/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/systemc/token_ring.01.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 04:21:26,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 04:21:26,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 04:21:26,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 04:21:26,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 04:21:26,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 04:21:26,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 04:21:26,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 04:21:26,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 04:21:26,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 04:21:26,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 04:21:26,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 04:21:26,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 04:21:26,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 04:21:26,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 04:21:26,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 04:21:26,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 04:21:26,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 04:21:26,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 04:21:26,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 04:21:26,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 04:21:26,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 04:21:26,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 04:21:26,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 04:21:26,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 04:21:26,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 04:21:26,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 04:21:26,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 04:21:26,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 04:21:26,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 04:21:26,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 04:21:26,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 04:21:26,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 04:21:26,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 04:21:26,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 04:21:26,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 04:21:26,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 04:21:26,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 04:21:26,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 04:21:26,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 04:21:26,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 04:21:26,757 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 04:21:26,791 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 04:21:26,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 04:21:26,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 04:21:26,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 04:21:26,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 04:21:26,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 04:21:26,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 04:21:26,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 04:21:26,794 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 04:21:26,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 04:21:26,795 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 04:21:26,795 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 04:21:26,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 04:21:26,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 04:21:26,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 04:21:26,796 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 04:21:26,796 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 04:21:26,796 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 04:21:26,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 04:21:26,797 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 04:21:26,797 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 04:21:26,797 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 04:21:26,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 04:21:26,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 04:21:26,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 04:21:26,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:21:26,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 04:21:26,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 04:21:26,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 04:21:26,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 04:21:26,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 04:21:27,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 04:21:27,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 04:21:27,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 04:21:27,279 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 04:21:27,279 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 04:21:27,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.01.cil-1.c [2022-10-16 04:21:27,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e60bdb388/7160e19c5afa489886b7b349e81caca5/FLAGd874743e3 [2022-10-16 04:21:28,037 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 04:21:28,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.01.cil-1.c [2022-10-16 04:21:28,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e60bdb388/7160e19c5afa489886b7b349e81caca5/FLAGd874743e3 [2022-10-16 04:21:28,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e60bdb388/7160e19c5afa489886b7b349e81caca5 [2022-10-16 04:21:28,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 04:21:28,384 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 04:21:28,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 04:21:28,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 04:21:28,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 04:21:28,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c6ca3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28, skipping insertion in model container [2022-10-16 04:21:28,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 04:21:28,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 04:21:28,602 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/systemc/token_ring.01.cil-1.c[671,684] [2022-10-16 04:21:28,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:21:28,694 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 04:21:28,711 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/systemc/token_ring.01.cil-1.c[671,684] [2022-10-16 04:21:28,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:21:28,805 INFO L208 MainTranslator]: Completed translation [2022-10-16 04:21:28,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28 WrapperNode [2022-10-16 04:21:28,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 04:21:28,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 04:21:28,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 04:21:28,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 04:21:28,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,907 INFO L138 Inliner]: procedures = 30, calls = 34, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 215 [2022-10-16 04:21:28,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 04:21:28,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 04:21:28,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 04:21:28,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 04:21:28,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,981 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:28,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 04:21:28,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 04:21:28,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 04:21:28,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 04:21:28,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (1/1) ... [2022-10-16 04:21:29,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:21:29,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:29,045 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 04:21:29,067 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 04:21:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 04:21:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-16 04:21:29,131 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-16 04:21:29,131 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-16 04:21:29,132 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-16 04:21:29,132 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-16 04:21:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-16 04:21:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-16 04:21:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-16 04:21:29,133 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-16 04:21:29,133 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-16 04:21:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 04:21:29,134 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-16 04:21:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-16 04:21:29,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 04:21:29,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 04:21:29,302 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 04:21:29,305 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 04:21:29,884 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 04:21:29,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 04:21:29,901 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 04:21:29,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:21:29 BoogieIcfgContainer [2022-10-16 04:21:29,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 04:21:29,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 04:21:29,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 04:21:29,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 04:21:29,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:21:28" (1/3) ... [2022-10-16 04:21:29,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c2f473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:21:29, skipping insertion in model container [2022-10-16 04:21:29,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:21:28" (2/3) ... [2022-10-16 04:21:29,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c2f473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:21:29, skipping insertion in model container [2022-10-16 04:21:29,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:21:29" (3/3) ... [2022-10-16 04:21:29,921 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.01.cil-1.c [2022-10-16 04:21:29,947 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 04:21:29,948 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 04:21:30,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 04:21:30,065 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;@4e6e4fa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 04:21:30,065 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 04:21:30,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 84 states have (on average 1.5357142857142858) internal successors, (129), 87 states have internal predecessors, (129), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 04:21:30,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 04:21:30,108 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:30,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:30,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:30,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:30,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1767960346, now seen corresponding path program 1 times [2022-10-16 04:21:30,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:30,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37104001] [2022-10-16 04:21:30,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:30,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:30,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:30,778 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 04:21:30,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:30,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37104001] [2022-10-16 04:21:30,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37104001] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:30,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:30,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:21:30,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344979464] [2022-10-16 04:21:30,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:30,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:21:30,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:30,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:21:30,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:21:30,825 INFO L87 Difference]: Start difference. First operand has 108 states, 84 states have (on average 1.5357142857142858) internal successors, (129), 87 states have internal predecessors, (129), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 04:21:31,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:31,557 INFO L93 Difference]: Finished difference Result 243 states and 344 transitions. [2022-10-16 04:21:31,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 04:21:31,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2022-10-16 04:21:31,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:31,577 INFO L225 Difference]: With dead ends: 243 [2022-10-16 04:21:31,578 INFO L226 Difference]: Without dead ends: 239 [2022-10-16 04:21:31,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:21:31,585 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 294 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:31,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 457 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 04:21:31,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-10-16 04:21:31,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 195. [2022-10-16 04:21:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 155 states have (on average 1.4387096774193548) internal successors, (223), 158 states have internal predecessors, (223), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (28), 25 states have call predecessors, (28), 25 states have call successors, (28) [2022-10-16 04:21:31,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 276 transitions. [2022-10-16 04:21:31,670 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 276 transitions. Word has length 42 [2022-10-16 04:21:31,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:31,671 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 276 transitions. [2022-10-16 04:21:31,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 04:21:31,671 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 276 transitions. [2022-10-16 04:21:31,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 04:21:31,674 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:31,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:31,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 04:21:31,676 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:31,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:31,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1883115333, now seen corresponding path program 1 times [2022-10-16 04:21:31,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:31,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218071349] [2022-10-16 04:21:31,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:31,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:31,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,047 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 04:21:32,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:32,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218071349] [2022-10-16 04:21:32,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218071349] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:32,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:32,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:21:32,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870432717] [2022-10-16 04:21:32,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:32,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:21:32,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:32,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:21:32,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:21:32,054 INFO L87 Difference]: Start difference. First operand 195 states and 276 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:21:32,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:32,795 INFO L93 Difference]: Finished difference Result 347 states and 491 transitions. [2022-10-16 04:21:32,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:21:32,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2022-10-16 04:21:32,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:32,802 INFO L225 Difference]: With dead ends: 347 [2022-10-16 04:21:32,802 INFO L226 Difference]: Without dead ends: 347 [2022-10-16 04:21:32,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:21:32,805 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 277 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:32,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 718 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 04:21:32,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-10-16 04:21:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 280. [2022-10-16 04:21:32,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 223 states have (on average 1.4304932735426008) internal successors, (319), 227 states have internal predecessors, (319), 35 states have call successors, (35), 18 states have call predecessors, (35), 20 states have return successors, (40), 36 states have call predecessors, (40), 35 states have call successors, (40) [2022-10-16 04:21:32,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 394 transitions. [2022-10-16 04:21:32,843 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 394 transitions. Word has length 56 [2022-10-16 04:21:32,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:32,844 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 394 transitions. [2022-10-16 04:21:32,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:21:32,844 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 394 transitions. [2022-10-16 04:21:32,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 04:21:32,847 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:32,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:32,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 04:21:32,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:32,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:32,849 INFO L85 PathProgramCache]: Analyzing trace with hash 362464121, now seen corresponding path program 1 times [2022-10-16 04:21:32,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:32,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468616286] [2022-10-16 04:21:32,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:32,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:32,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:33,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:21:33,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:33,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468616286] [2022-10-16 04:21:33,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468616286] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:33,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:33,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:21:33,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117850712] [2022-10-16 04:21:33,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:33,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:21:33,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:33,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:21:33,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:21:33,009 INFO L87 Difference]: Start difference. First operand 280 states and 394 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:21:33,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:33,714 INFO L93 Difference]: Finished difference Result 598 states and 840 transitions. [2022-10-16 04:21:33,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:21:33,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2022-10-16 04:21:33,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:33,728 INFO L225 Difference]: With dead ends: 598 [2022-10-16 04:21:33,729 INFO L226 Difference]: Without dead ends: 598 [2022-10-16 04:21:33,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:21:33,734 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 331 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:33,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 700 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 04:21:33,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-10-16 04:21:33,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 445. [2022-10-16 04:21:33,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 356 states have (on average 1.4269662921348314) internal successors, (508), 362 states have internal predecessors, (508), 53 states have call successors, (53), 30 states have call predecessors, (53), 34 states have return successors, (66), 56 states have call predecessors, (66), 53 states have call successors, (66) [2022-10-16 04:21:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 627 transitions. [2022-10-16 04:21:33,804 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 627 transitions. Word has length 56 [2022-10-16 04:21:33,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:33,804 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 627 transitions. [2022-10-16 04:21:33,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:21:33,805 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 627 transitions. [2022-10-16 04:21:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 04:21:33,808 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:33,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:33,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 04:21:33,809 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:33,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:33,810 INFO L85 PathProgramCache]: Analyzing trace with hash -534929157, now seen corresponding path program 1 times [2022-10-16 04:21:33,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:33,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657534513] [2022-10-16 04:21:33,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:33,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:33,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:33,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:33,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:33,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:33,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:33,993 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 04:21:33,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:33,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657534513] [2022-10-16 04:21:33,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657534513] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:33,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:33,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:21:33,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542186027] [2022-10-16 04:21:33,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:33,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:21:33,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:33,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:21:33,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:21:33,997 INFO L87 Difference]: Start difference. First operand 445 states and 627 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:21:34,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:34,339 INFO L93 Difference]: Finished difference Result 531 states and 748 transitions. [2022-10-16 04:21:34,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 04:21:34,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2022-10-16 04:21:34,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:34,345 INFO L225 Difference]: With dead ends: 531 [2022-10-16 04:21:34,346 INFO L226 Difference]: Without dead ends: 531 [2022-10-16 04:21:34,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:21:34,348 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 219 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:34,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 362 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 04:21:34,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-10-16 04:21:34,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 445. [2022-10-16 04:21:34,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 356 states have (on average 1.4129213483146068) internal successors, (503), 362 states have internal predecessors, (503), 53 states have call successors, (53), 30 states have call predecessors, (53), 34 states have return successors, (66), 56 states have call predecessors, (66), 53 states have call successors, (66) [2022-10-16 04:21:34,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 622 transitions. [2022-10-16 04:21:34,390 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 622 transitions. Word has length 56 [2022-10-16 04:21:34,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:34,390 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 622 transitions. [2022-10-16 04:21:34,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:21:34,391 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 622 transitions. [2022-10-16 04:21:34,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 04:21:34,394 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:34,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:34,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 04:21:34,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:34,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:34,395 INFO L85 PathProgramCache]: Analyzing trace with hash -286782663, now seen corresponding path program 1 times [2022-10-16 04:21:34,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:34,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812879230] [2022-10-16 04:21:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:34,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:34,540 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 04:21:34,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:34,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812879230] [2022-10-16 04:21:34,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812879230] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:34,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:34,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:21:34,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999834972] [2022-10-16 04:21:34,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:34,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:21:34,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:34,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:21:34,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:21:34,547 INFO L87 Difference]: Start difference. First operand 445 states and 622 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:21:35,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:35,080 INFO L93 Difference]: Finished difference Result 1009 states and 1385 transitions. [2022-10-16 04:21:35,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 04:21:35,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2022-10-16 04:21:35,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:35,088 INFO L225 Difference]: With dead ends: 1009 [2022-10-16 04:21:35,089 INFO L226 Difference]: Without dead ends: 1009 [2022-10-16 04:21:35,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-10-16 04:21:35,091 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 385 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:35,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 559 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 04:21:35,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2022-10-16 04:21:35,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 849. [2022-10-16 04:21:35,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 677 states have (on average 1.3870014771048744) internal successors, (939), 692 states have internal predecessors, (939), 102 states have call successors, (102), 60 states have call predecessors, (102), 68 states have return successors, (125), 100 states have call predecessors, (125), 102 states have call successors, (125) [2022-10-16 04:21:35,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1166 transitions. [2022-10-16 04:21:35,140 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1166 transitions. Word has length 56 [2022-10-16 04:21:35,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:35,141 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1166 transitions. [2022-10-16 04:21:35,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:21:35,142 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1166 transitions. [2022-10-16 04:21:35,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 04:21:35,147 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:35,148 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 04:21:35,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 04:21:35,148 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:35,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:35,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1718209167, now seen corresponding path program 1 times [2022-10-16 04:21:35,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:35,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020412765] [2022-10-16 04:21:35,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:35,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 04:21:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:21:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,422 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 04:21:35,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:35,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020412765] [2022-10-16 04:21:35,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020412765] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:35,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29248609] [2022-10-16 04:21:35,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:35,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:35,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:35,432 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 04:21:35,453 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 04:21:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:35,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:21:35,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:35,610 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 04:21:35,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:35,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29248609] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:35,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:35,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-10-16 04:21:35,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791217485] [2022-10-16 04:21:35,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:35,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:21:35,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:35,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:21:35,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:35,613 INFO L87 Difference]: Start difference. First operand 849 states and 1166 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:21:35,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:35,646 INFO L93 Difference]: Finished difference Result 1608 states and 2216 transitions. [2022-10-16 04:21:35,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:21:35,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2022-10-16 04:21:35,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:35,658 INFO L225 Difference]: With dead ends: 1608 [2022-10-16 04:21:35,658 INFO L226 Difference]: Without dead ends: 1608 [2022-10-16 04:21:35,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:35,660 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 116 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:35,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 402 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:35,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2022-10-16 04:21:35,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1605. [2022-10-16 04:21:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1282 states have (on average 1.3767550702028082) internal successors, (1765), 1306 states have internal predecessors, (1765), 189 states have call successors, (189), 116 states have call predecessors, (189), 132 states have return successors, (260), 190 states have call predecessors, (260), 189 states have call successors, (260) [2022-10-16 04:21:35,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2214 transitions. [2022-10-16 04:21:35,768 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2214 transitions. Word has length 91 [2022-10-16 04:21:35,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:35,772 INFO L495 AbstractCegarLoop]: Abstraction has 1605 states and 2214 transitions. [2022-10-16 04:21:35,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:21:35,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2214 transitions. [2022-10-16 04:21:35,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 04:21:35,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:35,784 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:35,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 04:21:35,999 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 04:21:36,000 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:36,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash -151537734, now seen corresponding path program 1 times [2022-10-16 04:21:36,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:36,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897111242] [2022-10-16 04:21:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 04:21:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 04:21:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 04:21:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:21:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 04:21:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 04:21:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,219 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 04:21:36,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:36,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897111242] [2022-10-16 04:21:36,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897111242] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:36,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535548375] [2022-10-16 04:21:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:36,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:36,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:36,222 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 04:21:36,247 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 04:21:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:21:36,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-16 04:21:36,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:36,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535548375] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:36,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:36,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:21:36,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232594558] [2022-10-16 04:21:36,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:36,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:21:36,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:36,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:21:36,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:36,446 INFO L87 Difference]: Start difference. First operand 1605 states and 2214 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 04:21:36,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:36,477 INFO L93 Difference]: Finished difference Result 1604 states and 2213 transitions. [2022-10-16 04:21:36,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:21:36,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2022-10-16 04:21:36,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:36,489 INFO L225 Difference]: With dead ends: 1604 [2022-10-16 04:21:36,489 INFO L226 Difference]: Without dead ends: 1602 [2022-10-16 04:21:36,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:36,491 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 45 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:36,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 194 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:36,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2022-10-16 04:21:36,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1602. [2022-10-16 04:21:36,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1602 states, 1280 states have (on average 1.36171875) internal successors, (1743), 1303 states have internal predecessors, (1743), 189 states have call successors, (189), 116 states have call predecessors, (189), 132 states have return successors, (260), 190 states have call predecessors, (260), 189 states have call successors, (260) [2022-10-16 04:21:36,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 2192 transitions. [2022-10-16 04:21:36,560 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 2192 transitions. Word has length 106 [2022-10-16 04:21:36,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:36,561 INFO L495 AbstractCegarLoop]: Abstraction has 1602 states and 2192 transitions. [2022-10-16 04:21:36,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 04:21:36,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 2192 transitions. [2022-10-16 04:21:36,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-16 04:21:36,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:36,568 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:36,607 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 04:21:36,784 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,SelfDestructingSolverStorable6 [2022-10-16 04:21:36,785 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:36,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:36,786 INFO L85 PathProgramCache]: Analyzing trace with hash -920293889, now seen corresponding path program 1 times [2022-10-16 04:21:36,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:36,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732126581] [2022-10-16 04:21:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:36,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 04:21:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 04:21:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-16 04:21:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:36,953 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-16 04:21:36,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:36,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732126581] [2022-10-16 04:21:36,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732126581] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:36,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413181669] [2022-10-16 04:21:36,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:36,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:36,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:36,956 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 04:21:36,962 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 04:21:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:21:37,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:37,159 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 04:21:37,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:37,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413181669] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:37,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:37,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:21:37,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451096124] [2022-10-16 04:21:37,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:37,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:21:37,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:37,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:21:37,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:37,163 INFO L87 Difference]: Start difference. First operand 1602 states and 2192 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 04:21:37,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:37,203 INFO L93 Difference]: Finished difference Result 3094 states and 4173 transitions. [2022-10-16 04:21:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:21:37,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2022-10-16 04:21:37,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:37,223 INFO L225 Difference]: With dead ends: 3094 [2022-10-16 04:21:37,224 INFO L226 Difference]: Without dead ends: 3094 [2022-10-16 04:21:37,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:37,225 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 68 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:37,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 277 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:37,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2022-10-16 04:21:37,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3052. [2022-10-16 04:21:37,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3052 states, 2440 states have (on average 1.353688524590164) internal successors, (3303), 2484 states have internal predecessors, (3303), 353 states have call successors, (353), 226 states have call predecessors, (353), 258 states have return successors, (476), 349 states have call predecessors, (476), 353 states have call successors, (476) [2022-10-16 04:21:37,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 4132 transitions. [2022-10-16 04:21:37,382 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 4132 transitions. Word has length 117 [2022-10-16 04:21:37,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:37,383 INFO L495 AbstractCegarLoop]: Abstraction has 3052 states and 4132 transitions. [2022-10-16 04:21:37,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 04:21:37,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 4132 transitions. [2022-10-16 04:21:37,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-16 04:21:37,394 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:37,394 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:37,438 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 04:21:37,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:37,610 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:37,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:37,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1176566473, now seen corresponding path program 1 times [2022-10-16 04:21:37,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:37,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080834746] [2022-10-16 04:21:37,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:37,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 04:21:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 04:21:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 04:21:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 04:21:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,795 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-10-16 04:21:37,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:37,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080834746] [2022-10-16 04:21:37,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080834746] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:37,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748422188] [2022-10-16 04:21:37,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:37,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:37,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:37,798 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 04:21:37,806 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 04:21:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:37,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 04:21:37,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:37,943 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 04:21:37,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:37,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748422188] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:37,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:37,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-10-16 04:21:37,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103352612] [2022-10-16 04:21:37,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:37,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:21:37,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:37,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:21:37,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:37,947 INFO L87 Difference]: Start difference. First operand 3052 states and 4132 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 04:21:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:37,990 INFO L93 Difference]: Finished difference Result 3388 states and 4494 transitions. [2022-10-16 04:21:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:21:37,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 133 [2022-10-16 04:21:37,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:38,012 INFO L225 Difference]: With dead ends: 3388 [2022-10-16 04:21:38,013 INFO L226 Difference]: Without dead ends: 3388 [2022-10-16 04:21:38,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:38,014 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 100 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:38,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 291 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:38,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2022-10-16 04:21:38,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 3350. [2022-10-16 04:21:38,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 2706 states have (on average 1.3263118994826313) internal successors, (3589), 2750 states have internal predecessors, (3589), 359 states have call successors, (359), 252 states have call predecessors, (359), 284 states have return successors, (508), 355 states have call predecessors, (508), 359 states have call successors, (508) [2022-10-16 04:21:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 4456 transitions. [2022-10-16 04:21:38,142 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 4456 transitions. Word has length 133 [2022-10-16 04:21:38,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:38,143 INFO L495 AbstractCegarLoop]: Abstraction has 3350 states and 4456 transitions. [2022-10-16 04:21:38,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 04:21:38,144 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 4456 transitions. [2022-10-16 04:21:38,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-16 04:21:38,153 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:38,153 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:38,199 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 04:21:38,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:38,367 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:38,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:38,368 INFO L85 PathProgramCache]: Analyzing trace with hash -411418609, now seen corresponding path program 1 times [2022-10-16 04:21:38,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:38,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851057832] [2022-10-16 04:21:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:38,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:21:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 04:21:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:21:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 04:21:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,570 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 04:21:38,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:38,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851057832] [2022-10-16 04:21:38,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851057832] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:38,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439626252] [2022-10-16 04:21:38,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:38,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:38,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:38,572 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 04:21:38,591 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 04:21:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:38,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 04:21:38,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:38,721 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 04:21:38,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:38,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439626252] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:38,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:38,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-10-16 04:21:38,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581604698] [2022-10-16 04:21:38,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:38,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:21:38,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:38,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:21:38,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:38,724 INFO L87 Difference]: Start difference. First operand 3350 states and 4456 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-16 04:21:38,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:38,764 INFO L93 Difference]: Finished difference Result 3376 states and 4411 transitions. [2022-10-16 04:21:38,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:21:38,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 134 [2022-10-16 04:21:38,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:38,786 INFO L225 Difference]: With dead ends: 3376 [2022-10-16 04:21:38,787 INFO L226 Difference]: Without dead ends: 3376 [2022-10-16 04:21:38,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:38,788 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 98 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:38,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 373 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:38,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2022-10-16 04:21:38,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 3334. [2022-10-16 04:21:38,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 2690 states have (on average 1.3022304832713754) internal successors, (3503), 2734 states have internal predecessors, (3503), 359 states have call successors, (359), 252 states have call predecessors, (359), 284 states have return successors, (508), 355 states have call predecessors, (508), 359 states have call successors, (508) [2022-10-16 04:21:38,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4370 transitions. [2022-10-16 04:21:38,897 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4370 transitions. Word has length 134 [2022-10-16 04:21:38,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:38,898 INFO L495 AbstractCegarLoop]: Abstraction has 3334 states and 4370 transitions. [2022-10-16 04:21:38,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-16 04:21:38,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4370 transitions. [2022-10-16 04:21:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-16 04:21:38,907 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:38,907 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:38,947 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 04:21:39,120 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,SelfDestructingSolverStorable9 [2022-10-16 04:21:39,121 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:39,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:39,122 INFO L85 PathProgramCache]: Analyzing trace with hash 170798895, now seen corresponding path program 1 times [2022-10-16 04:21:39,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:39,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776630561] [2022-10-16 04:21:39,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:39,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:21:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 04:21:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:21:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 04:21:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 04:21:39,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:39,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776630561] [2022-10-16 04:21:39,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776630561] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:39,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666335941] [2022-10-16 04:21:39,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:39,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:39,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:39,312 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 04:21:39,332 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 04:21:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:21:39,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:39,455 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 04:21:39,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:39,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666335941] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:39,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:39,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-10-16 04:21:39,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039384179] [2022-10-16 04:21:39,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:39,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:21:39,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:39,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:21:39,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:39,459 INFO L87 Difference]: Start difference. First operand 3334 states and 4370 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-16 04:21:39,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:39,503 INFO L93 Difference]: Finished difference Result 3516 states and 4448 transitions. [2022-10-16 04:21:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:21:39,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 134 [2022-10-16 04:21:39,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:39,526 INFO L225 Difference]: With dead ends: 3516 [2022-10-16 04:21:39,527 INFO L226 Difference]: Without dead ends: 3516 [2022-10-16 04:21:39,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:21:39,528 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 119 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:39,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 166 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:39,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3516 states. [2022-10-16 04:21:39,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3516 to 3334. [2022-10-16 04:21:39,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 2690 states have (on average 1.262081784386617) internal successors, (3395), 2734 states have internal predecessors, (3395), 359 states have call successors, (359), 252 states have call predecessors, (359), 284 states have return successors, (482), 355 states have call predecessors, (482), 359 states have call successors, (482) [2022-10-16 04:21:39,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4236 transitions. [2022-10-16 04:21:39,665 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4236 transitions. Word has length 134 [2022-10-16 04:21:39,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:39,665 INFO L495 AbstractCegarLoop]: Abstraction has 3334 states and 4236 transitions. [2022-10-16 04:21:39,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-16 04:21:39,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4236 transitions. [2022-10-16 04:21:39,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 04:21:39,674 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:39,674 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:39,716 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 04:21:39,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:39,889 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:39,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:39,890 INFO L85 PathProgramCache]: Analyzing trace with hash -419070616, now seen corresponding path program 1 times [2022-10-16 04:21:39,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:39,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903381352] [2022-10-16 04:21:39,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:39,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:39,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:21:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 04:21:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:21:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 04:21:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 04:21:40,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:40,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903381352] [2022-10-16 04:21:40,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903381352] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:40,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281534003] [2022-10-16 04:21:40,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:40,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:40,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:40,085 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 04:21:40,106 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 04:21:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 04:21:40,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-16 04:21:40,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:40,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281534003] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:40,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:40,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-10-16 04:21:40,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449305567] [2022-10-16 04:21:40,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:40,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 04:21:40,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:40,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 04:21:40,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 04:21:40,299 INFO L87 Difference]: Start difference. First operand 3334 states and 4236 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:21:40,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:40,418 INFO L93 Difference]: Finished difference Result 2682 states and 3298 transitions. [2022-10-16 04:21:40,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 04:21:40,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 135 [2022-10-16 04:21:40,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:40,439 INFO L225 Difference]: With dead ends: 2682 [2022-10-16 04:21:40,439 INFO L226 Difference]: Without dead ends: 2682 [2022-10-16 04:21:40,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:21:40,441 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 137 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:40,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 257 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:21:40,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2022-10-16 04:21:40,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2658. [2022-10-16 04:21:40,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2658 states, 2142 states have (on average 1.2254901960784315) internal successors, (2625), 2168 states have internal predecessors, (2625), 295 states have call successors, (295), 204 states have call predecessors, (295), 220 states have return successors, (354), 289 states have call predecessors, (354), 295 states have call successors, (354) [2022-10-16 04:21:40,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2658 states to 2658 states and 3274 transitions. [2022-10-16 04:21:40,549 INFO L78 Accepts]: Start accepts. Automaton has 2658 states and 3274 transitions. Word has length 135 [2022-10-16 04:21:40,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:40,549 INFO L495 AbstractCegarLoop]: Abstraction has 2658 states and 3274 transitions. [2022-10-16 04:21:40,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:21:40,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2658 states and 3274 transitions. [2022-10-16 04:21:40,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 04:21:40,558 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:40,558 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:40,599 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 04:21:40,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:40,772 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:40,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:40,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1726213014, now seen corresponding path program 1 times [2022-10-16 04:21:40,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:40,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918870516] [2022-10-16 04:21:40,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:40,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:21:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:40,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 04:21:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:21:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 04:21:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,037 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 04:21:41,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:41,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918870516] [2022-10-16 04:21:41,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918870516] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:41,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764922828] [2022-10-16 04:21:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:41,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:41,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:41,040 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 04:21:41,057 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 04:21:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 04:21:41,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:41,208 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-16 04:21:41,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:41,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764922828] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:41,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:41,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-10-16 04:21:41,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967071921] [2022-10-16 04:21:41,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:41,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 04:21:41,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:41,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 04:21:41,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 04:21:41,210 INFO L87 Difference]: Start difference. First operand 2658 states and 3274 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:21:41,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:41,383 INFO L93 Difference]: Finished difference Result 2611 states and 3100 transitions. [2022-10-16 04:21:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:21:41,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 135 [2022-10-16 04:21:41,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:41,397 INFO L225 Difference]: With dead ends: 2611 [2022-10-16 04:21:41,398 INFO L226 Difference]: Without dead ends: 2611 [2022-10-16 04:21:41,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-10-16 04:21:41,399 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 158 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:41,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 264 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 04:21:41,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2022-10-16 04:21:41,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 1652. [2022-10-16 04:21:41,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1348 states have (on average 1.1802670623145401) internal successors, (1591), 1362 states have internal predecessors, (1591), 173 states have call successors, (173), 122 states have call predecessors, (173), 130 states have return successors, (203), 169 states have call predecessors, (203), 173 states have call successors, (203) [2022-10-16 04:21:41,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1967 transitions. [2022-10-16 04:21:41,458 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 1967 transitions. Word has length 135 [2022-10-16 04:21:41,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:41,459 INFO L495 AbstractCegarLoop]: Abstraction has 1652 states and 1967 transitions. [2022-10-16 04:21:41,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:21:41,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 1967 transitions. [2022-10-16 04:21:41,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 04:21:41,463 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:41,463 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:41,499 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 04:21:41,677 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,SelfDestructingSolverStorable12 [2022-10-16 04:21:41,678 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:41,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:41,679 INFO L85 PathProgramCache]: Analyzing trace with hash 171283752, now seen corresponding path program 1 times [2022-10-16 04:21:41,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:41,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226528885] [2022-10-16 04:21:41,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:41,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:21:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 04:21:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:21:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 04:21:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,831 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 04:21:41,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:41,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226528885] [2022-10-16 04:21:41,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226528885] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:41,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212771130] [2022-10-16 04:21:41,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:41,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:41,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:41,834 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 04:21:41,840 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 04:21:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:41,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 04:21:41,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:41,967 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-10-16 04:21:41,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:41,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212771130] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:41,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:41,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2022-10-16 04:21:41,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981657016] [2022-10-16 04:21:41,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:41,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 04:21:41,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:41,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 04:21:41,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:21:41,970 INFO L87 Difference]: Start difference. First operand 1652 states and 1967 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:21:42,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:42,010 INFO L93 Difference]: Finished difference Result 1529 states and 1768 transitions. [2022-10-16 04:21:42,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:21:42,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 135 [2022-10-16 04:21:42,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:42,016 INFO L225 Difference]: With dead ends: 1529 [2022-10-16 04:21:42,017 INFO L226 Difference]: Without dead ends: 1137 [2022-10-16 04:21:42,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 04:21:42,018 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 48 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:42,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 537 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:42,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-10-16 04:21:42,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1101. [2022-10-16 04:21:42,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1101 states, 904 states have (on average 1.1537610619469028) internal successors, (1043), 914 states have internal predecessors, (1043), 110 states have call successors, (110), 79 states have call predecessors, (110), 86 states have return successors, (121), 108 states have call predecessors, (121), 110 states have call successors, (121) [2022-10-16 04:21:42,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1274 transitions. [2022-10-16 04:21:42,048 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1274 transitions. Word has length 135 [2022-10-16 04:21:42,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:42,048 INFO L495 AbstractCegarLoop]: Abstraction has 1101 states and 1274 transitions. [2022-10-16 04:21:42,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:21:42,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1274 transitions. [2022-10-16 04:21:42,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 04:21:42,052 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:42,063 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:42,102 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 04:21:42,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 04:21:42,276 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:42,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:42,277 INFO L85 PathProgramCache]: Analyzing trace with hash 683314852, now seen corresponding path program 1 times [2022-10-16 04:21:42,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:42,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368544175] [2022-10-16 04:21:42,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:42,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:21:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 04:21:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:21:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 04:21:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,460 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-10-16 04:21:42,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:42,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368544175] [2022-10-16 04:21:42,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368544175] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:21:42,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194908263] [2022-10-16 04:21:42,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:42,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:21:42,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:21:42,463 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 04:21:42,472 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 04:21:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:42,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 04:21:42,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:21:42,606 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 04:21:42,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:21:42,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194908263] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:42,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:21:42,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2022-10-16 04:21:42,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051752626] [2022-10-16 04:21:42,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:42,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 04:21:42,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:42,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 04:21:42,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:21:42,609 INFO L87 Difference]: Start difference. First operand 1101 states and 1274 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:21:42,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:42,650 INFO L93 Difference]: Finished difference Result 1129 states and 1281 transitions. [2022-10-16 04:21:42,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:21:42,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 135 [2022-10-16 04:21:42,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:42,668 INFO L225 Difference]: With dead ends: 1129 [2022-10-16 04:21:42,669 INFO L226 Difference]: Without dead ends: 1129 [2022-10-16 04:21:42,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 04:21:42,670 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 10 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:42,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 523 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:21:42,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2022-10-16 04:21:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1113. [2022-10-16 04:21:42,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 916 states have (on average 1.1288209606986899) internal successors, (1034), 926 states have internal predecessors, (1034), 110 states have call successors, (110), 79 states have call predecessors, (110), 86 states have return successors, (121), 108 states have call predecessors, (121), 110 states have call successors, (121) [2022-10-16 04:21:42,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1265 transitions. [2022-10-16 04:21:42,701 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1265 transitions. Word has length 135 [2022-10-16 04:21:42,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:42,702 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1265 transitions. [2022-10-16 04:21:42,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:21:42,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1265 transitions. [2022-10-16 04:21:42,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 04:21:42,705 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:42,705 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:42,743 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 04:21:42,919 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,SelfDestructingSolverStorable14 [2022-10-16 04:21:42,920 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:42,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:42,920 INFO L85 PathProgramCache]: Analyzing trace with hash -73980256, now seen corresponding path program 1 times [2022-10-16 04:21:42,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:42,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120199761] [2022-10-16 04:21:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:42,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:21:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 04:21:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:21:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 04:21:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,094 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 04:21:43,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:43,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120199761] [2022-10-16 04:21:43,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120199761] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:43,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:43,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:21:43,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353968091] [2022-10-16 04:21:43,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:43,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:21:43,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:43,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:21:43,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:21:43,097 INFO L87 Difference]: Start difference. First operand 1113 states and 1265 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-10-16 04:21:43,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:43,628 INFO L93 Difference]: Finished difference Result 2068 states and 2334 transitions. [2022-10-16 04:21:43,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 04:21:43,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 135 [2022-10-16 04:21:43,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:43,638 INFO L225 Difference]: With dead ends: 2068 [2022-10-16 04:21:43,638 INFO L226 Difference]: Without dead ends: 2068 [2022-10-16 04:21:43,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-10-16 04:21:43,639 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 470 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:43,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 474 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 04:21:43,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2022-10-16 04:21:43,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1489. [2022-10-16 04:21:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1226 states have (on average 1.1305057096247961) internal successors, (1386), 1240 states have internal predecessors, (1386), 144 states have call successors, (144), 103 states have call predecessors, (144), 118 states have return successors, (163), 146 states have call predecessors, (163), 144 states have call successors, (163) [2022-10-16 04:21:43,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 1693 transitions. [2022-10-16 04:21:43,686 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 1693 transitions. Word has length 135 [2022-10-16 04:21:43,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:43,686 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 1693 transitions. [2022-10-16 04:21:43,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-10-16 04:21:43,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 1693 transitions. [2022-10-16 04:21:43,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-16 04:21:43,692 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:21:43,692 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:43,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 04:21:43,693 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:21:43,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:21:43,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1211279963, now seen corresponding path program 2 times [2022-10-16 04:21:43,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:21:43,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400404001] [2022-10-16 04:21:43,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:21:43,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:21:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:21:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 04:21:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 04:21:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:21:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 04:21:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:21:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 04:21:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:21:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 04:21:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 04:21:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:21:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-10-16 04:21:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:21:43,891 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-10-16 04:21:43,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:21:43,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400404001] [2022-10-16 04:21:43,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400404001] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:21:43,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:21:43,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:21:43,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860136054] [2022-10-16 04:21:43,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:21:43,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:21:43,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:21:43,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:21:43,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:21:43,894 INFO L87 Difference]: Start difference. First operand 1489 states and 1693 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 5 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2022-10-16 04:21:44,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:21:44,483 INFO L93 Difference]: Finished difference Result 1734 states and 1952 transitions. [2022-10-16 04:21:44,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 04:21:44,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 5 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 174 [2022-10-16 04:21:44,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:21:44,485 INFO L225 Difference]: With dead ends: 1734 [2022-10-16 04:21:44,485 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 04:21:44,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:21:44,486 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 582 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 04:21:44,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 418 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 04:21:44,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 04:21:44,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 04:21:44,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 04:21:44,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 04:21:44,487 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2022-10-16 04:21:44,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:21:44,488 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 04:21:44,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 5 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2022-10-16 04:21:44,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 04:21:44,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 04:21:44,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-16 04:21:44,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-16 04:21:44,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 04:21:44,497 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:21:44,500 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 04:21:44,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 04:21:44 BoogieIcfgContainer [2022-10-16 04:21:44,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 04:21:44,505 INFO L158 Benchmark]: Toolchain (without parser) took 16124.57ms. Allocated memory was 162.5MB in the beginning and 291.5MB in the end (delta: 129.0MB). Free memory was 136.7MB in the beginning and 191.3MB in the end (delta: -54.7MB). Peak memory consumption was 75.9MB. Max. memory is 8.0GB. [2022-10-16 04:21:44,505 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 162.5MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 04:21:44,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.15ms. Allocated memory is still 162.5MB. Free memory was 136.5MB in the beginning and 124.1MB in the end (delta: 12.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-16 04:21:44,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.94ms. Allocated memory is still 162.5MB. Free memory was 124.1MB in the beginning and 122.0MB in the end (delta: 2.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 04:21:44,506 INFO L158 Benchmark]: Boogie Preprocessor took 80.72ms. Allocated memory is still 162.5MB. Free memory was 122.0MB in the beginning and 120.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 04:21:44,507 INFO L158 Benchmark]: RCFGBuilder took 914.74ms. Allocated memory is still 162.5MB. Free memory was 120.3MB in the beginning and 140.4MB in the end (delta: -20.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-10-16 04:21:44,507 INFO L158 Benchmark]: TraceAbstraction took 14592.53ms. Allocated memory was 162.5MB in the beginning and 291.5MB in the end (delta: 129.0MB). Free memory was 139.3MB in the beginning and 191.3MB in the end (delta: -52.0MB). Peak memory consumption was 78.0MB. Max. memory is 8.0GB. [2022-10-16 04:21:44,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 162.5MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 423.15ms. Allocated memory is still 162.5MB. Free memory was 136.5MB in the beginning and 124.1MB in the end (delta: 12.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 95.94ms. Allocated memory is still 162.5MB. Free memory was 124.1MB in the beginning and 122.0MB in the end (delta: 2.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 80.72ms. Allocated memory is still 162.5MB. Free memory was 122.0MB in the beginning and 120.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 914.74ms. Allocated memory is still 162.5MB. Free memory was 120.3MB in the beginning and 140.4MB in the end (delta: -20.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 14592.53ms. Allocated memory was 162.5MB in the beginning and 291.5MB in the end (delta: 129.0MB). Free memory was 139.3MB in the beginning and 191.3MB in the end (delta: -52.0MB). Peak memory consumption was 78.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 472]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 108 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 14.5s, OverallIterations: 17, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3572 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3457 mSDsluCounter, 6972 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3989 mSDsCounter, 638 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3478 IncrementalHoareTripleChecker+Invalid, 4116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 638 mSolverCounterUnsat, 2983 mSDtfsCounter, 3478 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1732 GetRequests, 1576 SyntacticMatches, 4 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3350occurred in iteration=9, InterpolantAutomatonStates: 126, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 2431 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 3085 NumberOfCodeBlocks, 3085 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3058 ConstructedInterpolants, 0 QuantifiedInterpolants, 4970 SizeOfPredicates, 6 NumberOfNonLiveVariables, 3880 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 27 InterpolantComputations, 17 PerfectInterpolantSequences, 1473/1654 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-16 04:21:44,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...