/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/kundu2.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:49:03,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:49:03,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:49:03,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:49:03,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:49:03,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:49:03,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:49:03,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:49:03,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:49:03,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:49:03,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:49:03,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:49:03,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:49:03,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:49:03,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:49:03,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:49:03,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:49:03,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:49:03,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:49:03,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:49:03,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:49:03,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:49:03,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:49:03,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:49:03,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:49:03,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:49:03,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:49:03,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:49:03,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:49:03,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:49:03,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:49:03,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:49:03,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:49:03,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:49:03,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:49:03,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:49:03,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:49:03,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:49:03,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:49:03,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:49:03,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:49:03,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 17:49:03,859 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:49:03,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:49:03,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:49:03,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:49:03,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:49:03,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:49:03,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:49:03,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:49:03,863 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:49:03,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:49:03,863 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:49:03,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:49:03,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:49:03,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:49:03,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:49:03,864 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:49:03,864 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:49:03,864 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:49:03,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:49:03,865 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:49:03,865 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:49:03,865 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:49:03,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:49:03,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:49:03,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:49:03,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:49:03,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:49:03,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:49:03,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:49:03,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:49:03,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:49:04,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:49:04,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:49:04,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:49:04,248 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:49:04,249 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:49:04,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/kundu2.cil.c [2022-10-15 17:49:04,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e86aa0892/5024fe1337bb4fa5be9af9a397d94d11/FLAG3d58ac5db [2022-10-15 17:49:05,000 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:49:05,001 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/kundu2.cil.c [2022-10-15 17:49:05,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e86aa0892/5024fe1337bb4fa5be9af9a397d94d11/FLAG3d58ac5db [2022-10-15 17:49:05,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e86aa0892/5024fe1337bb4fa5be9af9a397d94d11 [2022-10-15 17:49:05,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:49:05,386 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:49:05,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:49:05,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:49:05,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:49:05,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:05,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77343810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05, skipping insertion in model container [2022-10-15 17:49:05,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:05,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:49:05,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:49:05,687 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/kundu2.cil.c[636,649] [2022-10-15 17:49:05,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:49:05,768 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:49:05,782 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/kundu2.cil.c[636,649] [2022-10-15 17:49:05,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:49:05,844 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:49:05,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05 WrapperNode [2022-10-15 17:49:05,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:49:05,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:49:05,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:49:05,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:49:05,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:05,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:05,938 INFO L138 Inliner]: procedures = 34, calls = 40, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 310 [2022-10-15 17:49:05,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:49:05,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:49:05,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:49:05,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:49:05,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:05,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:05,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:05,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:05,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:05,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:05,997 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:06,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:06,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:49:06,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:49:06,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:49:06,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:49:06,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (1/1) ... [2022-10-15 17:49:06,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:49:06,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:06,045 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) [2022-10-15 17:49:06,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 17:49:06,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:49:06,092 INFO L130 BoogieDeclarations]: Found specification of procedure write_data [2022-10-15 17:49:06,093 INFO L138 BoogieDeclarations]: Found implementation of procedure write_data [2022-10-15 17:49:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-10-15 17:49:06,093 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-10-15 17:49:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-15 17:49:06,093 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-15 17:49:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-15 17:49:06,094 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-15 17:49:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-15 17:49:06,094 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-15 17:49:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-15 17:49:06,094 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-15 17:49:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:49:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-15 17:49:06,095 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-15 17:49:06,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:49:06,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:49:06,186 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:49:06,189 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:49:06,674 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:49:06,684 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:49:06,685 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-15 17:49:06,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:49:06 BoogieIcfgContainer [2022-10-15 17:49:06,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:49:06,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:49:06,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:49:06,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:49:06,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:49:05" (1/3) ... [2022-10-15 17:49:06,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d306f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:49:06, skipping insertion in model container [2022-10-15 17:49:06,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:05" (2/3) ... [2022-10-15 17:49:06,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d306f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:49:06, skipping insertion in model container [2022-10-15 17:49:06,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:49:06" (3/3) ... [2022-10-15 17:49:06,701 INFO L112 eAbstractionObserver]: Analyzing ICFG kundu2.cil.c [2022-10-15 17:49:06,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:49:06,727 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:49:06,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:49:06,826 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;@5994ce9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:49:06,827 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:49:06,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 107 states have (on average 1.5233644859813085) internal successors, (163), 112 states have internal predecessors, (163), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-15 17:49:06,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-15 17:49:06,848 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:06,848 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] [2022-10-15 17:49:06,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:06,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:06,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2052284008, now seen corresponding path program 1 times [2022-10-15 17:49:06,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:06,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424194349] [2022-10-15 17:49:06,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:06,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 17:49:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:07,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:07,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424194349] [2022-10-15 17:49:07,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424194349] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:07,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:07,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:49:07,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380501437] [2022-10-15 17:49:07,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:07,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:49:07,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:07,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:49:07,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:49:07,258 INFO L87 Difference]: Start difference. First operand has 135 states, 107 states have (on average 1.5233644859813085) internal successors, (163), 112 states have internal predecessors, (163), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:49:07,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:07,427 INFO L93 Difference]: Finished difference Result 150 states and 214 transitions. [2022-10-15 17:49:07,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:49:07,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2022-10-15 17:49:07,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:07,445 INFO L225 Difference]: With dead ends: 150 [2022-10-15 17:49:07,445 INFO L226 Difference]: Without dead ends: 148 [2022-10-15 17:49:07,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:49:07,451 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 220 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:07,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 310 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:07,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-10-15 17:49:07,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 130. [2022-10-15 17:49:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 104 states have (on average 1.4423076923076923) internal successors, (150), 108 states have internal predecessors, (150), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-15 17:49:07,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 183 transitions. [2022-10-15 17:49:07,531 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 183 transitions. Word has length 41 [2022-10-15 17:49:07,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:07,532 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 183 transitions. [2022-10-15 17:49:07,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:49:07,532 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 183 transitions. [2022-10-15 17:49:07,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-15 17:49:07,535 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:07,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:07,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:49:07,536 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:07,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:07,537 INFO L85 PathProgramCache]: Analyzing trace with hash 885583024, now seen corresponding path program 1 times [2022-10-15 17:49:07,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:07,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102034448] [2022-10-15 17:49:07,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:07,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 17:49:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 17:49:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:07,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:07,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102034448] [2022-10-15 17:49:07,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102034448] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:07,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:07,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:49:07,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091634198] [2022-10-15 17:49:07,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:07,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:07,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:07,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:07,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:49:07,838 INFO L87 Difference]: Start difference. First operand 130 states and 183 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:49:08,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:08,175 INFO L93 Difference]: Finished difference Result 282 states and 398 transitions. [2022-10-15 17:49:08,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:08,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2022-10-15 17:49:08,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:08,180 INFO L225 Difference]: With dead ends: 282 [2022-10-15 17:49:08,181 INFO L226 Difference]: Without dead ends: 282 [2022-10-15 17:49:08,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:49:08,183 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 391 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:08,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 852 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:49:08,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-10-15 17:49:08,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 237. [2022-10-15 17:49:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 194 states have (on average 1.4381443298969072) internal successors, (279), 199 states have internal predecessors, (279), 29 states have call successors, (29), 13 states have call predecessors, (29), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-10-15 17:49:08,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 334 transitions. [2022-10-15 17:49:08,214 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 334 transitions. Word has length 59 [2022-10-15 17:49:08,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:08,215 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 334 transitions. [2022-10-15 17:49:08,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:49:08,215 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 334 transitions. [2022-10-15 17:49:08,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-15 17:49:08,218 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:08,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:08,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:49:08,219 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:08,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:08,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1510853967, now seen corresponding path program 1 times [2022-10-15 17:49:08,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:08,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233451829] [2022-10-15 17:49:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:08,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 17:49:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 17:49:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:08,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:08,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233451829] [2022-10-15 17:49:08,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233451829] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:08,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:08,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:49:08,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909045455] [2022-10-15 17:49:08,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:08,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:08,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:08,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:08,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:08,537 INFO L87 Difference]: Start difference. First operand 237 states and 334 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:49:08,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:08,770 INFO L93 Difference]: Finished difference Result 309 states and 447 transitions. [2022-10-15 17:49:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:49:08,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2022-10-15 17:49:08,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:08,774 INFO L225 Difference]: With dead ends: 309 [2022-10-15 17:49:08,775 INFO L226 Difference]: Without dead ends: 309 [2022-10-15 17:49:08,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:08,777 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 183 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:08,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 872 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:08,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-10-15 17:49:08,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 240. [2022-10-15 17:49:08,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.4263959390862944) internal successors, (281), 202 states have internal predecessors, (281), 29 states have call successors, (29), 13 states have call predecessors, (29), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-10-15 17:49:08,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 336 transitions. [2022-10-15 17:49:08,802 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 336 transitions. Word has length 59 [2022-10-15 17:49:08,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:08,803 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 336 transitions. [2022-10-15 17:49:08,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:49:08,803 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 336 transitions. [2022-10-15 17:49:08,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-15 17:49:08,805 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:08,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:08,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:49:08,806 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:08,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:08,807 INFO L85 PathProgramCache]: Analyzing trace with hash 938746163, now seen corresponding path program 1 times [2022-10-15 17:49:08,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:08,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82697625] [2022-10-15 17:49:08,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:08,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 17:49:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 17:49:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:08,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:08,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82697625] [2022-10-15 17:49:08,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82697625] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:08,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:08,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:49:08,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882017128] [2022-10-15 17:49:08,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:08,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:08,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:08,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:09,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:09,000 INFO L87 Difference]: Start difference. First operand 240 states and 336 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:49:09,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:09,254 INFO L93 Difference]: Finished difference Result 326 states and 475 transitions. [2022-10-15 17:49:09,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 17:49:09,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2022-10-15 17:49:09,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:09,258 INFO L225 Difference]: With dead ends: 326 [2022-10-15 17:49:09,258 INFO L226 Difference]: Without dead ends: 326 [2022-10-15 17:49:09,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:49:09,260 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 196 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:09,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 778 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:09,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-10-15 17:49:09,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 246. [2022-10-15 17:49:09,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 203 states have (on average 1.4137931034482758) internal successors, (287), 208 states have internal predecessors, (287), 29 states have call successors, (29), 13 states have call predecessors, (29), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-10-15 17:49:09,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 342 transitions. [2022-10-15 17:49:09,284 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 342 transitions. Word has length 59 [2022-10-15 17:49:09,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:09,285 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 342 transitions. [2022-10-15 17:49:09,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:49:09,285 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 342 transitions. [2022-10-15 17:49:09,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-15 17:49:09,287 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:09,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:09,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:49:09,288 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:09,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:09,289 INFO L85 PathProgramCache]: Analyzing trace with hash 866359605, now seen corresponding path program 1 times [2022-10-15 17:49:09,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:09,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365172460] [2022-10-15 17:49:09,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:09,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 17:49:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 17:49:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:09,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:09,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365172460] [2022-10-15 17:49:09,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365172460] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:09,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:09,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:49:09,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234271060] [2022-10-15 17:49:09,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:09,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:09,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:09,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:09,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:09,441 INFO L87 Difference]: Start difference. First operand 246 states and 342 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:49:10,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:10,035 INFO L93 Difference]: Finished difference Result 785 states and 1112 transitions. [2022-10-15 17:49:10,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:49:10,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2022-10-15 17:49:10,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:10,042 INFO L225 Difference]: With dead ends: 785 [2022-10-15 17:49:10,042 INFO L226 Difference]: Without dead ends: 785 [2022-10-15 17:49:10,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:10,044 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 779 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:10,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1038 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:49:10,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2022-10-15 17:49:10,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 458. [2022-10-15 17:49:10,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 381 states have (on average 1.4068241469816274) internal successors, (536), 388 states have internal predecessors, (536), 51 states have call successors, (51), 25 states have call predecessors, (51), 24 states have return successors, (51), 45 states have call predecessors, (51), 48 states have call successors, (51) [2022-10-15 17:49:10,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 638 transitions. [2022-10-15 17:49:10,086 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 638 transitions. Word has length 59 [2022-10-15 17:49:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:10,088 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 638 transitions. [2022-10-15 17:49:10,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:49:10,089 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 638 transitions. [2022-10-15 17:49:10,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 17:49:10,097 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:10,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:10,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:49:10,098 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:10,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:10,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1180376048, now seen corresponding path program 1 times [2022-10-15 17:49:10,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:10,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941105206] [2022-10-15 17:49:10,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:10,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:10,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:10,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941105206] [2022-10-15 17:49:10,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941105206] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:10,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:10,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:49:10,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236681259] [2022-10-15 17:49:10,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:10,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:10,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:10,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:10,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:10,226 INFO L87 Difference]: Start difference. First operand 458 states and 638 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:49:10,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:10,450 INFO L93 Difference]: Finished difference Result 559 states and 808 transitions. [2022-10-15 17:49:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 17:49:10,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2022-10-15 17:49:10,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:10,456 INFO L225 Difference]: With dead ends: 559 [2022-10-15 17:49:10,456 INFO L226 Difference]: Without dead ends: 559 [2022-10-15 17:49:10,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:49:10,458 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 75 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:10,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 762 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:10,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-10-15 17:49:10,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 470. [2022-10-15 17:49:10,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 393 states have (on average 1.3944020356234097) internal successors, (548), 400 states have internal predecessors, (548), 51 states have call successors, (51), 25 states have call predecessors, (51), 24 states have return successors, (51), 45 states have call predecessors, (51), 48 states have call successors, (51) [2022-10-15 17:49:10,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 650 transitions. [2022-10-15 17:49:10,484 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 650 transitions. Word has length 60 [2022-10-15 17:49:10,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:10,485 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 650 transitions. [2022-10-15 17:49:10,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:49:10,485 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 650 transitions. [2022-10-15 17:49:10,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 17:49:10,487 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:10,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:10,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:49:10,487 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:10,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:10,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1191363214, now seen corresponding path program 1 times [2022-10-15 17:49:10,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:10,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818633559] [2022-10-15 17:49:10,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:10,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:10,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:10,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818633559] [2022-10-15 17:49:10,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818633559] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:10,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:10,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:49:10,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941704106] [2022-10-15 17:49:10,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:10,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:10,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:10,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:10,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:10,621 INFO L87 Difference]: Start difference. First operand 470 states and 650 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 17:49:10,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:10,847 INFO L93 Difference]: Finished difference Result 1023 states and 1413 transitions. [2022-10-15 17:49:10,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:49:10,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2022-10-15 17:49:10,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:10,854 INFO L225 Difference]: With dead ends: 1023 [2022-10-15 17:49:10,854 INFO L226 Difference]: Without dead ends: 1023 [2022-10-15 17:49:10,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:10,856 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 252 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:10,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 815 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:49:10,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2022-10-15 17:49:10,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 874. [2022-10-15 17:49:10,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 733 states have (on average 1.3874488403819918) internal successors, (1017), 748 states have internal predecessors, (1017), 91 states have call successors, (91), 49 states have call predecessors, (91), 48 states have return successors, (93), 77 states have call predecessors, (93), 88 states have call successors, (93) [2022-10-15 17:49:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1201 transitions. [2022-10-15 17:49:10,892 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1201 transitions. Word has length 60 [2022-10-15 17:49:10,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:10,893 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1201 transitions. [2022-10-15 17:49:10,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 17:49:10,893 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1201 transitions. [2022-10-15 17:49:10,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 17:49:10,895 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:10,895 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:10,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:49:10,895 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:10,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:10,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1806019002, now seen corresponding path program 1 times [2022-10-15 17:49:10,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:10,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230371651] [2022-10-15 17:49:10,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:10,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:11,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:11,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230371651] [2022-10-15 17:49:11,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230371651] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:11,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97786947] [2022-10-15 17:49:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:11,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:11,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:11,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:11,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:49:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-15 17:49:11,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:11,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:11,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:49:11,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:11,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97786947] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:11,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-15 17:49:11,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 6] total 8 [2022-10-15 17:49:11,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811160213] [2022-10-15 17:49:11,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:11,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:11,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:11,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:11,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:49:11,413 INFO L87 Difference]: Start difference. First operand 874 states and 1201 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 17:49:11,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:11,602 INFO L93 Difference]: Finished difference Result 1665 states and 2278 transitions. [2022-10-15 17:49:11,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:49:11,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 71 [2022-10-15 17:49:11,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:11,614 INFO L225 Difference]: With dead ends: 1665 [2022-10-15 17:49:11,614 INFO L226 Difference]: Without dead ends: 1665 [2022-10-15 17:49:11,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:11,615 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 295 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:11,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1350 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:11,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2022-10-15 17:49:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1630. [2022-10-15 17:49:11,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1373 states have (on average 1.3852876911871814) internal successors, (1902), 1397 states have internal predecessors, (1902), 165 states have call successors, (165), 91 states have call predecessors, (165), 90 states have return successors, (172), 142 states have call predecessors, (172), 162 states have call successors, (172) [2022-10-15 17:49:11,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2239 transitions. [2022-10-15 17:49:11,680 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2239 transitions. Word has length 71 [2022-10-15 17:49:11,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:11,680 INFO L495 AbstractCegarLoop]: Abstraction has 1630 states and 2239 transitions. [2022-10-15 17:49:11,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 17:49:11,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2239 transitions. [2022-10-15 17:49:11,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 17:49:11,682 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:11,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:11,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:11,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:11,899 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:11,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:11,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1858481713, now seen corresponding path program 1 times [2022-10-15 17:49:11,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:11,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772104254] [2022-10-15 17:49:11,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:11,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:12,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:12,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772104254] [2022-10-15 17:49:12,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772104254] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:12,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:12,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:49:12,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479935021] [2022-10-15 17:49:12,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:12,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:12,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:12,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:12,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:12,020 INFO L87 Difference]: Start difference. First operand 1630 states and 2239 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 17:49:12,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:12,418 INFO L93 Difference]: Finished difference Result 3552 states and 4900 transitions. [2022-10-15 17:49:12,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:49:12,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 73 [2022-10-15 17:49:12,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:12,441 INFO L225 Difference]: With dead ends: 3552 [2022-10-15 17:49:12,441 INFO L226 Difference]: Without dead ends: 3552 [2022-10-15 17:49:12,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:49:12,443 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 382 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:12,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 769 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:49:12,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2022-10-15 17:49:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3229. [2022-10-15 17:49:12,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 2751 states have (on average 1.3645946928389676) internal successors, (3754), 2793 states have internal predecessors, (3754), 292 states have call successors, (292), 170 states have call predecessors, (292), 184 states have return successors, (401), 267 states have call predecessors, (401), 289 states have call successors, (401) [2022-10-15 17:49:12,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4447 transitions. [2022-10-15 17:49:12,603 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4447 transitions. Word has length 73 [2022-10-15 17:49:12,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:12,603 INFO L495 AbstractCegarLoop]: Abstraction has 3229 states and 4447 transitions. [2022-10-15 17:49:12,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 17:49:12,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4447 transitions. [2022-10-15 17:49:12,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 17:49:12,606 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:12,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:12,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:49:12,607 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:12,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash 750305745, now seen corresponding path program 1 times [2022-10-15 17:49:12,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:12,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511681649] [2022-10-15 17:49:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:12,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:12,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:12,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511681649] [2022-10-15 17:49:12,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511681649] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:12,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:12,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:49:12,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118374737] [2022-10-15 17:49:12,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:12,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:12,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:12,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:12,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:49:12,687 INFO L87 Difference]: Start difference. First operand 3229 states and 4447 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 17:49:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:12,871 INFO L93 Difference]: Finished difference Result 3589 states and 4971 transitions. [2022-10-15 17:49:12,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:12,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 73 [2022-10-15 17:49:12,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:12,893 INFO L225 Difference]: With dead ends: 3589 [2022-10-15 17:49:12,894 INFO L226 Difference]: Without dead ends: 3589 [2022-10-15 17:49:12,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:49:12,895 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 307 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:12,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 345 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:12,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3589 states. [2022-10-15 17:49:12,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3589 to 3224. [2022-10-15 17:49:12,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3224 states, 2749 states have (on average 1.364132411786104) internal successors, (3750), 2790 states have internal predecessors, (3750), 289 states have call successors, (289), 170 states have call predecessors, (289), 184 states have return successors, (397), 264 states have call predecessors, (397), 286 states have call successors, (397) [2022-10-15 17:49:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3224 states to 3224 states and 4436 transitions. [2022-10-15 17:49:13,007 INFO L78 Accepts]: Start accepts. Automaton has 3224 states and 4436 transitions. Word has length 73 [2022-10-15 17:49:13,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:13,007 INFO L495 AbstractCegarLoop]: Abstraction has 3224 states and 4436 transitions. [2022-10-15 17:49:13,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 17:49:13,008 INFO L276 IsEmpty]: Start isEmpty. Operand 3224 states and 4436 transitions. [2022-10-15 17:49:13,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 17:49:13,009 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:13,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:13,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:49:13,010 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:13,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:13,010 INFO L85 PathProgramCache]: Analyzing trace with hash 9583988, now seen corresponding path program 1 times [2022-10-15 17:49:13,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:13,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523374895] [2022-10-15 17:49:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:13,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:13,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:13,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523374895] [2022-10-15 17:49:13,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523374895] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:13,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:13,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:49:13,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581376749] [2022-10-15 17:49:13,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:13,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:13,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:13,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:13,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:49:13,087 INFO L87 Difference]: Start difference. First operand 3224 states and 4436 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 17:49:13,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:13,426 INFO L93 Difference]: Finished difference Result 6131 states and 8262 transitions. [2022-10-15 17:49:13,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:49:13,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 74 [2022-10-15 17:49:13,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:13,466 INFO L225 Difference]: With dead ends: 6131 [2022-10-15 17:49:13,466 INFO L226 Difference]: Without dead ends: 6131 [2022-10-15 17:49:13,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:13,468 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 378 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:13,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 518 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:49:13,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2022-10-15 17:49:13,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 5072. [2022-10-15 17:49:13,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5072 states, 4288 states have (on average 1.3316231343283582) internal successors, (5710), 4353 states have internal predecessors, (5710), 475 states have call successors, (475), 283 states have call predecessors, (475), 307 states have return successors, (665), 436 states have call predecessors, (665), 472 states have call successors, (665) [2022-10-15 17:49:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 6850 transitions. [2022-10-15 17:49:13,646 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 6850 transitions. Word has length 74 [2022-10-15 17:49:13,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:13,647 INFO L495 AbstractCegarLoop]: Abstraction has 5072 states and 6850 transitions. [2022-10-15 17:49:13,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 17:49:13,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 6850 transitions. [2022-10-15 17:49:13,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 17:49:13,649 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:13,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:13,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:49:13,650 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:13,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:13,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1552790772, now seen corresponding path program 1 times [2022-10-15 17:49:13,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:13,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030592445] [2022-10-15 17:49:13,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:13,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:13,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:13,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030592445] [2022-10-15 17:49:13,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030592445] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:13,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:13,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:49:13,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3915667] [2022-10-15 17:49:13,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:13,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:49:13,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:13,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:49:13,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:49:13,794 INFO L87 Difference]: Start difference. First operand 5072 states and 6850 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 17:49:14,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:14,741 INFO L93 Difference]: Finished difference Result 10255 states and 14420 transitions. [2022-10-15 17:49:14,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-15 17:49:14,742 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 75 [2022-10-15 17:49:14,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:14,811 INFO L225 Difference]: With dead ends: 10255 [2022-10-15 17:49:14,811 INFO L226 Difference]: Without dead ends: 10255 [2022-10-15 17:49:14,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2022-10-15 17:49:14,813 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 830 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:14,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1304 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 17:49:14,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10255 states. [2022-10-15 17:49:15,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10255 to 7446. [2022-10-15 17:49:15,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 6310 states have (on average 1.3318541996830429) internal successors, (8404), 6391 states have internal predecessors, (8404), 687 states have call successors, (687), 411 states have call predecessors, (687), 447 states have return successors, (971), 644 states have call predecessors, (971), 684 states have call successors, (971) [2022-10-15 17:49:15,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 10062 transitions. [2022-10-15 17:49:15,162 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 10062 transitions. Word has length 75 [2022-10-15 17:49:15,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:15,163 INFO L495 AbstractCegarLoop]: Abstraction has 7446 states and 10062 transitions. [2022-10-15 17:49:15,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 17:49:15,164 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 10062 transitions. [2022-10-15 17:49:15,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:49:15,166 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:15,167 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:49:15,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:49:15,167 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:15,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:15,168 INFO L85 PathProgramCache]: Analyzing trace with hash -316529330, now seen corresponding path program 1 times [2022-10-15 17:49:15,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:15,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002963675] [2022-10-15 17:49:15,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:15,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-15 17:49:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 17:49:15,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:15,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002963675] [2022-10-15 17:49:15,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002963675] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:15,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301568122] [2022-10-15 17:49:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:15,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:15,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:15,289 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) [2022-10-15 17:49:15,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 17:49:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:15,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:49:15,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:15,398 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:15,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:15,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301568122] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:15,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:15,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-15 17:49:15,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510820149] [2022-10-15 17:49:15,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:15,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:15,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:15,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:15,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:15,401 INFO L87 Difference]: Start difference. First operand 7446 states and 10062 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 17:49:15,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:15,492 INFO L93 Difference]: Finished difference Result 12145 states and 16453 transitions. [2022-10-15 17:49:15,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:15,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 79 [2022-10-15 17:49:15,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:15,548 INFO L225 Difference]: With dead ends: 12145 [2022-10-15 17:49:15,548 INFO L226 Difference]: Without dead ends: 12145 [2022-10-15 17:49:15,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:15,549 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 131 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:15,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 487 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:15,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12145 states. [2022-10-15 17:49:15,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12145 to 11579. [2022-10-15 17:49:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11579 states, 9765 states have (on average 1.3217613927291347) internal successors, (12907), 9896 states have internal predecessors, (12907), 1097 states have call successors, (1097), 657 states have call predecessors, (1097), 715 states have return successors, (1717), 1027 states have call predecessors, (1717), 1094 states have call successors, (1717) [2022-10-15 17:49:16,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11579 states to 11579 states and 15721 transitions. [2022-10-15 17:49:16,003 INFO L78 Accepts]: Start accepts. Automaton has 11579 states and 15721 transitions. Word has length 79 [2022-10-15 17:49:16,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:16,004 INFO L495 AbstractCegarLoop]: Abstraction has 11579 states and 15721 transitions. [2022-10-15 17:49:16,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 17:49:16,004 INFO L276 IsEmpty]: Start isEmpty. Operand 11579 states and 15721 transitions. [2022-10-15 17:49:16,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 17:49:16,008 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:16,008 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:16,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-15 17:49:16,223 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,SelfDestructingSolverStorable12 [2022-10-15 17:49:16,223 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:16,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:16,225 INFO L85 PathProgramCache]: Analyzing trace with hash -389565903, now seen corresponding path program 1 times [2022-10-15 17:49:16,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:16,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900275992] [2022-10-15 17:49:16,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:16,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:49:16,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:16,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900275992] [2022-10-15 17:49:16,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900275992] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:16,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:16,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:49:16,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519067883] [2022-10-15 17:49:16,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:16,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:49:16,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:16,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:49:16,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:49:16,418 INFO L87 Difference]: Start difference. First operand 11579 states and 15721 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 17:49:17,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:17,222 INFO L93 Difference]: Finished difference Result 19012 states and 25875 transitions. [2022-10-15 17:49:17,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 17:49:17,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2022-10-15 17:49:17,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:17,290 INFO L225 Difference]: With dead ends: 19012 [2022-10-15 17:49:17,290 INFO L226 Difference]: Without dead ends: 19012 [2022-10-15 17:49:17,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:49:17,291 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 809 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:17,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 1258 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:49:17,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19012 states. [2022-10-15 17:49:17,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19012 to 15961. [2022-10-15 17:49:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15961 states, 13551 states have (on average 1.3302339310751974) internal successors, (18026), 13762 states have internal predecessors, (18026), 1425 states have call successors, (1425), 853 states have call predecessors, (1425), 983 states have return successors, (2443), 1347 states have call predecessors, (2443), 1422 states have call successors, (2443) [2022-10-15 17:49:17,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15961 states to 15961 states and 21894 transitions. [2022-10-15 17:49:17,898 INFO L78 Accepts]: Start accepts. Automaton has 15961 states and 21894 transitions. Word has length 84 [2022-10-15 17:49:17,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:17,899 INFO L495 AbstractCegarLoop]: Abstraction has 15961 states and 21894 transitions. [2022-10-15 17:49:17,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 17:49:17,899 INFO L276 IsEmpty]: Start isEmpty. Operand 15961 states and 21894 transitions. [2022-10-15 17:49:17,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-15 17:49:17,906 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:17,906 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:17,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:49:17,907 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:17,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:17,907 INFO L85 PathProgramCache]: Analyzing trace with hash -583590623, now seen corresponding path program 1 times [2022-10-15 17:49:17,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:17,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383347178] [2022-10-15 17:49:17,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:17,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:49:18,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:18,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383347178] [2022-10-15 17:49:18,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383347178] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:18,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:18,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:49:18,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888798042] [2022-10-15 17:49:18,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:18,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:49:18,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:18,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:49:18,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:49:18,283 INFO L87 Difference]: Start difference. First operand 15961 states and 21894 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 17:49:19,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:19,844 INFO L93 Difference]: Finished difference Result 34481 states and 49473 transitions. [2022-10-15 17:49:19,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-15 17:49:19,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 87 [2022-10-15 17:49:19,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:19,987 INFO L225 Difference]: With dead ends: 34481 [2022-10-15 17:49:19,987 INFO L226 Difference]: Without dead ends: 34481 [2022-10-15 17:49:19,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2022-10-15 17:49:19,990 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 1095 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 1651 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:19,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 2815 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1651 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-15 17:49:20,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34481 states. [2022-10-15 17:49:20,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34481 to 23026. [2022-10-15 17:49:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23026 states, 19608 states have (on average 1.335577315381477) internal successors, (26188), 19889 states have internal predecessors, (26188), 2016 states have call successors, (2016), 1207 states have call predecessors, (2016), 1400 states have return successors, (3536), 1931 states have call predecessors, (3536), 2013 states have call successors, (3536) [2022-10-15 17:49:20,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23026 states to 23026 states and 31740 transitions. [2022-10-15 17:49:20,979 INFO L78 Accepts]: Start accepts. Automaton has 23026 states and 31740 transitions. Word has length 87 [2022-10-15 17:49:20,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:20,979 INFO L495 AbstractCegarLoop]: Abstraction has 23026 states and 31740 transitions. [2022-10-15 17:49:20,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 17:49:20,980 INFO L276 IsEmpty]: Start isEmpty. Operand 23026 states and 31740 transitions. [2022-10-15 17:49:20,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-15 17:49:20,985 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:20,986 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:20,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:49:20,986 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:20,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:20,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1070672435, now seen corresponding path program 1 times [2022-10-15 17:49:20,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:20,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084322808] [2022-10-15 17:49:20,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:20,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 17:49:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:49:21,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:21,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084322808] [2022-10-15 17:49:21,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084322808] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:21,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:21,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:49:21,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93951254] [2022-10-15 17:49:21,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:21,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:49:21,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:21,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:49:21,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:49:21,130 INFO L87 Difference]: Start difference. First operand 23026 states and 31740 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-15 17:49:22,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:22,365 INFO L93 Difference]: Finished difference Result 47447 states and 64274 transitions. [2022-10-15 17:49:22,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-15 17:49:22,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 95 [2022-10-15 17:49:22,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:22,660 INFO L225 Difference]: With dead ends: 47447 [2022-10-15 17:49:22,661 INFO L226 Difference]: Without dead ends: 47447 [2022-10-15 17:49:22,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2022-10-15 17:49:22,662 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1177 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:22,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 1082 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 17:49:22,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47447 states. [2022-10-15 17:49:23,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47447 to 44535. [2022-10-15 17:49:23,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44535 states, 37827 states have (on average 1.3082189970127158) internal successors, (49486), 38363 states have internal predecessors, (49486), 3900 states have call successors, (3900), 2376 states have call predecessors, (3900), 2806 states have return successors, (7008), 3797 states have call predecessors, (7008), 3897 states have call successors, (7008) [2022-10-15 17:49:24,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44535 states to 44535 states and 60394 transitions. [2022-10-15 17:49:24,041 INFO L78 Accepts]: Start accepts. Automaton has 44535 states and 60394 transitions. Word has length 95 [2022-10-15 17:49:24,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:24,041 INFO L495 AbstractCegarLoop]: Abstraction has 44535 states and 60394 transitions. [2022-10-15 17:49:24,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-15 17:49:24,042 INFO L276 IsEmpty]: Start isEmpty. Operand 44535 states and 60394 transitions. [2022-10-15 17:49:24,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-15 17:49:24,050 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:24,050 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:24,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:49:24,051 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:24,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:24,051 INFO L85 PathProgramCache]: Analyzing trace with hash 371115591, now seen corresponding path program 1 times [2022-10-15 17:49:24,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:24,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084621294] [2022-10-15 17:49:24,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:24,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-15 17:49:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:24,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:24,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084621294] [2022-10-15 17:49:24,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084621294] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:24,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522772764] [2022-10-15 17:49:24,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:24,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:24,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:24,431 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) [2022-10-15 17:49:24,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 17:49:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-15 17:49:24,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:24,654 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:24,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:49:24,846 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:24,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522772764] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:24,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-15 17:49:24,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 7] total 15 [2022-10-15 17:49:24,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449150384] [2022-10-15 17:49:24,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:24,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:49:24,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:24,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:49:24,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:49:24,849 INFO L87 Difference]: Start difference. First operand 44535 states and 60394 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 17:49:25,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:25,448 INFO L93 Difference]: Finished difference Result 47198 states and 63686 transitions. [2022-10-15 17:49:25,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 17:49:25,449 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 96 [2022-10-15 17:49:25,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:25,610 INFO L225 Difference]: With dead ends: 47198 [2022-10-15 17:49:25,610 INFO L226 Difference]: Without dead ends: 47198 [2022-10-15 17:49:25,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 197 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-10-15 17:49:25,612 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 432 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:25,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 990 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:25,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47198 states. [2022-10-15 17:49:26,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47198 to 45619. [2022-10-15 17:49:26,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45619 states, 38730 states have (on average 1.305396333591531) internal successors, (50558), 39284 states have internal predecessors, (50558), 4006 states have call successors, (4006), 2443 states have call predecessors, (4006), 2881 states have return successors, (7155), 3893 states have call predecessors, (7155), 4003 states have call successors, (7155) [2022-10-15 17:49:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45619 states to 45619 states and 61719 transitions. [2022-10-15 17:49:27,232 INFO L78 Accepts]: Start accepts. Automaton has 45619 states and 61719 transitions. Word has length 96 [2022-10-15 17:49:27,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:27,232 INFO L495 AbstractCegarLoop]: Abstraction has 45619 states and 61719 transitions. [2022-10-15 17:49:27,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 17:49:27,232 INFO L276 IsEmpty]: Start isEmpty. Operand 45619 states and 61719 transitions. [2022-10-15 17:49:27,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-15 17:49:27,238 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:27,239 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:27,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:27,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:27,453 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:27,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:27,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1091668670, now seen corresponding path program 1 times [2022-10-15 17:49:27,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:27,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515796611] [2022-10-15 17:49:27,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:27,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-15 17:49:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:27,618 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:49:27,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:27,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515796611] [2022-10-15 17:49:27,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515796611] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:27,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:27,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:49:27,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52999445] [2022-10-15 17:49:27,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:27,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:27,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:27,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:27,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:27,622 INFO L87 Difference]: Start difference. First operand 45619 states and 61719 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-15 17:49:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:28,293 INFO L93 Difference]: Finished difference Result 49423 states and 66329 transitions. [2022-10-15 17:49:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:49:28,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 97 [2022-10-15 17:49:28,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:28,780 INFO L225 Difference]: With dead ends: 49423 [2022-10-15 17:49:28,780 INFO L226 Difference]: Without dead ends: 49423 [2022-10-15 17:49:28,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:49:28,781 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 379 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:28,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 595 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:49:28,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49423 states. [2022-10-15 17:49:29,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49423 to 45507. [2022-10-15 17:49:29,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45507 states, 38506 states have (on average 1.297148496338233) internal successors, (49948), 39172 states have internal predecessors, (49948), 4006 states have call successors, (4006), 2443 states have call predecessors, (4006), 2993 states have return successors, (6707), 3893 states have call predecessors, (6707), 4003 states have call successors, (6707) [2022-10-15 17:49:30,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45507 states to 45507 states and 60661 transitions. [2022-10-15 17:49:30,157 INFO L78 Accepts]: Start accepts. Automaton has 45507 states and 60661 transitions. Word has length 97 [2022-10-15 17:49:30,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:30,157 INFO L495 AbstractCegarLoop]: Abstraction has 45507 states and 60661 transitions. [2022-10-15 17:49:30,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-15 17:49:30,158 INFO L276 IsEmpty]: Start isEmpty. Operand 45507 states and 60661 transitions. [2022-10-15 17:49:30,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-15 17:49:30,165 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:30,165 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:30,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:49:30,166 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:30,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:30,166 INFO L85 PathProgramCache]: Analyzing trace with hash 96974972, now seen corresponding path program 1 times [2022-10-15 17:49:30,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:30,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197349553] [2022-10-15 17:49:30,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:30,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-15 17:49:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-15 17:49:30,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:30,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197349553] [2022-10-15 17:49:30,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197349553] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:30,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:30,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:49:30,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674230297] [2022-10-15 17:49:30,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:30,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:30,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:30,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:30,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:49:30,284 INFO L87 Difference]: Start difference. First operand 45507 states and 60661 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 17:49:30,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:30,850 INFO L93 Difference]: Finished difference Result 49217 states and 65958 transitions. [2022-10-15 17:49:30,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:49:30,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 97 [2022-10-15 17:49:30,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:31,057 INFO L225 Difference]: With dead ends: 49217 [2022-10-15 17:49:31,057 INFO L226 Difference]: Without dead ends: 49217 [2022-10-15 17:49:31,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:49:31,059 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 311 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:31,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 340 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:31,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49217 states. [2022-10-15 17:49:32,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49217 to 45344. [2022-10-15 17:49:32,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45344 states, 38373 states have (on average 1.2973966069892893) internal successors, (49785), 39037 states have internal predecessors, (49785), 3987 states have call successors, (3987), 2433 states have call predecessors, (3987), 2982 states have return successors, (6686), 3874 states have call predecessors, (6686), 3984 states have call successors, (6686) [2022-10-15 17:49:32,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45344 states to 45344 states and 60458 transitions. [2022-10-15 17:49:32,724 INFO L78 Accepts]: Start accepts. Automaton has 45344 states and 60458 transitions. Word has length 97 [2022-10-15 17:49:32,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:32,724 INFO L495 AbstractCegarLoop]: Abstraction has 45344 states and 60458 transitions. [2022-10-15 17:49:32,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 17:49:32,724 INFO L276 IsEmpty]: Start isEmpty. Operand 45344 states and 60458 transitions. [2022-10-15 17:49:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-15 17:49:32,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:32,731 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:32,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:49:32,732 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:32,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:32,732 INFO L85 PathProgramCache]: Analyzing trace with hash 965625699, now seen corresponding path program 1 times [2022-10-15 17:49:32,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:32,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722042075] [2022-10-15 17:49:32,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:32,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 17:49:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,834 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:49:32,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:32,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722042075] [2022-10-15 17:49:32,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722042075] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:32,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:32,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:49:32,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492892167] [2022-10-15 17:49:32,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:32,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:49:32,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:32,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:49:32,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:49:32,836 INFO L87 Difference]: Start difference. First operand 45344 states and 60458 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-15 17:49:34,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:34,095 INFO L93 Difference]: Finished difference Result 48219 states and 63632 transitions. [2022-10-15 17:49:34,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-15 17:49:34,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 98 [2022-10-15 17:49:34,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:34,224 INFO L225 Difference]: With dead ends: 48219 [2022-10-15 17:49:34,224 INFO L226 Difference]: Without dead ends: 48219 [2022-10-15 17:49:34,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2022-10-15 17:49:34,226 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1270 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:34,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 1019 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 17:49:34,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48219 states. [2022-10-15 17:49:35,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48219 to 45482. [2022-10-15 17:49:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45482 states, 38511 states have (on average 1.289397834384981) internal successors, (49656), 39175 states have internal predecessors, (49656), 3987 states have call successors, (3987), 2433 states have call predecessors, (3987), 2982 states have return successors, (6350), 3874 states have call predecessors, (6350), 3984 states have call successors, (6350) [2022-10-15 17:49:35,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45482 states to 45482 states and 59993 transitions. [2022-10-15 17:49:35,437 INFO L78 Accepts]: Start accepts. Automaton has 45482 states and 59993 transitions. Word has length 98 [2022-10-15 17:49:35,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:35,438 INFO L495 AbstractCegarLoop]: Abstraction has 45482 states and 59993 transitions. [2022-10-15 17:49:35,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-10-15 17:49:35,438 INFO L276 IsEmpty]: Start isEmpty. Operand 45482 states and 59993 transitions. [2022-10-15 17:49:35,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-15 17:49:35,446 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:35,447 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, 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] [2022-10-15 17:49:35,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 17:49:35,447 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:35,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:35,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1188862600, now seen corresponding path program 1 times [2022-10-15 17:49:35,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:35,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107802914] [2022-10-15 17:49:35,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:35,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 17:49:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-15 17:49:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-15 17:49:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-15 17:49:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-15 17:49:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 17:49:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,829 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-15 17:49:35,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:35,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107802914] [2022-10-15 17:49:35,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107802914] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:35,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743354394] [2022-10-15 17:49:35,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:35,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:35,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:35,831 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) [2022-10-15 17:49:35,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 17:49:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:49:35,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-15 17:49:35,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:35,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743354394] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:35,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:35,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2022-10-15 17:49:35,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115900581] [2022-10-15 17:49:35,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:35,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:35,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:35,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:35,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:35,978 INFO L87 Difference]: Start difference. First operand 45482 states and 59993 transitions. Second operand has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-10-15 17:49:36,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:36,211 INFO L93 Difference]: Finished difference Result 45481 states and 59992 transitions. [2022-10-15 17:49:36,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:36,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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 105 [2022-10-15 17:49:36,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:36,373 INFO L225 Difference]: With dead ends: 45481 [2022-10-15 17:49:36,373 INFO L226 Difference]: Without dead ends: 45479 [2022-10-15 17:49:36,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:36,375 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 69 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:36,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 235 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:36,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45479 states. [2022-10-15 17:49:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45479 to 45479. [2022-10-15 17:49:37,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45479 states, 38509 states have (on average 1.2777792204419747) internal successors, (49206), 39172 states have internal predecessors, (49206), 3987 states have call successors, (3987), 2433 states have call predecessors, (3987), 2982 states have return successors, (6350), 3874 states have call predecessors, (6350), 3984 states have call successors, (6350) [2022-10-15 17:49:37,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45479 states to 45479 states and 59543 transitions. [2022-10-15 17:49:37,349 INFO L78 Accepts]: Start accepts. Automaton has 45479 states and 59543 transitions. Word has length 105 [2022-10-15 17:49:37,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:37,349 INFO L495 AbstractCegarLoop]: Abstraction has 45479 states and 59543 transitions. [2022-10-15 17:49:37,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2022-10-15 17:49:37,350 INFO L276 IsEmpty]: Start isEmpty. Operand 45479 states and 59543 transitions. [2022-10-15 17:49:37,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-15 17:49:37,625 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:37,625 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:37,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:37,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:37,827 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:37,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:37,828 INFO L85 PathProgramCache]: Analyzing trace with hash -171023679, now seen corresponding path program 1 times [2022-10-15 17:49:37,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:37,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457010120] [2022-10-15 17:49:37,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:37,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 17:49:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-15 17:49:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 17:49:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-15 17:49:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:37,922 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 17:49:37,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:37,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457010120] [2022-10-15 17:49:37,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457010120] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:37,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:37,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:49:37,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322255618] [2022-10-15 17:49:37,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:37,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:37,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:37,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:37,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:49:37,924 INFO L87 Difference]: Start difference. First operand 45479 states and 59543 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 17:49:38,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:38,536 INFO L93 Difference]: Finished difference Result 78973 states and 104123 transitions. [2022-10-15 17:49:38,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:49:38,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 120 [2022-10-15 17:49:38,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:38,763 INFO L225 Difference]: With dead ends: 78973 [2022-10-15 17:49:38,764 INFO L226 Difference]: Without dead ends: 78973 [2022-10-15 17:49:38,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:38,767 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 394 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:38,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 482 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:49:38,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78973 states. [2022-10-15 17:49:40,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78973 to 72408. [2022-10-15 17:49:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72408 states, 61512 states have (on average 1.2818311874105865) internal successors, (78848), 62588 states have internal predecessors, (78848), 6164 states have call successors, (6164), 3832 states have call predecessors, (6164), 4731 states have return successors, (9893), 5988 states have call predecessors, (9893), 6161 states have call successors, (9893) [2022-10-15 17:49:40,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72408 states to 72408 states and 94905 transitions. [2022-10-15 17:49:40,949 INFO L78 Accepts]: Start accepts. Automaton has 72408 states and 94905 transitions. Word has length 120 [2022-10-15 17:49:40,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:40,950 INFO L495 AbstractCegarLoop]: Abstraction has 72408 states and 94905 transitions. [2022-10-15 17:49:40,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 17:49:40,952 INFO L276 IsEmpty]: Start isEmpty. Operand 72408 states and 94905 transitions. [2022-10-15 17:49:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-10-15 17:49:40,972 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:40,972 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:40,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-15 17:49:40,975 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:40,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:40,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1607224058, now seen corresponding path program 1 times [2022-10-15 17:49:40,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:40,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122174140] [2022-10-15 17:49:40,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:40,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-15 17:49:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 17:49:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-15 17:49:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 17:49:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-15 17:49:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 21 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 17:49:41,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:41,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122174140] [2022-10-15 17:49:41,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122174140] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:41,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005958365] [2022-10-15 17:49:41,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:41,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:41,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:41,235 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) [2022-10-15 17:49:41,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 17:49:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:41,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:49:41,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-15 17:49:41,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:41,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005958365] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:41,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:41,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2022-10-15 17:49:41,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808907431] [2022-10-15 17:49:41,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:41,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:41,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:41,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:41,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:41,520 INFO L87 Difference]: Start difference. First operand 72408 states and 94905 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 17:49:42,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:42,021 INFO L93 Difference]: Finished difference Result 103970 states and 133846 transitions. [2022-10-15 17:49:42,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:42,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 137 [2022-10-15 17:49:42,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:42,681 INFO L225 Difference]: With dead ends: 103970 [2022-10-15 17:49:42,682 INFO L226 Difference]: Without dead ends: 103970 [2022-10-15 17:49:42,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-15 17:49:42,687 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 80 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:42,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 357 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:42,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103970 states. [2022-10-15 17:49:44,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103970 to 103965. [2022-10-15 17:49:44,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103965 states, 87905 states have (on average 1.2687105397872704) internal successors, (111526), 89407 states have internal predecessors, (111526), 8954 states have call successors, (8954), 5826 states have call predecessors, (8954), 7105 states have return successors, (13362), 8732 states have call predecessors, (13362), 8951 states have call successors, (13362) [2022-10-15 17:49:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103965 states to 103965 states and 133842 transitions. [2022-10-15 17:49:44,504 INFO L78 Accepts]: Start accepts. Automaton has 103965 states and 133842 transitions. Word has length 137 [2022-10-15 17:49:44,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:44,504 INFO L495 AbstractCegarLoop]: Abstraction has 103965 states and 133842 transitions. [2022-10-15 17:49:44,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 17:49:44,505 INFO L276 IsEmpty]: Start isEmpty. Operand 103965 states and 133842 transitions. [2022-10-15 17:49:44,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-10-15 17:49:44,524 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:44,525 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:44,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:44,739 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,SelfDestructingSolverStorable22 [2022-10-15 17:49:44,740 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:44,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:44,741 INFO L85 PathProgramCache]: Analyzing trace with hash -487120730, now seen corresponding path program 1 times [2022-10-15 17:49:44,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:44,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002190186] [2022-10-15 17:49:44,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:44,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:49:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 17:49:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 17:49:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:49:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 17:49:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-15 17:49:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-15 17:49:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 17:49:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-15 17:49:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-15 17:49:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-15 17:49:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 17:49:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-15 17:49:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-10-15 17:49:45,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:45,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002190186] [2022-10-15 17:49:45,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002190186] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:45,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812452323] [2022-10-15 17:49:45,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:45,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:45,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:45,363 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) [2022-10-15 17:49:45,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 17:49:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:45,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:49:45,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:45,601 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-15 17:49:45,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:45,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812452323] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:45,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:45,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2022-10-15 17:49:45,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412449128] [2022-10-15 17:49:45,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:45,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:45,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:45,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:45,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:45,604 INFO L87 Difference]: Start difference. First operand 103965 states and 133842 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-15 17:49:46,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:46,809 INFO L93 Difference]: Finished difference Result 201274 states and 257828 transitions. [2022-10-15 17:49:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:46,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 144 [2022-10-15 17:49:46,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:47,290 INFO L225 Difference]: With dead ends: 201274 [2022-10-15 17:49:47,290 INFO L226 Difference]: Without dead ends: 201274 [2022-10-15 17:49:47,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:47,291 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 104 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:47,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 355 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:47,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201274 states.