/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/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:18:15,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:18:15,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:18:15,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:18:15,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:18:15,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:18:15,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:18:15,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:18:15,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:18:15,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:18:15,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:18:15,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:18:15,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:18:15,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:18:15,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:18:15,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:18:15,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:18:15,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:18:15,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:18:15,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:18:15,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:18:15,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:18:15,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:18:15,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:18:15,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:18:15,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:18:15,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:18:15,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:18:15,358 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 [2022-10-15 17:18:15,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:18:15,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:18:15,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:18:15,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:18:15,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:18:15,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:18:15,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:18:15,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:18:15,390 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:18:15,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:18:15,390 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:18:15,390 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:18:15,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:18:15,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:18:15,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:18:15,391 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:18:15,391 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:18:15,391 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:18:15,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:18:15,392 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:18:15,392 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:18:15,392 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:18:15,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:18:15,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:18:15,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:18:15,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:18:15,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:18:15,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:18:15,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:18:15,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:18:15,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:18:15,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:18:15,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:18:15,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:18:15,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:18:15,778 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:18:15,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2022-10-15 17:18:15,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b91608c23/27432ecac4174388a793ab3091164a01/FLAG58a98a3cc [2022-10-15 17:18:16,498 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:18:16,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2022-10-15 17:18:16,522 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b91608c23/27432ecac4174388a793ab3091164a01/FLAG58a98a3cc [2022-10-15 17:18:16,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b91608c23/27432ecac4174388a793ab3091164a01 [2022-10-15 17:18:16,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:18:16,810 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:18:16,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:18:16,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:18:16,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:18:16,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:18:16" (1/1) ... [2022-10-15 17:18:16,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6b3ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:16, skipping insertion in model container [2022-10-15 17:18:16,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:18:16" (1/1) ... [2022-10-15 17:18:16,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:18:16,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:18:17,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c[12764,12777] [2022-10-15 17:18:17,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:18:17,323 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:18:17,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c[12764,12777] [2022-10-15 17:18:17,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:18:17,404 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:18:17,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17 WrapperNode [2022-10-15 17:18:17,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:18:17,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:18:17,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:18:17,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:18:17,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (1/1) ... [2022-10-15 17:18:17,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (1/1) ... [2022-10-15 17:18:17,483 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 441 [2022-10-15 17:18:17,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:18:17,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:18:17,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:18:17,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:18:17,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (1/1) ... [2022-10-15 17:18:17,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (1/1) ... [2022-10-15 17:18:17,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (1/1) ... [2022-10-15 17:18:17,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (1/1) ... [2022-10-15 17:18:17,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (1/1) ... [2022-10-15 17:18:17,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (1/1) ... [2022-10-15 17:18:17,531 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (1/1) ... [2022-10-15 17:18:17,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (1/1) ... [2022-10-15 17:18:17,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:18:17,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:18:17,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:18:17,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:18:17,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (1/1) ... [2022-10-15 17:18:17,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:18:17,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:18:17,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 17:18:17,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 17:18:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:18:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:18:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:18:17,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:18:17,852 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:18:17,855 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:18:18,652 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:18:18,665 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:18:18,665 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:18:18,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:18:18 BoogieIcfgContainer [2022-10-15 17:18:18,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:18:18,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:18:18,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:18:18,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:18:18,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:18:16" (1/3) ... [2022-10-15 17:18:18,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f70214c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:18:18, skipping insertion in model container [2022-10-15 17:18:18,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:17" (2/3) ... [2022-10-15 17:18:18,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f70214c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:18:18, skipping insertion in model container [2022-10-15 17:18:18,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:18:18" (3/3) ... [2022-10-15 17:18:18,679 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2022-10-15 17:18:18,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:18:18,702 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:18:18,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:18:18,774 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;@3f2a801d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:18:18,775 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:18:18,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 129 states have (on average 1.7674418604651163) internal successors, (228), 131 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:18,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 17:18:18,790 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:18,791 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] [2022-10-15 17:18:18,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:18,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:18,798 INFO L85 PathProgramCache]: Analyzing trace with hash -624294069, now seen corresponding path program 1 times [2022-10-15 17:18:18,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:18,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789317721] [2022-10-15 17:18:18,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:18,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:19,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:19,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:19,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789317721] [2022-10-15 17:18:19,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789317721] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:19,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:19,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:18:19,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204839063] [2022-10-15 17:18:19,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:19,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 17:18:19,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:19,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 17:18:19,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:18:19,198 INFO L87 Difference]: Start difference. First operand has 132 states, 129 states have (on average 1.7674418604651163) internal successors, (228), 131 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:19,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:19,253 INFO L93 Difference]: Finished difference Result 132 states and 225 transitions. [2022-10-15 17:18:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 17:18:19,260 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-10-15 17:18:19,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:19,278 INFO L225 Difference]: With dead ends: 132 [2022-10-15 17:18:19,278 INFO L226 Difference]: Without dead ends: 130 [2022-10-15 17:18:19,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:18:19,291 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:19,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-10-15 17:18:19,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-10-15 17:18:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 128 states have (on average 1.7421875) internal successors, (223), 129 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:19,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 223 transitions. [2022-10-15 17:18:19,345 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 223 transitions. Word has length 22 [2022-10-15 17:18:19,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:19,346 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 223 transitions. [2022-10-15 17:18:19,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:19,347 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 223 transitions. [2022-10-15 17:18:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 17:18:19,348 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:19,348 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] [2022-10-15 17:18:19,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:18:19,349 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:19,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash -622447027, now seen corresponding path program 1 times [2022-10-15 17:18:19,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:19,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773492847] [2022-10-15 17:18:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:19,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:19,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:19,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:19,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773492847] [2022-10-15 17:18:19,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773492847] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:19,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:19,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:18:19,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449981925] [2022-10-15 17:18:19,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:19,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:18:19,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:19,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:18:19,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:18:19,638 INFO L87 Difference]: Start difference. First operand 130 states and 223 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:19,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:19,760 INFO L93 Difference]: Finished difference Result 203 states and 343 transitions. [2022-10-15 17:18:19,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:18:19,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-10-15 17:18:19,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:19,764 INFO L225 Difference]: With dead ends: 203 [2022-10-15 17:18:19,764 INFO L226 Difference]: Without dead ends: 200 [2022-10-15 17:18:19,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:18:19,767 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 120 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:19,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 843 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:18:19,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-10-15 17:18:19,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 131. [2022-10-15 17:18:19,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 129 states have (on average 1.5271317829457365) internal successors, (197), 130 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:19,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 197 transitions. [2022-10-15 17:18:19,798 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 197 transitions. Word has length 22 [2022-10-15 17:18:19,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:19,798 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 197 transitions. [2022-10-15 17:18:19,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 197 transitions. [2022-10-15 17:18:19,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:18:19,801 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:19,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:19,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:18:19,801 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:19,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:19,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1313145683, now seen corresponding path program 1 times [2022-10-15 17:18:19,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:19,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684249417] [2022-10-15 17:18:19,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:19,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:20,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:20,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:20,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684249417] [2022-10-15 17:18:20,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684249417] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:20,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:20,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:18:20,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68604615] [2022-10-15 17:18:20,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:20,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:18:20,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:20,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:18:20,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:20,142 INFO L87 Difference]: Start difference. First operand 131 states and 197 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:20,208 INFO L93 Difference]: Finished difference Result 189 states and 286 transitions. [2022-10-15 17:18:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:18:20,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-10-15 17:18:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:20,214 INFO L225 Difference]: With dead ends: 189 [2022-10-15 17:18:20,214 INFO L226 Difference]: Without dead ends: 189 [2022-10-15 17:18:20,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:20,219 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 96 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:20,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 420 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:20,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-15 17:18:20,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 184. [2022-10-15 17:18:20,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 182 states have (on average 1.554945054945055) internal successors, (283), 183 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 283 transitions. [2022-10-15 17:18:20,247 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 283 transitions. Word has length 63 [2022-10-15 17:18:20,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:20,248 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 283 transitions. [2022-10-15 17:18:20,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,248 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 283 transitions. [2022-10-15 17:18:20,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:18:20,251 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:20,252 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] [2022-10-15 17:18:20,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:18:20,252 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:20,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:20,253 INFO L85 PathProgramCache]: Analyzing trace with hash -255493166, now seen corresponding path program 1 times [2022-10-15 17:18:20,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:20,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497134372] [2022-10-15 17:18:20,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:20,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:20,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:20,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:20,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497134372] [2022-10-15 17:18:20,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497134372] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:20,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:20,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:18:20,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842464319] [2022-10-15 17:18:20,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:20,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:18:20,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:18:20,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:20,391 INFO L87 Difference]: Start difference. First operand 184 states and 283 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:20,418 INFO L93 Difference]: Finished difference Result 243 states and 378 transitions. [2022-10-15 17:18:20,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:18:20,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 17:18:20,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:20,421 INFO L225 Difference]: With dead ends: 243 [2022-10-15 17:18:20,421 INFO L226 Difference]: Without dead ends: 243 [2022-10-15 17:18:20,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:20,424 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 105 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:20,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 450 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:20,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-10-15 17:18:20,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 238. [2022-10-15 17:18:20,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 236 states have (on average 1.5889830508474576) internal successors, (375), 237 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 375 transitions. [2022-10-15 17:18:20,442 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 375 transitions. Word has length 65 [2022-10-15 17:18:20,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:20,443 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 375 transitions. [2022-10-15 17:18:20,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,443 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 375 transitions. [2022-10-15 17:18:20,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:18:20,446 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:20,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:20,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:18:20,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:20,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:20,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1395779292, now seen corresponding path program 1 times [2022-10-15 17:18:20,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:20,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823154174] [2022-10-15 17:18:20,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:20,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:20,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:20,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823154174] [2022-10-15 17:18:20,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823154174] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:20,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:20,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:18:20,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169661128] [2022-10-15 17:18:20,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:20,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:18:20,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:20,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:18:20,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:20,616 INFO L87 Difference]: Start difference. First operand 238 states and 375 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:20,639 INFO L93 Difference]: Finished difference Result 396 states and 631 transitions. [2022-10-15 17:18:20,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:18:20,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 17:18:20,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:20,643 INFO L225 Difference]: With dead ends: 396 [2022-10-15 17:18:20,643 INFO L226 Difference]: Without dead ends: 396 [2022-10-15 17:18:20,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:20,652 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 98 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 437 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 [2022-10-15 17:18:20,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 437 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:20,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-10-15 17:18:20,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 391. [2022-10-15 17:18:20,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 389 states have (on average 1.6143958868894601) internal successors, (628), 390 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 628 transitions. [2022-10-15 17:18:20,694 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 628 transitions. Word has length 65 [2022-10-15 17:18:20,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:20,696 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 628 transitions. [2022-10-15 17:18:20,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,697 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 628 transitions. [2022-10-15 17:18:20,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 17:18:20,703 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:20,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:20,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:18:20,708 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:20,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:20,709 INFO L85 PathProgramCache]: Analyzing trace with hash -812427391, now seen corresponding path program 1 times [2022-10-15 17:18:20,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:20,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481626235] [2022-10-15 17:18:20,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:20,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:20,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:20,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481626235] [2022-10-15 17:18:20,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481626235] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:20,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:20,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:18:20,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997805313] [2022-10-15 17:18:20,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:20,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:18:20,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:20,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:18:20,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:20,859 INFO L87 Difference]: Start difference. First operand 391 states and 628 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:20,882 INFO L93 Difference]: Finished difference Result 535 states and 859 transitions. [2022-10-15 17:18:20,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:18:20,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-10-15 17:18:20,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:20,886 INFO L225 Difference]: With dead ends: 535 [2022-10-15 17:18:20,887 INFO L226 Difference]: Without dead ends: 535 [2022-10-15 17:18:20,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:20,889 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 99 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:20,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 436 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:20,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-10-15 17:18:20,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 530. [2022-10-15 17:18:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 528 states have (on average 1.621212121212121) internal successors, (856), 529 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 856 transitions. [2022-10-15 17:18:20,909 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 856 transitions. Word has length 67 [2022-10-15 17:18:20,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:20,909 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 856 transitions. [2022-10-15 17:18:20,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:20,910 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 856 transitions. [2022-10-15 17:18:20,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 17:18:20,911 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:20,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:20,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:18:20,912 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:20,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:20,912 INFO L85 PathProgramCache]: Analyzing trace with hash 221435787, now seen corresponding path program 1 times [2022-10-15 17:18:20,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:20,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728307047] [2022-10-15 17:18:20,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:20,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:21,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:21,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:21,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728307047] [2022-10-15 17:18:21,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728307047] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:21,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:21,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:18:21,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484459572] [2022-10-15 17:18:21,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:21,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:18:21,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:21,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:18:21,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:21,046 INFO L87 Difference]: Start difference. First operand 530 states and 856 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:21,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:21,068 INFO L93 Difference]: Finished difference Result 928 states and 1495 transitions. [2022-10-15 17:18:21,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:18:21,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-10-15 17:18:21,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:21,077 INFO L225 Difference]: With dead ends: 928 [2022-10-15 17:18:21,077 INFO L226 Difference]: Without dead ends: 928 [2022-10-15 17:18:21,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:21,082 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 92 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 424 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 [2022-10-15 17:18:21,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 424 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:21,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-10-15 17:18:21,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 923. [2022-10-15 17:18:21,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 921 states have (on average 1.6199782844733985) internal successors, (1492), 922 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:21,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1492 transitions. [2022-10-15 17:18:21,115 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1492 transitions. Word has length 67 [2022-10-15 17:18:21,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:21,117 INFO L495 AbstractCegarLoop]: Abstraction has 923 states and 1492 transitions. [2022-10-15 17:18:21,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:21,119 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1492 transitions. [2022-10-15 17:18:21,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 17:18:21,122 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:21,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:21,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:18:21,123 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:21,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:21,128 INFO L85 PathProgramCache]: Analyzing trace with hash 664156592, now seen corresponding path program 1 times [2022-10-15 17:18:21,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:21,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557840775] [2022-10-15 17:18:21,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:21,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:21,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:21,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:21,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557840775] [2022-10-15 17:18:21,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557840775] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:21,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:21,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:18:21,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073130400] [2022-10-15 17:18:21,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:21,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:18:21,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:21,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:18:21,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:21,240 INFO L87 Difference]: Start difference. First operand 923 states and 1492 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:21,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:21,264 INFO L93 Difference]: Finished difference Result 1259 states and 2028 transitions. [2022-10-15 17:18:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:18:21,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-10-15 17:18:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:21,272 INFO L225 Difference]: With dead ends: 1259 [2022-10-15 17:18:21,273 INFO L226 Difference]: Without dead ends: 1259 [2022-10-15 17:18:21,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:21,274 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 93 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:21,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 422 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:21,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2022-10-15 17:18:21,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1254. [2022-10-15 17:18:21,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1252 states have (on average 1.6174121405750799) internal successors, (2025), 1253 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:21,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 2025 transitions. [2022-10-15 17:18:21,315 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 2025 transitions. Word has length 69 [2022-10-15 17:18:21,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:21,316 INFO L495 AbstractCegarLoop]: Abstraction has 1254 states and 2025 transitions. [2022-10-15 17:18:21,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:21,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 2025 transitions. [2022-10-15 17:18:21,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 17:18:21,317 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:21,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:21,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:18:21,317 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:21,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:21,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1757720902, now seen corresponding path program 1 times [2022-10-15 17:18:21,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:21,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590463197] [2022-10-15 17:18:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:21,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:21,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:21,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:21,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590463197] [2022-10-15 17:18:21,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590463197] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:21,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:21,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:18:21,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301793726] [2022-10-15 17:18:21,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:21,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:18:21,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:21,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:18:21,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:18:21,483 INFO L87 Difference]: Start difference. First operand 1254 states and 2025 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:21,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:21,666 INFO L93 Difference]: Finished difference Result 5866 states and 9492 transitions. [2022-10-15 17:18:21,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:18:21,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-10-15 17:18:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:21,700 INFO L225 Difference]: With dead ends: 5866 [2022-10-15 17:18:21,701 INFO L226 Difference]: Without dead ends: 5866 [2022-10-15 17:18:21,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:18:21,702 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 795 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:21,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 1223 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:18:21,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5866 states. [2022-10-15 17:18:21,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5866 to 2388. [2022-10-15 17:18:21,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 2386 states have (on average 1.61441743503772) internal successors, (3852), 2387 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:21,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3852 transitions. [2022-10-15 17:18:21,832 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3852 transitions. Word has length 69 [2022-10-15 17:18:21,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:21,832 INFO L495 AbstractCegarLoop]: Abstraction has 2388 states and 3852 transitions. [2022-10-15 17:18:21,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:21,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3852 transitions. [2022-10-15 17:18:21,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-15 17:18:21,834 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:21,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:21,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:18:21,834 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:21,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:21,835 INFO L85 PathProgramCache]: Analyzing trace with hash -577605759, now seen corresponding path program 1 times [2022-10-15 17:18:21,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:21,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786695658] [2022-10-15 17:18:21,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:21,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:21,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:21,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786695658] [2022-10-15 17:18:21,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786695658] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:21,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:21,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:18:21,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562229109] [2022-10-15 17:18:21,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:21,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:18:21,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:21,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:18:21,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:18:21,944 INFO L87 Difference]: Start difference. First operand 2388 states and 3852 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:22,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:22,050 INFO L93 Difference]: Finished difference Result 6750 states and 10883 transitions. [2022-10-15 17:18:22,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:18:22,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-10-15 17:18:22,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:22,087 INFO L225 Difference]: With dead ends: 6750 [2022-10-15 17:18:22,087 INFO L226 Difference]: Without dead ends: 6750 [2022-10-15 17:18:22,087 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 [2022-10-15 17:18:22,088 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 347 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 638 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 [2022-10-15 17:18:22,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 638 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:18:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6750 states. [2022-10-15 17:18:22,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6750 to 4547. [2022-10-15 17:18:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4547 states, 4545 states have (on average 1.6072607260726073) internal successors, (7305), 4546 states have internal predecessors, (7305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:22,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 7305 transitions. [2022-10-15 17:18:22,234 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 7305 transitions. Word has length 70 [2022-10-15 17:18:22,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:22,234 INFO L495 AbstractCegarLoop]: Abstraction has 4547 states and 7305 transitions. [2022-10-15 17:18:22,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:22,235 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 7305 transitions. [2022-10-15 17:18:22,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 17:18:22,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:22,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:22,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:18:22,236 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:22,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:22,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1815229649, now seen corresponding path program 1 times [2022-10-15 17:18:22,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:22,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030592792] [2022-10-15 17:18:22,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:22,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:22,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:22,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:22,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030592792] [2022-10-15 17:18:22,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030592792] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:22,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:22,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:18:22,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588771593] [2022-10-15 17:18:22,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:22,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:18:22,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:22,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:18:22,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:18:22,376 INFO L87 Difference]: Start difference. First operand 4547 states and 7305 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:22,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:22,495 INFO L93 Difference]: Finished difference Result 10151 states and 16290 transitions. [2022-10-15 17:18:22,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:18:22,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-10-15 17:18:22,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:22,548 INFO L225 Difference]: With dead ends: 10151 [2022-10-15 17:18:22,548 INFO L226 Difference]: Without dead ends: 10151 [2022-10-15 17:18:22,548 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 [2022-10-15 17:18:22,549 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 345 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:22,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 635 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:22,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10151 states. [2022-10-15 17:18:22,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10151 to 7311. [2022-10-15 17:18:22,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 7309 states have (on average 1.5978930086195102) internal successors, (11679), 7310 states have internal predecessors, (11679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:22,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 11679 transitions. [2022-10-15 17:18:22,782 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 11679 transitions. Word has length 71 [2022-10-15 17:18:22,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:22,782 INFO L495 AbstractCegarLoop]: Abstraction has 7311 states and 11679 transitions. [2022-10-15 17:18:22,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:22,783 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 11679 transitions. [2022-10-15 17:18:22,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 17:18:22,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:22,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:22,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:18:22,784 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:22,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:22,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1147279688, now seen corresponding path program 1 times [2022-10-15 17:18:22,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:22,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031861502] [2022-10-15 17:18:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:22,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:22,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:22,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:22,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031861502] [2022-10-15 17:18:22,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031861502] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:22,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:22,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:18:22,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371135427] [2022-10-15 17:18:22,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:22,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:18:22,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:22,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:18:22,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:18:22,953 INFO L87 Difference]: Start difference. First operand 7311 states and 11679 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:23,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:23,130 INFO L93 Difference]: Finished difference Result 15935 states and 25406 transitions. [2022-10-15 17:18:23,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:18:23,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-10-15 17:18:23,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:23,178 INFO L225 Difference]: With dead ends: 15935 [2022-10-15 17:18:23,178 INFO L226 Difference]: Without dead ends: 15935 [2022-10-15 17:18:23,179 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 [2022-10-15 17:18:23,180 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 343 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 637 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 [2022-10-15 17:18:23,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 637 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:18:23,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15935 states. [2022-10-15 17:18:23,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15935 to 11567. [2022-10-15 17:18:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11567 states, 11565 states have (on average 1.5876351059230436) internal successors, (18361), 11566 states have internal predecessors, (18361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:23,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11567 states to 11567 states and 18361 transitions. [2022-10-15 17:18:23,543 INFO L78 Accepts]: Start accepts. Automaton has 11567 states and 18361 transitions. Word has length 72 [2022-10-15 17:18:23,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:23,543 INFO L495 AbstractCegarLoop]: Abstraction has 11567 states and 18361 transitions. [2022-10-15 17:18:23,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:23,544 INFO L276 IsEmpty]: Start isEmpty. Operand 11567 states and 18361 transitions. [2022-10-15 17:18:23,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 17:18:23,545 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:23,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:23,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:18:23,546 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:23,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:23,546 INFO L85 PathProgramCache]: Analyzing trace with hash -856706640, now seen corresponding path program 1 times [2022-10-15 17:18:23,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:23,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104874064] [2022-10-15 17:18:23,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:23,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:23,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:23,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:23,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104874064] [2022-10-15 17:18:23,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104874064] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:23,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:23,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:18:23,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412929930] [2022-10-15 17:18:23,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:23,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:18:23,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:23,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:18:23,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:18:23,802 INFO L87 Difference]: Start difference. First operand 11567 states and 18361 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:23,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:23,949 INFO L93 Difference]: Finished difference Result 11572 states and 18214 transitions. [2022-10-15 17:18:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:18:23,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-15 17:18:23,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:23,978 INFO L225 Difference]: With dead ends: 11572 [2022-10-15 17:18:23,979 INFO L226 Difference]: Without dead ends: 11572 [2022-10-15 17:18:23,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:18:23,980 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 162 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:23,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 689 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:18:23,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11572 states. [2022-10-15 17:18:24,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11572 to 11567. [2022-10-15 17:18:24,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11567 states, 11565 states have (on average 1.5746649373108517) internal successors, (18211), 11566 states have internal predecessors, (18211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11567 states to 11567 states and 18211 transitions. [2022-10-15 17:18:24,282 INFO L78 Accepts]: Start accepts. Automaton has 11567 states and 18211 transitions. Word has length 74 [2022-10-15 17:18:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:24,283 INFO L495 AbstractCegarLoop]: Abstraction has 11567 states and 18211 transitions. [2022-10-15 17:18:24,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand 11567 states and 18211 transitions. [2022-10-15 17:18:24,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 17:18:24,284 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:24,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:24,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:18:24,284 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:24,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:24,285 INFO L85 PathProgramCache]: Analyzing trace with hash 251102324, now seen corresponding path program 1 times [2022-10-15 17:18:24,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:24,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284846639] [2022-10-15 17:18:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:24,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:24,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:24,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:24,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284846639] [2022-10-15 17:18:24,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284846639] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:24,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:24,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:18:24,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973083644] [2022-10-15 17:18:24,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:24,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:18:24,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:24,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:18:24,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:18:24,580 INFO L87 Difference]: Start difference. First operand 11567 states and 18211 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:24,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:24,752 INFO L93 Difference]: Finished difference Result 21871 states and 34152 transitions. [2022-10-15 17:18:24,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:18:24,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-15 17:18:24,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:24,808 INFO L225 Difference]: With dead ends: 21871 [2022-10-15 17:18:24,808 INFO L226 Difference]: Without dead ends: 21871 [2022-10-15 17:18:24,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:18:24,809 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 338 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:24,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 528 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:18:24,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21871 states. [2022-10-15 17:18:25,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21871 to 21866. [2022-10-15 17:18:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21866 states, 21864 states have (on average 1.5618825466520307) internal successors, (34149), 21865 states have internal predecessors, (34149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:25,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21866 states to 21866 states and 34149 transitions. [2022-10-15 17:18:25,375 INFO L78 Accepts]: Start accepts. Automaton has 21866 states and 34149 transitions. Word has length 77 [2022-10-15 17:18:25,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:25,375 INFO L495 AbstractCegarLoop]: Abstraction has 21866 states and 34149 transitions. [2022-10-15 17:18:25,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:25,376 INFO L276 IsEmpty]: Start isEmpty. Operand 21866 states and 34149 transitions. [2022-10-15 17:18:25,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-15 17:18:25,376 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:25,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:25,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:18:25,377 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:25,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:25,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1234338215, now seen corresponding path program 1 times [2022-10-15 17:18:25,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:25,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107986017] [2022-10-15 17:18:25,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:25,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:25,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:25,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:25,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107986017] [2022-10-15 17:18:25,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107986017] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:25,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:25,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:18:25,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564969534] [2022-10-15 17:18:25,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:25,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:18:25,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:25,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:18:25,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:18:25,856 INFO L87 Difference]: Start difference. First operand 21866 states and 34149 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:26,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:26,116 INFO L93 Difference]: Finished difference Result 44539 states and 68288 transitions. [2022-10-15 17:18:26,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:18:26,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-15 17:18:26,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:26,299 INFO L225 Difference]: With dead ends: 44539 [2022-10-15 17:18:26,300 INFO L226 Difference]: Without dead ends: 44539 [2022-10-15 17:18:26,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:18:26,304 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 685 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:26,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1208 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:26,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44539 states. [2022-10-15 17:18:27,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44539 to 23027. [2022-10-15 17:18:27,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23027 states, 23025 states have (on average 1.533159609120521) internal successors, (35301), 23026 states have internal predecessors, (35301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:27,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23027 states to 23027 states and 35301 transitions. [2022-10-15 17:18:27,269 INFO L78 Accepts]: Start accepts. Automaton has 23027 states and 35301 transitions. Word has length 78 [2022-10-15 17:18:27,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:27,269 INFO L495 AbstractCegarLoop]: Abstraction has 23027 states and 35301 transitions. [2022-10-15 17:18:27,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:27,270 INFO L276 IsEmpty]: Start isEmpty. Operand 23027 states and 35301 transitions. [2022-10-15 17:18:27,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-15 17:18:27,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:27,279 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] [2022-10-15 17:18:27,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:18:27,280 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:27,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:27,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1345289194, now seen corresponding path program 1 times [2022-10-15 17:18:27,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:27,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584341101] [2022-10-15 17:18:27,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:27,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:27,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:27,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584341101] [2022-10-15 17:18:27,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584341101] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:18:27,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666679456] [2022-10-15 17:18:27,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:27,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:18:27,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:18:27,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:18:27,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:18:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:27,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:18:27,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:18:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:18:27,687 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:18:27,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666679456] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:27,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:18:27,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 17:18:27,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528223782] [2022-10-15 17:18:27,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:27,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:18:27,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:27,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:18:27,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:18:27,689 INFO L87 Difference]: Start difference. First operand 23027 states and 35301 transitions. Second operand has 3 states, 2 states have (on average 40.5) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:27,764 INFO L93 Difference]: Finished difference Result 23026 states and 35300 transitions. [2022-10-15 17:18:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:18:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 40.5) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-10-15 17:18:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:27,814 INFO L225 Difference]: With dead ends: 23026 [2022-10-15 17:18:27,814 INFO L226 Difference]: Without dead ends: 23024 [2022-10-15 17:18:27,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:18:27,815 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 115 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:27,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 195 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:27,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23024 states. [2022-10-15 17:18:28,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23024 to 23024. [2022-10-15 17:18:28,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23024 states, 23023 states have (on average 1.5106632497936845) internal successors, (34780), 23023 states have internal predecessors, (34780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:28,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23024 states to 23024 states and 34780 transitions. [2022-10-15 17:18:28,433 INFO L78 Accepts]: Start accepts. Automaton has 23024 states and 34780 transitions. Word has length 81 [2022-10-15 17:18:28,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:28,434 INFO L495 AbstractCegarLoop]: Abstraction has 23024 states and 34780 transitions. [2022-10-15 17:18:28,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 40.5) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 23024 states and 34780 transitions. [2022-10-15 17:18:28,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-15 17:18:28,437 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:28,438 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:28,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 17:18:28,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-15 17:18:28,653 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:28,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:28,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1630330772, now seen corresponding path program 1 times [2022-10-15 17:18:28,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:28,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486930691] [2022-10-15 17:18:28,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:28,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:28,842 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:18:28,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:28,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486930691] [2022-10-15 17:18:28,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486930691] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:28,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:28,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:18:28,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939067269] [2022-10-15 17:18:28,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:28,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:18:28,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:28,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:18:28,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:18:28,845 INFO L87 Difference]: Start difference. First operand 23024 states and 34780 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:29,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:29,074 INFO L93 Difference]: Finished difference Result 46884 states and 70722 transitions. [2022-10-15 17:18:29,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:18:29,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-10-15 17:18:29,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:29,186 INFO L225 Difference]: With dead ends: 46884 [2022-10-15 17:18:29,186 INFO L226 Difference]: Without dead ends: 46884 [2022-10-15 17:18:29,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:18:29,188 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 423 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:29,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 767 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:18:29,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46884 states. [2022-10-15 17:18:29,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46884 to 35852. [2022-10-15 17:18:29,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35852 states, 35851 states have (on average 1.5082982343588742) internal successors, (54074), 35851 states have internal predecessors, (54074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:30,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35852 states to 35852 states and 54074 transitions. [2022-10-15 17:18:30,107 INFO L78 Accepts]: Start accepts. Automaton has 35852 states and 54074 transitions. Word has length 103 [2022-10-15 17:18:30,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:30,108 INFO L495 AbstractCegarLoop]: Abstraction has 35852 states and 54074 transitions. [2022-10-15 17:18:30,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:30,108 INFO L276 IsEmpty]: Start isEmpty. Operand 35852 states and 54074 transitions. [2022-10-15 17:18:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-15 17:18:30,115 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:30,115 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:30,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:18:30,120 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:30,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:30,121 INFO L85 PathProgramCache]: Analyzing trace with hash -743960700, now seen corresponding path program 1 times [2022-10-15 17:18:30,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:30,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063563137] [2022-10-15 17:18:30,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:30,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:30,340 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:18:30,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:30,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063563137] [2022-10-15 17:18:30,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063563137] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:30,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:30,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:18:30,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315243826] [2022-10-15 17:18:30,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:30,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:18:30,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:30,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:18:30,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:18:30,344 INFO L87 Difference]: Start difference. First operand 35852 states and 54074 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:30,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:30,665 INFO L93 Difference]: Finished difference Result 55404 states and 83698 transitions. [2022-10-15 17:18:30,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:18:30,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 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 103 [2022-10-15 17:18:30,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:30,825 INFO L225 Difference]: With dead ends: 55404 [2022-10-15 17:18:30,825 INFO L226 Difference]: Without dead ends: 55404 [2022-10-15 17:18:30,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:18:30,826 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 421 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:30,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 816 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:18:31,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55404 states. [2022-10-15 17:18:32,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55404 to 50070. [2022-10-15 17:18:32,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50070 states, 50069 states have (on average 1.5074597056062633) internal successors, (75477), 50069 states have internal predecessors, (75477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50070 states to 50070 states and 75477 transitions. [2022-10-15 17:18:32,273 INFO L78 Accepts]: Start accepts. Automaton has 50070 states and 75477 transitions. Word has length 103 [2022-10-15 17:18:32,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:32,273 INFO L495 AbstractCegarLoop]: Abstraction has 50070 states and 75477 transitions. [2022-10-15 17:18:32,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 50070 states and 75477 transitions. [2022-10-15 17:18:32,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-15 17:18:32,277 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:32,278 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:32,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:18:32,278 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:32,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:32,279 INFO L85 PathProgramCache]: Analyzing trace with hash 910392184, now seen corresponding path program 1 times [2022-10-15 17:18:32,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:32,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509643405] [2022-10-15 17:18:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:32,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:32,454 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:18:32,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:32,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509643405] [2022-10-15 17:18:32,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509643405] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:32,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:32,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:18:32,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489468325] [2022-10-15 17:18:32,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:32,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:18:32,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:32,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:18:32,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:18:32,456 INFO L87 Difference]: Start difference. First operand 50070 states and 75477 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:33,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:33,104 INFO L93 Difference]: Finished difference Result 59660 states and 90178 transitions. [2022-10-15 17:18:33,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:18:33,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 103 [2022-10-15 17:18:33,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:33,252 INFO L225 Difference]: With dead ends: 59660 [2022-10-15 17:18:33,253 INFO L226 Difference]: Without dead ends: 59660 [2022-10-15 17:18:33,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:18:33,254 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 419 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:33,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 906 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:18:33,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59660 states. [2022-10-15 17:18:34,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59660 to 57518. [2022-10-15 17:18:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57518 states, 57517 states have (on average 1.5097275588087) internal successors, (86835), 57517 states have internal predecessors, (86835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:34,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57518 states to 57518 states and 86835 transitions. [2022-10-15 17:18:34,784 INFO L78 Accepts]: Start accepts. Automaton has 57518 states and 86835 transitions. Word has length 103 [2022-10-15 17:18:34,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:34,784 INFO L495 AbstractCegarLoop]: Abstraction has 57518 states and 86835 transitions. [2022-10-15 17:18:34,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:34,785 INFO L276 IsEmpty]: Start isEmpty. Operand 57518 states and 86835 transitions. [2022-10-15 17:18:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-15 17:18:34,792 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:34,793 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:34,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:18:34,793 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:34,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:34,794 INFO L85 PathProgramCache]: Analyzing trace with hash -923479025, now seen corresponding path program 1 times [2022-10-15 17:18:34,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:34,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27390512] [2022-10-15 17:18:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:34,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:34,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:18:34,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:34,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27390512] [2022-10-15 17:18:34,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27390512] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:34,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:34,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:18:34,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155886320] [2022-10-15 17:18:34,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:34,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:18:34,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:34,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:18:34,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:18:34,943 INFO L87 Difference]: Start difference. First operand 57518 states and 86835 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:35,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:35,252 INFO L93 Difference]: Finished difference Result 77075 states and 116243 transitions. [2022-10-15 17:18:35,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:18:35,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 104 [2022-10-15 17:18:35,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:35,406 INFO L225 Difference]: With dead ends: 77075 [2022-10-15 17:18:35,406 INFO L226 Difference]: Without dead ends: 77075 [2022-10-15 17:18:35,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:18:35,407 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 187 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:35,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 575 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:35,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77075 states. [2022-10-15 17:18:36,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77075 to 74935. [2022-10-15 17:18:36,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74935 states, 74934 states have (on average 1.5073131021965998) internal successors, (112949), 74934 states have internal predecessors, (112949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:37,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74935 states to 74935 states and 112949 transitions. [2022-10-15 17:18:37,010 INFO L78 Accepts]: Start accepts. Automaton has 74935 states and 112949 transitions. Word has length 104 [2022-10-15 17:18:37,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:37,010 INFO L495 AbstractCegarLoop]: Abstraction has 74935 states and 112949 transitions. [2022-10-15 17:18:37,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:37,010 INFO L276 IsEmpty]: Start isEmpty. Operand 74935 states and 112949 transitions. [2022-10-15 17:18:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-15 17:18:37,014 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:37,015 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:37,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 17:18:37,015 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:37,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:37,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1887965934, now seen corresponding path program 1 times [2022-10-15 17:18:37,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:37,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300556370] [2022-10-15 17:18:37,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:37,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:18:37,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:37,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300556370] [2022-10-15 17:18:37,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300556370] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:37,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:37,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:18:37,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809541820] [2022-10-15 17:18:37,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:37,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:18:37,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:37,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:18:37,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:18:37,807 INFO L87 Difference]: Start difference. First operand 74935 states and 112949 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:38,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:38,222 INFO L93 Difference]: Finished difference Result 133646 states and 201689 transitions. [2022-10-15 17:18:38,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:18:38,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 104 [2022-10-15 17:18:38,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:38,533 INFO L225 Difference]: With dead ends: 133646 [2022-10-15 17:18:38,533 INFO L226 Difference]: Without dead ends: 133646 [2022-10-15 17:18:38,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:18:38,535 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 333 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:38,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 522 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:39,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133646 states. [2022-10-15 17:18:40,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133646 to 115382. [2022-10-15 17:18:40,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115382 states, 115381 states have (on average 1.5118000364011406) internal successors, (174433), 115381 states have internal predecessors, (174433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:40,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115382 states to 115382 states and 174433 transitions. [2022-10-15 17:18:40,802 INFO L78 Accepts]: Start accepts. Automaton has 115382 states and 174433 transitions. Word has length 104 [2022-10-15 17:18:40,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:40,803 INFO L495 AbstractCegarLoop]: Abstraction has 115382 states and 174433 transitions. [2022-10-15 17:18:40,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand 115382 states and 174433 transitions. [2022-10-15 17:18:40,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-15 17:18:40,807 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:40,807 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:40,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-15 17:18:40,807 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:40,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:40,808 INFO L85 PathProgramCache]: Analyzing trace with hash -752648478, now seen corresponding path program 1 times [2022-10-15 17:18:40,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:40,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100791754] [2022-10-15 17:18:40,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:40,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:18:41,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:41,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100791754] [2022-10-15 17:18:41,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100791754] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:41,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:41,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:18:41,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085796640] [2022-10-15 17:18:41,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:41,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:18:41,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:41,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:18:41,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:18:41,739 INFO L87 Difference]: Start difference. First operand 115382 states and 174433 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:42,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:42,627 INFO L93 Difference]: Finished difference Result 198749 states and 300772 transitions. [2022-10-15 17:18:42,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:18:42,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-10-15 17:18:42,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:43,618 INFO L225 Difference]: With dead ends: 198749 [2022-10-15 17:18:43,618 INFO L226 Difference]: Without dead ends: 198749 [2022-10-15 17:18:43,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:18:43,628 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 325 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:43,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 539 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:18:43,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198749 states. [2022-10-15 17:18:45,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198749 to 172221. [2022-10-15 17:18:46,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172221 states, 172220 states have (on average 1.5154976193241203) internal successors, (260999), 172220 states have internal predecessors, (260999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:46,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172221 states to 172221 states and 260999 transitions. [2022-10-15 17:18:46,457 INFO L78 Accepts]: Start accepts. Automaton has 172221 states and 260999 transitions. Word has length 104 [2022-10-15 17:18:46,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:46,458 INFO L495 AbstractCegarLoop]: Abstraction has 172221 states and 260999 transitions. [2022-10-15 17:18:46,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:46,458 INFO L276 IsEmpty]: Start isEmpty. Operand 172221 states and 260999 transitions. [2022-10-15 17:18:46,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-15 17:18:46,460 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:46,460 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:46,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-15 17:18:46,461 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:46,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:46,461 INFO L85 PathProgramCache]: Analyzing trace with hash -500777199, now seen corresponding path program 1 times [2022-10-15 17:18:46,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:46,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769048257] [2022-10-15 17:18:46,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:46,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:46,547 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:18:46,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:46,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769048257] [2022-10-15 17:18:46,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769048257] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:46,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:46,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:18:46,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190004680] [2022-10-15 17:18:46,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:46,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:18:46,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:46,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:18:46,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:46,550 INFO L87 Difference]: Start difference. First operand 172221 states and 260999 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:48,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:48,945 INFO L93 Difference]: Finished difference Result 302745 states and 457621 transitions. [2022-10-15 17:18:48,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:18:48,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 104 [2022-10-15 17:18:48,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:18:49,853 INFO L225 Difference]: With dead ends: 302745 [2022-10-15 17:18:49,854 INFO L226 Difference]: Without dead ends: 302745 [2022-10-15 17:18:49,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:49,855 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 78 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:18:49,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 362 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 17:18:50,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302745 states. [2022-10-15 17:18:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302745 to 302083. [2022-10-15 17:18:54,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302083 states, 302082 states have (on average 1.5127018491667825) internal successors, (456960), 302082 states have internal predecessors, (456960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:55,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302083 states to 302083 states and 456960 transitions. [2022-10-15 17:18:55,836 INFO L78 Accepts]: Start accepts. Automaton has 302083 states and 456960 transitions. Word has length 104 [2022-10-15 17:18:55,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:18:55,837 INFO L495 AbstractCegarLoop]: Abstraction has 302083 states and 456960 transitions. [2022-10-15 17:18:55,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:55,837 INFO L276 IsEmpty]: Start isEmpty. Operand 302083 states and 456960 transitions. [2022-10-15 17:18:55,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-15 17:18:55,839 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:18:55,840 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:18:55,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-15 17:18:55,840 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:18:55,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:18:55,841 INFO L85 PathProgramCache]: Analyzing trace with hash 102298561, now seen corresponding path program 1 times [2022-10-15 17:18:55,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:18:55,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325795902] [2022-10-15 17:18:55,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:18:55,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:18:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:18:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:18:55,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:18:55,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325795902] [2022-10-15 17:18:55,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325795902] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:18:55,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:18:55,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:18:55,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106535070] [2022-10-15 17:18:55,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:18:55,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:18:55,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:18:55,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:18:55,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:18:55,922 INFO L87 Difference]: Start difference. First operand 302083 states and 456960 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:18:58,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:18:58,892 INFO L93 Difference]: Finished difference Result 594569 states and 892394 transitions. [2022-10-15 17:18:58,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:18:58,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-10-15 17:18:58,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:00,817 INFO L225 Difference]: With dead ends: 594569 [2022-10-15 17:19:00,817 INFO L226 Difference]: Without dead ends: 594569 [2022-10-15 17:19:00,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:00,818 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 143 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:00,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 461 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:01,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594569 states.