/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_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:29:51,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:29:51,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:29:51,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 02:29:51,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 02:29:51,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 02:29:51,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 02:29:51,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 02:29:51,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 02:29:51,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 02:29:51,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 02:29:51,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 02:29:51,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:29:51,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:29:51,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:29:51,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:29:51,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:29:51,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:29:51,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:29:51,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:29:51,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:29:51,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:29:51,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:29:51,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:29:51,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 02:29:51,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 02:29:51,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 02:29:51,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 02:29:51,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 02:29:51,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 02:29:51,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 02:29:51,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 02:29:51,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 02:29:51,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:29:51,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:29:51,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:29:51,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 02:29:51,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:29:51,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:29:51,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:29:51,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:29:51,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:29:51,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:29:51,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:29:51,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:29:51,576 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:29:51,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:29:51,577 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:29:51,577 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:29:51,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:29:51,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:29:51,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:29:51,578 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:29:51,578 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:29:51,578 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:29:51,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:29:51,579 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:29:51,579 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:29:51,579 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:29:51,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:29:51,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:29:51,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:29:51,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:29:51,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:29:51,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:29:51,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:29:51,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:29:51,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:29:51,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:29:52,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:29:52,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:29:52,021 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:29:52,022 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:29:52,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2022-10-16 02:29:52,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7b8b2319/e0f4224c5f0b4ba0b31fb4c0cd32039a/FLAG0e37a93eb [2022-10-16 02:29:52,897 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:29:52,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2022-10-16 02:29:52,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7b8b2319/e0f4224c5f0b4ba0b31fb4c0cd32039a/FLAG0e37a93eb [2022-10-16 02:29:53,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7b8b2319/e0f4224c5f0b4ba0b31fb4c0cd32039a [2022-10-16 02:29:53,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:29:53,164 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:29:53,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:29:53,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:29:53,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:29:53,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722081c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53, skipping insertion in model container [2022-10-16 02:29:53,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:29:53,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:29:53,629 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_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2022-10-16 02:29:53,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:29:53,658 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:29:53,775 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_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2022-10-16 02:29:53,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:29:53,812 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:29:53,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53 WrapperNode [2022-10-16 02:29:53,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:29:53,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:29:53,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:29:53,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:29:53,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,883 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 413 [2022-10-16 02:29:53,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:29:53,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:29:53,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:29:53,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:29:53,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,929 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:29:53,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:29:53,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:29:53,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:29:53,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (1/1) ... [2022-10-16 02:29:53,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:29:53,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:29:53,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 02:29:54,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 02:29:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:29:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2022-10-16 02:29:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2022-10-16 02:29:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 02:29:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 02:29:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2022-10-16 02:29:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2022-10-16 02:29:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2022-10-16 02:29:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2022-10-16 02:29:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2022-10-16 02:29:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2022-10-16 02:29:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:29:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:29:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:29:54,229 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:29:54,236 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:29:54,943 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:29:54,955 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:29:54,955 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 02:29:54,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:54 BoogieIcfgContainer [2022-10-16 02:29:54,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:29:54,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:29:54,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:29:54,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:29:54,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:29:53" (1/3) ... [2022-10-16 02:29:54,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be92eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:54, skipping insertion in model container [2022-10-16 02:29:54,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:53" (2/3) ... [2022-10-16 02:29:54,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be92eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:54, skipping insertion in model container [2022-10-16 02:29:54,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:54" (3/3) ... [2022-10-16 02:29:54,969 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2022-10-16 02:29:54,993 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:29:54,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:29:55,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:29:55,069 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;@7e4dd879, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:29:55,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:29:55,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 145 states have (on average 1.6137931034482758) internal successors, (234), 150 states have internal predecessors, (234), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-16 02:29:55,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 02:29:55,088 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:55,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:55,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:55,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:55,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1275728204, now seen corresponding path program 1 times [2022-10-16 02:29:55,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:55,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070946347] [2022-10-16 02:29:55,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:55,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:55,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:55,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:55,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070946347] [2022-10-16 02:29:55,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070946347] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:55,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:55,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:55,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597416643] [2022-10-16 02:29:55,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:55,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:55,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:55,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:55,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:55,557 INFO L87 Difference]: Start difference. First operand has 185 states, 145 states have (on average 1.6137931034482758) internal successors, (234), 150 states have internal predecessors, (234), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:29:55,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:55,674 INFO L93 Difference]: Finished difference Result 193 states and 301 transitions. [2022-10-16 02:29:55,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:55,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 02:29:55,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:55,700 INFO L225 Difference]: With dead ends: 193 [2022-10-16 02:29:55,700 INFO L226 Difference]: Without dead ends: 191 [2022-10-16 02:29:55,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:55,708 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 18 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:55,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 829 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:55,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-10-16 02:29:55,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 189. [2022-10-16 02:29:55,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 149 states have (on average 1.5302013422818792) internal successors, (228), 153 states have internal predecessors, (228), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-16 02:29:55,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 292 transitions. [2022-10-16 02:29:55,793 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 292 transitions. Word has length 15 [2022-10-16 02:29:55,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:55,794 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 292 transitions. [2022-10-16 02:29:55,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:29:55,794 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 292 transitions. [2022-10-16 02:29:55,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 02:29:55,797 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:55,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:55,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:29:55,798 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:55,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:55,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1833076436, now seen corresponding path program 1 times [2022-10-16 02:29:55,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:55,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661142722] [2022-10-16 02:29:55,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:55,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:55,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:55,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:55,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661142722] [2022-10-16 02:29:55,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661142722] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:55,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:55,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:55,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200417884] [2022-10-16 02:29:55,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:55,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:55,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:55,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:55,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:55,980 INFO L87 Difference]: Start difference. First operand 189 states and 292 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:29:56,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:56,089 INFO L93 Difference]: Finished difference Result 205 states and 313 transitions. [2022-10-16 02:29:56,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:56,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 02:29:56,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:56,101 INFO L225 Difference]: With dead ends: 205 [2022-10-16 02:29:56,101 INFO L226 Difference]: Without dead ends: 205 [2022-10-16 02:29:56,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:56,106 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 25 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:56,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 844 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:29:56,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-10-16 02:29:56,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 202. [2022-10-16 02:29:56,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 160 states have (on average 1.5125) internal successors, (242), 164 states have internal predecessors, (242), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-16 02:29:56,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 308 transitions. [2022-10-16 02:29:56,163 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 308 transitions. Word has length 16 [2022-10-16 02:29:56,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:56,164 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 308 transitions. [2022-10-16 02:29:56,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:29:56,164 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 308 transitions. [2022-10-16 02:29:56,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 02:29:56,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:56,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:56,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:29:56,169 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:56,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1800753107, now seen corresponding path program 1 times [2022-10-16 02:29:56,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:56,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619971906] [2022-10-16 02:29:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:56,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:56,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:56,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619971906] [2022-10-16 02:29:56,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619971906] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:56,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:56,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:29:56,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163790892] [2022-10-16 02:29:56,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:56,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:29:56,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:56,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:29:56,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:56,274 INFO L87 Difference]: Start difference. First operand 202 states and 308 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:56,296 INFO L93 Difference]: Finished difference Result 231 states and 353 transitions. [2022-10-16 02:29:56,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:29:56,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-10-16 02:29:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:56,300 INFO L225 Difference]: With dead ends: 231 [2022-10-16 02:29:56,300 INFO L226 Difference]: Without dead ends: 231 [2022-10-16 02:29:56,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:29:56,303 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 22 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:56,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 570 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:56,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-10-16 02:29:56,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 204. [2022-10-16 02:29:56,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 162 states have (on average 1.5061728395061729) internal successors, (244), 166 states have internal predecessors, (244), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-16 02:29:56,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 310 transitions. [2022-10-16 02:29:56,324 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 310 transitions. Word has length 16 [2022-10-16 02:29:56,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:56,325 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 310 transitions. [2022-10-16 02:29:56,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 02:29:56,325 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 310 transitions. [2022-10-16 02:29:56,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 02:29:56,326 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:56,327 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] [2022-10-16 02:29:56,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:29:56,327 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:56,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:56,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1559723364, now seen corresponding path program 1 times [2022-10-16 02:29:56,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:56,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386325372] [2022-10-16 02:29:56,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:56,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:56,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:56,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386325372] [2022-10-16 02:29:56,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386325372] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:56,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:56,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:56,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061317595] [2022-10-16 02:29:56,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:56,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:56,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:56,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:56,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:56,460 INFO L87 Difference]: Start difference. First operand 204 states and 310 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:29:56,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:56,536 INFO L93 Difference]: Finished difference Result 312 states and 485 transitions. [2022-10-16 02:29:56,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:56,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-10-16 02:29:56,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:56,543 INFO L225 Difference]: With dead ends: 312 [2022-10-16 02:29:56,543 INFO L226 Difference]: Without dead ends: 310 [2022-10-16 02:29:56,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:56,546 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 132 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:56,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 878 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:56,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-10-16 02:29:56,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 205. [2022-10-16 02:29:56,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 163 states have (on average 1.478527607361963) internal successors, (241), 167 states have internal predecessors, (241), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-16 02:29:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 307 transitions. [2022-10-16 02:29:56,571 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 307 transitions. Word has length 24 [2022-10-16 02:29:56,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:56,572 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 307 transitions. [2022-10-16 02:29:56,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:29:56,572 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 307 transitions. [2022-10-16 02:29:56,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 02:29:56,574 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:56,574 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:29:56,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:29:56,575 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:56,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:56,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1506243905, now seen corresponding path program 1 times [2022-10-16 02:29:56,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:56,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707814213] [2022-10-16 02:29:56,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:56,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:56,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:56,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707814213] [2022-10-16 02:29:56,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707814213] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:56,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:56,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:29:56,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133737098] [2022-10-16 02:29:56,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:56,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:29:56,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:56,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:29:56,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:56,717 INFO L87 Difference]: Start difference. First operand 205 states and 307 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:29:56,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:56,771 INFO L93 Difference]: Finished difference Result 211 states and 314 transitions. [2022-10-16 02:29:56,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:56,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-10-16 02:29:56,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:56,779 INFO L225 Difference]: With dead ends: 211 [2022-10-16 02:29:56,780 INFO L226 Difference]: Without dead ends: 207 [2022-10-16 02:29:56,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:56,794 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 0 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:56,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1112 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:56,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-10-16 02:29:56,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2022-10-16 02:29:56,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 163 states have (on average 1.4723926380368098) internal successors, (240), 167 states have internal predecessors, (240), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-16 02:29:56,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 306 transitions. [2022-10-16 02:29:56,839 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 306 transitions. Word has length 32 [2022-10-16 02:29:56,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:56,840 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 306 transitions. [2022-10-16 02:29:56,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:29:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 306 transitions. [2022-10-16 02:29:56,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 02:29:56,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:56,846 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:29:56,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:29:56,847 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:56,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:56,847 INFO L85 PathProgramCache]: Analyzing trace with hash -565240725, now seen corresponding path program 1 times [2022-10-16 02:29:56,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:56,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333242222] [2022-10-16 02:29:56,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:56,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:56,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:57,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:57,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333242222] [2022-10-16 02:29:57,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333242222] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:29:57,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850676009] [2022-10-16 02:29:57,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:57,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:29:57,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:29:57,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:29:57,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 02:29:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 02:29:57,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:29:57,220 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:57,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:29:57,306 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:29:57,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850676009] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:29:57,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:29:57,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-10-16 02:29:57,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918014405] [2022-10-16 02:29:57,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:29:57,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:29:57,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:57,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:29:57,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:57,310 INFO L87 Difference]: Start difference. First operand 205 states and 306 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:57,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:57,364 INFO L93 Difference]: Finished difference Result 264 states and 397 transitions. [2022-10-16 02:29:57,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:57,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 35 [2022-10-16 02:29:57,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:57,369 INFO L225 Difference]: With dead ends: 264 [2022-10-16 02:29:57,370 INFO L226 Difference]: Without dead ends: 264 [2022-10-16 02:29:57,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:57,379 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 66 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:57,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1098 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:57,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-10-16 02:29:57,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 258. [2022-10-16 02:29:57,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 206 states have (on average 1.4514563106796117) internal successors, (299), 210 states have internal predecessors, (299), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-10-16 02:29:57,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 385 transitions. [2022-10-16 02:29:57,410 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 385 transitions. Word has length 35 [2022-10-16 02:29:57,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:57,411 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 385 transitions. [2022-10-16 02:29:57,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:29:57,412 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 385 transitions. [2022-10-16 02:29:57,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 02:29:57,423 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:57,423 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:57,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 02:29:57,637 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,SelfDestructingSolverStorable5 [2022-10-16 02:29:57,638 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:57,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:57,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1852844213, now seen corresponding path program 2 times [2022-10-16 02:29:57,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:57,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227218590] [2022-10-16 02:29:57,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:57,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:29:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:29:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:57,854 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-16 02:29:57,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:57,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227218590] [2022-10-16 02:29:57,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227218590] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:57,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:57,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:57,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184497726] [2022-10-16 02:29:57,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:57,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:57,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:57,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:57,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:57,858 INFO L87 Difference]: Start difference. First operand 258 states and 385 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:29:57,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:57,901 INFO L93 Difference]: Finished difference Result 297 states and 432 transitions. [2022-10-16 02:29:57,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:57,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-10-16 02:29:57,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:57,904 INFO L225 Difference]: With dead ends: 297 [2022-10-16 02:29:57,905 INFO L226 Difference]: Without dead ends: 297 [2022-10-16 02:29:57,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:57,906 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 24 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:57,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 836 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:57,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-10-16 02:29:57,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 294. [2022-10-16 02:29:57,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 238 states have (on average 1.411764705882353) internal successors, (336), 242 states have internal predecessors, (336), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-10-16 02:29:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 428 transitions. [2022-10-16 02:29:57,930 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 428 transitions. Word has length 57 [2022-10-16 02:29:57,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:57,931 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 428 transitions. [2022-10-16 02:29:57,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:29:57,932 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 428 transitions. [2022-10-16 02:29:57,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 02:29:57,933 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:57,935 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:57,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:29:57,937 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:57,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:57,939 INFO L85 PathProgramCache]: Analyzing trace with hash 454021116, now seen corresponding path program 1 times [2022-10-16 02:29:57,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:57,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514326750] [2022-10-16 02:29:57,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:57,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:29:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:29:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,108 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-16 02:29:58,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:58,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514326750] [2022-10-16 02:29:58,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514326750] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:58,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:58,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:58,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858582966] [2022-10-16 02:29:58,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:58,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:58,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:58,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:58,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:58,112 INFO L87 Difference]: Start difference. First operand 294 states and 428 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:29:58,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:58,158 INFO L93 Difference]: Finished difference Result 303 states and 442 transitions. [2022-10-16 02:29:58,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:58,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-10-16 02:29:58,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:58,166 INFO L225 Difference]: With dead ends: 303 [2022-10-16 02:29:58,166 INFO L226 Difference]: Without dead ends: 303 [2022-10-16 02:29:58,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:58,168 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 19 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:58,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 822 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:58,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-10-16 02:29:58,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301. [2022-10-16 02:29:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 244 states have (on average 1.4098360655737705) internal successors, (344), 248 states have internal predecessors, (344), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-10-16 02:29:58,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 436 transitions. [2022-10-16 02:29:58,205 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 436 transitions. Word has length 57 [2022-10-16 02:29:58,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:58,207 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 436 transitions. [2022-10-16 02:29:58,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:29:58,208 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 436 transitions. [2022-10-16 02:29:58,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 02:29:58,211 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:58,211 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:29:58,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:29:58,211 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:58,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:58,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2109729607, now seen corresponding path program 1 times [2022-10-16 02:29:58,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:58,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85001839] [2022-10-16 02:29:58,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:58,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:29:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:29:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:29:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:29:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-16 02:29:58,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:58,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85001839] [2022-10-16 02:29:58,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85001839] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:58,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:58,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:29:58,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006528802] [2022-10-16 02:29:58,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:58,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:29:58,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:58,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:29:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:58,407 INFO L87 Difference]: Start difference. First operand 301 states and 436 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:29:58,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:58,438 INFO L93 Difference]: Finished difference Result 307 states and 442 transitions. [2022-10-16 02:29:58,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:58,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 75 [2022-10-16 02:29:58,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:58,443 INFO L225 Difference]: With dead ends: 307 [2022-10-16 02:29:58,443 INFO L226 Difference]: Without dead ends: 303 [2022-10-16 02:29:58,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:58,447 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 0 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:58,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1112 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:58,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-10-16 02:29:58,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301. [2022-10-16 02:29:58,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 244 states have (on average 1.3975409836065573) internal successors, (341), 248 states have internal predecessors, (341), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-10-16 02:29:58,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 433 transitions. [2022-10-16 02:29:58,473 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 433 transitions. Word has length 75 [2022-10-16 02:29:58,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:58,474 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 433 transitions. [2022-10-16 02:29:58,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:29:58,474 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 433 transitions. [2022-10-16 02:29:58,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 02:29:58,476 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:58,476 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:58,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:29:58,476 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:58,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:58,477 INFO L85 PathProgramCache]: Analyzing trace with hash -141659087, now seen corresponding path program 1 times [2022-10-16 02:29:58,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:58,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035592726] [2022-10-16 02:29:58,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:58,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:29:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:29:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:29:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:29:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:29:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:29:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,678 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-10-16 02:29:58,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:58,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035592726] [2022-10-16 02:29:58,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035592726] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:58,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:58,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:58,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555508100] [2022-10-16 02:29:58,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:58,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:58,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:58,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:58,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:58,682 INFO L87 Difference]: Start difference. First operand 301 states and 433 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:29:58,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:58,723 INFO L93 Difference]: Finished difference Result 345 states and 484 transitions. [2022-10-16 02:29:58,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:58,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 104 [2022-10-16 02:29:58,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:58,727 INFO L225 Difference]: With dead ends: 345 [2022-10-16 02:29:58,727 INFO L226 Difference]: Without dead ends: 345 [2022-10-16 02:29:58,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:58,748 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 25 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:58,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 836 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:58,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-10-16 02:29:58,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 342. [2022-10-16 02:29:58,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 281 states have (on average 1.3629893238434163) internal successors, (383), 285 states have internal predecessors, (383), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-10-16 02:29:58,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 481 transitions. [2022-10-16 02:29:58,763 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 481 transitions. Word has length 104 [2022-10-16 02:29:58,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:58,764 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 481 transitions. [2022-10-16 02:29:58,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:29:58,765 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 481 transitions. [2022-10-16 02:29:58,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:29:58,766 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:58,766 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:58,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:29:58,767 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:58,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:58,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1948803280, now seen corresponding path program 1 times [2022-10-16 02:29:58,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:58,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407170854] [2022-10-16 02:29:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:58,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:29:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:29:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:29:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:29:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:29:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:29:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:58,891 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-16 02:29:58,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:58,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407170854] [2022-10-16 02:29:58,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407170854] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:58,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:58,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:58,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161919677] [2022-10-16 02:29:58,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:58,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:58,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:58,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:58,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:58,894 INFO L87 Difference]: Start difference. First operand 342 states and 481 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:29:58,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:58,934 INFO L93 Difference]: Finished difference Result 336 states and 467 transitions. [2022-10-16 02:29:58,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:58,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 105 [2022-10-16 02:29:58,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:58,940 INFO L225 Difference]: With dead ends: 336 [2022-10-16 02:29:58,941 INFO L226 Difference]: Without dead ends: 336 [2022-10-16 02:29:58,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:58,942 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 15 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:58,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 795 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:58,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-10-16 02:29:58,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2022-10-16 02:29:58,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 276 states have (on average 1.3442028985507246) internal successors, (371), 280 states have internal predecessors, (371), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-10-16 02:29:58,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 467 transitions. [2022-10-16 02:29:58,958 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 467 transitions. Word has length 105 [2022-10-16 02:29:58,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:58,959 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 467 transitions. [2022-10-16 02:29:58,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-16 02:29:58,959 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 467 transitions. [2022-10-16 02:29:58,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-16 02:29:58,961 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:58,961 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:29:58,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:29:58,962 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:58,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1269637421, now seen corresponding path program 1 times [2022-10-16 02:29:58,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:58,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549390867] [2022-10-16 02:29:58,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:58,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:29:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:29:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:29:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:29:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:29:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:29:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:29:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:29:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,170 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-10-16 02:29:59,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:59,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549390867] [2022-10-16 02:29:59,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549390867] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:59,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:59,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:29:59,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715796193] [2022-10-16 02:29:59,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:59,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:29:59,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:59,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:29:59,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:59,177 INFO L87 Difference]: Start difference. First operand 336 states and 467 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:29:59,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:59,205 INFO L93 Difference]: Finished difference Result 342 states and 472 transitions. [2022-10-16 02:29:59,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:59,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 124 [2022-10-16 02:29:59,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:59,209 INFO L225 Difference]: With dead ends: 342 [2022-10-16 02:29:59,209 INFO L226 Difference]: Without dead ends: 338 [2022-10-16 02:29:59,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:59,210 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 0 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:59,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1097 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:59,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-10-16 02:29:59,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 336. [2022-10-16 02:29:59,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 276 states have (on average 1.3333333333333333) internal successors, (368), 280 states have internal predecessors, (368), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-10-16 02:29:59,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 464 transitions. [2022-10-16 02:29:59,230 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 464 transitions. Word has length 124 [2022-10-16 02:29:59,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:59,232 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 464 transitions. [2022-10-16 02:29:59,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:29:59,233 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 464 transitions. [2022-10-16 02:29:59,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-10-16 02:29:59,235 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:59,235 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:59,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:29:59,236 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:59,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:59,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1619775081, now seen corresponding path program 1 times [2022-10-16 02:29:59,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:59,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533548302] [2022-10-16 02:29:59,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:59,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:29:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:29:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:29:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:29:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:29:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:29:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:29:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:29:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:29:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:29:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-10-16 02:29:59,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:59,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533548302] [2022-10-16 02:29:59,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533548302] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:59,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:59,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:59,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472549473] [2022-10-16 02:29:59,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:59,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:59,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:59,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:59,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:59,461 INFO L87 Difference]: Start difference. First operand 336 states and 464 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:29:59,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:59,519 INFO L93 Difference]: Finished difference Result 334 states and 460 transitions. [2022-10-16 02:29:59,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:29:59,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 157 [2022-10-16 02:29:59,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:59,522 INFO L225 Difference]: With dead ends: 334 [2022-10-16 02:29:59,522 INFO L226 Difference]: Without dead ends: 334 [2022-10-16 02:29:59,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:59,524 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 13 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:59,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 763 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:59,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-10-16 02:29:59,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-10-16 02:29:59,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 275 states have (on average 1.3309090909090908) internal successors, (366), 279 states have internal predecessors, (366), 47 states have call successors, (47), 10 states have call predecessors, (47), 10 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-10-16 02:29:59,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 460 transitions. [2022-10-16 02:29:59,552 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 460 transitions. Word has length 157 [2022-10-16 02:29:59,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:59,553 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 460 transitions. [2022-10-16 02:29:59,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 02:29:59,553 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 460 transitions. [2022-10-16 02:29:59,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-10-16 02:29:59,556 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:59,557 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:59,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:29:59,557 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:59,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:59,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1472798741, now seen corresponding path program 1 times [2022-10-16 02:29:59,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:59,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303306440] [2022-10-16 02:29:59,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:59,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:29:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:29:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:29:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:29:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:29:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:29:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:29:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:29:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:29:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:29:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:29:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-10-16 02:29:59,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:29:59,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303306440] [2022-10-16 02:29:59,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303306440] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:29:59,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:29:59,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:29:59,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399078118] [2022-10-16 02:29:59,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:29:59,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:29:59,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:29:59,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:29:59,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:29:59,783 INFO L87 Difference]: Start difference. First operand 334 states and 460 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:59,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:29:59,832 INFO L93 Difference]: Finished difference Result 337 states and 462 transitions. [2022-10-16 02:29:59,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:29:59,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 172 [2022-10-16 02:29:59,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:29:59,836 INFO L225 Difference]: With dead ends: 337 [2022-10-16 02:29:59,836 INFO L226 Difference]: Without dead ends: 317 [2022-10-16 02:29:59,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:29:59,837 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 35 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:29:59,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 744 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:29:59,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-10-16 02:29:59,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2022-10-16 02:29:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 261 states have (on average 1.3218390804597702) internal successors, (345), 265 states have internal predecessors, (345), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-10-16 02:29:59,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 433 transitions. [2022-10-16 02:29:59,851 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 433 transitions. Word has length 172 [2022-10-16 02:29:59,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:29:59,851 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 433 transitions. [2022-10-16 02:29:59,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:29:59,852 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 433 transitions. [2022-10-16 02:29:59,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-16 02:29:59,854 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:29:59,855 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:29:59,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:29:59,855 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:29:59,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:29:59,856 INFO L85 PathProgramCache]: Analyzing trace with hash -125310168, now seen corresponding path program 1 times [2022-10-16 02:29:59,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:29:59,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366954532] [2022-10-16 02:29:59,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:29:59,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:29:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:29:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:29:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:29:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:29:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:29:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:29:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:29:59,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-10-16 02:30:00,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:00,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366954532] [2022-10-16 02:30:00,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366954532] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:00,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:00,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:00,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413298385] [2022-10-16 02:30:00,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:00,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:00,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:00,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:00,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:00,067 INFO L87 Difference]: Start difference. First operand 317 states and 433 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:00,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:00,123 INFO L93 Difference]: Finished difference Result 320 states and 435 transitions. [2022-10-16 02:30:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:00,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 174 [2022-10-16 02:30:00,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:00,126 INFO L225 Difference]: With dead ends: 320 [2022-10-16 02:30:00,127 INFO L226 Difference]: Without dead ends: 298 [2022-10-16 02:30:00,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:00,129 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 30 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:00,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 748 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:00,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-10-16 02:30:00,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2022-10-16 02:30:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 245 states have (on average 1.3142857142857143) internal successors, (322), 249 states have internal predecessors, (322), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-16 02:30:00,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 404 transitions. [2022-10-16 02:30:00,156 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 404 transitions. Word has length 174 [2022-10-16 02:30:00,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:00,157 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 404 transitions. [2022-10-16 02:30:00,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 02:30:00,158 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 404 transitions. [2022-10-16 02:30:00,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-10-16 02:30:00,161 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:00,161 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:00,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:30:00,162 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:00,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:00,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1733940995, now seen corresponding path program 1 times [2022-10-16 02:30:00,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:00,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672993836] [2022-10-16 02:30:00,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:00,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-10-16 02:30:00,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:00,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672993836] [2022-10-16 02:30:00,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672993836] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:00,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:00,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:00,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924368823] [2022-10-16 02:30:00,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:00,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:00,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:00,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:00,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:00,394 INFO L87 Difference]: Start difference. First operand 298 states and 404 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-16 02:30:00,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:00,416 INFO L93 Difference]: Finished difference Result 302 states and 407 transitions. [2022-10-16 02:30:00,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:00,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 175 [2022-10-16 02:30:00,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:00,420 INFO L225 Difference]: With dead ends: 302 [2022-10-16 02:30:00,420 INFO L226 Difference]: Without dead ends: 298 [2022-10-16 02:30:00,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:00,421 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 0 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:00,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1076 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-10-16 02:30:00,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2022-10-16 02:30:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 245 states have (on average 1.2897959183673469) internal successors, (316), 249 states have internal predecessors, (316), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-16 02:30:00,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 398 transitions. [2022-10-16 02:30:00,436 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 398 transitions. Word has length 175 [2022-10-16 02:30:00,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:00,440 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 398 transitions. [2022-10-16 02:30:00,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-16 02:30:00,440 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 398 transitions. [2022-10-16 02:30:00,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 02:30:00,444 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:00,445 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:00,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:30:00,446 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:00,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:00,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1527748242, now seen corresponding path program 1 times [2022-10-16 02:30:00,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:00,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613370870] [2022-10-16 02:30:00,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:00,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-10-16 02:30:00,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:00,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613370870] [2022-10-16 02:30:00,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613370870] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:00,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33190831] [2022-10-16 02:30:00,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:00,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:00,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:00,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:00,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 02:30:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:00,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:30:01,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:01,115 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-10-16 02:30:01,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:01,264 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-10-16 02:30:01,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33190831] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:01,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 02:30:01,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 5 [2022-10-16 02:30:01,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271625177] [2022-10-16 02:30:01,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:01,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:01,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:01,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:01,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:01,268 INFO L87 Difference]: Start difference. First operand 298 states and 398 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 02:30:01,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:01,310 INFO L93 Difference]: Finished difference Result 321 states and 427 transitions. [2022-10-16 02:30:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:30:01,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 182 [2022-10-16 02:30:01,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:01,314 INFO L225 Difference]: With dead ends: 321 [2022-10-16 02:30:01,314 INFO L226 Difference]: Without dead ends: 277 [2022-10-16 02:30:01,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:01,315 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 35 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:01,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 511 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:01,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-10-16 02:30:01,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2022-10-16 02:30:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 227 states have (on average 1.2819383259911894) internal successors, (291), 231 states have internal predecessors, (291), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-10-16 02:30:01,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 367 transitions. [2022-10-16 02:30:01,330 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 367 transitions. Word has length 182 [2022-10-16 02:30:01,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:01,331 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 367 transitions. [2022-10-16 02:30:01,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 02:30:01,331 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 367 transitions. [2022-10-16 02:30:01,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-10-16 02:30:01,335 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:01,335 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:01,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:01,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 02:30:01,548 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:01,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:01,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1480625403, now seen corresponding path program 1 times [2022-10-16 02:30:01,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:01,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811675073] [2022-10-16 02:30:01,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:01,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,749 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-10-16 02:30:01,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:01,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811675073] [2022-10-16 02:30:01,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811675073] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:01,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:01,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:01,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776963978] [2022-10-16 02:30:01,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:01,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:01,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:01,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:01,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:01,752 INFO L87 Difference]: Start difference. First operand 277 states and 367 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-16 02:30:01,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:01,779 INFO L93 Difference]: Finished difference Result 283 states and 373 transitions. [2022-10-16 02:30:01,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:01,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 206 [2022-10-16 02:30:01,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:01,783 INFO L225 Difference]: With dead ends: 283 [2022-10-16 02:30:01,783 INFO L226 Difference]: Without dead ends: 283 [2022-10-16 02:30:01,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:01,784 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 6 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:01,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 788 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:01,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-10-16 02:30:01,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2022-10-16 02:30:01,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 230 states have (on average 1.2782608695652173) internal successors, (294), 234 states have internal predecessors, (294), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-10-16 02:30:01,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 370 transitions. [2022-10-16 02:30:01,796 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 370 transitions. Word has length 206 [2022-10-16 02:30:01,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:01,796 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 370 transitions. [2022-10-16 02:30:01,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-16 02:30:01,797 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 370 transitions. [2022-10-16 02:30:01,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-10-16 02:30:01,799 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:01,800 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:30:01,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:30:01,800 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:01,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:01,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2103537080, now seen corresponding path program 1 times [2022-10-16 02:30:01,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:01,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334183313] [2022-10-16 02:30:01,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:01,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:01,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,050 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-10-16 02:30:02,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:02,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334183313] [2022-10-16 02:30:02,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334183313] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:02,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963220003] [2022-10-16 02:30:02,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:02,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:02,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:02,052 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:02,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 02:30:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:30:02,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:02,254 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-10-16 02:30:02,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:02,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963220003] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:02,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:02,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 02:30:02,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778332749] [2022-10-16 02:30:02,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:02,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:02,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:02,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:02,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:02,256 INFO L87 Difference]: Start difference. First operand 281 states and 370 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-16 02:30:02,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:02,285 INFO L93 Difference]: Finished difference Result 288 states and 376 transitions. [2022-10-16 02:30:02,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:02,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 215 [2022-10-16 02:30:02,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:02,289 INFO L225 Difference]: With dead ends: 288 [2022-10-16 02:30:02,289 INFO L226 Difference]: Without dead ends: 288 [2022-10-16 02:30:02,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:02,290 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 7 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:02,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 793 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:02,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-10-16 02:30:02,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 286. [2022-10-16 02:30:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 234 states have (on average 1.2735042735042734) internal successors, (298), 238 states have internal predecessors, (298), 38 states have call successors, (38), 12 states have call predecessors, (38), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-10-16 02:30:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 374 transitions. [2022-10-16 02:30:02,302 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 374 transitions. Word has length 215 [2022-10-16 02:30:02,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:02,302 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 374 transitions. [2022-10-16 02:30:02,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-16 02:30:02,303 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 374 transitions. [2022-10-16 02:30:02,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-16 02:30:02,306 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:02,306 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:30:02,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:02,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:02,520 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:02,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:02,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2043479794, now seen corresponding path program 1 times [2022-10-16 02:30:02,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:02,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499945081] [2022-10-16 02:30:02,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:02,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:30:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2022-10-16 02:30:02,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:02,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499945081] [2022-10-16 02:30:02,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499945081] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:02,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109447205] [2022-10-16 02:30:02,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:02,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:02,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:02,790 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:02,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 02:30:03,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:30:03,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:03,051 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2022-10-16 02:30:03,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:03,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109447205] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:03,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:03,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 02:30:03,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038291097] [2022-10-16 02:30:03,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:03,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:03,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:03,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:03,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:03,054 INFO L87 Difference]: Start difference. First operand 286 states and 374 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 02:30:03,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:03,081 INFO L93 Difference]: Finished difference Result 285 states and 369 transitions. [2022-10-16 02:30:03,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:30:03,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 225 [2022-10-16 02:30:03,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:03,085 INFO L225 Difference]: With dead ends: 285 [2022-10-16 02:30:03,085 INFO L226 Difference]: Without dead ends: 285 [2022-10-16 02:30:03,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:03,086 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 7 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:03,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 779 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:03,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-10-16 02:30:03,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-10-16 02:30:03,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 234 states have (on average 1.2606837606837606) internal successors, (295), 237 states have internal predecessors, (295), 37 states have call successors, (37), 12 states have call predecessors, (37), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-10-16 02:30:03,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 369 transitions. [2022-10-16 02:30:03,099 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 369 transitions. Word has length 225 [2022-10-16 02:30:03,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:03,099 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 369 transitions. [2022-10-16 02:30:03,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 02:30:03,100 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 369 transitions. [2022-10-16 02:30:03,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-10-16 02:30:03,103 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:03,103 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:30:03,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:03,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:03,319 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:03,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:03,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1193378893, now seen corresponding path program 1 times [2022-10-16 02:30:03,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:03,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636502943] [2022-10-16 02:30:03,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:03,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:30:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:30:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-10-16 02:30:03,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:03,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636502943] [2022-10-16 02:30:03,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636502943] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:03,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:03,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:03,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917719784] [2022-10-16 02:30:03,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:03,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:03,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:03,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:03,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:03,573 INFO L87 Difference]: Start difference. First operand 285 states and 369 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 02:30:03,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:03,790 INFO L93 Difference]: Finished difference Result 327 states and 436 transitions. [2022-10-16 02:30:03,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:30:03,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 234 [2022-10-16 02:30:03,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:03,793 INFO L225 Difference]: With dead ends: 327 [2022-10-16 02:30:03,793 INFO L226 Difference]: Without dead ends: 327 [2022-10-16 02:30:03,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:03,794 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 188 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:03,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 640 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:30:03,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-10-16 02:30:03,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 284. [2022-10-16 02:30:03,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 234 states have (on average 1.2564102564102564) internal successors, (294), 236 states have internal predecessors, (294), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-10-16 02:30:03,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 366 transitions. [2022-10-16 02:30:03,805 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 366 transitions. Word has length 234 [2022-10-16 02:30:03,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:03,806 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 366 transitions. [2022-10-16 02:30:03,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 02:30:03,806 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 366 transitions. [2022-10-16 02:30:03,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-10-16 02:30:03,810 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:03,810 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:30:03,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:30:03,811 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:03,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:03,811 INFO L85 PathProgramCache]: Analyzing trace with hash 2139740137, now seen corresponding path program 1 times [2022-10-16 02:30:03,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:03,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812846333] [2022-10-16 02:30:03,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:03,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:30:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:30:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,188 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-10-16 02:30:04,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:04,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812846333] [2022-10-16 02:30:04,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812846333] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:04,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:04,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:04,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933889002] [2022-10-16 02:30:04,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:04,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:04,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:04,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:04,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:04,191 INFO L87 Difference]: Start difference. First operand 284 states and 366 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 02:30:04,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:04,726 INFO L93 Difference]: Finished difference Result 510 states and 663 transitions. [2022-10-16 02:30:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 02:30:04,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 237 [2022-10-16 02:30:04,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:04,730 INFO L225 Difference]: With dead ends: 510 [2022-10-16 02:30:04,730 INFO L226 Difference]: Without dead ends: 510 [2022-10-16 02:30:04,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:30:04,731 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 422 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:04,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 806 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 02:30:04,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-10-16 02:30:04,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 444. [2022-10-16 02:30:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 364 states have (on average 1.3021978021978022) internal successors, (474), 367 states have internal predecessors, (474), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-10-16 02:30:04,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 582 transitions. [2022-10-16 02:30:04,748 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 582 transitions. Word has length 237 [2022-10-16 02:30:04,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:04,748 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 582 transitions. [2022-10-16 02:30:04,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 02:30:04,749 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 582 transitions. [2022-10-16 02:30:04,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-10-16 02:30:04,753 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:04,753 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:04,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 02:30:04,754 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:04,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:04,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1607498926, now seen corresponding path program 1 times [2022-10-16 02:30:04,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:04,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524164993] [2022-10-16 02:30:04,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:04,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:04,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:30:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:30:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-10-16 02:30:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-10-16 02:30:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-16 02:30:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,027 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-10-16 02:30:05,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:05,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524164993] [2022-10-16 02:30:05,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524164993] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:05,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:05,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:05,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173503321] [2022-10-16 02:30:05,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:05,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:05,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:05,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:05,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:05,031 INFO L87 Difference]: Start difference. First operand 444 states and 582 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-16 02:30:05,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:05,400 INFO L93 Difference]: Finished difference Result 701 states and 941 transitions. [2022-10-16 02:30:05,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:05,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 264 [2022-10-16 02:30:05,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:05,408 INFO L225 Difference]: With dead ends: 701 [2022-10-16 02:30:05,408 INFO L226 Difference]: Without dead ends: 701 [2022-10-16 02:30:05,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:05,409 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 220 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:05,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 601 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:30:05,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2022-10-16 02:30:05,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 536. [2022-10-16 02:30:05,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 446 states have (on average 1.311659192825112) internal successors, (585), 450 states have internal predecessors, (585), 59 states have call successors, (59), 29 states have call predecessors, (59), 29 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-10-16 02:30:05,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 703 transitions. [2022-10-16 02:30:05,436 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 703 transitions. Word has length 264 [2022-10-16 02:30:05,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:05,437 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 703 transitions. [2022-10-16 02:30:05,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-16 02:30:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 703 transitions. [2022-10-16 02:30:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-10-16 02:30:05,442 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:05,442 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:05,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 02:30:05,443 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:05,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:05,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1599801927, now seen corresponding path program 1 times [2022-10-16 02:30:05,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:05,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667377760] [2022-10-16 02:30:05,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:05,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:30:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:30:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-10-16 02:30:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-10-16 02:30:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-10-16 02:30:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:05,725 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-10-16 02:30:05,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:05,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667377760] [2022-10-16 02:30:05,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667377760] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:05,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:05,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:30:05,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605493936] [2022-10-16 02:30:05,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:05,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:05,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:05,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:05,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:30:05,730 INFO L87 Difference]: Start difference. First operand 536 states and 703 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-16 02:30:06,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:06,077 INFO L93 Difference]: Finished difference Result 839 states and 1124 transitions. [2022-10-16 02:30:06,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:06,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 265 [2022-10-16 02:30:06,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:06,083 INFO L225 Difference]: With dead ends: 839 [2022-10-16 02:30:06,083 INFO L226 Difference]: Without dead ends: 839 [2022-10-16 02:30:06,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:06,085 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 223 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:06,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 635 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:30:06,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2022-10-16 02:30:06,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 658. [2022-10-16 02:30:06,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 556 states have (on average 1.3219424460431655) internal successors, (735), 562 states have internal predecessors, (735), 65 states have call successors, (65), 35 states have call predecessors, (65), 35 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-10-16 02:30:06,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 865 transitions. [2022-10-16 02:30:06,113 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 865 transitions. Word has length 265 [2022-10-16 02:30:06,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:06,114 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 865 transitions. [2022-10-16 02:30:06,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-16 02:30:06,114 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 865 transitions. [2022-10-16 02:30:06,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-10-16 02:30:06,119 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:06,119 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:30:06,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 02:30:06,120 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:06,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:06,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1874664875, now seen corresponding path program 1 times [2022-10-16 02:30:06,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:06,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789769919] [2022-10-16 02:30:06,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:06,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-10-16 02:30:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-10-16 02:30:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2022-10-16 02:30:06,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:06,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789769919] [2022-10-16 02:30:06,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789769919] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:06,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37449783] [2022-10-16 02:30:06,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:06,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:06,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:06,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:06,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 02:30:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:06,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 02:30:06,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:06,850 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-10-16 02:30:06,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:06,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37449783] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:06,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:06,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-10-16 02:30:06,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501486876] [2022-10-16 02:30:06,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:06,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:06,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:06,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:06,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:30:06,853 INFO L87 Difference]: Start difference. First operand 658 states and 865 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:30:06,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:06,929 INFO L93 Difference]: Finished difference Result 670 states and 871 transitions. [2022-10-16 02:30:06,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:06,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 266 [2022-10-16 02:30:06,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:06,935 INFO L225 Difference]: With dead ends: 670 [2022-10-16 02:30:06,935 INFO L226 Difference]: Without dead ends: 658 [2022-10-16 02:30:06,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:30:06,936 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 51 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:06,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 696 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:06,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-10-16 02:30:06,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2022-10-16 02:30:06,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 556 states have (on average 1.3111510791366907) internal successors, (729), 562 states have internal predecessors, (729), 65 states have call successors, (65), 35 states have call predecessors, (65), 35 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-10-16 02:30:06,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 859 transitions. [2022-10-16 02:30:06,969 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 859 transitions. Word has length 266 [2022-10-16 02:30:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:06,971 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 859 transitions. [2022-10-16 02:30:06,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:30:06,973 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 859 transitions. [2022-10-16 02:30:06,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-10-16 02:30:06,978 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:06,978 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:30:07,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:07,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-16 02:30:07,193 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:07,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:07,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1825674308, now seen corresponding path program 1 times [2022-10-16 02:30:07,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:07,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535844462] [2022-10-16 02:30:07,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:07,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-10-16 02:30:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,568 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2022-10-16 02:30:07,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:07,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535844462] [2022-10-16 02:30:07,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535844462] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:07,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503264979] [2022-10-16 02:30:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:07,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:07,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:07,573 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:07,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 02:30:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:07,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 02:30:07,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:07,834 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2022-10-16 02:30:07,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:07,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503264979] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:07,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:07,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-10-16 02:30:07,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570362990] [2022-10-16 02:30:07,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:07,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:07,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:07,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:07,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:30:07,839 INFO L87 Difference]: Start difference. First operand 658 states and 859 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:30:07,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:07,903 INFO L93 Difference]: Finished difference Result 670 states and 873 transitions. [2022-10-16 02:30:07,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:07,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 267 [2022-10-16 02:30:07,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:07,909 INFO L225 Difference]: With dead ends: 670 [2022-10-16 02:30:07,909 INFO L226 Difference]: Without dead ends: 670 [2022-10-16 02:30:07,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:30:07,910 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 15 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:07,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 719 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:07,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-10-16 02:30:07,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2022-10-16 02:30:07,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 566 states have (on average 1.312720848056537) internal successors, (743), 572 states have internal predecessors, (743), 65 states have call successors, (65), 37 states have call predecessors, (65), 37 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-10-16 02:30:07,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 873 transitions. [2022-10-16 02:30:07,939 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 873 transitions. Word has length 267 [2022-10-16 02:30:07,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:07,940 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 873 transitions. [2022-10-16 02:30:07,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 02:30:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 873 transitions. [2022-10-16 02:30:07,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-10-16 02:30:07,945 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:07,945 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:07,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:08,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 02:30:08,159 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:08,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:08,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1132874671, now seen corresponding path program 1 times [2022-10-16 02:30:08,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:08,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359683075] [2022-10-16 02:30:08,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:08,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:08,825 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-10-16 02:30:08,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:08,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359683075] [2022-10-16 02:30:08,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359683075] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:08,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:08,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:30:08,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31985162] [2022-10-16 02:30:08,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:08,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:30:08,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:08,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:30:08,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:08,828 INFO L87 Difference]: Start difference. First operand 670 states and 873 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-10-16 02:30:09,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:09,360 INFO L93 Difference]: Finished difference Result 943 states and 1297 transitions. [2022-10-16 02:30:09,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 02:30:09,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 268 [2022-10-16 02:30:09,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:09,367 INFO L225 Difference]: With dead ends: 943 [2022-10-16 02:30:09,367 INFO L226 Difference]: Without dead ends: 943 [2022-10-16 02:30:09,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:30:09,368 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 266 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:09,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1681 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:30:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2022-10-16 02:30:09,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 676. [2022-10-16 02:30:09,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 570 states have (on average 1.3105263157894738) internal successors, (747), 577 states have internal predecessors, (747), 66 states have call successors, (66), 38 states have call predecessors, (66), 38 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2022-10-16 02:30:09,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 879 transitions. [2022-10-16 02:30:09,395 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 879 transitions. Word has length 268 [2022-10-16 02:30:09,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:09,395 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 879 transitions. [2022-10-16 02:30:09,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-10-16 02:30:09,396 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 879 transitions. [2022-10-16 02:30:09,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-10-16 02:30:09,400 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:09,401 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:09,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-10-16 02:30:09,401 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:09,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:09,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1514511186, now seen corresponding path program 1 times [2022-10-16 02:30:09,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:09,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134624891] [2022-10-16 02:30:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:09,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-10-16 02:30:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-10-16 02:30:09,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:09,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134624891] [2022-10-16 02:30:09,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134624891] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:09,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827802375] [2022-10-16 02:30:09,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:09,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:09,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:09,702 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:09,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 02:30:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:09,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 02:30:09,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:10,049 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-10-16 02:30:10,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:10,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827802375] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:10,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:10,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 02:30:10,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640960965] [2022-10-16 02:30:10,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:10,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:30:10,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:10,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:30:10,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:10,053 INFO L87 Difference]: Start difference. First operand 676 states and 879 transitions. Second operand has 3 states, 2 states have (on average 48.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 02:30:10,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:10,087 INFO L93 Difference]: Finished difference Result 675 states and 878 transitions. [2022-10-16 02:30:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:30:10,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 48.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 273 [2022-10-16 02:30:10,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:10,092 INFO L225 Difference]: With dead ends: 675 [2022-10-16 02:30:10,093 INFO L226 Difference]: Without dead ends: 673 [2022-10-16 02:30:10,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:10,094 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 100 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:10,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 328 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:10,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-10-16 02:30:10,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2022-10-16 02:30:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 568 states have (on average 1.3098591549295775) internal successors, (744), 574 states have internal predecessors, (744), 66 states have call successors, (66), 38 states have call predecessors, (66), 38 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2022-10-16 02:30:10,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 876 transitions. [2022-10-16 02:30:10,118 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 876 transitions. Word has length 273 [2022-10-16 02:30:10,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:10,119 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 876 transitions. [2022-10-16 02:30:10,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 48.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 02:30:10,119 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 876 transitions. [2022-10-16 02:30:10,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-10-16 02:30:10,125 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:10,125 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:10,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:10,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:10,338 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:10,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:10,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1582528366, now seen corresponding path program 1 times [2022-10-16 02:30:10,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:10,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955202164] [2022-10-16 02:30:10,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:10,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-10-16 02:30:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,792 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 142 proven. 27 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-10-16 02:30:10,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:10,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955202164] [2022-10-16 02:30:10,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955202164] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:10,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032823040] [2022-10-16 02:30:10,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:10,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:10,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:10,795 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:10,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 02:30:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:10,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 02:30:11,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 251 proven. 33 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-10-16 02:30:11,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:11,658 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 146 proven. 23 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-10-16 02:30:11,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032823040] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:11,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:11,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 19 [2022-10-16 02:30:11,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892305101] [2022-10-16 02:30:11,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:11,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 02:30:11,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:11,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 02:30:11,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-10-16 02:30:11,662 INFO L87 Difference]: Start difference. First operand 673 states and 876 transitions. Second operand has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 14 states have internal predecessors, (150), 5 states have call successors, (28), 5 states have call predecessors, (28), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2022-10-16 02:30:13,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:13,669 INFO L93 Difference]: Finished difference Result 1517 states and 2126 transitions. [2022-10-16 02:30:13,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 02:30:13,670 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 14 states have internal predecessors, (150), 5 states have call successors, (28), 5 states have call predecessors, (28), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) Word has length 276 [2022-10-16 02:30:13,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:13,679 INFO L225 Difference]: With dead ends: 1517 [2022-10-16 02:30:13,679 INFO L226 Difference]: Without dead ends: 1517 [2022-10-16 02:30:13,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 593 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1121, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 02:30:13,682 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 787 mSDsluCounter, 2526 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:13,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 2908 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 02:30:13,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2022-10-16 02:30:13,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 940. [2022-10-16 02:30:13,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 795 states have (on average 1.3018867924528301) internal successors, (1035), 802 states have internal predecessors, (1035), 90 states have call successors, (90), 51 states have call predecessors, (90), 54 states have return successors, (95), 90 states have call predecessors, (95), 90 states have call successors, (95) [2022-10-16 02:30:13,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1220 transitions. [2022-10-16 02:30:13,732 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1220 transitions. Word has length 276 [2022-10-16 02:30:13,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:13,733 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1220 transitions. [2022-10-16 02:30:13,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 14 states have internal predecessors, (150), 5 states have call successors, (28), 5 states have call predecessors, (28), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2022-10-16 02:30:13,733 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1220 transitions. [2022-10-16 02:30:13,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-10-16 02:30:13,736 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:13,736 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:13,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:13,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 02:30:13,952 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:13,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:13,953 INFO L85 PathProgramCache]: Analyzing trace with hash -620914349, now seen corresponding path program 1 times [2022-10-16 02:30:13,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:13,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048496052] [2022-10-16 02:30:13,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:13,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-10-16 02:30:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,166 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2022-10-16 02:30:14,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:14,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048496052] [2022-10-16 02:30:14,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048496052] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:14,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101393957] [2022-10-16 02:30:14,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:14,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:14,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:14,168 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:14,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 02:30:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:30:14,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2022-10-16 02:30:14,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:14,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101393957] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:14,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:14,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 02:30:14,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868835781] [2022-10-16 02:30:14,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:14,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:14,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:14,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:14,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:14,403 INFO L87 Difference]: Start difference. First operand 940 states and 1220 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 02:30:14,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:14,504 INFO L93 Difference]: Finished difference Result 930 states and 1193 transitions. [2022-10-16 02:30:14,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:14,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 276 [2022-10-16 02:30:14,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:14,510 INFO L225 Difference]: With dead ends: 930 [2022-10-16 02:30:14,510 INFO L226 Difference]: Without dead ends: 924 [2022-10-16 02:30:14,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:14,511 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 11 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:14,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 710 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:30:14,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-10-16 02:30:14,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 924. [2022-10-16 02:30:14,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 784 states have (on average 1.2895408163265305) internal successors, (1011), 791 states have internal predecessors, (1011), 86 states have call successors, (86), 51 states have call predecessors, (86), 53 states have return successors, (90), 85 states have call predecessors, (90), 86 states have call successors, (90) [2022-10-16 02:30:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1187 transitions. [2022-10-16 02:30:14,540 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1187 transitions. Word has length 276 [2022-10-16 02:30:14,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:14,540 INFO L495 AbstractCegarLoop]: Abstraction has 924 states and 1187 transitions. [2022-10-16 02:30:14,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 02:30:14,541 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1187 transitions. [2022-10-16 02:30:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-10-16 02:30:14,544 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:14,544 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:14,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:14,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:14,759 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:14,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:14,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1522361742, now seen corresponding path program 1 times [2022-10-16 02:30:14,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:14,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245300809] [2022-10-16 02:30:14,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:14,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 02:30:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 02:30:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-10-16 02:30:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-10-16 02:30:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-10-16 02:30:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-10-16 02:30:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-10-16 02:30:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-10-16 02:30:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-10-16 02:30:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:14,993 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 121 proven. 19 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2022-10-16 02:30:14,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:14,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245300809] [2022-10-16 02:30:14,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245300809] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:14,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067679471] [2022-10-16 02:30:14,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:14,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:14,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:14,996 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:15,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 02:30:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:15,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:30:15,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:15,218 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-10-16 02:30:15,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:15,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067679471] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:15,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:15,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 02:30:15,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694062052] [2022-10-16 02:30:15,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:15,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:30:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:15,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:30:15,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:15,221 INFO L87 Difference]: Start difference. First operand 924 states and 1187 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 02:30:15,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:15,275 INFO L93 Difference]: Finished difference Result 779 states and 994 transitions. [2022-10-16 02:30:15,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:30:15,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 279 [2022-10-16 02:30:15,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:15,279 INFO L225 Difference]: With dead ends: 779 [2022-10-16 02:30:15,280 INFO L226 Difference]: Without dead ends: 764 [2022-10-16 02:30:15,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:30:15,280 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 8 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:15,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 713 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:30:15,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-10-16 02:30:15,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 764. [2022-10-16 02:30:15,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 642 states have (on average 1.2850467289719627) internal successors, (825), 649 states have internal predecessors, (825), 77 states have call successors, (77), 44 states have call predecessors, (77), 44 states have return successors, (77), 74 states have call predecessors, (77), 77 states have call successors, (77) [2022-10-16 02:30:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 979 transitions. [2022-10-16 02:30:15,303 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 979 transitions. Word has length 279 [2022-10-16 02:30:15,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:15,304 INFO L495 AbstractCegarLoop]: Abstraction has 764 states and 979 transitions. [2022-10-16 02:30:15,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 02:30:15,304 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 979 transitions. [2022-10-16 02:30:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-10-16 02:30:15,306 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:15,307 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 8, 8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:30:15,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:15,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-10-16 02:30:15,522 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:15,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:15,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1287777471, now seen corresponding path program 1 times [2022-10-16 02:30:15,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:15,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319520089] [2022-10-16 02:30:15,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:15,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-10-16 02:30:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-16 02:30:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 02:30:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,645 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 16 proven. 146 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2022-10-16 02:30:16,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:16,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319520089] [2022-10-16 02:30:16,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319520089] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:16,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157411328] [2022-10-16 02:30:16,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:16,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:16,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:16,649 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:16,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 02:30:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:16,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 02:30:16,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:17,112 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-10-16 02:30:17,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:17,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157411328] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:17,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:17,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 23 [2022-10-16 02:30:17,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317704180] [2022-10-16 02:30:17,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:17,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:30:17,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:17,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:30:17,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2022-10-16 02:30:17,116 INFO L87 Difference]: Start difference. First operand 764 states and 979 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-10-16 02:30:17,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:17,970 INFO L93 Difference]: Finished difference Result 1672 states and 2210 transitions. [2022-10-16 02:30:17,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 02:30:17,970 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 291 [2022-10-16 02:30:17,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:17,980 INFO L225 Difference]: With dead ends: 1672 [2022-10-16 02:30:17,981 INFO L226 Difference]: Without dead ends: 1672 [2022-10-16 02:30:17,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=174, Invalid=1386, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 02:30:17,984 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 1216 mSDsluCounter, 2853 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:17,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 3254 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 02:30:17,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2022-10-16 02:30:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 919. [2022-10-16 02:30:18,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 766 states have (on average 1.2845953002610966) internal successors, (984), 774 states have internal predecessors, (984), 98 states have call successors, (98), 54 states have call predecessors, (98), 54 states have return successors, (98), 94 states have call predecessors, (98), 98 states have call successors, (98) [2022-10-16 02:30:18,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1180 transitions. [2022-10-16 02:30:18,020 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1180 transitions. Word has length 291 [2022-10-16 02:30:18,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:18,021 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1180 transitions. [2022-10-16 02:30:18,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-10-16 02:30:18,021 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1180 transitions. [2022-10-16 02:30:18,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-10-16 02:30:18,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:18,024 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:30:18,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:18,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-10-16 02:30:18,240 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:18,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:18,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1938220260, now seen corresponding path program 1 times [2022-10-16 02:30:18,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:18,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940730700] [2022-10-16 02:30:18,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:18,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 02:30:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-10-16 02:30:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-10-16 02:30:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-10-16 02:30:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:18,562 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-10-16 02:30:18,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:18,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940730700] [2022-10-16 02:30:18,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940730700] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:18,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:18,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:30:18,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257356367] [2022-10-16 02:30:18,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:18,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:30:18,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:18,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:30:18,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:18,566 INFO L87 Difference]: Start difference. First operand 919 states and 1180 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 5 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-10-16 02:30:19,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:19,058 INFO L93 Difference]: Finished difference Result 1923 states and 2703 transitions. [2022-10-16 02:30:19,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:30:19,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 5 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 297 [2022-10-16 02:30:19,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:19,070 INFO L225 Difference]: With dead ends: 1923 [2022-10-16 02:30:19,071 INFO L226 Difference]: Without dead ends: 1923 [2022-10-16 02:30:19,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:30:19,072 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 705 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:19,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 1634 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:30:19,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2022-10-16 02:30:19,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 974. [2022-10-16 02:30:19,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 809 states have (on average 1.2954264524103831) internal successors, (1048), 817 states have internal predecessors, (1048), 110 states have call successors, (110), 54 states have call predecessors, (110), 54 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) [2022-10-16 02:30:19,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1268 transitions. [2022-10-16 02:30:19,120 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1268 transitions. Word has length 297 [2022-10-16 02:30:19,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:19,121 INFO L495 AbstractCegarLoop]: Abstraction has 974 states and 1268 transitions. [2022-10-16 02:30:19,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 5 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-10-16 02:30:19,122 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1268 transitions. [2022-10-16 02:30:19,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-10-16 02:30:19,125 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:19,125 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:30:19,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-10-16 02:30:19,126 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:19,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:19,127 INFO L85 PathProgramCache]: Analyzing trace with hash 526332056, now seen corresponding path program 1 times [2022-10-16 02:30:19,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:19,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068100610] [2022-10-16 02:30:19,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:19,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 02:30:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-10-16 02:30:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-10-16 02:30:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-10-16 02:30:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,784 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-10-16 02:30:19,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:19,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068100610] [2022-10-16 02:30:19,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068100610] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:19,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067318389] [2022-10-16 02:30:19,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:19,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:19,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:19,787 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:19,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 02:30:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:19,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 02:30:19,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:20,150 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-10-16 02:30:20,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:20,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067318389] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:20,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:20,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 17 [2022-10-16 02:30:20,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880666564] [2022-10-16 02:30:20,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:20,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:30:20,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:20,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:30:20,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:30:20,152 INFO L87 Difference]: Start difference. First operand 974 states and 1268 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-10-16 02:30:21,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:21,187 INFO L93 Difference]: Finished difference Result 1852 states and 2498 transitions. [2022-10-16 02:30:21,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 02:30:21,187 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 297 [2022-10-16 02:30:21,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:21,198 INFO L225 Difference]: With dead ends: 1852 [2022-10-16 02:30:21,199 INFO L226 Difference]: Without dead ends: 1852 [2022-10-16 02:30:21,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=957, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 02:30:21,200 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 1383 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:21,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 3190 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 02:30:21,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-10-16 02:30:21,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 964. [2022-10-16 02:30:21,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 802 states have (on average 1.286783042394015) internal successors, (1032), 810 states have internal predecessors, (1032), 107 states have call successors, (107), 54 states have call predecessors, (107), 54 states have return successors, (107), 103 states have call predecessors, (107), 107 states have call successors, (107) [2022-10-16 02:30:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1246 transitions. [2022-10-16 02:30:21,259 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1246 transitions. Word has length 297 [2022-10-16 02:30:21,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:21,259 INFO L495 AbstractCegarLoop]: Abstraction has 964 states and 1246 transitions. [2022-10-16 02:30:21,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-10-16 02:30:21,259 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1246 transitions. [2022-10-16 02:30:21,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-10-16 02:30:21,261 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:21,261 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:30:21,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:21,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-10-16 02:30:21,462 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:21,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:21,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1413386904, now seen corresponding path program 1 times [2022-10-16 02:30:21,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:21,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840922756] [2022-10-16 02:30:21,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:21,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:21,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:22,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:22,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:22,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:22,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:22,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:22,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 02:30:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:22,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-10-16 02:30:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-10-16 02:30:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:22,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-10-16 02:30:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:22,065 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-10-16 02:30:22,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:22,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840922756] [2022-10-16 02:30:22,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840922756] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:22,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352324158] [2022-10-16 02:30:22,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:22,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:22,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:22,068 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:22,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 02:30:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:22,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 02:30:22,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-10-16 02:30:22,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:30:22,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352324158] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:22,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:30:22,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2022-10-16 02:30:22,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125072495] [2022-10-16 02:30:22,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:22,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:30:22,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:22,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:30:22,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2022-10-16 02:30:22,459 INFO L87 Difference]: Start difference. First operand 964 states and 1246 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-16 02:30:23,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:23,479 INFO L93 Difference]: Finished difference Result 2562 states and 3468 transitions. [2022-10-16 02:30:23,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 02:30:23,479 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 297 [2022-10-16 02:30:23,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:23,494 INFO L225 Difference]: With dead ends: 2562 [2022-10-16 02:30:23,494 INFO L226 Difference]: Without dead ends: 2562 [2022-10-16 02:30:23,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=1153, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 02:30:23,496 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 1316 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 3990 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:23,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 3990 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 02:30:23,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2022-10-16 02:30:23,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1345. [2022-10-16 02:30:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1107 states have (on average 1.2836495031616983) internal successors, (1421), 1119 states have internal predecessors, (1421), 163 states have call successors, (163), 74 states have call predecessors, (163), 74 states have return successors, (163), 155 states have call predecessors, (163), 163 states have call successors, (163) [2022-10-16 02:30:23,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1747 transitions. [2022-10-16 02:30:23,557 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1747 transitions. Word has length 297 [2022-10-16 02:30:23,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:23,558 INFO L495 AbstractCegarLoop]: Abstraction has 1345 states and 1747 transitions. [2022-10-16 02:30:23,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-16 02:30:23,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1747 transitions. [2022-10-16 02:30:23,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-10-16 02:30:23,561 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:23,561 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:23,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 02:30:23,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-10-16 02:30:23,775 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:23,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:23,775 INFO L85 PathProgramCache]: Analyzing trace with hash -874978354, now seen corresponding path program 1 times [2022-10-16 02:30:23,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:23,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391711484] [2022-10-16 02:30:23,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:23,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:23,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-10-16 02:30:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-10-16 02:30:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-10-16 02:30:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-10-16 02:30:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-10-16 02:30:24,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:24,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391711484] [2022-10-16 02:30:24,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391711484] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:30:24,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:30:24,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:30:24,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226654287] [2022-10-16 02:30:24,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:30:24,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:30:24,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:24,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:30:24,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:30:24,046 INFO L87 Difference]: Start difference. First operand 1345 states and 1747 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 02:30:24,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:30:24,626 INFO L93 Difference]: Finished difference Result 1424 states and 1820 transitions. [2022-10-16 02:30:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 02:30:24,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 311 [2022-10-16 02:30:24,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:30:24,635 INFO L225 Difference]: With dead ends: 1424 [2022-10-16 02:30:24,635 INFO L226 Difference]: Without dead ends: 1424 [2022-10-16 02:30:24,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:30:24,636 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 500 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:30:24,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 954 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 02:30:24,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2022-10-16 02:30:24,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1151. [2022-10-16 02:30:24,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 956 states have (on average 1.2646443514644352) internal successors, (1209), 962 states have internal predecessors, (1209), 134 states have call successors, (134), 60 states have call predecessors, (134), 60 states have return successors, (134), 128 states have call predecessors, (134), 134 states have call successors, (134) [2022-10-16 02:30:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1477 transitions. [2022-10-16 02:30:24,672 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1477 transitions. Word has length 311 [2022-10-16 02:30:24,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:30:24,673 INFO L495 AbstractCegarLoop]: Abstraction has 1151 states and 1477 transitions. [2022-10-16 02:30:24,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 02:30:24,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1477 transitions. [2022-10-16 02:30:24,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-10-16 02:30:24,677 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:30:24,677 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:30:24,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-10-16 02:30:24,678 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:30:24,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:30:24,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1637848333, now seen corresponding path program 1 times [2022-10-16 02:30:24,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:30:24,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298240422] [2022-10-16 02:30:24,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:24,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:30:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:30:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:30:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:30:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:30:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:30:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:30:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:30:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:30:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:30:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:30:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:30:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:30:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:30:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:30:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:30:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:30:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:30:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:30:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:30:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:30:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:30:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-10-16 02:30:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-10-16 02:30:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-10-16 02:30:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-10-16 02:30:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-10-16 02:30:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-10-16 02:30:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-10-16 02:30:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-10-16 02:30:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,596 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-10-16 02:30:25,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:30:25,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298240422] [2022-10-16 02:30:25,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298240422] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:30:25,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266293987] [2022-10-16 02:30:25,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:30:25,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:30:25,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:30:25,601 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:30:25,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 02:30:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:30:25,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 36 conjunts are in the unsatisfiable core [2022-10-16 02:30:25,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:30:26,354 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 224 proven. 80 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-10-16 02:30:26,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:30:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 34 proven. 76 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-10-16 02:30:27,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266293987] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:30:27,013 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:30:27,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 33 [2022-10-16 02:30:27,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38781283] [2022-10-16 02:30:27,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:30:27,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 02:30:27,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:30:27,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 02:30:27,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 02:30:27,017 INFO L87 Difference]: Start difference. First operand 1151 states and 1477 transitions. Second operand has 33 states, 33 states have (on average 8.121212121212121) internal successors, (268), 28 states have internal predecessors, (268), 8 states have call successors, (53), 9 states have call predecessors, (53), 14 states have return successors, (53), 12 states have call predecessors, (53), 8 states have call successors, (53) [2022-10-16 02:31:31,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:31,668 INFO L93 Difference]: Finished difference Result 19531 states and 27252 transitions. [2022-10-16 02:31:31,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 740 states. [2022-10-16 02:31:31,669 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 8.121212121212121) internal successors, (268), 28 states have internal predecessors, (268), 8 states have call successors, (53), 9 states have call predecessors, (53), 14 states have return successors, (53), 12 states have call predecessors, (53), 8 states have call successors, (53) Word has length 350 [2022-10-16 02:31:31,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:31,774 INFO L225 Difference]: With dead ends: 19531 [2022-10-16 02:31:31,774 INFO L226 Difference]: Without dead ends: 19531 [2022-10-16 02:31:31,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1527 GetRequests, 758 SyntacticMatches, 1 SemanticMatches, 768 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269902 ImplicationChecksByTransitivity, 33.8s TimeCoverageRelationStatistics Valid=35409, Invalid=556721, Unknown=0, NotChecked=0, Total=592130 [2022-10-16 02:31:31,841 INFO L413 NwaCegarLoop]: 1021 mSDtfsCounter, 15222 mSDsluCounter, 18714 mSDsCounter, 0 mSdLazyCounter, 33856 mSolverCounterSat, 11978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15222 SdHoareTripleChecker+Valid, 19735 SdHoareTripleChecker+Invalid, 45834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 11978 IncrementalHoareTripleChecker+Valid, 33856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:31,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15222 Valid, 19735 Invalid, 45834 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [11978 Valid, 33856 Invalid, 0 Unknown, 0 Unchecked, 27.8s Time] [2022-10-16 02:31:31,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19531 states. [2022-10-16 02:31:32,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19531 to 4397. [2022-10-16 02:31:32,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 3509 states have (on average 1.2673126246793958) internal successors, (4447), 3557 states have internal predecessors, (4447), 618 states have call successors, (618), 248 states have call predecessors, (618), 269 states have return successors, (648), 591 states have call predecessors, (648), 618 states have call successors, (648) [2022-10-16 02:31:32,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 5713 transitions. [2022-10-16 02:31:32,222 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 5713 transitions. Word has length 350 [2022-10-16 02:31:32,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:32,222 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 5713 transitions. [2022-10-16 02:31:32,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 8.121212121212121) internal successors, (268), 28 states have internal predecessors, (268), 8 states have call successors, (53), 9 states have call predecessors, (53), 14 states have return successors, (53), 12 states have call predecessors, (53), 8 states have call successors, (53) [2022-10-16 02:31:32,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 5713 transitions. [2022-10-16 02:31:32,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-10-16 02:31:32,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:32,237 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:32,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:32,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:32,451 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:32,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:32,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1190160750, now seen corresponding path program 1 times [2022-10-16 02:31:32,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:32,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717734500] [2022-10-16 02:31:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:32,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:31:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:31:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:31:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:31:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:31:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:31:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:31:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:31:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:31:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:31:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:31:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:31:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:31:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:31:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-10-16 02:31:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:31:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:31:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:31:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:31:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-10-16 02:31:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-10-16 02:31:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-10-16 02:31:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-10-16 02:31:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-10-16 02:31:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-10-16 02:31:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-10-16 02:31:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-10-16 02:31:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:32,813 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-10-16 02:31:32,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:32,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717734500] [2022-10-16 02:31:32,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717734500] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:32,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:31:32,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:31:32,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419090159] [2022-10-16 02:31:32,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:32,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:31:32,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:32,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:31:32,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:31:32,816 INFO L87 Difference]: Start difference. First operand 4397 states and 5713 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 4 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-10-16 02:31:33,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:33,187 INFO L93 Difference]: Finished difference Result 4397 states and 5709 transitions. [2022-10-16 02:31:33,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:31:33,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 4 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 350 [2022-10-16 02:31:33,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:33,209 INFO L225 Difference]: With dead ends: 4397 [2022-10-16 02:31:33,209 INFO L226 Difference]: Without dead ends: 4397 [2022-10-16 02:31:33,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:31:33,212 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 377 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:33,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 467 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:31:33,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4397 states. [2022-10-16 02:31:33,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4397 to 4397. [2022-10-16 02:31:33,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 3509 states have (on average 1.2661726987745796) internal successors, (4443), 3557 states have internal predecessors, (4443), 618 states have call successors, (618), 248 states have call predecessors, (618), 269 states have return successors, (648), 591 states have call predecessors, (648), 618 states have call successors, (648) [2022-10-16 02:31:33,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 5709 transitions. [2022-10-16 02:31:33,342 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 5709 transitions. Word has length 350 [2022-10-16 02:31:33,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:33,342 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 5709 transitions. [2022-10-16 02:31:33,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 4 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-10-16 02:31:33,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 5709 transitions. [2022-10-16 02:31:33,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-10-16 02:31:33,355 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:33,355 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:33,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-10-16 02:31:33,356 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:33,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:33,356 INFO L85 PathProgramCache]: Analyzing trace with hash 54355973, now seen corresponding path program 1 times [2022-10-16 02:31:33,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:33,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540434542] [2022-10-16 02:31:33,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:33,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:31:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:31:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:31:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:31:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:31:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:31:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:31:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:31:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:31:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:31:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:31:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:31:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:31:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:31:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:31:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:31:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:31:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:31:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:31:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-10-16 02:31:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-10-16 02:31:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-10-16 02:31:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-10-16 02:31:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-10-16 02:31:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-10-16 02:31:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-10-16 02:31:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-10-16 02:31:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:33,825 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2022-10-16 02:31:33,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:33,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540434542] [2022-10-16 02:31:33,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540434542] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:33,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:31:33,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:31:33,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121285586] [2022-10-16 02:31:33,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:33,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:31:33,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:33,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:31:33,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:31:33,828 INFO L87 Difference]: Start difference. First operand 4397 states and 5709 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-16 02:31:34,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:34,159 INFO L93 Difference]: Finished difference Result 8310 states and 10803 transitions. [2022-10-16 02:31:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:31:34,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 350 [2022-10-16 02:31:34,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:34,183 INFO L225 Difference]: With dead ends: 8310 [2022-10-16 02:31:34,184 INFO L226 Difference]: Without dead ends: 8310 [2022-10-16 02:31:34,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:31:34,184 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 215 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:34,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 642 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:31:34,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2022-10-16 02:31:34,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 4629. [2022-10-16 02:31:34,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 3741 states have (on average 1.2619620422346967) internal successors, (4721), 3789 states have internal predecessors, (4721), 618 states have call successors, (618), 248 states have call predecessors, (618), 269 states have return successors, (648), 591 states have call predecessors, (648), 618 states have call successors, (648) [2022-10-16 02:31:34,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 5987 transitions. [2022-10-16 02:31:34,371 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 5987 transitions. Word has length 350 [2022-10-16 02:31:34,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:34,372 INFO L495 AbstractCegarLoop]: Abstraction has 4629 states and 5987 transitions. [2022-10-16 02:31:34,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-16 02:31:34,372 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 5987 transitions. [2022-10-16 02:31:34,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-10-16 02:31:34,385 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:34,385 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:34,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-10-16 02:31:34,386 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:34,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:34,386 INFO L85 PathProgramCache]: Analyzing trace with hash -278287165, now seen corresponding path program 1 times [2022-10-16 02:31:34,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:34,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9125210] [2022-10-16 02:31:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:34,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:31:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:31:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:31:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:31:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:31:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:31:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:31:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:31:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:31:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:31:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:31:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:31:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:31:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:31:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:31:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-10-16 02:31:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-10-16 02:31:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-10-16 02:31:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-10-16 02:31:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-10-16 02:31:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-10-16 02:31:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-10-16 02:31:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-10-16 02:31:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-10-16 02:31:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-10-16 02:31:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-10-16 02:31:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-10-16 02:31:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:34,759 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 853 trivial. 0 not checked. [2022-10-16 02:31:34,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:34,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9125210] [2022-10-16 02:31:34,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9125210] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:34,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:31:34,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:31:34,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943981940] [2022-10-16 02:31:34,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:34,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:31:34,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:34,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:31:34,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:31:34,762 INFO L87 Difference]: Start difference. First operand 4629 states and 5987 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-16 02:31:34,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:34,961 INFO L93 Difference]: Finished difference Result 4643 states and 5987 transitions. [2022-10-16 02:31:34,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:31:34,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 350 [2022-10-16 02:31:34,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:34,974 INFO L225 Difference]: With dead ends: 4643 [2022-10-16 02:31:34,974 INFO L226 Difference]: Without dead ends: 4498 [2022-10-16 02:31:34,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:31:34,975 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 54 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:34,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 545 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:31:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2022-10-16 02:31:35,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 4498. [2022-10-16 02:31:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4498 states, 3610 states have (on average 1.2581717451523546) internal successors, (4542), 3658 states have internal predecessors, (4542), 618 states have call successors, (618), 248 states have call predecessors, (618), 269 states have return successors, (648), 591 states have call predecessors, (648), 618 states have call successors, (648) [2022-10-16 02:31:35,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 5808 transitions. [2022-10-16 02:31:35,094 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 5808 transitions. Word has length 350 [2022-10-16 02:31:35,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:35,094 INFO L495 AbstractCegarLoop]: Abstraction has 4498 states and 5808 transitions. [2022-10-16 02:31:35,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-16 02:31:35,095 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 5808 transitions. [2022-10-16 02:31:35,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-10-16 02:31:35,107 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:35,108 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:35,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-10-16 02:31:35,108 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:35,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:35,109 INFO L85 PathProgramCache]: Analyzing trace with hash 598003328, now seen corresponding path program 1 times [2022-10-16 02:31:35,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:35,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759023478] [2022-10-16 02:31:35,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:35,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:31:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:31:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:31:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:31:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:31:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:31:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:31:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:31:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:31:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:31:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:31:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:31:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:31:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:31:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-10-16 02:31:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-10-16 02:31:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-10-16 02:31:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-10-16 02:31:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 02:31:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-10-16 02:31:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-10-16 02:31:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-10-16 02:31:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-10-16 02:31:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-10-16 02:31:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-10-16 02:31:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-10-16 02:31:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-10-16 02:31:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 44 proven. 5 refuted. 0 times theorem prover too weak. 831 trivial. 0 not checked. [2022-10-16 02:31:35,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:35,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759023478] [2022-10-16 02:31:35,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759023478] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:35,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650965384] [2022-10-16 02:31:35,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:35,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:35,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:35,358 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:35,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 02:31:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:35,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 02:31:35,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:35,634 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2022-10-16 02:31:35,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:31:35,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650965384] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:31:35,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:31:35,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-10-16 02:31:35,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510605683] [2022-10-16 02:31:35,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:31:35,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:31:35,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:35,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:31:35,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:31:35,636 INFO L87 Difference]: Start difference. First operand 4498 states and 5808 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-16 02:31:35,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:31:35,702 INFO L93 Difference]: Finished difference Result 4666 states and 5835 transitions. [2022-10-16 02:31:35,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:31:35,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 351 [2022-10-16 02:31:35,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:31:35,715 INFO L225 Difference]: With dead ends: 4666 [2022-10-16 02:31:35,715 INFO L226 Difference]: Without dead ends: 4432 [2022-10-16 02:31:35,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:31:35,720 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 40 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:31:35,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 666 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:31:35,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2022-10-16 02:31:35,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 4432. [2022-10-16 02:31:35,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4432 states, 3565 states have (on average 1.2244039270687237) internal successors, (4365), 3604 states have internal predecessors, (4365), 618 states have call successors, (618), 248 states have call predecessors, (618), 248 states have return successors, (618), 579 states have call predecessors, (618), 618 states have call successors, (618) [2022-10-16 02:31:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 5601 transitions. [2022-10-16 02:31:35,837 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 5601 transitions. Word has length 351 [2022-10-16 02:31:35,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:31:35,837 INFO L495 AbstractCegarLoop]: Abstraction has 4432 states and 5601 transitions. [2022-10-16 02:31:35,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-16 02:31:35,838 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 5601 transitions. [2022-10-16 02:31:35,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-10-16 02:31:35,849 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:31:35,849 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:31:35,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 02:31:36,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:36,065 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:31:36,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:31:36,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2064509340, now seen corresponding path program 1 times [2022-10-16 02:31:36,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:31:36,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030127165] [2022-10-16 02:31:36,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:36,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:31:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:31:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:31:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:31:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:31:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:31:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:31:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:31:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:31:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:31:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:31:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:31:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:31:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:31:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:31:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:31:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:31:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-16 02:31:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-10-16 02:31:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-10-16 02:31:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-10-16 02:31:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 02:31:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-10-16 02:31:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-10-16 02:31:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-10-16 02:31:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-10-16 02:31:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-10-16 02:31:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-10-16 02:31:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-10-16 02:31:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-10-16 02:31:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,301 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-10-16 02:31:37,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:31:37,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030127165] [2022-10-16 02:31:37,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030127165] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:31:37,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826872524] [2022-10-16 02:31:37,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:31:37,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:31:37,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:31:37,304 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:31:37,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 02:31:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:31:37,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 36 conjunts are in the unsatisfiable core [2022-10-16 02:31:37,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:31:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 190 proven. 104 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2022-10-16 02:31:38,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:31:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 33 proven. 71 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-10-16 02:31:38,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826872524] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:31:38,750 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:31:38,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 35 [2022-10-16 02:31:38,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996418273] [2022-10-16 02:31:38,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:31:38,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-16 02:31:38,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:31:38,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-16 02:31:38,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1099, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 02:31:38,753 INFO L87 Difference]: Start difference. First operand 4432 states and 5601 transitions. Second operand has 35 states, 35 states have (on average 7.685714285714286) internal successors, (269), 30 states have internal predecessors, (269), 9 states have call successors, (54), 9 states have call predecessors, (54), 14 states have return successors, (54), 13 states have call predecessors, (54), 9 states have call successors, (54) [2022-10-16 02:32:43,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:32:43,709 INFO L93 Difference]: Finished difference Result 22757 states and 30015 transitions. [2022-10-16 02:32:43,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 598 states. [2022-10-16 02:32:43,710 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 7.685714285714286) internal successors, (269), 30 states have internal predecessors, (269), 9 states have call successors, (54), 9 states have call predecessors, (54), 14 states have return successors, (54), 13 states have call predecessors, (54), 9 states have call successors, (54) Word has length 351 [2022-10-16 02:32:43,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:32:43,773 INFO L225 Difference]: With dead ends: 22757 [2022-10-16 02:32:43,773 INFO L226 Difference]: Without dead ends: 22757 [2022-10-16 02:32:43,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1387 GetRequests, 758 SyntacticMatches, 1 SemanticMatches, 628 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173058 ImplicationChecksByTransitivity, 40.5s TimeCoverageRelationStatistics Valid=22334, Invalid=373936, Unknown=0, NotChecked=0, Total=396270 [2022-10-16 02:32:43,820 INFO L413 NwaCegarLoop]: 1433 mSDtfsCounter, 6440 mSDsluCounter, 24778 mSDsCounter, 0 mSdLazyCounter, 33468 mSolverCounterSat, 5726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6440 SdHoareTripleChecker+Valid, 26211 SdHoareTripleChecker+Invalid, 39194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5726 IncrementalHoareTripleChecker+Valid, 33468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2022-10-16 02:32:43,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6440 Valid, 26211 Invalid, 39194 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5726 Valid, 33468 Invalid, 0 Unknown, 0 Unchecked, 22.7s Time] [2022-10-16 02:32:43,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22757 states. [2022-10-16 02:32:44,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22757 to 5777. [2022-10-16 02:32:44,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5777 states, 4736 states have (on average 1.216427364864865) internal successors, (5761), 4781 states have internal predecessors, (5761), 716 states have call successors, (716), 324 states have call predecessors, (716), 324 states have return successors, (716), 671 states have call predecessors, (716), 716 states have call successors, (716) [2022-10-16 02:32:44,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5777 states to 5777 states and 7193 transitions. [2022-10-16 02:32:44,133 INFO L78 Accepts]: Start accepts. Automaton has 5777 states and 7193 transitions. Word has length 351 [2022-10-16 02:32:44,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:32:44,134 INFO L495 AbstractCegarLoop]: Abstraction has 5777 states and 7193 transitions. [2022-10-16 02:32:44,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 7.685714285714286) internal successors, (269), 30 states have internal predecessors, (269), 9 states have call successors, (54), 9 states have call predecessors, (54), 14 states have return successors, (54), 13 states have call predecessors, (54), 9 states have call successors, (54) [2022-10-16 02:32:44,134 INFO L276 IsEmpty]: Start isEmpty. Operand 5777 states and 7193 transitions. [2022-10-16 02:32:44,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-10-16 02:32:44,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:32:44,152 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:32:44,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 02:32:44,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:44,367 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [assertErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:32:44,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:32:44,367 INFO L85 PathProgramCache]: Analyzing trace with hash 820311334, now seen corresponding path program 1 times [2022-10-16 02:32:44,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:32:44,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215103651] [2022-10-16 02:32:44,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:44,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:32:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 02:32:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 02:32:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 02:32:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 02:32:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 02:32:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:32:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 02:32:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 02:32:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 02:32:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 02:32:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 02:32:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 02:32:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 02:32:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 02:32:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 02:32:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 02:32:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-10-16 02:32:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-10-16 02:32:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-10-16 02:32:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-10-16 02:32:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 02:32:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-10-16 02:32:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-10-16 02:32:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-10-16 02:32:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-10-16 02:32:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-10-16 02:32:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-10-16 02:32:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-10-16 02:32:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-10-16 02:32:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-10-16 02:32:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2022-10-16 02:32:45,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:32:45,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215103651] [2022-10-16 02:32:45,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215103651] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:32:45,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060481812] [2022-10-16 02:32:45,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:32:45,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:32:45,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:32:45,214 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:32:45,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 02:32:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:32:45,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-16 02:32:45,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:32:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 327 proven. 118 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2022-10-16 02:32:46,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:32:47,020 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 50 proven. 204 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-10-16 02:32:47,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060481812] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:32:47,020 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:32:47,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 19] total 41 [2022-10-16 02:32:47,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943317918] [2022-10-16 02:32:47,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:32:47,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-10-16 02:32:47,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:32:47,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-10-16 02:32:47,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1527, Unknown=0, NotChecked=0, Total=1640 [2022-10-16 02:32:47,025 INFO L87 Difference]: Start difference. First operand 5777 states and 7193 transitions. Second operand has 41 states, 40 states have (on average 7.9) internal successors, (316), 35 states have internal predecessors, (316), 11 states have call successors, (65), 10 states have call predecessors, (65), 12 states have return successors, (66), 14 states have call predecessors, (66), 10 states have call successors, (66)