/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.08.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:50:14,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:50:14,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:50:14,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:50:14,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:50:14,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:50:14,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:50:14,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:50:14,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:50:14,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:50:14,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:50:14,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:50:14,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:50:14,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:50:14,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:50:14,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:50:14,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:50:14,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:50:14,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:50:14,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:50:14,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:50:14,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:50:14,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:50:14,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:50:14,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:50:14,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:50:14,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:50:14,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:50:14,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:50:14,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:50:14,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:50:14,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:50:14,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:50:14,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:50:14,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:50:14,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:50:14,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:50:14,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:50:14,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:50:14,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:50:14,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:50:14,512 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 17:50:14,578 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:50:14,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:50:14,579 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:50:14,579 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:50:14,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:50:14,581 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:50:14,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:50:14,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:50:14,584 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:50:14,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:50:14,586 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:50:14,586 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:50:14,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:50:14,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:50:14,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:50:14,587 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:50:14,587 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:50:14,587 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:50:14,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:50:14,588 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:50:14,588 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:50:14,588 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:50:14,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:50:14,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:50:14,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:50:14,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:50:14,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:50:14,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:50:14,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:50:14,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:50:14,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:50:15,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:50:15,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:50:15,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:50:15,114 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:50:15,115 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:50:15,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.08.cil-1.c [2022-10-15 17:50:15,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c817a37f/7e3a5535404348f8b30f38d8561cb058/FLAGb59a1ff91 [2022-10-15 17:50:15,997 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:50:16,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.08.cil-1.c [2022-10-15 17:50:16,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c817a37f/7e3a5535404348f8b30f38d8561cb058/FLAGb59a1ff91 [2022-10-15 17:50:16,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c817a37f/7e3a5535404348f8b30f38d8561cb058 [2022-10-15 17:50:16,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:50:16,302 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:50:16,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:50:16,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:50:16,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:50:16,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:50:16" (1/1) ... [2022-10-15 17:50:16,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c237e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:16, skipping insertion in model container [2022-10-15 17:50:16,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:50:16" (1/1) ... [2022-10-15 17:50:16,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:50:16,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:50:16,571 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.08.cil-1.c[671,684] [2022-10-15 17:50:16,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:50:16,931 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:50:16,953 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.08.cil-1.c[671,684] [2022-10-15 17:50:17,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:50:17,096 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:50:17,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17 WrapperNode [2022-10-15 17:50:17,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:50:17,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:50:17,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:50:17,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:50:17,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (1/1) ... [2022-10-15 17:50:17,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (1/1) ... [2022-10-15 17:50:17,180 INFO L138 Inliner]: procedures = 44, calls = 55, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 621 [2022-10-15 17:50:17,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:50:17,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:50:17,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:50:17,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:50:17,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (1/1) ... [2022-10-15 17:50:17,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (1/1) ... [2022-10-15 17:50:17,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (1/1) ... [2022-10-15 17:50:17,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (1/1) ... [2022-10-15 17:50:17,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (1/1) ... [2022-10-15 17:50:17,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (1/1) ... [2022-10-15 17:50:17,284 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (1/1) ... [2022-10-15 17:50:17,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (1/1) ... [2022-10-15 17:50:17,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:50:17,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:50:17,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:50:17,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:50:17,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (1/1) ... [2022-10-15 17:50:17,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:50:17,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:50:17,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 17:50:17,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 17:50:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:50:17,536 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-15 17:50:17,536 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-15 17:50:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-15 17:50:17,537 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-15 17:50:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-15 17:50:17,537 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-15 17:50:17,537 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-15 17:50:17,538 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-15 17:50:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-15 17:50:17,538 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-15 17:50:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:50:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-15 17:50:17,540 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-15 17:50:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:50:17,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:50:17,735 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:50:17,739 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:50:18,743 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:50:18,761 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:50:18,762 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-10-15 17:50:18,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:50:18 BoogieIcfgContainer [2022-10-15 17:50:18,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:50:18,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:50:18,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:50:18,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:50:18,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:50:16" (1/3) ... [2022-10-15 17:50:18,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c22014f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:50:18, skipping insertion in model container [2022-10-15 17:50:18,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:50:17" (2/3) ... [2022-10-15 17:50:18,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c22014f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:50:18, skipping insertion in model container [2022-10-15 17:50:18,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:50:18" (3/3) ... [2022-10-15 17:50:18,784 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.08.cil-1.c [2022-10-15 17:50:18,807 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:50:18,807 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:50:18,875 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:50:18,885 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;@38f2716f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:50:18,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:50:18,893 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 252 states have (on average 1.6507936507936507) internal successors, (416), 255 states have internal predecessors, (416), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-10-15 17:50:18,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-10-15 17:50:18,912 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:18,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:18,914 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:18,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:18,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1636968765, now seen corresponding path program 1 times [2022-10-15 17:50:18,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:18,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314277356] [2022-10-15 17:50:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:18,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:19,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:50:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:19,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 17:50:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:19,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 17:50:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:50:19,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:19,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314277356] [2022-10-15 17:50:19,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314277356] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:19,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:19,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:50:19,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910870823] [2022-10-15 17:50:19,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:19,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:50:19,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:19,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:50:19,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:50:19,745 INFO L87 Difference]: Start difference. First operand has 283 states, 252 states have (on average 1.6507936507936507) internal successors, (416), 255 states have internal predecessors, (416), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:50:21,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:21,372 INFO L93 Difference]: Finished difference Result 380 states and 604 transitions. [2022-10-15 17:50:21,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:50:21,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 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 119 [2022-10-15 17:50:21,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:21,398 INFO L225 Difference]: With dead ends: 380 [2022-10-15 17:50:21,398 INFO L226 Difference]: Without dead ends: 378 [2022-10-15 17:50:21,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:50:21,406 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 731 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:21,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 772 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-15 17:50:21,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-10-15 17:50:21,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 280. [2022-10-15 17:50:21,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 250 states have (on average 1.556) internal successors, (389), 252 states have internal predecessors, (389), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-10-15 17:50:21,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 433 transitions. [2022-10-15 17:50:21,521 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 433 transitions. Word has length 119 [2022-10-15 17:50:21,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:21,522 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 433 transitions. [2022-10-15 17:50:21,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:50:21,523 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 433 transitions. [2022-10-15 17:50:21,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:50:21,539 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:21,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:21,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:50:21,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:21,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:21,543 INFO L85 PathProgramCache]: Analyzing trace with hash -644262864, now seen corresponding path program 1 times [2022-10-15 17:50:21,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:21,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563817631] [2022-10-15 17:50:21,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:21,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:21,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:21,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:50:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:21,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 17:50:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:21,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 17:50:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:22,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 17:50:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:22,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:50:22,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:22,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563817631] [2022-10-15 17:50:22,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563817631] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:22,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:22,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:50:22,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367244094] [2022-10-15 17:50:22,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:22,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:50:22,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:22,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:50:22,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:50:22,020 INFO L87 Difference]: Start difference. First operand 280 states and 433 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:24,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:24,927 INFO L93 Difference]: Finished difference Result 750 states and 1193 transitions. [2022-10-15 17:50:24,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:50:24,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2022-10-15 17:50:24,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:24,954 INFO L225 Difference]: With dead ends: 750 [2022-10-15 17:50:24,954 INFO L226 Difference]: Without dead ends: 750 [2022-10-15 17:50:24,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:50:24,957 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 1096 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:24,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 1227 Invalid, 1531 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-15 17:50:24,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-10-15 17:50:25,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 552. [2022-10-15 17:50:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 498 states have (on average 1.570281124497992) internal successors, (782), 501 states have internal predecessors, (782), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2022-10-15 17:50:25,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 863 transitions. [2022-10-15 17:50:25,020 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 863 transitions. Word has length 133 [2022-10-15 17:50:25,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:25,021 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 863 transitions. [2022-10-15 17:50:25,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:25,022 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 863 transitions. [2022-10-15 17:50:25,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:50:25,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:25,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:25,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:50:25,025 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:25,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:25,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1944200884, now seen corresponding path program 1 times [2022-10-15 17:50:25,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:25,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311545967] [2022-10-15 17:50:25,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:25,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:25,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:25,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:50:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:25,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 17:50:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:25,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 17:50:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 17:50:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:25,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:50:25,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:25,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311545967] [2022-10-15 17:50:25,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311545967] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:25,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:25,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:25,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110456735] [2022-10-15 17:50:25,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:25,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:25,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:25,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:25,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:25,566 INFO L87 Difference]: Start difference. First operand 552 states and 863 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:29,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:29,139 INFO L93 Difference]: Finished difference Result 1131 states and 1806 transitions. [2022-10-15 17:50:29,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:50:29,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2022-10-15 17:50:29,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:29,152 INFO L225 Difference]: With dead ends: 1131 [2022-10-15 17:50:29,152 INFO L226 Difference]: Without dead ends: 1131 [2022-10-15 17:50:29,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:50:29,155 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 1110 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:29,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 2112 Invalid, 2287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-15 17:50:29,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2022-10-15 17:50:29,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 805. [2022-10-15 17:50:29,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 727 states have (on average 1.5639614855570838) internal successors, (1137), 731 states have internal predecessors, (1137), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2022-10-15 17:50:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1254 transitions. [2022-10-15 17:50:29,244 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1254 transitions. Word has length 133 [2022-10-15 17:50:29,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:29,246 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1254 transitions. [2022-10-15 17:50:29,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:29,247 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1254 transitions. [2022-10-15 17:50:29,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:50:29,256 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:29,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:29,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:50:29,258 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:29,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:29,259 INFO L85 PathProgramCache]: Analyzing trace with hash -348880142, now seen corresponding path program 1 times [2022-10-15 17:50:29,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:29,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386676715] [2022-10-15 17:50:29,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:29,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:29,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:29,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:50:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:29,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 17:50:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:29,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 17:50:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:29,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 17:50:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:29,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:50:29,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:29,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386676715] [2022-10-15 17:50:29,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386676715] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:29,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:29,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:29,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541067633] [2022-10-15 17:50:29,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:29,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:29,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:29,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:29,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:29,713 INFO L87 Difference]: Start difference. First operand 805 states and 1254 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:33,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:33,008 INFO L93 Difference]: Finished difference Result 1840 states and 2933 transitions. [2022-10-15 17:50:33,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:50:33,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2022-10-15 17:50:33,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:33,030 INFO L225 Difference]: With dead ends: 1840 [2022-10-15 17:50:33,030 INFO L226 Difference]: Without dead ends: 1840 [2022-10-15 17:50:33,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:50:33,033 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 1187 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 2074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:33,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 1475 Invalid, 2074 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [99 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-15 17:50:33,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2022-10-15 17:50:33,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1312. [2022-10-15 17:50:33,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1186 states have (on average 1.5581787521079258) internal successors, (1848), 1192 states have internal predecessors, (1848), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2022-10-15 17:50:33,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 2041 transitions. [2022-10-15 17:50:33,144 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 2041 transitions. Word has length 133 [2022-10-15 17:50:33,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:33,145 INFO L495 AbstractCegarLoop]: Abstraction has 1312 states and 2041 transitions. [2022-10-15 17:50:33,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:33,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 2041 transitions. [2022-10-15 17:50:33,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:50:33,150 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:33,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:33,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:50:33,152 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:33,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:33,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1378264820, now seen corresponding path program 1 times [2022-10-15 17:50:33,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:33,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292480438] [2022-10-15 17:50:33,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:33,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:33,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:50:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:33,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 17:50:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:33,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 17:50:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:33,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 17:50:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:50:33,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:33,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292480438] [2022-10-15 17:50:33,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292480438] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:33,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:33,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:33,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899806553] [2022-10-15 17:50:33,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:33,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:33,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:33,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:33,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:33,576 INFO L87 Difference]: Start difference. First operand 1312 states and 2041 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:37,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:37,017 INFO L93 Difference]: Finished difference Result 3184 states and 5051 transitions. [2022-10-15 17:50:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:50:37,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2022-10-15 17:50:37,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:37,047 INFO L225 Difference]: With dead ends: 3184 [2022-10-15 17:50:37,047 INFO L226 Difference]: Without dead ends: 3184 [2022-10-15 17:50:37,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:50:37,051 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 1102 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 2221 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:37,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 2102 Invalid, 2291 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 2221 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-15 17:50:37,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2022-10-15 17:50:37,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 2327. [2022-10-15 17:50:37,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2105 states have (on average 1.5534441805225654) internal successors, (3270), 2115 states have internal predecessors, (3270), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2022-10-15 17:50:37,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3621 transitions. [2022-10-15 17:50:37,168 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3621 transitions. Word has length 133 [2022-10-15 17:50:37,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:37,169 INFO L495 AbstractCegarLoop]: Abstraction has 2327 states and 3621 transitions. [2022-10-15 17:50:37,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:37,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3621 transitions. [2022-10-15 17:50:37,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:50:37,173 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:37,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:37,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:50:37,174 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:37,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:37,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1849621170, now seen corresponding path program 1 times [2022-10-15 17:50:37,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:37,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203737653] [2022-10-15 17:50:37,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:37,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:37,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:37,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:50:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:37,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 17:50:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 17:50:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:37,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 17:50:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:50:37,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:37,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203737653] [2022-10-15 17:50:37,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203737653] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:37,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:37,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:37,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668543699] [2022-10-15 17:50:37,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:37,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:37,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:37,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:37,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:37,520 INFO L87 Difference]: Start difference. First operand 2327 states and 3621 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:40,950 INFO L93 Difference]: Finished difference Result 5870 states and 9297 transitions. [2022-10-15 17:50:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:50:40,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2022-10-15 17:50:40,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:40,996 INFO L225 Difference]: With dead ends: 5870 [2022-10-15 17:50:40,996 INFO L226 Difference]: Without dead ends: 5870 [2022-10-15 17:50:40,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:50:40,998 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 1098 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 2216 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 2098 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:40,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 2098 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2216 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-15 17:50:41,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5870 states. [2022-10-15 17:50:41,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5870 to 4362. [2022-10-15 17:50:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4362 states, 3948 states have (on average 1.5501519756838906) internal successors, (6120), 3966 states have internal predecessors, (6120), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2022-10-15 17:50:41,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 6805 transitions. [2022-10-15 17:50:41,224 INFO L78 Accepts]: Start accepts. Automaton has 4362 states and 6805 transitions. Word has length 133 [2022-10-15 17:50:41,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:41,224 INFO L495 AbstractCegarLoop]: Abstraction has 4362 states and 6805 transitions. [2022-10-15 17:50:41,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:41,225 INFO L276 IsEmpty]: Start isEmpty. Operand 4362 states and 6805 transitions. [2022-10-15 17:50:41,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:50:41,233 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:41,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:41,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:50:41,234 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:41,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:41,235 INFO L85 PathProgramCache]: Analyzing trace with hash 202258228, now seen corresponding path program 1 times [2022-10-15 17:50:41,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:41,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595687792] [2022-10-15 17:50:41,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:41,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:41,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:50:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:41,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 17:50:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 17:50:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:41,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 17:50:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:50:41,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:41,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595687792] [2022-10-15 17:50:41,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595687792] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:41,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:41,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:41,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756183444] [2022-10-15 17:50:41,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:41,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:41,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:41,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:41,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:41,714 INFO L87 Difference]: Start difference. First operand 4362 states and 6805 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:45,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:45,030 INFO L93 Difference]: Finished difference Result 11236 states and 17823 transitions. [2022-10-15 17:50:45,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:50:45,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2022-10-15 17:50:45,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:45,124 INFO L225 Difference]: With dead ends: 11236 [2022-10-15 17:50:45,124 INFO L226 Difference]: Without dead ends: 11236 [2022-10-15 17:50:45,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:50:45,126 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 1094 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 2281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:45,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 2094 Invalid, 2281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-15 17:50:45,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11236 states. [2022-10-15 17:50:45,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11236 to 8445. [2022-10-15 17:50:45,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8445 states, 7647 states have (on average 1.548058061985092) internal successors, (11838), 7681 states have internal predecessors, (11838), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2022-10-15 17:50:45,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8445 states to 8445 states and 13245 transitions. [2022-10-15 17:50:45,580 INFO L78 Accepts]: Start accepts. Automaton has 8445 states and 13245 transitions. Word has length 133 [2022-10-15 17:50:45,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:45,580 INFO L495 AbstractCegarLoop]: Abstraction has 8445 states and 13245 transitions. [2022-10-15 17:50:45,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:45,581 INFO L276 IsEmpty]: Start isEmpty. Operand 8445 states and 13245 transitions. [2022-10-15 17:50:45,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:50:45,593 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:45,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:45,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:50:45,594 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:45,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:45,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1929092494, now seen corresponding path program 1 times [2022-10-15 17:50:45,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:45,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555522896] [2022-10-15 17:50:45,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:45,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:45,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:45,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:50:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:45,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 17:50:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 17:50:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 17:50:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:46,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:50:46,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:46,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555522896] [2022-10-15 17:50:46,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555522896] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:46,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:46,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:46,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420506401] [2022-10-15 17:50:46,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:46,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:46,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:46,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:46,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:46,045 INFO L87 Difference]: Start difference. First operand 8445 states and 13245 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:49,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:49,495 INFO L93 Difference]: Finished difference Result 21954 states and 34993 transitions. [2022-10-15 17:50:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:50:49,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2022-10-15 17:50:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:49,653 INFO L225 Difference]: With dead ends: 21954 [2022-10-15 17:50:49,653 INFO L226 Difference]: Without dead ends: 21954 [2022-10-15 17:50:49,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:50:49,655 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 1093 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 2203 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:49,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 2088 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2203 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-15 17:50:49,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21954 states. [2022-10-15 17:50:50,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21954 to 16640. [2022-10-15 17:50:50,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16640 states, 15074 states have (on average 1.5467692715934722) internal successors, (23316), 15140 states have internal predecessors, (23316), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2022-10-15 17:50:50,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16640 states to 16640 states and 26329 transitions. [2022-10-15 17:50:50,420 INFO L78 Accepts]: Start accepts. Automaton has 16640 states and 26329 transitions. Word has length 133 [2022-10-15 17:50:50,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:50,421 INFO L495 AbstractCegarLoop]: Abstraction has 16640 states and 26329 transitions. [2022-10-15 17:50:50,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:50,423 INFO L276 IsEmpty]: Start isEmpty. Operand 16640 states and 26329 transitions. [2022-10-15 17:50:50,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:50:50,444 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:50,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:50,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:50:50,445 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:50,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:50,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1327290228, now seen corresponding path program 1 times [2022-10-15 17:50:50,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:50,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620183396] [2022-10-15 17:50:50,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:50,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:50,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:50,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:50:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:50,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 17:50:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:50,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 17:50:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:50,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 17:50:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:50:50,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:50,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620183396] [2022-10-15 17:50:50,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620183396] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:50,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:50,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:50,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622554702] [2022-10-15 17:50:50,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:50,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:50,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:50,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:50,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:50,942 INFO L87 Difference]: Start difference. First operand 16640 states and 26329 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:54,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:50:54,268 INFO L93 Difference]: Finished difference Result 43297 states and 69601 transitions. [2022-10-15 17:50:54,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:50:54,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2022-10-15 17:50:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:50:54,440 INFO L225 Difference]: With dead ends: 43297 [2022-10-15 17:50:54,441 INFO L226 Difference]: Without dead ends: 43297 [2022-10-15 17:50:54,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:50:54,447 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 1088 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:50:54,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 2080 Invalid, 2257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-10-15 17:50:54,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43297 states. [2022-10-15 17:50:55,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43297 to 33156. [2022-10-15 17:50:55,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33156 states, 30054 states have (on average 1.5469488254475279) internal successors, (46492), 30184 states have internal predecessors, (46492), 2198 states have call successors, (2198), 774 states have call predecessors, (2198), 902 states have return successors, (4513), 2325 states have call predecessors, (4513), 2198 states have call successors, (4513) [2022-10-15 17:50:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33156 states to 33156 states and 53203 transitions. [2022-10-15 17:50:56,229 INFO L78 Accepts]: Start accepts. Automaton has 33156 states and 53203 transitions. Word has length 133 [2022-10-15 17:50:56,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:50:56,230 INFO L495 AbstractCegarLoop]: Abstraction has 33156 states and 53203 transitions. [2022-10-15 17:50:56,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:50:56,231 INFO L276 IsEmpty]: Start isEmpty. Operand 33156 states and 53203 transitions. [2022-10-15 17:50:56,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:50:56,274 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:50:56,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:50:56,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:50:56,276 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:50:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:50:56,277 INFO L85 PathProgramCache]: Analyzing trace with hash -814570250, now seen corresponding path program 1 times [2022-10-15 17:50:56,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:50:56,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385942819] [2022-10-15 17:50:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:50:56,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:50:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:56,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:50:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:56,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 17:50:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:56,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 17:50:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 17:50:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:56,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-15 17:50:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:50:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:50:56,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:50:56,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385942819] [2022-10-15 17:50:56,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385942819] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:50:56,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:50:56,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:50:56,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357221500] [2022-10-15 17:50:56,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:50:56,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:50:56,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:50:56,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:50:56,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:50:56,774 INFO L87 Difference]: Start difference. First operand 33156 states and 53203 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 17:51:00,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:51:00,984 INFO L93 Difference]: Finished difference Result 101475 states and 163773 transitions. [2022-10-15 17:51:00,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:51:00,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2022-10-15 17:51:00,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:51:01,883 INFO L225 Difference]: With dead ends: 101475 [2022-10-15 17:51:01,884 INFO L226 Difference]: Without dead ends: 101475 [2022-10-15 17:51:01,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:51:01,886 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 1417 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 2247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:51:01,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1441 Valid, 2065 Invalid, 2247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2168 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-10-15 17:51:01,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101475 states.