/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.04.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 04:22:06,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 04:22:06,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 04:22:07,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 04:22:07,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 04:22:07,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 04:22:07,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 04:22:07,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 04:22:07,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 04:22:07,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 04:22:07,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 04:22:07,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 04:22:07,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 04:22:07,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 04:22:07,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 04:22:07,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 04:22:07,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 04:22:07,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 04:22:07,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 04:22:07,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 04:22:07,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 04:22:07,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 04:22:07,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 04:22:07,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 04:22:07,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 04:22:07,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 04:22:07,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 04:22:07,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 04:22:07,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 04:22:07,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 04:22:07,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 04:22:07,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 04:22:07,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 04:22:07,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 04:22:07,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 04:22:07,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 04:22:07,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 04:22:07,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 04:22:07,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 04:22:07,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 04:22:07,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 04:22:07,111 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 04:22:07,165 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 04:22:07,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 04:22:07,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 04:22:07,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 04:22:07,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 04:22:07,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 04:22:07,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 04:22:07,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 04:22:07,171 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 04:22:07,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 04:22:07,172 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 04:22:07,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 04:22:07,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 04:22:07,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 04:22:07,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 04:22:07,174 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 04:22:07,174 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 04:22:07,174 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 04:22:07,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 04:22:07,174 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 04:22:07,175 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 04:22:07,175 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 04:22:07,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 04:22:07,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 04:22:07,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 04:22:07,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:22:07,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 04:22:07,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 04:22:07,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 04:22:07,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 04:22:07,177 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 04:22:07,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 04:22:07,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 04:22:07,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 04:22:07,603 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 04:22:07,604 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 04:22:07,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.04.cil-2.c [2022-10-16 04:22:07,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5626523c3/d213f3639b594527993feedbe277f7ad/FLAG61674ee59 [2022-10-16 04:22:08,354 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 04:22:08,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.04.cil-2.c [2022-10-16 04:22:08,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5626523c3/d213f3639b594527993feedbe277f7ad/FLAG61674ee59 [2022-10-16 04:22:08,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5626523c3/d213f3639b594527993feedbe277f7ad [2022-10-16 04:22:08,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 04:22:08,705 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 04:22:08,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 04:22:08,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 04:22:08,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 04:22:08,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:22:08" (1/1) ... [2022-10-16 04:22:08,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263cfcf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:08, skipping insertion in model container [2022-10-16 04:22:08,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:22:08" (1/1) ... [2022-10-16 04:22:08,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 04:22:08,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 04:22:08,937 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.04.cil-2.c[671,684] [2022-10-16 04:22:09,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:22:09,036 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 04:22:09,050 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.04.cil-2.c[671,684] [2022-10-16 04:22:09,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 04:22:09,147 INFO L208 MainTranslator]: Completed translation [2022-10-16 04:22:09,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09 WrapperNode [2022-10-16 04:22:09,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 04:22:09,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 04:22:09,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 04:22:09,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 04:22:09,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (1/1) ... [2022-10-16 04:22:09,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (1/1) ... [2022-10-16 04:22:09,211 INFO L138 Inliner]: procedures = 36, calls = 44, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 394 [2022-10-16 04:22:09,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 04:22:09,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 04:22:09,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 04:22:09,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 04:22:09,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (1/1) ... [2022-10-16 04:22:09,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (1/1) ... [2022-10-16 04:22:09,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (1/1) ... [2022-10-16 04:22:09,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (1/1) ... [2022-10-16 04:22:09,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (1/1) ... [2022-10-16 04:22:09,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (1/1) ... [2022-10-16 04:22:09,251 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (1/1) ... [2022-10-16 04:22:09,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (1/1) ... [2022-10-16 04:22:09,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 04:22:09,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 04:22:09,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 04:22:09,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 04:22:09,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (1/1) ... [2022-10-16 04:22:09,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 04:22:09,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:22:09,308 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 04:22:09,316 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 04:22:09,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 04:22:09,371 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-10-16 04:22:09,371 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-10-16 04:22:09,371 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-16 04:22:09,371 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-16 04:22:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-16 04:22:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-16 04:22:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-16 04:22:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-16 04:22:09,373 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-16 04:22:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-16 04:22:09,374 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-16 04:22:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-16 04:22:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 04:22:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-16 04:22:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-16 04:22:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 04:22:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 04:22:09,464 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 04:22:09,483 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 04:22:10,319 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 04:22:10,331 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 04:22:10,332 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-10-16 04:22:10,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:22:10 BoogieIcfgContainer [2022-10-16 04:22:10,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 04:22:10,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 04:22:10,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 04:22:10,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 04:22:10,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:22:08" (1/3) ... [2022-10-16 04:22:10,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7af331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:22:10, skipping insertion in model container [2022-10-16 04:22:10,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:22:09" (2/3) ... [2022-10-16 04:22:10,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7af331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:22:10, skipping insertion in model container [2022-10-16 04:22:10,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:22:10" (3/3) ... [2022-10-16 04:22:10,346 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.04.cil-2.c [2022-10-16 04:22:10,369 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 04:22:10,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 04:22:10,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 04:22:10,443 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;@12d79e94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 04:22:10,444 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 04:22:10,450 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 161 states have (on average 1.6273291925465838) internal successors, (262), 166 states have internal predecessors, (262), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-10-16 04:22:10,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 04:22:10,463 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:10,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:22:10,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:10,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:10,471 INFO L85 PathProgramCache]: Analyzing trace with hash -738614870, now seen corresponding path program 1 times [2022-10-16 04:22:10,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:10,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183090026] [2022-10-16 04:22:10,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:10,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:10,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:10,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:10,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:11,006 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 04:22:11,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:11,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183090026] [2022-10-16 04:22:11,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183090026] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:11,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:11,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 04:22:11,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472035515] [2022-10-16 04:22:11,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:11,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 04:22:11,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:11,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 04:22:11,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 04:22:11,056 INFO L87 Difference]: Start difference. First operand has 191 states, 161 states have (on average 1.6273291925465838) internal successors, (262), 166 states have internal predecessors, (262), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (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 04:22:11,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:11,866 INFO L93 Difference]: Finished difference Result 243 states and 376 transitions. [2022-10-16 04:22:11,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 04:22:11,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (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 75 [2022-10-16 04:22:11,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:11,885 INFO L225 Difference]: With dead ends: 243 [2022-10-16 04:22:11,885 INFO L226 Difference]: Without dead ends: 241 [2022-10-16 04:22:11,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:11,892 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 445 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:11,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 514 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 04:22:11,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-10-16 04:22:11,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 187. [2022-10-16 04:22:11,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 159 states have (on average 1.528301886792453) internal successors, (243), 162 states have internal predecessors, (243), 20 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-10-16 04:22:11,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-10-16 04:22:11,960 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 75 [2022-10-16 04:22:11,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:11,960 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-10-16 04:22:11,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (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 04:22:11,961 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-10-16 04:22:11,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:22:11,966 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:11,966 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] [2022-10-16 04:22:11,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 04:22:11,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:11,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:11,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1901597636, now seen corresponding path program 1 times [2022-10-16 04:22:11,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:11,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680571151] [2022-10-16 04:22:11,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:11,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:12,282 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 04:22:12,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:12,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680571151] [2022-10-16 04:22:12,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680571151] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:12,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:12,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:22:12,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764616394] [2022-10-16 04:22:12,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:12,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:22:12,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:12,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:22:12,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:22:12,288 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 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 04:22:13,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:13,495 INFO L93 Difference]: Finished difference Result 472 states and 729 transitions. [2022-10-16 04:22:13,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 04:22:13,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 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 90 [2022-10-16 04:22:13,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:13,505 INFO L225 Difference]: With dead ends: 472 [2022-10-16 04:22:13,505 INFO L226 Difference]: Without dead ends: 472 [2022-10-16 04:22:13,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-16 04:22:13,508 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 652 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:13,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 825 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 04:22:13,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-10-16 04:22:13,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 360. [2022-10-16 04:22:13,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 312 states have (on average 1.544871794871795) internal successors, (482), 316 states have internal predecessors, (482), 33 states have call successors, (33), 13 states have call predecessors, (33), 13 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2022-10-16 04:22:13,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 549 transitions. [2022-10-16 04:22:13,548 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 549 transitions. Word has length 90 [2022-10-16 04:22:13,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:13,549 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 549 transitions. [2022-10-16 04:22:13,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 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 04:22:13,549 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 549 transitions. [2022-10-16 04:22:13,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:22:13,552 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:13,552 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] [2022-10-16 04:22:13,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 04:22:13,553 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:13,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:13,554 INFO L85 PathProgramCache]: Analyzing trace with hash 338665016, now seen corresponding path program 1 times [2022-10-16 04:22:13,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:13,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307050607] [2022-10-16 04:22:13,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:13,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:13,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:13,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:13,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:13,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:13,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:13,855 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 04:22:13,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:13,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307050607] [2022-10-16 04:22:13,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307050607] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:13,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:13,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:13,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294803611] [2022-10-16 04:22:13,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:13,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:13,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:13,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:13,861 INFO L87 Difference]: Start difference. First operand 360 states and 549 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:15,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:15,205 INFO L93 Difference]: Finished difference Result 702 states and 1088 transitions. [2022-10-16 04:22:15,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:15,206 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 90 [2022-10-16 04:22:15,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:15,212 INFO L225 Difference]: With dead ends: 702 [2022-10-16 04:22:15,212 INFO L226 Difference]: Without dead ends: 702 [2022-10-16 04:22:15,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:15,215 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 648 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:15,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1419 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:22:15,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-10-16 04:22:15,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 522. [2022-10-16 04:22:15,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 454 states have (on average 1.539647577092511) internal successors, (699), 459 states have internal predecessors, (699), 46 states have call successors, (46), 19 states have call predecessors, (46), 20 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2022-10-16 04:22:15,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 794 transitions. [2022-10-16 04:22:15,279 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 794 transitions. Word has length 90 [2022-10-16 04:22:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:15,279 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 794 transitions. [2022-10-16 04:22:15,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 794 transitions. [2022-10-16 04:22:15,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:22:15,283 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:15,284 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] [2022-10-16 04:22:15,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 04:22:15,284 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:15,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:15,285 INFO L85 PathProgramCache]: Analyzing trace with hash 2072769466, now seen corresponding path program 1 times [2022-10-16 04:22:15,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:15,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7563326] [2022-10-16 04:22:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:15,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:15,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:15,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:15,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:15,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:15,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:15,528 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 04:22:15,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:15,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7563326] [2022-10-16 04:22:15,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7563326] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:15,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:15,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:15,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570566956] [2022-10-16 04:22:15,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:15,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:15,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:15,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:15,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:15,531 INFO L87 Difference]: Start difference. First operand 522 states and 794 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:16,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:16,802 INFO L93 Difference]: Finished difference Result 1133 states and 1755 transitions. [2022-10-16 04:22:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:16,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 90 [2022-10-16 04:22:16,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:16,812 INFO L225 Difference]: With dead ends: 1133 [2022-10-16 04:22:16,812 INFO L226 Difference]: Without dead ends: 1133 [2022-10-16 04:22:16,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:16,814 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 695 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:16,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 990 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 04:22:16,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2022-10-16 04:22:16,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 847. [2022-10-16 04:22:16,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 739 states have (on average 1.5345060893098783) internal successors, (1134), 746 states have internal predecessors, (1134), 72 states have call successors, (72), 31 states have call predecessors, (72), 34 states have return successors, (83), 73 states have call predecessors, (83), 70 states have call successors, (83) [2022-10-16 04:22:16,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1289 transitions. [2022-10-16 04:22:16,862 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1289 transitions. Word has length 90 [2022-10-16 04:22:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:16,862 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1289 transitions. [2022-10-16 04:22:16,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1289 transitions. [2022-10-16 04:22:16,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:22:16,866 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:16,866 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] [2022-10-16 04:22:16,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 04:22:16,867 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:16,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:16,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1334974984, now seen corresponding path program 1 times [2022-10-16 04:22:16,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:16,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952020301] [2022-10-16 04:22:16,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:16,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:16,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:16,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:17,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:17,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:17,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:17,048 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 04:22:17,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:17,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952020301] [2022-10-16 04:22:17,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952020301] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:17,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:17,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:17,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852486958] [2022-10-16 04:22:17,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:17,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:17,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:17,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:17,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:17,052 INFO L87 Difference]: Start difference. First operand 847 states and 1289 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:18,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:18,413 INFO L93 Difference]: Finished difference Result 1953 states and 3017 transitions. [2022-10-16 04:22:18,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:18,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 90 [2022-10-16 04:22:18,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:18,428 INFO L225 Difference]: With dead ends: 1953 [2022-10-16 04:22:18,428 INFO L226 Difference]: Without dead ends: 1953 [2022-10-16 04:22:18,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:18,430 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 640 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:18,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1409 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:22:18,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2022-10-16 04:22:18,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1498. [2022-10-16 04:22:18,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1310 states have (on average 1.5297709923664122) internal successors, (2004), 1321 states have internal predecessors, (2004), 124 states have call successors, (124), 55 states have call predecessors, (124), 62 states have return successors, (157), 129 states have call predecessors, (157), 122 states have call successors, (157) [2022-10-16 04:22:18,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2285 transitions. [2022-10-16 04:22:18,501 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2285 transitions. Word has length 90 [2022-10-16 04:22:18,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:18,502 INFO L495 AbstractCegarLoop]: Abstraction has 1498 states and 2285 transitions. [2022-10-16 04:22:18,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:18,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2285 transitions. [2022-10-16 04:22:18,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:22:18,504 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:18,505 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] [2022-10-16 04:22:18,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 04:22:18,505 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:18,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:18,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1048949754, now seen corresponding path program 1 times [2022-10-16 04:22:18,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:18,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490296063] [2022-10-16 04:22:18,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:18,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:18,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:18,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:18,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:18,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:18,705 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 04:22:18,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:18,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490296063] [2022-10-16 04:22:18,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490296063] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:18,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:18,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:18,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297574816] [2022-10-16 04:22:18,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:18,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:18,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:18,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:18,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:18,708 INFO L87 Difference]: Start difference. First operand 1498 states and 2285 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:20,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:20,045 INFO L93 Difference]: Finished difference Result 3591 states and 5551 transitions. [2022-10-16 04:22:20,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 04:22:20,046 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 90 [2022-10-16 04:22:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:20,068 INFO L225 Difference]: With dead ends: 3591 [2022-10-16 04:22:20,069 INFO L226 Difference]: Without dead ends: 3591 [2022-10-16 04:22:20,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 04:22:20,070 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 636 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:20,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1405 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:22:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3591 states. [2022-10-16 04:22:20,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3591 to 2805. [2022-10-16 04:22:20,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2457 states have (on average 1.5262515262515262) internal successors, (3750), 2476 states have internal predecessors, (3750), 228 states have call successors, (228), 103 states have call predecessors, (228), 118 states have return successors, (323), 241 states have call predecessors, (323), 226 states have call successors, (323) [2022-10-16 04:22:20,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 4301 transitions. [2022-10-16 04:22:20,184 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 4301 transitions. Word has length 90 [2022-10-16 04:22:20,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:20,184 INFO L495 AbstractCegarLoop]: Abstraction has 2805 states and 4301 transitions. [2022-10-16 04:22:20,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:20,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 4301 transitions. [2022-10-16 04:22:20,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:22:20,188 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:20,188 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] [2022-10-16 04:22:20,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 04:22:20,189 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:20,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:20,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1125850552, now seen corresponding path program 1 times [2022-10-16 04:22:20,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:20,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319100733] [2022-10-16 04:22:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:20,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:20,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:20,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:20,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:20,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:20,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:20,358 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 04:22:20,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:20,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319100733] [2022-10-16 04:22:20,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319100733] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:20,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:20,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:20,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38682989] [2022-10-16 04:22:20,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:20,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:20,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:20,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:20,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:20,362 INFO L87 Difference]: Start difference. First operand 2805 states and 4301 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:21,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:21,766 INFO L93 Difference]: Finished difference Result 7901 states and 12191 transitions. [2022-10-16 04:22:21,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:21,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 90 [2022-10-16 04:22:21,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:21,820 INFO L225 Difference]: With dead ends: 7901 [2022-10-16 04:22:21,820 INFO L226 Difference]: Without dead ends: 7901 [2022-10-16 04:22:21,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:22:21,822 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 806 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:21,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 1391 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:22:21,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7901 states. [2022-10-16 04:22:22,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7901 to 5384. [2022-10-16 04:22:22,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5384 states, 4732 states have (on average 1.5274725274725274) internal successors, (7228), 4767 states have internal predecessors, (7228), 420 states have call successors, (420), 199 states have call predecessors, (420), 230 states have return successors, (693), 449 states have call predecessors, (693), 418 states have call successors, (693) [2022-10-16 04:22:22,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5384 states to 5384 states and 8341 transitions. [2022-10-16 04:22:22,093 INFO L78 Accepts]: Start accepts. Automaton has 5384 states and 8341 transitions. Word has length 90 [2022-10-16 04:22:22,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:22,093 INFO L495 AbstractCegarLoop]: Abstraction has 5384 states and 8341 transitions. [2022-10-16 04:22:22,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:22,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5384 states and 8341 transitions. [2022-10-16 04:22:22,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:22:22,100 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:22,100 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] [2022-10-16 04:22:22,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 04:22:22,101 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:22,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:22,102 INFO L85 PathProgramCache]: Analyzing trace with hash 158499898, now seen corresponding path program 1 times [2022-10-16 04:22:22,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:22,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600498710] [2022-10-16 04:22:22,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:22,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:22,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:22,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:22,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:22,272 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 04:22:22,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:22,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600498710] [2022-10-16 04:22:22,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600498710] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:22,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:22,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:22,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429827536] [2022-10-16 04:22:22,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:22,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:22,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:22,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:22,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:22,276 INFO L87 Difference]: Start difference. First operand 5384 states and 8341 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:23,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:23,866 INFO L93 Difference]: Finished difference Result 14987 states and 23313 transitions. [2022-10-16 04:22:23,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:23,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 90 [2022-10-16 04:22:23,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:23,961 INFO L225 Difference]: With dead ends: 14987 [2022-10-16 04:22:23,961 INFO L226 Difference]: Without dead ends: 14987 [2022-10-16 04:22:23,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:22:23,962 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 663 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:23,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1441 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 04:22:23,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14987 states. [2022-10-16 04:22:24,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14987 to 10203. [2022-10-16 04:22:24,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10203 states, 8959 states have (on average 1.5200357182721287) internal successors, (13618), 9026 states have internal predecessors, (13618), 788 states have call successors, (788), 391 states have call predecessors, (788), 454 states have return successors, (1579), 849 states have call predecessors, (1579), 786 states have call successors, (1579) [2022-10-16 04:22:24,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10203 states to 10203 states and 15985 transitions. [2022-10-16 04:22:24,519 INFO L78 Accepts]: Start accepts. Automaton has 10203 states and 15985 transitions. Word has length 90 [2022-10-16 04:22:24,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:24,519 INFO L495 AbstractCegarLoop]: Abstraction has 10203 states and 15985 transitions. [2022-10-16 04:22:24,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:24,520 INFO L276 IsEmpty]: Start isEmpty. Operand 10203 states and 15985 transitions. [2022-10-16 04:22:24,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:22:24,531 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:24,531 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] [2022-10-16 04:22:24,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 04:22:24,532 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:24,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:24,533 INFO L85 PathProgramCache]: Analyzing trace with hash 2066957688, now seen corresponding path program 1 times [2022-10-16 04:22:24,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:24,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666211798] [2022-10-16 04:22:24,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:24,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:24,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:24,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:24,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:24,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:24,730 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 04:22:24,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:24,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666211798] [2022-10-16 04:22:24,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666211798] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:24,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:24,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:24,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324977253] [2022-10-16 04:22:24,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:24,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:24,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:24,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:24,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:24,734 INFO L87 Difference]: Start difference. First operand 10203 states and 15985 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:26,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:26,272 INFO L93 Difference]: Finished difference Result 26986 states and 42529 transitions. [2022-10-16 04:22:26,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:26,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 90 [2022-10-16 04:22:26,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:26,401 INFO L225 Difference]: With dead ends: 26986 [2022-10-16 04:22:26,402 INFO L226 Difference]: Without dead ends: 26986 [2022-10-16 04:22:26,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:22:26,403 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 683 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:26,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1377 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:22:26,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26986 states. [2022-10-16 04:22:27,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26986 to 20191. [2022-10-16 04:22:27,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20191 states, 17795 states have (on average 1.5245855577409384) internal successors, (27130), 17926 states have internal predecessors, (27130), 1492 states have call successors, (1492), 775 states have call predecessors, (1492), 902 states have return successors, (3805), 1617 states have call predecessors, (3805), 1490 states have call successors, (3805) [2022-10-16 04:22:27,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20191 states to 20191 states and 32427 transitions. [2022-10-16 04:22:27,355 INFO L78 Accepts]: Start accepts. Automaton has 20191 states and 32427 transitions. Word has length 90 [2022-10-16 04:22:27,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:27,356 INFO L495 AbstractCegarLoop]: Abstraction has 20191 states and 32427 transitions. [2022-10-16 04:22:27,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:27,357 INFO L276 IsEmpty]: Start isEmpty. Operand 20191 states and 32427 transitions. [2022-10-16 04:22:27,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:22:27,379 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:27,379 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] [2022-10-16 04:22:27,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 04:22:27,380 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:27,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:27,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1274069450, now seen corresponding path program 1 times [2022-10-16 04:22:27,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:27,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236185592] [2022-10-16 04:22:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:27,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:27,570 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 04:22:27,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:27,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236185592] [2022-10-16 04:22:27,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236185592] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:27,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:27,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 04:22:27,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005828930] [2022-10-16 04:22:27,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:27,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 04:22:27,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:27,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 04:22:27,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 04:22:27,573 INFO L87 Difference]: Start difference. First operand 20191 states and 32427 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:29,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:29,549 INFO L93 Difference]: Finished difference Result 51372 states and 83067 transitions. [2022-10-16 04:22:29,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 04:22:29,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 90 [2022-10-16 04:22:29,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:29,905 INFO L225 Difference]: With dead ends: 51372 [2022-10-16 04:22:29,905 INFO L226 Difference]: Without dead ends: 51372 [2022-10-16 04:22:29,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 04:22:29,906 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 628 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:29,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1385 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 04:22:29,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51372 states. [2022-10-16 04:22:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51372 to 40100. [2022-10-16 04:22:31,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40100 states, 35464 states have (on average 1.5286487705842544) internal successors, (54212), 35723 states have internal predecessors, (54212), 2836 states have call successors, (2836), 1543 states have call predecessors, (2836), 1798 states have return successors, (9651), 3089 states have call predecessors, (9651), 2834 states have call successors, (9651) [2022-10-16 04:22:31,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40100 states to 40100 states and 66699 transitions. [2022-10-16 04:22:31,526 INFO L78 Accepts]: Start accepts. Automaton has 40100 states and 66699 transitions. Word has length 90 [2022-10-16 04:22:31,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:31,526 INFO L495 AbstractCegarLoop]: Abstraction has 40100 states and 66699 transitions. [2022-10-16 04:22:31,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 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 04:22:31,527 INFO L276 IsEmpty]: Start isEmpty. Operand 40100 states and 66699 transitions. [2022-10-16 04:22:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 04:22:31,569 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:31,570 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] [2022-10-16 04:22:31,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 04:22:31,570 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:31,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1804744120, now seen corresponding path program 1 times [2022-10-16 04:22:31,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:31,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348091109] [2022-10-16 04:22:31,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:31,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:31,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:31,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:31,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:31,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:31,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:31,966 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 04:22:31,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:31,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348091109] [2022-10-16 04:22:31,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348091109] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:31,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 04:22:31,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 04:22:31,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268034878] [2022-10-16 04:22:31,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:31,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 04:22:31,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:31,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 04:22:31,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 04:22:31,974 INFO L87 Difference]: Start difference. First operand 40100 states and 66699 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 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 04:22:33,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:33,610 INFO L93 Difference]: Finished difference Result 73423 states and 117491 transitions. [2022-10-16 04:22:33,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 04:22:33,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 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 90 [2022-10-16 04:22:33,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:34,011 INFO L225 Difference]: With dead ends: 73423 [2022-10-16 04:22:34,011 INFO L226 Difference]: Without dead ends: 73423 [2022-10-16 04:22:34,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-10-16 04:22:34,013 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 837 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:34,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1118 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 04:22:34,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73423 states. [2022-10-16 04:22:35,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73423 to 59623. [2022-10-16 04:22:35,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59623 states, 52599 states have (on average 1.5142112967927146) internal successors, (79646), 53115 states have internal predecessors, (79646), 4322 states have call successors, (4322), 2317 states have call predecessors, (4322), 2700 states have return successors, (13325), 4446 states have call predecessors, (13325), 4320 states have call successors, (13325) [2022-10-16 04:22:36,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59623 states to 59623 states and 97293 transitions. [2022-10-16 04:22:36,535 INFO L78 Accepts]: Start accepts. Automaton has 59623 states and 97293 transitions. Word has length 90 [2022-10-16 04:22:36,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:36,535 INFO L495 AbstractCegarLoop]: Abstraction has 59623 states and 97293 transitions. [2022-10-16 04:22:36,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 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 04:22:36,539 INFO L276 IsEmpty]: Start isEmpty. Operand 59623 states and 97293 transitions. [2022-10-16 04:22:36,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-16 04:22:36,773 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:36,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:36,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 04:22:36,776 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:36,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:36,777 INFO L85 PathProgramCache]: Analyzing trace with hash -476089532, now seen corresponding path program 1 times [2022-10-16 04:22:36,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:36,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622069338] [2022-10-16 04:22:36,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:36,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:36,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:36,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:22:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:22:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 04:22:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,115 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 04:22:37,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:37,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622069338] [2022-10-16 04:22:37,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622069338] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:22:37,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211512070] [2022-10-16 04:22:37,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:37,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:22:37,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:22:37,123 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 04:22:37,152 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 04:22:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:37,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:22:37,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:22:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 04:22:37,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:22:37,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211512070] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:37,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:22:37,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:22:37,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437288719] [2022-10-16 04:22:37,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:37,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:22:37,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:37,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:22:37,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:37,499 INFO L87 Difference]: Start difference. First operand 59623 states and 97293 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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) [2022-10-16 04:22:38,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:38,768 INFO L93 Difference]: Finished difference Result 117878 states and 191603 transitions. [2022-10-16 04:22:38,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:22:38,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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) Word has length 146 [2022-10-16 04:22:38,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:39,530 INFO L225 Difference]: With dead ends: 117878 [2022-10-16 04:22:39,530 INFO L226 Difference]: Without dead ends: 117878 [2022-10-16 04:22:39,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:39,532 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 225 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:39,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 542 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:22:39,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117878 states. [2022-10-16 04:22:42,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117878 to 117099. [2022-10-16 04:22:42,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117099 states, 103253 states have (on average 1.5126437004251692) internal successors, (156185), 104282 states have internal predecessors, (156185), 8444 states have call successors, (8444), 4633 states have call predecessors, (8444), 5400 states have return successors, (26197), 8439 states have call predecessors, (26197), 8442 states have call successors, (26197) [2022-10-16 04:22:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117099 states to 117099 states and 190826 transitions. [2022-10-16 04:22:43,420 INFO L78 Accepts]: Start accepts. Automaton has 117099 states and 190826 transitions. Word has length 146 [2022-10-16 04:22:43,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:43,420 INFO L495 AbstractCegarLoop]: Abstraction has 117099 states and 190826 transitions. [2022-10-16 04:22:43,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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) [2022-10-16 04:22:43,421 INFO L276 IsEmpty]: Start isEmpty. Operand 117099 states and 190826 transitions. [2022-10-16 04:22:43,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-16 04:22:43,732 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:43,732 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:43,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 04:22:43,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 04:22:43,946 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:43,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:43,947 INFO L85 PathProgramCache]: Analyzing trace with hash -353886428, now seen corresponding path program 1 times [2022-10-16 04:22:43,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:43,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432885810] [2022-10-16 04:22:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:43,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:44,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:44,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:44,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:44,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:22:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:44,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:22:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:44,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 04:22:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:44,595 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 04:22:44,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:44,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432885810] [2022-10-16 04:22:44,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432885810] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:22:44,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854118910] [2022-10-16 04:22:44,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:44,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:22:44,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:22:44,597 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:22:44,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 04:22:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:44,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:22:44,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:22:44,802 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 04:22:44,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:22:44,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854118910] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:44,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:22:44,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:22:44,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033124089] [2022-10-16 04:22:44,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:44,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:22:44,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:44,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:22:44,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:44,807 INFO L87 Difference]: Start difference. First operand 117099 states and 190826 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (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) [2022-10-16 04:22:46,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:22:46,482 INFO L93 Difference]: Finished difference Result 231476 states and 375963 transitions. [2022-10-16 04:22:46,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:22:46,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (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) Word has length 146 [2022-10-16 04:22:46,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:22:48,065 INFO L225 Difference]: With dead ends: 231476 [2022-10-16 04:22:48,066 INFO L226 Difference]: Without dead ends: 231476 [2022-10-16 04:22:48,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:48,067 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 231 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:22:48,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 542 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:22:48,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231476 states. [2022-10-16 04:22:52,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231476 to 229925. [2022-10-16 04:22:53,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229925 states, 202629 states have (on average 1.5110028673092204) internal successors, (306173), 204684 states have internal predecessors, (306173), 16494 states have call successors, (16494), 9265 states have call predecessors, (16494), 10800 states have return successors, (51747), 16231 states have call predecessors, (51747), 16492 states have call successors, (51747) [2022-10-16 04:22:55,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229925 states to 229925 states and 374414 transitions. [2022-10-16 04:22:55,084 INFO L78 Accepts]: Start accepts. Automaton has 229925 states and 374414 transitions. Word has length 146 [2022-10-16 04:22:55,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:22:55,085 INFO L495 AbstractCegarLoop]: Abstraction has 229925 states and 374414 transitions. [2022-10-16 04:22:55,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (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) [2022-10-16 04:22:55,085 INFO L276 IsEmpty]: Start isEmpty. Operand 229925 states and 374414 transitions. [2022-10-16 04:22:56,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-16 04:22:56,117 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:22:56,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:56,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 04:22:56,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 04:22:56,333 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:22:56,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:22:56,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1865966340, now seen corresponding path program 1 times [2022-10-16 04:22:56,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:22:56,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112839003] [2022-10-16 04:22:56,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:56,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:22:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:22:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:22:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:22:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:22:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:22:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:22:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:22:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 04:22:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,553 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 04:22:56,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:22:56,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112839003] [2022-10-16 04:22:56,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112839003] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:22:56,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550690280] [2022-10-16 04:22:56,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:22:56,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:22:56,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:22:56,556 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:22:56,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 04:22:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:22:56,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:22:56,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:22:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 04:22:56,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:22:56,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550690280] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:22:56,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:22:56,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-10-16 04:22:56,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46632959] [2022-10-16 04:22:56,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:22:56,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:22:56,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:22:56,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:22:56,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:22:56,702 INFO L87 Difference]: Start difference. First operand 229925 states and 374414 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:23:00,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:23:00,394 INFO L93 Difference]: Finished difference Result 449524 states and 735418 transitions. [2022-10-16 04:23:00,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:23:00,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 146 [2022-10-16 04:23:00,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:23:02,610 INFO L225 Difference]: With dead ends: 449524 [2022-10-16 04:23:02,611 INFO L226 Difference]: Without dead ends: 449524 [2022-10-16 04:23:02,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:23:02,612 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 236 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:23:02,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 800 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:23:02,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449524 states. [2022-10-16 04:23:11,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449524 to 449521. [2022-10-16 04:23:12,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449521 states, 395966 states have (on average 1.502171903648293) internal successors, (594809), 399558 states have internal predecessors, (594809), 31953 states have call successors, (31953), 18529 states have call predecessors, (31953), 21600 states have return successors, (108654), 31945 states have call predecessors, (108654), 31951 states have call successors, (108654) [2022-10-16 04:23:16,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449521 states to 449521 states and 735416 transitions. [2022-10-16 04:23:16,079 INFO L78 Accepts]: Start accepts. Automaton has 449521 states and 735416 transitions. Word has length 146 [2022-10-16 04:23:16,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:23:16,080 INFO L495 AbstractCegarLoop]: Abstraction has 449521 states and 735416 transitions. [2022-10-16 04:23:16,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 04:23:16,081 INFO L276 IsEmpty]: Start isEmpty. Operand 449521 states and 735416 transitions. [2022-10-16 04:23:18,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-10-16 04:23:18,652 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:23:18,652 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-10-16 04:23:18,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 04:23:18,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:23:18,866 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:23:18,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:23:18,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2084804113, now seen corresponding path program 1 times [2022-10-16 04:23:18,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:23:18,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058034802] [2022-10-16 04:23:18,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:23:18,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:23:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:23:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:23:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:23:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:23:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:23:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 04:23:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:23:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 04:23:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 04:23:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 04:23:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-10-16 04:23:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-16 04:23:19,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:23:19,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058034802] [2022-10-16 04:23:19,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058034802] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:23:19,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85041636] [2022-10-16 04:23:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:23:19,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:23:19,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:23:19,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:23:19,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 04:23:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:19,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:23:19,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:23:19,517 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-10-16 04:23:19,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:23:19,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85041636] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:23:19,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:23:19,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:23:19,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027707762] [2022-10-16 04:23:19,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:23:19,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:23:19,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:23:19,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:23:19,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:23:19,523 INFO L87 Difference]: Start difference. First operand 449521 states and 735416 transitions. Second operand has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 04:23:24,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:23:24,809 INFO L93 Difference]: Finished difference Result 449520 states and 735415 transitions. [2022-10-16 04:23:24,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:23:24,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 169 [2022-10-16 04:23:24,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:23:28,103 INFO L225 Difference]: With dead ends: 449520 [2022-10-16 04:23:28,103 INFO L226 Difference]: Without dead ends: 449518 [2022-10-16 04:23:28,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:23:28,107 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 107 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:23:28,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 391 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:23:28,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449518 states. [2022-10-16 04:23:36,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449518 to 449518. [2022-10-16 04:23:37,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449518 states, 395964 states have (on average 1.494375751330929) internal successors, (591719), 399555 states have internal predecessors, (591719), 31953 states have call successors, (31953), 18529 states have call predecessors, (31953), 21600 states have return successors, (108654), 31945 states have call predecessors, (108654), 31951 states have call successors, (108654) [2022-10-16 04:23:40,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449518 states to 449518 states and 732326 transitions. [2022-10-16 04:23:40,351 INFO L78 Accepts]: Start accepts. Automaton has 449518 states and 732326 transitions. Word has length 169 [2022-10-16 04:23:40,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:23:40,352 INFO L495 AbstractCegarLoop]: Abstraction has 449518 states and 732326 transitions. [2022-10-16 04:23:40,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 04:23:40,352 INFO L276 IsEmpty]: Start isEmpty. Operand 449518 states and 732326 transitions. [2022-10-16 04:23:42,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-10-16 04:23:42,103 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:23:42,103 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:23:42,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 04:23:42,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 04:23:42,320 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:23:42,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:23:42,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1845824173, now seen corresponding path program 1 times [2022-10-16 04:23:42,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:23:42,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306132540] [2022-10-16 04:23:42,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:23:42,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:23:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:42,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:23:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:23:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:23:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:43,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:23:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:43,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:23:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:23:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:43,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:23:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:43,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 04:23:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:43,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:23:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:43,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-16 04:23:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:43,117 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-10-16 04:23:43,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:23:43,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306132540] [2022-10-16 04:23:43,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306132540] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:23:43,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453211637] [2022-10-16 04:23:43,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:23:43,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:23:43,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:23:43,120 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:23:43,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 04:23:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:23:43,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:23:43,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:23:43,404 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 04:23:43,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:23:43,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453211637] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:23:43,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:23:43,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:23:43,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339213335] [2022-10-16 04:23:43,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:23:43,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:23:43,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:23:43,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:23:43,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:23:43,407 INFO L87 Difference]: Start difference. First operand 449518 states and 732326 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 04:23:51,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 04:23:51,469 INFO L93 Difference]: Finished difference Result 888182 states and 1441681 transitions. [2022-10-16 04:23:51,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 04:23:51,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 190 [2022-10-16 04:23:51,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 04:23:58,014 INFO L225 Difference]: With dead ends: 888182 [2022-10-16 04:23:58,015 INFO L226 Difference]: Without dead ends: 888182 [2022-10-16 04:23:58,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:23:58,019 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 167 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 04:23:58,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 536 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 04:23:58,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888182 states. [2022-10-16 04:24:17,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888182 to 882002. [2022-10-16 04:24:20,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882002 states, 776456 states have (on average 1.4922867490237695) internal successors, (1158695), 783635 states have internal predecessors, (1158695), 62345 states have call successors, (62345), 37057 states have call predecessors, (62345), 43200 states have return successors, (214462), 61821 states have call predecessors, (214462), 62343 states have call successors, (214462) [2022-10-16 04:24:30,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882002 states to 882002 states and 1435502 transitions. [2022-10-16 04:24:30,553 INFO L78 Accepts]: Start accepts. Automaton has 882002 states and 1435502 transitions. Word has length 190 [2022-10-16 04:24:30,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 04:24:30,554 INFO L495 AbstractCegarLoop]: Abstraction has 882002 states and 1435502 transitions. [2022-10-16 04:24:30,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 04:24:30,554 INFO L276 IsEmpty]: Start isEmpty. Operand 882002 states and 1435502 transitions. [2022-10-16 04:24:36,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-10-16 04:24:36,795 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 04:24:36,795 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 04:24:36,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 04:24:37,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 04:24:37,014 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 04:24:37,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 04:24:37,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1989117163, now seen corresponding path program 1 times [2022-10-16 04:24:37,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 04:24:37,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284927736] [2022-10-16 04:24:37,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:24:37,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 04:24:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 04:24:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 04:24:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 04:24:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 04:24:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 04:24:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 04:24:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:24:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 04:24:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-10-16 04:24:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-16 04:24:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-10-16 04:24:37,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 04:24:37,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284927736] [2022-10-16 04:24:37,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284927736] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 04:24:37,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931426208] [2022-10-16 04:24:37,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 04:24:37,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 04:24:37,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 04:24:37,343 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 04:24:37,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 04:24:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 04:24:37,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 04:24:37,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 04:24:37,614 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 04:24:37,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 04:24:37,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931426208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 04:24:37,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 04:24:37,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-10-16 04:24:37,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128977091] [2022-10-16 04:24:37,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 04:24:37,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 04:24:37,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 04:24:37,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 04:24:37,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 04:24:37,617 INFO L87 Difference]: Start difference. First operand 882002 states and 1435502 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)