarLoop]: Abstraction has 433102 states and 694182 transitions. [2022-10-16 03:18:45,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 03:18:45,013 INFO L276 IsEmpty]: Start isEmpty. Operand 433102 states and 694182 transitions. [2022-10-16 03:18:45,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-16 03:18:45,021 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:18:45,022 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:18:45,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 03:18:45,022 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:18:45,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:18:45,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1128259245, now seen corresponding path program 1 times [2022-10-16 03:18:45,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:18:45,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868464229] [2022-10-16 03:18:45,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:18:45,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:18:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:18:45,208 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:18:45,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:18:45,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868464229] [2022-10-16 03:18:45,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868464229] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:18:45,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:18:45,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:18:45,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135943486] [2022-10-16 03:18:45,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:18:45,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:18:45,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:18:45,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:18:45,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:18:45,212 INFO L87 Difference]: Start difference. First operand 433102 states and 694182 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 03:18:49,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:18:49,302 INFO L93 Difference]: Finished difference Result 791061 states and 1269964 transitions. [2022-10-16 03:18:49,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:18:49,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 163 [2022-10-16 03:18:49,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:18:51,664 INFO L225 Difference]: With dead ends: 791061 [2022-10-16 03:18:51,664 INFO L226 Difference]: Without dead ends: 791061 [2022-10-16 03:18:51,664 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 03:18:51,665 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 168 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:18:51,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1001 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:18:52,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791061 states. [2022-10-16 03:19:06,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791061 to 790384. [2022-10-16 03:19:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790384 states, 790383 states have (on average 1.6059151069797808) internal successors, (1269288), 790383 states have internal predecessors, (1269288), 0 states have call successors, (0), 0 states 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 03:19:13,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790384 states to 790384 states and 1269288 transitions. [2022-10-16 03:19:13,323 INFO L78 Accepts]: Start accepts. Automaton has 790384 states and 1269288 transitions. Word has length 163 [2022-10-16 03:19:13,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:19:13,324 INFO L495 AbstractCegarLoop]: Abstraction has 790384 states and 1269288 transitions. [2022-10-16 03:19:13,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 03:19:13,324 INFO L276 IsEmpty]: Start isEmpty. Operand 790384 states and 1269288 transitions. [2022-10-16 03:19:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-10-16 03:19:13,336 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:19:13,336 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:19:13,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 03:19:13,337 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:19:13,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:19:13,337 INFO L85 PathProgramCache]: Analyzing trace with hash -176727603, now seen corresponding path program 1 times [2022-10-16 03:19:13,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:19:13,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571452480] [2022-10-16 03:19:13,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:19:13,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:19:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:19:13,486 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:19:13,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:19:13,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571452480] [2022-10-16 03:19:13,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571452480] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:19:13,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:19:13,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:19:13,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310106254] [2022-10-16 03:19:13,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:19:13,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:19:13,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:19:13,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:19:13,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:19:13,489 INFO L87 Difference]: Start difference. First operand 790384 states and 1269288 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 03:19:21,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:19:21,572 INFO L93 Difference]: Finished difference Result 1552025 states and 2482398 transitions. [2022-10-16 03:19:21,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:19:21,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2022-10-16 03:19:21,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:19:27,370 INFO L225 Difference]: With dead ends: 1552025 [2022-10-16 03:19:27,370 INFO L226 Difference]: Without dead ends: 1552025 [2022-10-16 03:19:27,371 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 03:19:27,374 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 403 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:19:27,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1294 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:19:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552025 states. [2022-10-16 03:19:59,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552025 to 1552023. [2022-10-16 03:20:06,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552023 states, 1552022 states have (on average 1.599459930336039) internal successors, (2482397), 1552022 states have internal predecessors, (2482397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)