/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/systemc/token_ring.12.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:50:43,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:50:43,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:50:43,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:50:43,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:50:43,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:50:43,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:50:43,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:50:43,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:50:43,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:50:43,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:50:43,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:50:43,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:50:43,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:50:43,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:50:43,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:50:43,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:50:43,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:50:43,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:50:43,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:50:43,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:50:43,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:50:43,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:50:43,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:50:43,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:50:43,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:50:43,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:50:43,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:50:43,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:50:43,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:50:43,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:50:43,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:50:43,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:50:43,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:50:43,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:50:43,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:50:43,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:50:43,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:50:43,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:50:43,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:50:43,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:50:43,764 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 17:50:43,824 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:50:43,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:50:43,825 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:50:43,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:50:43,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:50:43,828 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:50:43,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:50:43,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:50:43,831 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:50:43,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:50:43,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:50:43,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:50:43,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:50:43,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:50:43,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:50:43,833 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:50:43,833 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:50:43,834 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:50:43,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:50:43,834 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:50:43,834 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:50:43,834 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:50:43,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:50:43,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:50:43,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:50:43,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:50:43,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:50:43,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:50:43,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:50:43,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:50:43,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:50:44,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:50:44,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:50:44,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:50:44,241 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:50:44,242 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:50:44,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.12.cil-2.c [2022-10-15 17:50:44,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76b5eb03/4b82f703e5dc4e6a9cf01febaddcdc81/FLAGf0235d3ff [2022-10-15 17:50:45,055 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:50:45,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.12.cil-2.c [2022-10-15 17:50:45,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76b5eb03/4b82f703e5dc4e6a9cf01febaddcdc81/FLAGf0235d3ff [2022-10-15 17:50:45,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76b5eb03/4b82f703e5dc4e6a9cf01febaddcdc81 [2022-10-15 17:50:45,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:50:45,356 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:50:45,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:50:45,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:50:45,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:50:45,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:50:45" (1/1) ... [2022-10-15 17:50:45,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b75101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:45, skipping insertion in model container [2022-10-15 17:50:45,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:50:45" (1/1) ... [2022-10-15 17:50:45,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:50:45,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:50:45,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.12.cil-2.c[671,684] [2022-10-15 17:50:45,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:50:45,902 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:50:45,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.12.cil-2.c[671,684] [2022-10-15 17:50:45,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:50:46,018 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:50:46,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46 WrapperNode [2022-10-15 17:50:46,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:50:46,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:50:46,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:50:46,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:50:46,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (1/1) ... [2022-10-15 17:50:46,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (1/1) ... [2022-10-15 17:50:46,104 INFO L138 Inliner]: procedures = 52, calls = 67, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 853 [2022-10-15 17:50:46,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:50:46,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:50:46,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:50:46,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:50:46,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (1/1) ... [2022-10-15 17:50:46,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (1/1) ... [2022-10-15 17:50:46,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (1/1) ... [2022-10-15 17:50:46,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (1/1) ... [2022-10-15 17:50:46,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (1/1) ... [2022-10-15 17:50:46,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (1/1) ... [2022-10-15 17:50:46,198 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (1/1) ... [2022-10-15 17:50:46,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (1/1) ... [2022-10-15 17:50:46,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:50:46,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:50:46,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:50:46,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:50:46,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (1/1) ... [2022-10-15 17:50:46,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:50:46,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:50:46,295 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 17:50:46,319 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 17:50:46,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:50:46,364 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-15 17:50:46,364 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-15 17:50:46,364 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-15 17:50:46,364 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-15 17:50:46,364 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-15 17:50:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-15 17:50:46,365 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-15 17:50:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-15 17:50:46,365 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-15 17:50:46,365 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-15 17:50:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-15 17:50:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-15 17:50:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:50:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:50:46,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:50:46,557 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:50:46,560 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:50:47,609 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:50:47,636 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:50:47,636 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-10-15 17:50:47,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:50:47 BoogieIcfgContainer [2022-10-15 17:50:47,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:50:47,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:50:47,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:50:47,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:50:47,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:50:45" (1/3) ... [2022-10-15 17:50:47,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8ca4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:50:47, skipping insertion in model container [2022-10-15 17:50:47,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:46" (2/3) ... [2022-10-15 17:50:47,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8ca4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:50:47, skipping insertion in model container [2022-10-15 17:50:47,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:50:47" (3/3) ... [2022-10-15 17:50:47,651 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.12.cil-2.c [2022-10-15 17:50:47,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:50:47,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:50:47,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:50:47,748 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;@6a61a54d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:50:47,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:50:47,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 383 states, 348 states have (on average 1.6666666666666667) internal successors, (580), 351 states have internal predecessors, (580), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-10-15 17:50:47,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-15 17:50:47,778 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:47,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:47,780 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:47,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:47,787 INFO L85 PathProgramCache]: Analyzing trace with hash -764172187, now seen corresponding path program 1 times [2022-10-15 17:50:47,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:47,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547661425] [2022-10-15 17:50:47,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:47,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:48,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:48,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:50:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:48,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:50:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:50:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:48,689 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 17:50:48,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:48,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547661425] [2022-10-15 17:50:48,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547661425] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:48,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:48,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:50:48,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843622318] [2022-10-15 17:50:48,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:48,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:50:48,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:48,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:50:48,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:50:48,746 INFO L87 Difference]: Start difference. First operand has 383 states, 348 states have (on average 1.6666666666666667) internal successors, (580), 351 states have internal predecessors, (580), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (4), 3 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 17:50:50,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:50,697 INFO L93 Difference]: Finished difference Result 524 states and 844 transitions. [2022-10-15 17:50:50,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:50:50,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (4), 3 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 163 [2022-10-15 17:50:50,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:50,721 INFO L225 Difference]: With dead ends: 524 [2022-10-15 17:50:50,721 INFO L226 Difference]: Without dead ends: 522 [2022-10-15 17:50:50,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:50:50,732 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 1031 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:50,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 1060 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 17:50:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-10-15 17:50:50,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 380. [2022-10-15 17:50:50,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 346 states have (on average 1.5751445086705202) internal successors, (545), 348 states have internal predecessors, (545), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-10-15 17:50:50,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 597 transitions. [2022-10-15 17:50:50,860 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 597 transitions. Word has length 163 [2022-10-15 17:50:50,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:50,861 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 597 transitions. [2022-10-15 17:50:50,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (4), 3 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 17:50:50,861 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 597 transitions. [2022-10-15 17:50:50,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:50:50,871 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:50,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:50,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:50:50,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:50,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:50,873 INFO L85 PathProgramCache]: Analyzing trace with hash -382408497, now seen corresponding path program 1 times [2022-10-15 17:50:50,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:50,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192668808] [2022-10-15 17:50:50,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:50,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:51,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:51,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:50:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:51,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:50:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:51,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:50:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:51,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:50:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:51,212 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 17:50:51,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:51,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192668808] [2022-10-15 17:50:51,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192668808] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:51,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:51,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:50:51,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076372126] [2022-10-15 17:50:51,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:51,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:50:51,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:51,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:50:51,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:50:51,220 INFO L87 Difference]: Start difference. First operand 380 states and 597 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:53,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:53,012 INFO L93 Difference]: Finished difference Result 522 states and 841 transitions. [2022-10-15 17:50:53,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:50:53,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2022-10-15 17:50:53,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:53,018 INFO L225 Difference]: With dead ends: 522 [2022-10-15 17:50:53,018 INFO L226 Difference]: Without dead ends: 522 [2022-10-15 17:50:53,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:50:53,020 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 1020 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:53,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 1052 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-10-15 17:50:53,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-10-15 17:50:53,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 380. [2022-10-15 17:50:53,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 346 states have (on average 1.5722543352601157) internal successors, (544), 348 states have internal predecessors, (544), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-10-15 17:50:53,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 596 transitions. [2022-10-15 17:50:53,045 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 596 transitions. Word has length 177 [2022-10-15 17:50:53,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:53,045 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 596 transitions. [2022-10-15 17:50:53,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:53,046 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 596 transitions. [2022-10-15 17:50:53,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:50:53,050 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:53,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:53,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:50:53,051 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:53,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:53,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1812820369, now seen corresponding path program 1 times [2022-10-15 17:50:53,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:53,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531471088] [2022-10-15 17:50:53,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:53,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:53,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:53,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:50:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:53,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:50:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:53,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:50:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:53,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:50:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:53,452 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 17:50:53,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:53,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531471088] [2022-10-15 17:50:53,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531471088] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:53,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:53,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:50:53,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64508836] [2022-10-15 17:50:53,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:53,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:50:53,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:53,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:50:53,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:50:53,456 INFO L87 Difference]: Start difference. First operand 380 states and 596 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:56,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:56,882 INFO L93 Difference]: Finished difference Result 1042 states and 1680 transitions. [2022-10-15 17:50:56,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:50:56,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2022-10-15 17:50:56,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:56,890 INFO L225 Difference]: With dead ends: 1042 [2022-10-15 17:50:56,890 INFO L226 Difference]: Without dead ends: 1042 [2022-10-15 17:50:56,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:50:56,892 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 1555 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 2014 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:56,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 1676 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2014 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-10-15 17:50:56,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2022-10-15 17:50:56,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 756. [2022-10-15 17:50:56,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 694 states have (on average 1.5864553314121037) internal successors, (1101), 697 states have internal predecessors, (1101), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-10-15 17:50:56,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1198 transitions. [2022-10-15 17:50:56,933 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1198 transitions. Word has length 177 [2022-10-15 17:50:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:56,933 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 1198 transitions. [2022-10-15 17:50:56,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:56,934 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1198 transitions. [2022-10-15 17:50:56,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:50:56,937 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:56,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:56,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:50:56,938 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:56,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:56,939 INFO L85 PathProgramCache]: Analyzing trace with hash 936835093, now seen corresponding path program 1 times [2022-10-15 17:50:56,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:56,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273624636] [2022-10-15 17:50:56,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:56,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:57,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:50:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:50:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:57,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:50:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:57,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:50:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:57,317 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 17:50:57,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:57,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273624636] [2022-10-15 17:50:57,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273624636] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:57,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:57,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:57,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974941510] [2022-10-15 17:50:57,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:57,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:57,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:57,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:57,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:57,321 INFO L87 Difference]: Start difference. First operand 756 states and 1198 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:01,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:01,584 INFO L93 Difference]: Finished difference Result 1579 states and 2557 transitions. [2022-10-15 17:51:01,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:01,585 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2022-10-15 17:51:01,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:01,607 INFO L225 Difference]: With dead ends: 1579 [2022-10-15 17:51:01,607 INFO L226 Difference]: Without dead ends: 1579 [2022-10-15 17:51:01,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:01,611 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 1585 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 3126 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 3202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:01,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 2908 Invalid, 3202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3126 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-15 17:51:01,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-10-15 17:51:01,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1105. [2022-10-15 17:51:01,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1015 states have (on average 1.580295566502463) internal successors, (1604), 1019 states have internal predecessors, (1604), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2022-10-15 17:51:01,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1745 transitions. [2022-10-15 17:51:01,661 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1745 transitions. Word has length 177 [2022-10-15 17:51:01,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:01,662 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 1745 transitions. [2022-10-15 17:51:01,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:01,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1745 transitions. [2022-10-15 17:51:01,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:51:01,665 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:01,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:01,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:51:01,666 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:01,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:01,667 INFO L85 PathProgramCache]: Analyzing trace with hash 325566035, now seen corresponding path program 1 times [2022-10-15 17:51:01,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:01,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930388853] [2022-10-15 17:51:01,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:01,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:01,957 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 17:51:01,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:01,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930388853] [2022-10-15 17:51:01,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930388853] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:01,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:01,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:01,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919477632] [2022-10-15 17:51:01,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:01,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:01,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:01,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:01,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:01,961 INFO L87 Difference]: Start difference. First operand 1105 states and 1745 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:06,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:06,134 INFO L93 Difference]: Finished difference Result 2576 states and 4164 transitions. [2022-10-15 17:51:06,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:06,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2022-10-15 17:51:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:06,152 INFO L225 Difference]: With dead ends: 2576 [2022-10-15 17:51:06,153 INFO L226 Difference]: Without dead ends: 2576 [2022-10-15 17:51:06,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:06,154 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 1694 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 2778 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:06,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 2015 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2778 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-10-15 17:51:06,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2022-10-15 17:51:06,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 1804. [2022-10-15 17:51:06,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1658 states have (on average 1.574788902291918) internal successors, (2611), 1664 states have internal predecessors, (2611), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2022-10-15 17:51:06,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2844 transitions. [2022-10-15 17:51:06,226 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2844 transitions. Word has length 177 [2022-10-15 17:51:06,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:06,226 INFO L495 AbstractCegarLoop]: Abstraction has 1804 states and 2844 transitions. [2022-10-15 17:51:06,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:06,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2844 transitions. [2022-10-15 17:51:06,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:51:06,229 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:06,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:06,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:51:06,230 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:06,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:06,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1079625643, now seen corresponding path program 1 times [2022-10-15 17:51:06,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:06,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993946841] [2022-10-15 17:51:06,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:06,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:06,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:06,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:06,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:06,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:06,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:06,527 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 17:51:06,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:06,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993946841] [2022-10-15 17:51:06,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993946841] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:06,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:06,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:06,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760801161] [2022-10-15 17:51:06,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:06,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:06,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:06,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:06,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:06,531 INFO L87 Difference]: Start difference. First operand 1804 states and 2844 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:10,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:10,776 INFO L93 Difference]: Finished difference Result 4464 states and 7178 transitions. [2022-10-15 17:51:10,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:10,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2022-10-15 17:51:10,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:10,804 INFO L225 Difference]: With dead ends: 4464 [2022-10-15 17:51:10,805 INFO L226 Difference]: Without dead ends: 4464 [2022-10-15 17:51:10,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:10,806 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 1580 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 3125 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 2896 SdHoareTripleChecker+Invalid, 3206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:10,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 2896 Invalid, 3206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3125 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-15 17:51:10,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4464 states. [2022-10-15 17:51:10,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4464 to 3203. [2022-10-15 17:51:10,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 2945 states have (on average 1.570458404074703) internal successors, (4625), 2955 states have internal predecessors, (4625), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2022-10-15 17:51:10,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 5048 transitions. [2022-10-15 17:51:10,918 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 5048 transitions. Word has length 177 [2022-10-15 17:51:10,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:10,919 INFO L495 AbstractCegarLoop]: Abstraction has 3203 states and 5048 transitions. [2022-10-15 17:51:10,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 5048 transitions. [2022-10-15 17:51:10,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:51:10,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:10,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:10,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:51:10,924 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:10,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:10,924 INFO L85 PathProgramCache]: Analyzing trace with hash 814708243, now seen corresponding path program 1 times [2022-10-15 17:51:10,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:10,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107125880] [2022-10-15 17:51:10,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:10,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:11,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:11,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:11,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:11,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:11,259 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 17:51:11,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:11,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107125880] [2022-10-15 17:51:11,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107125880] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:11,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:11,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:11,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682044233] [2022-10-15 17:51:11,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:11,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:11,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:11,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:11,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:11,272 INFO L87 Difference]: Start difference. First operand 3203 states and 5048 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:15,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:15,501 INFO L93 Difference]: Finished difference Result 8231 states and 13202 transitions. [2022-10-15 17:51:15,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:15,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2022-10-15 17:51:15,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:15,549 INFO L225 Difference]: With dead ends: 8231 [2022-10-15 17:51:15,549 INFO L226 Difference]: Without dead ends: 8231 [2022-10-15 17:51:15,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:15,553 INFO L413 NwaCegarLoop]: 992 mSDtfsCounter, 1575 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 3187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:15,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 2888 Invalid, 3187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-15 17:51:15,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2022-10-15 17:51:15,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 6015. [2022-10-15 17:51:15,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6015 states, 5533 states have (on average 1.568227001626604) internal successors, (8677), 5551 states have internal predecessors, (8677), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2022-10-15 17:51:15,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6015 states to 6015 states and 9498 transitions. [2022-10-15 17:51:15,759 INFO L78 Accepts]: Start accepts. Automaton has 6015 states and 9498 transitions. Word has length 177 [2022-10-15 17:51:15,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:15,759 INFO L495 AbstractCegarLoop]: Abstraction has 6015 states and 9498 transitions. [2022-10-15 17:51:15,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:15,760 INFO L276 IsEmpty]: Start isEmpty. Operand 6015 states and 9498 transitions. [2022-10-15 17:51:15,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:51:15,764 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:15,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:15,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:51:15,765 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:15,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:15,765 INFO L85 PathProgramCache]: Analyzing trace with hash -108459183, now seen corresponding path program 1 times [2022-10-15 17:51:15,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:15,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325579957] [2022-10-15 17:51:15,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:15,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:15,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:15,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:16,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:16,053 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 17:51:16,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:16,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325579957] [2022-10-15 17:51:16,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325579957] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:16,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:16,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:16,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049154716] [2022-10-15 17:51:16,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:16,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:16,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:16,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:16,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:16,056 INFO L87 Difference]: Start difference. First operand 6015 states and 9498 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:20,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:20,294 INFO L93 Difference]: Finished difference Result 15769 states and 25304 transitions. [2022-10-15 17:51:20,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:20,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2022-10-15 17:51:20,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:20,383 INFO L225 Difference]: With dead ends: 15769 [2022-10-15 17:51:20,384 INFO L226 Difference]: Without dead ends: 15769 [2022-10-15 17:51:20,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:20,385 INFO L413 NwaCegarLoop]: 987 mSDtfsCounter, 1574 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 3097 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 3179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:20,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 2883 Invalid, 3179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3097 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-15 17:51:20,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15769 states. [2022-10-15 17:51:20,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15769 to 11652. [2022-10-15 17:51:20,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11652 states, 10722 states have (on average 1.5667785860846857) internal successors, (16799), 10756 states have internal predecessors, (16799), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-10-15 17:51:20,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11652 states to 11652 states and 18470 transitions. [2022-10-15 17:51:20,834 INFO L78 Accepts]: Start accepts. Automaton has 11652 states and 18470 transitions. Word has length 177 [2022-10-15 17:51:20,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:20,834 INFO L495 AbstractCegarLoop]: Abstraction has 11652 states and 18470 transitions. [2022-10-15 17:51:20,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 11652 states and 18470 transitions. [2022-10-15 17:51:20,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:51:20,845 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:20,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:20,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:51:20,846 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:20,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:20,848 INFO L85 PathProgramCache]: Analyzing trace with hash 277403219, now seen corresponding path program 1 times [2022-10-15 17:51:20,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:20,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550492004] [2022-10-15 17:51:20,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:20,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:21,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:21,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:21,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:21,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:21,143 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 17:51:21,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:21,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550492004] [2022-10-15 17:51:21,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550492004] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:21,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:21,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:21,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132301395] [2022-10-15 17:51:21,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:21,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:21,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:21,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:21,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:21,147 INFO L87 Difference]: Start difference. First operand 11652 states and 18470 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:25,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:25,581 INFO L93 Difference]: Finished difference Result 30831 states and 49626 transitions. [2022-10-15 17:51:25,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:25,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2022-10-15 17:51:25,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:25,736 INFO L225 Difference]: With dead ends: 30831 [2022-10-15 17:51:25,737 INFO L226 Difference]: Without dead ends: 30831 [2022-10-15 17:51:25,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:25,741 INFO L413 NwaCegarLoop]: 982 mSDtfsCounter, 1573 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 3089 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 3171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:25,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1592 Valid, 2878 Invalid, 3171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3089 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-10-15 17:51:25,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30831 states. [2022-10-15 17:51:26,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30831 to 22957. [2022-10-15 17:51:26,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22957 states, 21131 states have (on average 1.565898443045762) internal successors, (33089), 21197 states have internal predecessors, (33089), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2022-10-15 17:51:26,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22957 states to 22957 states and 36622 transitions. [2022-10-15 17:51:26,608 INFO L78 Accepts]: Start accepts. Automaton has 22957 states and 36622 transitions. Word has length 177 [2022-10-15 17:51:26,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:26,609 INFO L495 AbstractCegarLoop]: Abstraction has 22957 states and 36622 transitions. [2022-10-15 17:51:26,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:26,609 INFO L276 IsEmpty]: Start isEmpty. Operand 22957 states and 36622 transitions. [2022-10-15 17:51:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:51:26,632 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:26,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:26,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:51:26,633 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:26,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:26,634 INFO L85 PathProgramCache]: Analyzing trace with hash 12755729, now seen corresponding path program 1 times [2022-10-15 17:51:26,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:26,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941246089] [2022-10-15 17:51:26,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:26,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:26,953 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 17:51:26,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:26,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941246089] [2022-10-15 17:51:26,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941246089] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:26,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:26,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:26,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172930438] [2022-10-15 17:51:26,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:26,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:26,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:26,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:26,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:26,956 INFO L87 Difference]: Start difference. First operand 22957 states and 36622 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:31,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:31,552 INFO L93 Difference]: Finished difference Result 60925 states and 98664 transitions. [2022-10-15 17:51:31,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:51:31,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 177 [2022-10-15 17:51:31,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:31,874 INFO L225 Difference]: With dead ends: 60925 [2022-10-15 17:51:31,875 INFO L226 Difference]: Without dead ends: 60925 [2022-10-15 17:51:31,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:51:31,876 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 1572 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 3163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:31,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 2873 Invalid, 3163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-15 17:51:31,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60925 states. [2022-10-15 17:51:33,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60925 to 45630. [2022-10-15 17:51:33,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45630 states, 42012 states have (on average 1.5653384747215082) internal successors, (65763), 42142 states have internal predecessors, (65763), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2022-10-15 17:51:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45630 states to 45630 states and 73506 transitions. [2022-10-15 17:51:33,378 INFO L78 Accepts]: Start accepts. Automaton has 45630 states and 73506 transitions. Word has length 177 [2022-10-15 17:51:33,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:51:33,378 INFO L495 AbstractCegarLoop]: Abstraction has 45630 states and 73506 transitions. [2022-10-15 17:51:33,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:33,379 INFO L276 IsEmpty]: Start isEmpty. Operand 45630 states and 73506 transitions. [2022-10-15 17:51:33,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:51:33,408 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:51:33,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:33,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:51:33,409 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:51:33,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:51:33,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1943881363, now seen corresponding path program 1 times [2022-10-15 17:51:33,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:51:33,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105383559] [2022-10-15 17:51:33,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:51:33,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:51:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:33,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:51:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:33,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 17:51:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:34,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 17:51:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:34,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-15 17:51:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-15 17:51:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:51:34,150 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 17:51:34,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:51:34,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105383559] [2022-10-15 17:51:34,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105383559] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:51:34,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:51:34,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:51:34,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369742834] [2022-10-15 17:51:34,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:51:34,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:51:34,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:51:34,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:51:34,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:51:34,155 INFO L87 Difference]: Start difference. First operand 45630 states and 73506 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)