/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.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 04:22:21,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 04:22:21,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 04:22:21,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 04:22:21,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 04:22:21,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 04:22:21,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 04:22:21,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 04:22:21,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 04:22:21,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 04:22:21,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 04:22:21,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 04:22:21,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 04:22:21,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 04:22:21,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 04:22:21,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 04:22:21,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 04:22:21,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 04:22:21,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 04:22:21,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 04:22:21,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 04:22:21,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 04:22:21,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 04:22:21,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 04:22:21,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 04:22:21,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 04:22:21,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 04:22:21,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 04:22:21,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 04:22:21,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 04:22:21,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 04:22:21,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 04:22:21,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 04:22:21,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 04:22:21,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 04:22:21,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 04:22:21,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 04:22:21,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 04:22:21,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 04:22:21,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 04:22:21,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 04:22:21,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 04:22:21,257 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 04:22:21,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 04:22:21,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 04:22:21,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 04:22:21,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 04:22:21,260 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 04:22:21,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 04:22:21,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 04:22:21,261 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 04:22:21,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 04:22:21,262 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 04:22:21,262 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 04:22:21,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 04:22:21,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 04:22:21,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 04:22:21,263 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 04:22:21,263 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 04:22:21,263 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 04:22:21,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 04:22:21,264 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 04:22:21,264 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 04:22:21,264 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 04:22:21,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 04:22:21,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 04:22:21,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 04:22:21,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:22:21,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 04:22:21,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 04:22:21,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 04:22:21,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 04:22:21,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 04:22:21,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 04:22:21,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 04:22:21,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 04:22:21,707 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 04:22:21,708 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 04:22:21,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.06.cil-1.c [2022-10-16 04:22:21,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46cab315a/7b8f672cd6a9402e82c7261055d27b94/FLAGdc5978e02 [2022-10-16 04:22:22,542 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 04:22:22,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.06.cil-1.c [2022-10-16 04:22:22,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46cab315a/7b8f672cd6a9402e82c7261055d27b94/FLAGdc5978e02 [2022-10-16 04:22:22,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46cab315a/7b8f672cd6a9402e82c7261055d27b94 [2022-10-16 04:22:22,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 04:22:22,877 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 04:22:22,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 04:22:22,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 04:22:22,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 04:22:22,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:22:22" (1/1) ... [2022-10-16 04:22:22,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a20f973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:22, skipping insertion in model container [2022-10-16 04:22:22,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:22:22" (1/1) ... [2022-10-16 04:22:22,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 04:22:22,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 04:22:23,118 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.06.cil-1.c[671,684] [2022-10-16 04:22:23,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:22:23,301 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 04:22:23,321 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.06.cil-1.c[671,684] [2022-10-16 04:22:23,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:22:23,458 INFO L208 MainTranslator]: Completed translation [2022-10-16 04:22:23,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23 WrapperNode [2022-10-16 04:22:23,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 04:22:23,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 04:22:23,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 04:22:23,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 04:22:23,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (1/1) ... [2022-10-16 04:22:23,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (1/1) ... [2022-10-16 04:22:23,549 INFO L138 Inliner]: procedures = 40, calls = 50, calls flagged for inlining = 23, calls inlined = 23, statements flattened = 510 [2022-10-16 04:22:23,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 04:22:23,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 04:22:23,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 04:22:23,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 04:22:23,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (1/1) ... [2022-10-16 04:22:23,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (1/1) ... [2022-10-16 04:22:23,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (1/1) ... [2022-10-16 04:22:23,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (1/1) ... [2022-10-16 04:22:23,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (1/1) ... [2022-10-16 04:22:23,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (1/1) ... [2022-10-16 04:22:23,594 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (1/1) ... [2022-10-16 04:22:23,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (1/1) ... [2022-10-16 04:22:23,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 04:22:23,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 04:22:23,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 04:22:23,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 04:22:23,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (1/1) ... [2022-10-16 04:22:23,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:22:23,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:22:23,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 04:22:23,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 04:22:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 04:22:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-10-16 04:22:23,749 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-10-16 04:22:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-16 04:22:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-16 04:22:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-16 04:22:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-16 04:22:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-16 04:22:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-16 04:22:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-16 04:22:23,751 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-16 04:22:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-16 04:22:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-16 04:22:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 04:22:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-16 04:22:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-16 04:22:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 04:22:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 04:22:23,877 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 04:22:23,883 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 04:22:24,724 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 04:22:24,746 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 04:22:24,746 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-10-16 04:22:24,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:22:24 BoogieIcfgContainer [2022-10-16 04:22:24,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 04:22:24,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 04:22:24,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 04:22:24,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 04:22:24,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:22:22" (1/3) ... [2022-10-16 04:22:24,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9a6f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:22:24, skipping insertion in model container [2022-10-16 04:22:24,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:23" (2/3) ... [2022-10-16 04:22:24,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9a6f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:22:24, skipping insertion in model container [2022-10-16 04:22:24,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:22:24" (3/3) ... [2022-10-16 04:22:24,769 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.06.cil-1.c [2022-10-16 04:22:24,790 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 04:22:24,791 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 04:22:24,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 04:22:24,865 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;@120832e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 04:22:24,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 04:22:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 209 states have (on average 1.645933014354067) internal successors, (344), 214 states have internal predecessors, (344), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2022-10-16 04:22:24,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-16 04:22:24,888 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:24,889 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] [2022-10-16 04:22:24,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:24,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:24,897 INFO L85 PathProgramCache]: Analyzing trace with hash 786489471, now seen corresponding path program 1 times [2022-10-16 04:22:24,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:24,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026365008] [2022-10-16 04:22:24,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:24,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:25,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:25,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:22:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:25,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:22:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:25,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:22:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:25,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:25,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:25,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026365008] [2022-10-16 04:22:25,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026365008] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:25,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:25,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 04:22:25,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338850781] [2022-10-16 04:22:25,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:25,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 04:22:25,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:25,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 04:22:25,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 04:22:25,589 INFO L87 Difference]: Start difference. First operand has 241 states, 209 states have (on average 1.645933014354067) internal successors, (344), 214 states have internal predecessors, (344), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 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) [2022-10-16 04:22:26,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:26,841 INFO L93 Difference]: Finished difference Result 315 states and 496 transitions. [2022-10-16 04:22:26,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:22:26,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 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 97 [2022-10-16 04:22:26,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:26,861 INFO L225 Difference]: With dead ends: 315 [2022-10-16 04:22:26,861 INFO L226 Difference]: Without dead ends: 313 [2022-10-16 04:22:26,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:26,868 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 599 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:26,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 658 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 04:22:26,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-10-16 04:22:26,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 237. [2022-10-16 04:22:26,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 207 states have (on average 1.5507246376811594) internal successors, (321), 210 states have internal predecessors, (321), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-10-16 04:22:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 363 transitions. [2022-10-16 04:22:26,950 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 363 transitions. Word has length 97 [2022-10-16 04:22:26,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:26,951 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 363 transitions. [2022-10-16 04:22:26,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 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) [2022-10-16 04:22:26,951 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 363 transitions. [2022-10-16 04:22:26,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:22:26,957 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:26,958 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] [2022-10-16 04:22:26,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 04:22:26,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:26,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:26,959 INFO L85 PathProgramCache]: Analyzing trace with hash 737137767, now seen corresponding path program 1 times [2022-10-16 04:22:26,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:26,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621279074] [2022-10-16 04:22:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:26,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:22:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:22:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:22:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:22:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:27,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:27,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621279074] [2022-10-16 04:22:27,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621279074] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:27,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:27,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:22:27,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402645130] [2022-10-16 04:22:27,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:27,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:22:27,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:27,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:22:27,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:22:27,366 INFO L87 Difference]: Start difference. First operand 237 states and 363 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:29,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:29,247 INFO L93 Difference]: Finished difference Result 618 states and 973 transitions. [2022-10-16 04:22:29,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 04:22:29,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:22:29,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:29,254 INFO L225 Difference]: With dead ends: 618 [2022-10-16 04:22:29,255 INFO L226 Difference]: Without dead ends: 618 [2022-10-16 04:22:29,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:22:29,257 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 882 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:29,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 1051 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 04:22:29,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-10-16 04:22:29,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 462. [2022-10-16 04:22:29,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 410 states have (on average 1.5658536585365854) internal successors, (642), 414 states have internal predecessors, (642), 37 states have call successors, (37), 13 states have call predecessors, (37), 13 states have return successors, (38), 35 states have call predecessors, (38), 35 states have call successors, (38) [2022-10-16 04:22:29,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 717 transitions. [2022-10-16 04:22:29,306 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 717 transitions. Word has length 112 [2022-10-16 04:22:29,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:29,307 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 717 transitions. [2022-10-16 04:22:29,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:29,308 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 717 transitions. [2022-10-16 04:22:29,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:22:29,310 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:29,310 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] [2022-10-16 04:22:29,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 04:22:29,311 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:29,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:29,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1731390563, now seen corresponding path program 1 times [2022-10-16 04:22:29,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:29,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299389386] [2022-10-16 04:22:29,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:29,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:29,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:29,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:22:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:29,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:22:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:29,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:22:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:22:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:29,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:29,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299389386] [2022-10-16 04:22:29,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299389386] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:29,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:29,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:29,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422749174] [2022-10-16 04:22:29,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:29,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:29,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:29,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:29,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:29,707 INFO L87 Difference]: Start difference. First operand 462 states and 717 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:31,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:31,848 INFO L93 Difference]: Finished difference Result 926 states and 1464 transitions. [2022-10-16 04:22:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:31,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:22:31,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:31,856 INFO L225 Difference]: With dead ends: 926 [2022-10-16 04:22:31,856 INFO L226 Difference]: Without dead ends: 926 [2022-10-16 04:22:31,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:31,859 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 886 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:31,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 1819 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 04:22:31,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2022-10-16 04:22:31,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 672. [2022-10-16 04:22:31,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 598 states have (on average 1.560200668896321) internal successors, (933), 603 states have internal predecessors, (933), 52 states have call successors, (52), 19 states have call predecessors, (52), 20 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2022-10-16 04:22:31,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1040 transitions. [2022-10-16 04:22:31,909 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1040 transitions. Word has length 112 [2022-10-16 04:22:31,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:31,909 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 1040 transitions. [2022-10-16 04:22:31,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:31,910 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1040 transitions. [2022-10-16 04:22:31,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:22:31,913 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:31,913 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] [2022-10-16 04:22:31,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 04:22:31,914 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:31,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:31,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1212191515, now seen corresponding path program 1 times [2022-10-16 04:22:31,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:31,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407597239] [2022-10-16 04:22:31,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:31,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:32,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:32,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:22:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:32,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:22:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:32,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:22:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:32,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:22:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:32,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:32,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407597239] [2022-10-16 04:22:32,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407597239] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:32,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:32,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:32,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335683670] [2022-10-16 04:22:32,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:32,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:32,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:32,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:32,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:32,189 INFO L87 Difference]: Start difference. First operand 672 states and 1040 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:34,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:34,277 INFO L93 Difference]: Finished difference Result 1501 states and 2371 transitions. [2022-10-16 04:22:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:34,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:22:34,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:34,289 INFO L225 Difference]: With dead ends: 1501 [2022-10-16 04:22:34,289 INFO L226 Difference]: Without dead ends: 1501 [2022-10-16 04:22:34,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:34,291 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 952 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:34,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1260 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 04:22:34,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2022-10-16 04:22:34,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1093. [2022-10-16 04:22:34,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 975 states have (on average 1.554871794871795) internal successors, (1516), 982 states have internal predecessors, (1516), 82 states have call successors, (82), 31 states have call predecessors, (82), 34 states have return successors, (93), 83 states have call predecessors, (93), 80 states have call successors, (93) [2022-10-16 04:22:34,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1691 transitions. [2022-10-16 04:22:34,360 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1691 transitions. Word has length 112 [2022-10-16 04:22:34,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:34,360 INFO L495 AbstractCegarLoop]: Abstraction has 1093 states and 1691 transitions. [2022-10-16 04:22:34,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:34,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1691 transitions. [2022-10-16 04:22:34,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:22:34,369 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:34,370 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] [2022-10-16 04:22:34,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 04:22:34,371 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:34,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:34,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1463800867, now seen corresponding path program 1 times [2022-10-16 04:22:34,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:34,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054791338] [2022-10-16 04:22:34,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:34,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:22:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:22:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:22:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:22:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:34,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:34,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:34,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054791338] [2022-10-16 04:22:34,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054791338] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:34,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:34,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:34,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789314703] [2022-10-16 04:22:34,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:34,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:34,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:34,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:34,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:34,670 INFO L87 Difference]: Start difference. First operand 1093 states and 1691 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:36,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:36,835 INFO L93 Difference]: Finished difference Result 2590 states and 4075 transitions. [2022-10-16 04:22:36,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:36,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:22:36,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:36,859 INFO L225 Difference]: With dead ends: 2590 [2022-10-16 04:22:36,859 INFO L226 Difference]: Without dead ends: 2590 [2022-10-16 04:22:36,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:36,861 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 880 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:36,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 1803 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 04:22:36,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states. [2022-10-16 04:22:36,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 1941. [2022-10-16 04:22:36,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1941 states, 1735 states have (on average 1.5515850144092218) internal successors, (2692), 1746 states have internal predecessors, (2692), 142 states have call successors, (142), 55 states have call predecessors, (142), 62 states have return successors, (175), 147 states have call predecessors, (175), 140 states have call successors, (175) [2022-10-16 04:22:36,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 3009 transitions. [2022-10-16 04:22:36,964 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 3009 transitions. Word has length 112 [2022-10-16 04:22:36,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:36,964 INFO L495 AbstractCegarLoop]: Abstraction has 1941 states and 3009 transitions. [2022-10-16 04:22:36,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:36,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 3009 transitions. [2022-10-16 04:22:36,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:22:36,968 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:36,968 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] [2022-10-16 04:22:36,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 04:22:36,969 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:36,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:36,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1435300577, now seen corresponding path program 1 times [2022-10-16 04:22:36,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:36,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099011153] [2022-10-16 04:22:36,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:36,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:22:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:22:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:22:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:22:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:37,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:37,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099011153] [2022-10-16 04:22:37,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099011153] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:37,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:37,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:37,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960235777] [2022-10-16 04:22:37,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:37,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:37,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:37,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:37,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:37,183 INFO L87 Difference]: Start difference. First operand 1941 states and 3009 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:39,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:39,342 INFO L93 Difference]: Finished difference Result 4772 states and 7505 transitions. [2022-10-16 04:22:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:39,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:22:39,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:39,378 INFO L225 Difference]: With dead ends: 4772 [2022-10-16 04:22:39,379 INFO L226 Difference]: Without dead ends: 4772 [2022-10-16 04:22:39,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:39,383 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 879 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 1828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:39,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 1798 Invalid, 1828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 04:22:39,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4772 states. [2022-10-16 04:22:39,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4772 to 3642. [2022-10-16 04:22:39,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3260 states have (on average 1.549079754601227) internal successors, (5050), 3279 states have internal predecessors, (5050), 262 states have call successors, (262), 103 states have call predecessors, (262), 118 states have return successors, (357), 275 states have call predecessors, (357), 260 states have call successors, (357) [2022-10-16 04:22:39,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 5669 transitions. [2022-10-16 04:22:39,584 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 5669 transitions. Word has length 112 [2022-10-16 04:22:39,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:39,586 INFO L495 AbstractCegarLoop]: Abstraction has 3642 states and 5669 transitions. [2022-10-16 04:22:39,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:39,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 5669 transitions. [2022-10-16 04:22:39,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:22:39,593 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:39,593 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] [2022-10-16 04:22:39,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 04:22:39,594 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:39,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:39,594 INFO L85 PathProgramCache]: Analyzing trace with hash -505281437, now seen corresponding path program 1 times [2022-10-16 04:22:39,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:39,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906115987] [2022-10-16 04:22:39,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:39,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:39,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:39,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:22:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:39,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:22:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:39,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:22:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:39,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:22:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:39,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:39,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906115987] [2022-10-16 04:22:39,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906115987] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:39,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:39,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:39,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489008821] [2022-10-16 04:22:39,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:39,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:39,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:39,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:39,865 INFO L87 Difference]: Start difference. First operand 3642 states and 5669 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:41,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:41,909 INFO L93 Difference]: Finished difference Result 9130 states and 14399 transitions. [2022-10-16 04:22:41,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:41,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:22:41,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:42,011 INFO L225 Difference]: With dead ends: 9130 [2022-10-16 04:22:42,012 INFO L226 Difference]: Without dead ends: 9130 [2022-10-16 04:22:42,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:42,016 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 878 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:42,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 1793 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 04:22:42,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9130 states. [2022-10-16 04:22:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9130 to 7059. [2022-10-16 04:22:42,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7059 states, 6325 states have (on average 1.547509881422925) internal successors, (9788), 6360 states have internal predecessors, (9788), 502 states have call successors, (502), 199 states have call predecessors, (502), 230 states have return successors, (775), 531 states have call predecessors, (775), 500 states have call successors, (775) [2022-10-16 04:22:42,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7059 states to 7059 states and 11065 transitions. [2022-10-16 04:22:42,303 INFO L78 Accepts]: Start accepts. Automaton has 7059 states and 11065 transitions. Word has length 112 [2022-10-16 04:22:42,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:42,303 INFO L495 AbstractCegarLoop]: Abstraction has 7059 states and 11065 transitions. [2022-10-16 04:22:42,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:42,304 INFO L276 IsEmpty]: Start isEmpty. Operand 7059 states and 11065 transitions. [2022-10-16 04:22:42,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:22:42,312 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:42,312 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] [2022-10-16 04:22:42,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 04:22:42,313 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:42,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:42,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1371781793, now seen corresponding path program 1 times [2022-10-16 04:22:42,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:42,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341922015] [2022-10-16 04:22:42,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:42,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:42,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:22:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:42,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:22:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:42,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:22:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:22:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:42,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:42,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:42,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341922015] [2022-10-16 04:22:42,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341922015] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:42,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:42,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:42,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053829895] [2022-10-16 04:22:42,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:42,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:42,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:42,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:42,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:42,557 INFO L87 Difference]: Start difference. First operand 7059 states and 11065 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:44,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:44,948 INFO L93 Difference]: Finished difference Result 20808 states and 32787 transitions. [2022-10-16 04:22:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:44,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:22:44,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:45,058 INFO L225 Difference]: With dead ends: 20808 [2022-10-16 04:22:45,058 INFO L226 Difference]: Without dead ends: 20808 [2022-10-16 04:22:45,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:22:45,060 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 1129 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:45,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 1778 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 04:22:45,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20808 states. [2022-10-16 04:22:45,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20808 to 13828. [2022-10-16 04:22:45,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13828 states, 12422 states have (on average 1.5493479310900016) internal successors, (19246), 12489 states have internal predecessors, (19246), 950 states have call successors, (950), 391 states have call predecessors, (950), 454 states have return successors, (1741), 1011 states have call predecessors, (1741), 948 states have call successors, (1741) [2022-10-16 04:22:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13828 states to 13828 states and 21937 transitions. [2022-10-16 04:22:45,763 INFO L78 Accepts]: Start accepts. Automaton has 13828 states and 21937 transitions. Word has length 112 [2022-10-16 04:22:45,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:45,763 INFO L495 AbstractCegarLoop]: Abstraction has 13828 states and 21937 transitions. [2022-10-16 04:22:45,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:45,765 INFO L276 IsEmpty]: Start isEmpty. Operand 13828 states and 21937 transitions. [2022-10-16 04:22:45,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:22:45,779 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:45,780 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] [2022-10-16 04:22:45,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 04:22:45,780 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:45,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:45,782 INFO L85 PathProgramCache]: Analyzing trace with hash 601048227, now seen corresponding path program 1 times [2022-10-16 04:22:45,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:45,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159090833] [2022-10-16 04:22:45,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:45,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:45,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:22:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:45,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:22:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:45,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:22:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:45,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:22:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:45,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:45,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:45,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159090833] [2022-10-16 04:22:45,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159090833] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:45,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:45,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:45,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217165933] [2022-10-16 04:22:45,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:45,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:45,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:45,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:45,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:45,999 INFO L87 Difference]: Start difference. First operand 13828 states and 21937 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:48,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:48,683 INFO L93 Difference]: Finished difference Result 40198 states and 64001 transitions. [2022-10-16 04:22:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:48,685 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:22:48,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:48,818 INFO L225 Difference]: With dead ends: 40198 [2022-10-16 04:22:48,818 INFO L226 Difference]: Without dead ends: 40198 [2022-10-16 04:22:48,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:22:48,825 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 928 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:48,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 1861 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2001 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-16 04:22:48,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40198 states. [2022-10-16 04:22:49,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40198 to 26693. [2022-10-16 04:22:49,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26693 states, 23975 states have (on average 1.5449426485922837) internal successors, (37040), 24106 states have internal predecessors, (37040), 1814 states have call successors, (1814), 775 states have call predecessors, (1814), 902 states have return successors, (4127), 1939 states have call predecessors, (4127), 1812 states have call successors, (4127) [2022-10-16 04:22:50,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26693 states to 26693 states and 42981 transitions. [2022-10-16 04:22:50,009 INFO L78 Accepts]: Start accepts. Automaton has 26693 states and 42981 transitions. Word has length 112 [2022-10-16 04:22:50,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:50,010 INFO L495 AbstractCegarLoop]: Abstraction has 26693 states and 42981 transitions. [2022-10-16 04:22:50,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:50,011 INFO L276 IsEmpty]: Start isEmpty. Operand 26693 states and 42981 transitions. [2022-10-16 04:22:50,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:22:50,038 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:50,038 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] [2022-10-16 04:22:50,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 04:22:50,039 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:50,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:50,040 INFO L85 PathProgramCache]: Analyzing trace with hash -393645471, now seen corresponding path program 1 times [2022-10-16 04:22:50,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:50,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536277242] [2022-10-16 04:22:50,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:50,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:50,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:50,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:22:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:50,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:22:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:50,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:22:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:50,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:22:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:50,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:50,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536277242] [2022-10-16 04:22:50,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536277242] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:50,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:50,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:50,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344767711] [2022-10-16 04:22:50,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:50,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:50,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:50,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:50,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:50,460 INFO L87 Difference]: Start difference. First operand 26693 states and 42981 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:53,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:53,086 INFO L93 Difference]: Finished difference Result 76548 states and 123667 transitions. [2022-10-16 04:22:53,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:53,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:22:53,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:53,577 INFO L225 Difference]: With dead ends: 76548 [2022-10-16 04:22:53,578 INFO L226 Difference]: Without dead ends: 76548 [2022-10-16 04:22:53,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:22:53,579 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 1049 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 1715 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:53,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 1768 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1715 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 04:22:53,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76548 states. [2022-10-16 04:22:55,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76548 to 52998. [2022-10-16 04:22:55,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52998 states, 47720 states have (on average 1.547401508801341) internal successors, (73842), 47979 states have internal predecessors, (73842), 3478 states have call successors, (3478), 1543 states have call predecessors, (3478), 1798 states have return successors, (10293), 3731 states have call predecessors, (10293), 3476 states have call successors, (10293) [2022-10-16 04:22:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52998 states to 52998 states and 87613 transitions. [2022-10-16 04:22:55,997 INFO L78 Accepts]: Start accepts. Automaton has 52998 states and 87613 transitions. Word has length 112 [2022-10-16 04:22:55,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:55,998 INFO L495 AbstractCegarLoop]: Abstraction has 52998 states and 87613 transitions. [2022-10-16 04:22:55,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:55,998 INFO L276 IsEmpty]: Start isEmpty. Operand 52998 states and 87613 transitions. [2022-10-16 04:22:56,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:22:56,086 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:56,086 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] [2022-10-16 04:22:56,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 04:22:56,087 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:56,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:56,090 INFO L85 PathProgramCache]: Analyzing trace with hash -979921693, now seen corresponding path program 1 times [2022-10-16 04:22:56,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:56,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363727743] [2022-10-16 04:22:56,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:56,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:22:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:22:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:22:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:22:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:22:56,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:56,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363727743] [2022-10-16 04:22:56,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363727743] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:56,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:56,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:56,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286371042] [2022-10-16 04:22:56,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:56,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:56,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:56,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:56,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:56,462 INFO L87 Difference]: Start difference. First operand 52998 states and 87613 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:22:59,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:59,660 INFO L93 Difference]: Finished difference Result 148098 states and 245841 transitions. [2022-10-16 04:22:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:59,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:22:59,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:23:00,567 INFO L225 Difference]: With dead ends: 148098 [2022-10-16 04:23:00,568 INFO L226 Difference]: Without dead ends: 148098 [2022-10-16 04:23:00,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:23:00,569 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 1065 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 04:23:00,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 1231 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 04:23:00,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148098 states. [2022-10-16 04:23:03,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148098 to 105479. [2022-10-16 04:23:03,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105479 states, 95209 states have (on average 1.549979518742976) internal successors, (147572), 95724 states have internal predecessors, (147572), 6678 states have call successors, (6678), 3079 states have call predecessors, (6678), 3590 states have return successors, (26871), 7187 states have call predecessors, (26871), 6676 states have call successors, (26871) [2022-10-16 04:23:05,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105479 states to 105479 states and 181121 transitions. [2022-10-16 04:23:05,110 INFO L78 Accepts]: Start accepts. Automaton has 105479 states and 181121 transitions. Word has length 112 [2022-10-16 04:23:05,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:23:05,110 INFO L495 AbstractCegarLoop]: Abstraction has 105479 states and 181121 transitions. [2022-10-16 04:23:05,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:23:05,111 INFO L276 IsEmpty]: Start isEmpty. Operand 105479 states and 181121 transitions. [2022-10-16 04:23:05,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:23:05,277 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:23:05,277 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] [2022-10-16 04:23:05,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 04:23:05,278 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:23:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:23:05,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1356470817, now seen corresponding path program 1 times [2022-10-16 04:23:05,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:23:05,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681772847] [2022-10-16 04:23:05,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:23:05,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:23:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:23:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:05,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:23:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:05,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:23:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:05,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:23:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:05,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:23:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:23:05,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:23:05,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681772847] [2022-10-16 04:23:05,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681772847] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:23:05,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:23:05,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:23:05,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653508646] [2022-10-16 04:23:05,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:23:05,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:23:05,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:23:05,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:23:05,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:23:05,582 INFO L87 Difference]: Start difference. First operand 105479 states and 181121 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:23:10,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:23:10,174 INFO L93 Difference]: Finished difference Result 278910 states and 484623 transitions. [2022-10-16 04:23:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:23:10,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:23:10,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:23:11,833 INFO L225 Difference]: With dead ends: 278910 [2022-10-16 04:23:11,833 INFO L226 Difference]: Without dead ends: 278910 [2022-10-16 04:23:11,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:23:11,834 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 929 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:23:11,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 1752 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 04:23:11,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278910 states. [2022-10-16 04:23:17,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278910 to 210697. [2022-10-16 04:23:17,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210697 states, 190699 states have (on average 1.5538204185653832) internal successors, (296312), 191726 states have internal predecessors, (296312), 12822 states have call successors, (12822), 6151 states have call predecessors, (12822), 7174 states have return successors, (72893), 13843 states have call predecessors, (72893), 12820 states have call successors, (72893) [2022-10-16 04:23:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210697 states to 210697 states and 382027 transitions. [2022-10-16 04:23:20,817 INFO L78 Accepts]: Start accepts. Automaton has 210697 states and 382027 transitions. Word has length 112 [2022-10-16 04:23:20,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:23:20,818 INFO L495 AbstractCegarLoop]: Abstraction has 210697 states and 382027 transitions. [2022-10-16 04:23:20,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:23:20,827 INFO L276 IsEmpty]: Start isEmpty. Operand 210697 states and 382027 transitions. [2022-10-16 04:23:21,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:23:21,047 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:23:21,047 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] [2022-10-16 04:23:21,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 04:23:21,048 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:23:21,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:23:21,048 INFO L85 PathProgramCache]: Analyzing trace with hash -522660129, now seen corresponding path program 1 times [2022-10-16 04:23:21,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:23:21,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543872064] [2022-10-16 04:23:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:23:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:23:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:21,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:23:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:21,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:23:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:21,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:23:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:22,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:23:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:22,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:23:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:23:22,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:23:22,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543872064] [2022-10-16 04:23:22,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543872064] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:23:22,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:23:22,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:23:22,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273787699] [2022-10-16 04:23:22,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:23:22,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:23:22,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:23:22,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:23:22,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:23:22,023 INFO L87 Difference]: Start difference. First operand 210697 states and 382027 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:23:28,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:23:28,979 INFO L93 Difference]: Finished difference Result 539004 states and 997981 transitions. [2022-10-16 04:23:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:23:28,980 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:23:28,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:23:32,787 INFO L225 Difference]: With dead ends: 539004 [2022-10-16 04:23:32,788 INFO L226 Difference]: Without dead ends: 539004 [2022-10-16 04:23:32,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:23:32,789 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 874 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 04:23:32,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 1760 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 04:23:33,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539004 states. [2022-10-16 04:23:47,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539004 to 420618. [2022-10-16 04:23:48,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420618 states, 381676 states have (on average 1.557074586822331) internal successors, (594298), 383727 states have internal predecessors, (594298), 24598 states have call successors, (24598), 12295 states have call predecessors, (24598), 14342 states have return successors, (203791), 26643 states have call predecessors, (203791), 24596 states have call successors, (203791) [2022-10-16 04:23:55,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420618 states to 420618 states and 822687 transitions. [2022-10-16 04:23:55,630 INFO L78 Accepts]: Start accepts. Automaton has 420618 states and 822687 transitions. Word has length 112 [2022-10-16 04:23:55,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:23:55,634 INFO L495 AbstractCegarLoop]: Abstraction has 420618 states and 822687 transitions. [2022-10-16 04:23:55,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:23:55,635 INFO L276 IsEmpty]: Start isEmpty. Operand 420618 states and 822687 transitions. [2022-10-16 04:23:56,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 04:23:56,261 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:23:56,261 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] [2022-10-16 04:23:56,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 04:23:56,263 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:23:56,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:23:56,264 INFO L85 PathProgramCache]: Analyzing trace with hash 802196065, now seen corresponding path program 1 times [2022-10-16 04:23:56,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:23:56,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488399889] [2022-10-16 04:23:56,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:23:56,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:23:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:56,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:23:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:56,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:23:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:56,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:23:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:56,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:23:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:56,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:23:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:56,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 04:23:56,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:23:56,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488399889] [2022-10-16 04:23:56,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488399889] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:23:56,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:23:56,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:23:56,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916351878] [2022-10-16 04:23:56,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:23:56,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:23:56,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:23:56,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:23:56,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:23:56,445 INFO L87 Difference]: Start difference. First operand 420618 states and 822687 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:24:07,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:24:07,415 INFO L93 Difference]: Finished difference Result 778917 states and 1415399 transitions. [2022-10-16 04:24:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 04:24:07,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2022-10-16 04:24:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:24:13,582 INFO L225 Difference]: With dead ends: 778917 [2022-10-16 04:24:13,584 INFO L226 Difference]: Without dead ends: 778917 [2022-10-16 04:24:13,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-10-16 04:24:13,585 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 1127 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-10-16 04:24:13,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 1465 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-10-16 04:24:14,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778917 states. [2022-10-16 04:24:42,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778917 to 626355. [2022-10-16 04:24:43,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626355 states, 567423 states have (on average 1.5467155896042282) internal successors, (877642), 571523 states have internal predecessors, (877642), 37414 states have call successors, (37414), 18445 states have call predecessors, (37414), 21516 states have return successors, (275657), 38434 states have call predecessors, (275657), 37412 states have call successors, (275657) [2022-10-16 04:24:53,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626355 states to 626355 states and 1190713 transitions. [2022-10-16 04:24:53,205 INFO L78 Accepts]: Start accepts. Automaton has 626355 states and 1190713 transitions. Word has length 112 [2022-10-16 04:24:53,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:24:53,207 INFO L495 AbstractCegarLoop]: Abstraction has 626355 states and 1190713 transitions. [2022-10-16 04:24:53,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 04:24:53,207 INFO L276 IsEmpty]: Start isEmpty. Operand 626355 states and 1190713 transitions. [2022-10-16 04:24:56,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 04:24:56,367 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:24:56,368 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:24:56,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 04:24:56,368 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:24:56,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:24:56,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1504039896, now seen corresponding path program 1 times [2022-10-16 04:24:56,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:24:56,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814944559] [2022-10-16 04:24:56,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:24:56,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:24:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:56,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:24:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:56,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 04:24:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 04:24:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 04:24:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:56,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 04:24:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 04:24:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:56,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:24:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:56,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 04:24:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 04:24:56,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:24:56,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814944559] [2022-10-16 04:24:56,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814944559] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:24:56,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052254682] [2022-10-16 04:24:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:24:56,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:24:56,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:24:56,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:24:56,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 04:24:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:57,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:24:57,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:24:57,420 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-16 04:24:57,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:24:57,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052254682] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:24:57,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:24:57,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:24:57,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582931899] [2022-10-16 04:24:57,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:24:57,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:24:57,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:24:57,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:24:57,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:24:57,428 INFO L87 Difference]: Start difference. First operand 626355 states and 1190713 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)